What is the value of x -3(-x)-6=-3x+10
Answers
-3 -3
(-x)-6=-3x+7
-6 -6
(-x)=-3x+1
i only got this far!! im so sorry!!
Related Questions
In a sale, the price of a book is reduced by 25%.
The price of the book in the sale is £12
Work out the original price of the book
Answers
Question: In a sale, the price of a book is reduced by 25%. The price of the book in the sale is £12. Work out the original price of the book
Answer: £16
Step-by-step explanation:
To determine the original price of the book, we can use the fact that the sale price is 75% (100% - 25%) of the original price. Let's denote the original price as x.
75% of x = £12
To solve for x, we can set up the equation:
0.75x = £12
To isolate x, we divide both sides of the equation by 0.75:
x = £12 / 0.75
x = £16
Therefore, the original price of the book was £16.
Solve for x.
(13x-32)
S
T
V
(7x + 22)°
U
Answers
Answer:
x=9
Step-by-step explanation:
13x-32 and 7x+22 are equal to each other (angles) so
13x-32=7x+22
13x-7x=22+32
6x=54
x=54/6
x=9
simplify
√(8+2√15)
Please hurry
Answers
Decimal form is 3.96811878
Write an equation of the parabola in vertex form.
Answers
Answer:
\(y = -16(x - 3)^{2} + 150\)
Step-by-step explanation:
Given the points (3, 150) and (1, 86):
And since the parabola is facing down, then the vertex (h, k) is the maximum point of the parabola, which is given by the ordered pair, (3, 150).
Thus, we can plug those h and k values into the following equation in vertex form:
\(f(x) = a(x - h)^{2} + k\)
\(f(x) = a(x - 3)^{2} + 150\)
Next, we can use the x and y values of the other ordered pair, (1, 86), and plug those into the equation:
\(86 = a(1 - 3)^{2} + 150\)
\(86 = a(-2)^{2} + 150\)
\(86 = 4a + 150\)
We must now subtract 150 from both sides of the equation:
86 - 150 = 4a + 150 - 150
-64 = 4a
Now we can solve for the value of a :
\(\frac{-64}{4} = \frac{4a}{4}\)
-16 = a
Therefore, the equation of the parabola in vertex form is:
\(y = -16(x - 3)^{2} + 150\)
My lizard Isabella is 4 2/6 inches long. My lizard Kendall is 2 times as long. How long is my lizard Kendall?
8 4/12
8
8 2/6
8 4/6
Answers
Just do 4 2/6 *2= 8 4/6
A developer wants to enclose a rectangular grassy lot that borders a city street for parking. If the developer has 228 feet of fencing and does not fence the side along the street, what is the largest area that can be enclosed?
Answers
The developer can enclose a rectangular grassy lot of dimensions 114 feet by 57 feet to get the largest area of 6498 square feet.
What is the area of the rectangle?The area of a rectangle is defined as the product of the length and width.
Let's denote the length of the rectangular grassy lot as L and its width as W.
Therefore, the total length of fencing required is:
L + 2W = 228
Solving this equation for L, we get:
L = 228 - 2W
The area of the rectangular grassy lot is given by:
A = LW
Substituting the expression for L we obtained earlier, we get:
A = (228 - 2W)W
Simplifying this expression, we get:
A = 228W - 2W²
The derivative of the area function with respect to W and set it to zero:
dA/dW = 228 - 4W = 0
Solving for W, we get:
W = 57
Substituting this value of W back into the expression for L, we get:
L = 228 - 2(57) = 114
Therefore, the largest area that can be enclosed is:
A = LW = 114 x 57 = 6498 square feet
So, the developer can enclose a rectangular grassy lot of dimensions 114 feet by 57 feet to get the largest area of 6498 square feet.
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Due today.. ixl assignments. I have to pick the equation, then solve it.
Answers
He sold in total (all ) 97
The 1st week of December he sold only 43 so that means he sold more so you have to add.
You need to find F
So F= 97-43
F= 54
So if you add 54+ 43= 97
A 20-cup fruit salad that is 15% strawberries is in a large container. A second fruit salad is added to the same container, resulting is 28 cups of fruit salad that is 25% strawberries. What percent of the second fruit salad is strawberries?
Answers
The percent of the second fruit salad is strawberries should be 10%.
Important information:A 20-cup fruit salad that is 15% strawberries is in a large container. A second fruit salad is added to the same container, resulting is 28 cups of fruit salad that is 25% strawberries. Calculation of percentage:= 25% - 15%
= 10%
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Determine the intervals on which the graph of y = (x) is concave up or concave down, and find the x-values at which the points of inflection occur.
(x)=x (x − 9 √x), x > 0
(Enter an exact answer. Use symbolic notation and fractions where needed. Give your answer in the form of a comma separated list, if necessary. Enter DNE if there are no points of inflection.)
x =
(Use symbolic notation and fractions where needed. Give your answers as intervals in the form (∗,∗).
Use the symbol [infinity] for infinity, ∪ for combining intervals, and an appropriate type of parenthesis "(", ")", "[", or "]", depending on whether the interval is open or closed. Enter ∅
if the interval is empty.)
is concave up when x∈
is concave down when x∈
Answers
The graph of y = f(x) is concave up for x ∈ (0, (8/13)²) and concave down for x ∈ ((8/13)², ∞). The point of inflection occurs at x = (8/13)².
To determine the intervals on which the graph of y = f(x) is concave up or concave down, we need to find the second derivative of f(x) and analyze its sign.
Given f(x) = x(x - 9√x), we can find the second derivative by differentiating twice.
First, let's find the first derivative:
f'(x) = 2x - 9/2√x - 9/2x√x.
Now, let's find the second derivative:
f''(x) = 2 - 9/(4√x) - 9/2√x - 9/4√x.
To determine the intervals of concavity, we need to analyze the sign of the second derivative.
For concave up: f''(x) > 0.
2 - 9/(4√x) - 9/2√x - 9/4√x > 0.
For concave down: f''(x) < 0.
2 - 9/(4√x) - 9/2√x - 9/4√x < 0.
Now, let's solve these inequalities:
For concave up:
2 - (9/4√x)(1 + 2 + 1) > 0.
2 - 13/4√x > 0.
√x < 8/13.
Taking the square of both sides, we get:
x < (8/13)².
For concave down:
2 - (9/4√x)(1 + 2 + 1) < 0.
2 - 13/4√x < 0.
√x > 8/13.
Taking the square of both sides, we get:
x > (8/13)².
So, the intervals on which the graph is concave up are (0, (8/13)²) and the intervals on which the graph is concave down are ((8/13)², ∞).
To find the points of inflection, we need to determine where the concavity changes. This occurs when the second derivative changes sign or is equal to zero.
Setting f''(x) = 0 and solving for x, we get:
2 - 9/(4√x) - 9/2√x - 9/4√x = 0.
Simplifying, we have:
2 - (13/4√x)(1 + 2 + 1) = 0.
2 - 13/4√x = 0.
√x = 8/13.
Squaring both sides, we find:
x = (8/13)².
Therefore, the point of inflection occurs at x = (8/13)².
The graph of y = f(x) is concave up for x ∈ (0, (8/13)²) and concave down for x ∈ ((8/13)², ∞). The point of inflection occurs at x = (8/13)².
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A bag contains 4 purple beads and 3 green beads. A bead is drawn and then replaced before drawing the second bead. Find the probability both beads drawn are green.
A) 16/49
B) 6/7
C) 6/49
D) 9/49
Answers
Answer:
9/49
Step-by-step explanation:
4 purple beads and 3 green beads= 7 beads
P( green) = green = total = 3/7
Replace the bead
4 purple beads and 3 green beads= 7 beads
P( green) = green = total = 3/7
P( green , replace, green) = 3/7 * 3/7 = 9/49
if you pulled once, the probability would be 3/7. multiply 3/7*3/7 to get 9/49
hope this helps!
Sonji has $5.25 in nickels and dimes.The coin value can be modeled by the equation 0.10 d plus 0.05 n equals 5.25, where d represents the number of dimes and n represents the number of nickels. If Sonji has 21 dimes, how many nickels does she have?
35
42
63
105
Answers
Find the specified areas for a Upper N left-parenthesis 0 comma 1 right-parenthesis density. (a) The area below z equals 1.04 Round your answer to three decimal places. areaequals the absolute tolerance is +/-0.001 (b) The area above z equals -1.4 Round your answer to three decimal places. areaequals the absolute tolerance is +/-0.001 (c) The area between z equals 1.1 and z equals 2.1 Round your answer to three decimal places. areaequals the absolute tolerance is +/-0.001
Answers
The area between z=1.1 and z=2.1 is approximately 0.982 - 0.864 = 0.118, rounded to three decimal places.
To find the area below z=1.04 for an Upper N(0,1) density, you will need to use the standard normal distribution table or a calculator with a z-table function. Here are the steps:
1. Locate the value of z=1.04 in the table or use the calculator's function.
2. Find the corresponding area value (which represents the probability or percentage of values below z=1.04).
The area below z=1.04 is approximately 0.851, rounded to three decimal places.
(b) To find the area above z=-1.4 for an Upper N(0,1) density, follow these steps:
1. Locate the value of z=-1.4 in the table or use the calculator's function.
2. Find the corresponding area value.
3. Since we need the area above z=-1.4, subtract the area value found in step 2 from 1.
The area above z=-1.4 is approximately 1 - 0.0808 = 0.919, rounded to three decimal places.
(c) To find the area between z=1.1 and z=2.1 for an Upper N(0,1) density, follow these steps:
1. Locate the values of z=1.1 and z=2.1 in the table or use the calculator's function.
2. Find the corresponding area values for both z=1.1 and z=2.1.
3. Subtract the area value of z=1.1 from the area value of z=2.1 to find the area between them.
The area between z=1.1 and z=2.1 is approximately 0.982 - 0.864 = 0.118, rounded to three decimal places.
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I WILL MARK BRAINLIEST!f(x)=x/x-7
Determine for each x-value whether it is in the domain of f or not
Answers
Answer:
see explanation
Step-by-step explanation:
Given
f(x) = \(\frac{x}{x-7}\)
The denominator cannot be zero as this would make f(x) undefined.
Equating the denominator to zero and solving gives the value that x cannot be.
solve
x - 7 = 0 ⇒ x = 7 ← excluded value
Thus
x = - 7 → in domain
x = 0 → in domain
x = 7 → not in domain
Answer:
-7= in domain
0= in domain
7= not in domain
Step-by-step explanation:
give the other person brainliest not me! they did really good!!!!
At a computer manufacturing company, the actual size of computer chips is normally distributed with a mean of 1 cm and standard deviation of 0.1 cm. A random sample of 12 computer chips is taken.
Above what value do 2.5% of the sample means fall?
A. 1.051
B. 1.960
C. 1.645
D. 1.053
E. 1.057
Answers
The correct option is D, the 2.5% of the sample means falls above 1.053
Above what value do 2.5% of the sample means fall?To determine the value above which 2.5% of the sample means fall, we need to calculate the z-score corresponding to the 2.5th percentile of the standard normal distribution.
The formula for the z-score is given by:
z = (x - μ) / (σ / √n)
Where:
x is the value we want to find,μ is the population mean (1 cm in this case),σ is the population standard deviation (0.1 cm in this case),n is the sample size (12 in this case).To find the z-score corresponding to the 2.5th percentile, we look up the z-score in the standard normal distribution table or use a calculator. The z-score that corresponds to the 2.5th percentile is approximately -1.96.
Now, we can solve for x using the formula:
-1.96 = (x - 1) / (0.1 / √12)
Multiplying both sides by (0.1 / √12):
-1.96 * (0.1 / √12) = x - 1
Simplifying the left side:
-1.96 * 0.1 / √12 ≈ -0.05385
Adding 1 to both sides:
-0.05385 + 1 ≈ 0.94615
Therefore, the value above which 2.5% of the sample means fall is approximately 0.94615 cm.
None of the provided answer choices match this value exactly. However, the closest option is: D. 1.053
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Your firm enters into a swap agreement with a notional principal of $40 million wherein the firm pays a fixed rate of interest of 5.50 percent and receives a variable rate of interest equal to LIBOR plus 150 basis points. If LIBOR is currently 3.75 percent, the NET amount your firm will receive ( ) or pay (-) on the next transaction date is
Answers
Based on the given information, the net amount your firm will receive on the next transaction date can be calculated by subtracting the variable interest rate from the fixed interest rate.
In the swap agreement, your firm pays a fixed interest rate of 5.50 percent and receives a variable interest rate equal to LIBOR (London Interbank Offered Rate) plus 150 basis points. LIBOR is currently 3.75 percent.
To calculate the net amount your firm will receive on the next transaction date, we need to subtract the variable interest rate from the fixed interest rate.
Fixed interest rate: 5.50%
Variable interest rate: LIBOR (3.75%) + 150 basis points (1.50%) = 5.25%
Therefore, the net amount your firm will receive on the next transaction date is the difference between the fixed interest rate and the variable interest rate, which is 0.25%.
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A gallon of milk costs $2.30. What is the cost per quart?
Answers
Answer:
57.5p
Step-by-step explanation:
$2.30 / 4 = 57.5p
at the mp donut hole factory, niraek, theo, and akshaj are coating spherical donut holes in powdered sugar. niraek's donut holes have radius $6$ mm, theo's donut holes have radius $8$ mm, and akshaj's donut holes have radius $10$ mm. all three workers coat the surface of the donut holes at the same rate and start at the same time. assuming that the powdered sugar coating has negligible thickness and is distributed equally on all donut holes, how many donut holes will niraek have covered by the first time all three workers finish their current donut hole at the same time?
Answers
Niraek will have covered 400 donut holes by the time all three workers finish their current donut holes at the same time.
The time it takes to coat a donut hole is directly proportional to the surface area of the donut hole.
The surface area of a sphere is given by the formula:
Surface Area = 4πr²
Here, r is the radius of the sphere.
Comparing the surface areas of the donut holes:
Niraek's donut hole: Surface Area = 4π(6²)
Theo's donut hole: Surface Area = 4π(8²)
Akshaj's donut hole: Surface Area = 4π(10²)
Now, let's find the LCM of the surface areas to determine the time it takes for all workers to finish:
LCM(144π, 256π, 400π) = 57600π mm²
This means that it will take the same amount of time for all three workers to finish their current donut holes when they have covered a total surface area of 57600π mm².
Number of donut holes = (Total surface area) / (Surface area of Niraek's donut hole)
= (57600π mm²) / (144π mm²)
= 57600 / 144
= 400
Therefore, Niraek will have covered 400 donut holes by the time all three workers finish their current donut holes at the same time.
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Lance is a part-time employee at Subway. One M-W & Friday he works from 4pm-9pm with a non paid 30 minute lunch. On Saturday he works from 12pm til 6pmwith a non paid thirty minute lunch. If he earns $11.75 per hour, how many hours and minutes has he worked and what is his gross pay.
Answers
Lance had a gross pay of $117.5 working on Friday and Saturday
How is his gross payTo determine his gross pay, we have to find the number of hours he worked and multiply it by his hourly wage.
This can be done by;
4pm - 9pm = 5 hours.
But he had a non-paid 30 minutes break which will give us his work hours on Friday as 4 hours 30 minutes or 4.5 hours.
On Saturday, he worked from 12pm - 6pm which will give us a work time of 6 hours. He also took a non-paid 30 minutes lunch and his total work time on Saturday is 5 hours 30 minutes or 5.5 hours.
If we add the total numbers of hours worked, we will get
4.5 + 5.5 = 10 hours.
Now we can multiply this by the hourly wage.
10 * 11.75 = 117.5
His gross pay is $117.5
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7-3 study guide and intervention similar triangles
Answers
For Identifying the Similar Triangles Here are three ways to show that two triangles are similar.
AA Similarity Two angles of one triangle are congruent to two angles of another triangle.
SSS Similarity The measures of the corresponding side lengths of two triangles are proportional.
SAS Similarity The measures of two side lengths of one triangle are proportional to the measures of two corresponding side lengths of another triangle, and the included angles are congruent.
Intervention is the The measures of two side lengths of one triangle are proportional to the measures of two corresponding side lengths of another triangle, and the included angles are congruent.
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Is 12/5 a integer number?
Answers
Answer:
Step-by-step explanation:
No. It has to be a whole number in order to be an integer, and 12/5 = 2.4, and therefore is not a whole number.
A supermarket gives a special
offer to cus-
tomers who purchase at least a pack of
vests and a pack of T-shirts. The offer is
restricted to a total of 7 of these items.
a) Write down three inequalities which
must be satisfied.
(b) Draw the graphs of the above condi-
tions and shade the region that satis-
fies them.
(c) If the supermarket makes a gain of N5
on each vest and N8 on each T-shirt,
find the maximum gain made by the
supermarket.
Answers
A) the three inequalities that must be satisfied are:
The number of vests, represented by x, must be a non-negative integer: x ≥ 0.The number of T-shirts, represented by y, must also be a non-negative integer: y ≥ 0.The total number of vests and T-shirts must not exceed 7: x + y ≤ 7.B) Graph shaded and satisfying all conditions is attached.
What is an inequality?An inequality in mathematics is a relationship that makes a non-equal comparison between two integers or other mathematical expressions.
It is most commonly used to compare the sizes of two numbers on a number line.
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one ball is drawn at random from a box containing 4 red balls, 7 white balls, and 5 blue balls. determine the probability that the ball drawn is red or white.
Answers
Probability of drawing a red or white ball.
One ball is drawn at random from a box containing 4 red balls, 7 white balls, and 5 blue balls.
Determine the probability that the ball drawn is red or white.
The total number of balls in the box is 4+7+5=16 balls. The probability of drawing a red ball is 4/16. The probability of drawing a white ball is 7/16.The probability of drawing either a red or white ball is given by the sum of the individual probabilities. Hence, the probability of drawing a red or white ball is:(4/16) + (7/16) = (11/16)
Therefore, the probability that the ball drawn is red or white is 11/16.
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Select ALL of the following lines that have an x-intercept of (3, 0) and a y-intercept of (0,-4)
□y=4/3x-4
□y=-4/3x-4
□y=3x-4
□ Y=4/3(x-3)
□ y+4=4/3 (x-3)
□y+4=4/3x
Answers
The lines that have an x-intercept of (3,0) and a y-intercept of (0,-4) are:
y = 4/3x - 4
y + 4 = 4/3(x - 3)
To find a line with a given x-intercept and y-intercept, we can use the slope-intercept form of a line, which is:
y = mx + b
where m is the slope of the line, and b is the y-intercept (the y-coordinate where the line intersects the y-axis).
Both of these lines pass through points (3,0) and (0,-4), so they have the desired x- and y-intercepts.
The other lines do not pass through both of these points
y = -4/3x - 4 does not pass through (3,0)
y = 3x - 4 does not pass through (0,-4)
Y=4/3(x-3) does not pass through (0,-4)
y+4=4/3x does not pass through (3,0)
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hi hottie, pls help me !
Mrs. St. Louis purchased an iPhone 12 Pro. The decreasing value of her phone, after t years, is modeled by the function V(t)=1,200(0.65)^t
Fill in the numbers from the options to correctly complete the statements interpreting this function.
The phone initially cost $______
The value of the phone is depreciating at a rate of _____ % each year.
Answers
Answer:
1200
0.65
The answers are in the function
Help it’s literally 2AM
Answers
Answer:
10
Step-by-step explanation:
4x+8+3x+12=90
x=10
this is the solution hope it's helpful
Without using calculator, determine between which two integers the following surds lie (d)⁵√30 (e)³√45
Answers
Answer:
30^(1/5) is in (1, 2)45^(1/3) is in (3, 4)Step-by-step explanation:
You want to know the consecutive integers that bound the values of 30^(1/5) and 45^(1/3).
Powers and rootsThe fifth root of 30 will lie between the two integers whose 5th powers lie on either side of 30:
1^5 = 1 < 30
2^5 = 32 > 30
So, the fifth root of 30 lies between 1 and 2:
\(\boxed{1 < \sqrt[5]{30} < 2}\)
The cube root of 45 will lie between the two integers whose cubes lie on either side of 45:
3^3 = 27 < 45
4^3 = 64 > 45
So, the cube root of 45 lies between 3 and 4:
\(\boxed{3 < \sqrt[3]{45} < 4}\)
__
Additional comment
A calculator confirms this:
\(\sqrt[5]{30}\approx 1.974\\\sqrt[3]{45}\approx3.557\)
2
y
b
P
0
The equation of the line / in the diagram is y = 5-x.
The line cuts the y-axis at P.
a
Write down the co-ordinates of P.
Write down the gradient of the line 1.
NOT TO
SCALE
Answers
Given that the equation of the line in the diagram is `y = 5 - x`. The line cuts the y-axis at P. So, the coordinates of point P are (0,5) and the gradient of the line is `-1`.
The equation of the line can be written as `y = -1x + 5`.Therefore, the y-intercept of the line is 5. Therefore, the coordinates of point P are (0,5).
To find the gradient of the line, we have to write the equation of the line in the form of `y = mx + c`.
We can rewrite `y = -1x + 5` as `y = (-1)x + 5`.From the above form of the equation, we can see that the gradient `m` is `-1`.Therefore, the gradient of line 1 is `-1`.Hence, the required answer is: Coordinates of point P is `(0,5)`.The gradient of the line is `-1`.
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Alice and Bob are using the ElGamal cipher with the parameters p = 149 and a = 2. Their parameters are small and we decide to crack the cipher. Suppose Alice is observed sending public ephemeral key kg = 108 and Bob sends public key p = 7. Alice is observed transmitting the ciphertext y = 47. a) What is the masking key km? b) What is the plaintext?
Answers
To crack the ElGamal cipher, we first need to calculate the private key for Alice. Given that Alice uses a public ephemeral key kg of 108 and Bob's public key p is 7, we can use brute force to find x such that 7^x ≡ 108 (mod 149). After trying out several values of x, we find that x = 62 satisfies this equation.
Next, we can compute the masking key km using Bob's public key p and Alice's private key x: km = 7^62 mod 149 = 27.
Finally, we can obtain the plaintext message by calculating y/km modulo p:
y/km mod p = 47/27 mod 7 = 6
Hence, the plaintext message sent by Alice is 6.
In summary, we were able to crack the ElGamal cipher used by Alice and Bob with small parameters. We found the private key for Alice by solving the discrete logarithm problem using brute force. Then, we calculated the masking key using Bob's public key and Alice's private key. Finally, we obtained the plaintext message by dividing the ciphertext by the masking key and taking the modulo with Bob's public key.
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suppose that q(x) is the statement ""x 2 = 2x."" what are the truth values of the following statements? assume x is representing all real numbers.
Answers
The truth values of the given statements in terms of q(x) are: q(0) is true, q(1) is false, q(-2) is false, and q(2) is true.
The statement q(x) is x² = 2x. Now, we will check the truth value of each statement in terms of q(x):
(i) q(0): \(0^2=2\times 0\)
q(0): 0 = 0; so, the statement q(0) is true.
(ii) q(1): \(1^2=2\times 1\)
q(1): 1 = 2; so, the statement q(1) is false.
(iii) q(-2): \((-2)^2=2\times (-2)\)
q(-2): 4 = -4; so, the statement q(-2) is false.
(iv) q(2): \(2^2=2\times 2\)
q(2): 4 = 4; so, the statement q(2) is true.
So, the truth values of the given statements in terms of q(x) are: q(0) is true, q(1) is false, q(-2) is false, and q(2) is true.
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Help I’m failing math
Answers
Answer:
can you send a more clear photo its quite blurry