hola quien habla español bueno ya no Adios :)
Answer:
C.(B and D
Step-by-step explanation:
convert $2.40 into cents
Answer: 240¢
Step-by-step explanation:
100¢ in a dollar.
$2.40 * 100 = 240
240¢
Find the maximum and minimum values achieved by f(x) =x3 − 9x2 + 15x + 18 on the interval [0,6]
The maximum value achieved by f(x) on the interval [0,6] is 21, which occurs at x=3. The minimum value is -12, which occurs at x=0 and x=6.
To find these values, we take the derivative of f(x), set it equal to zero, and solve for x. We then plug in the values of x and evaluate f(x) to find the corresponding maximum and minimum values.
Since the derivative is positive to the left of x=3 and negative to the right, we know that we have a maximum value at x=3.
Similarly, since the derivative is negative to the left of x=0 and positive to the right of x=6, we know that we have minimum values at x=0 and x=6. The graph of f(x) also confirms these results.
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The measures of the angles of a triangle are shown in the figure below. Solve for x.
Answer:
x=58
Step-by-step explanation:
Answer:
x=26 degree
Step-by-step explanation:
x+106+48 =180 degree (sum of interior angles of a triangle is 180 degree)
x+154=180
x=180-154
x=26 degree
therefore the value of x is 26 degree.
Please help me! I will mark brainliest for best answer :)
Answer:
r = 5
I just turned it in it was correct
Step-by-step explanation:
please mark brainliest
Answer:
7 = 2 + r
Step-by-step explanation:
So since we know the hanger is balanced, we can determine that r = the amt. of the other side - 2. =>
We can count the amt. of "1" on the side of the hanger with only 1 --> to get 7 "1" which is 7(1) = 7.
The other side with "r" has 2 "1" thus --> 2(1) = 2
So, 7 = 2 + r is our equation and if we were to solve for r, => r = 5
Hope this helps!
15, 16, 17 and 18 the given curve is rotated about the -axis. find the area of the resulting surface.
The formula becomes:
A = 2π∫1^4 sqrt
Rotate the curve y = \(x^{3/27\), 0 ≤ x ≤ 3, about the x-axis.
To find the surface area of the solid generated by rotating the curve y = \(x^3\)/27, 0 ≤ x ≤ 3, about the x-axis, we can use the formula:
A = 2π∫\(a^b\) f(x) √(1 + [f'(x)\(]^2\)) dx
where f(x) is the function defining the curve, and a and b are the limits of integration.
In this case, we have:
f(x) =\(x^{3/27\)
f'(x) = \(x^{2/9\)
So, the formula becomes:
A = 2π∫0^3 (\(x^{3/27\)) √(1 +\([x^{2/9}]^2\)) dx
We can simplify the integrand by noting that:
1 + [\(x^2\)/9\(]^2\) = 1 + \(x^{4/81\) = (\(x^4\) + 81)/81
So, the formula becomes:
A = 2π/81 ∫\(0^3 x^3\) √(\(x^4\) + 81) dx
This integral is not easy to evaluate by hand, so we can use numerical methods or a computer algebra system to obtain an approximate value.
Using a numerical integration tool, we find that:
A ≈ 23.392 square units
Therefore, the surface area of the solid generated by rotating the curve y = x^3/27, 0 ≤ x ≤ 3, about the x-axis is approximately 23.392 square units.
Rotate the curve y = 4 - \(x^2\), 0 ≤ x ≤ 2, about the x-axis.
To find the surface area of the solid generated by rotating the curve y = 4 - x^2, 0 ≤ x ≤ 2, about the x-axis, we can again use the formula:
A = 2π∫\(a^b\) f(x) √(1 + [f'(x)]\(^2\)) dx
In this case, we have:
f(x) = 4 - \(x^2\)
f'(x) = -2x
So, the formula becomes:
A = 2π∫\(0^2\) (4 - \(x^2\)) √(1 + [-2x\(]^2\)) dx
Simplifying the integrand, we get:
A = 2π∫0^2 (4 - x^2) √(1 + 4x^2) dx
This integral is also not easy to evaluate by hand, so we can use numerical methods or a computer algebra system to obtain an approximate value.
Using a numerical integration tool, we find that:
A ≈ 60.346 square units
Therefore, the surface area of the solid generated by rotating the curve y = 4 - \(x^2\), 0 ≤ x ≤ 2, about the x-axis is approximately 60.346 square units.
Rotate the curve y = sqrt(x), 1 ≤ x ≤ 4, about the x-axis.
To find the surface area of the solid generated by rotating the curve y = sqrt(x), 1 ≤ x ≤ 4, about the x-axis, we can again use the formula:
A = 2π∫\(a^b\) f(x) √(1 + [f'(x)\(]^2\)) dx
In this case, we have:
f(x) = sqrt(x)
f'(x) = 1/(2sqrt(x))
So, the formula becomes:
A = 2π∫\(1^4\) sqrt
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IS
√21 A
RATIONAL
NUMBER? PLEASE
EXPLAIN
CLEARLY WHY IT
EITHER IS OR
ISN'T.
Answer:
√21 is irrational
Step-by-step explanation:
√21 = 4.58257569495584 which is a non-terminating decimal.
Therefore √21 is irrational.
Answer: No, it cannot be a rational number.
Step-by-step explanation:
A rational number is defined to be a whole number (ex. 1, 2, 3) or can be decimals that continuously repeat the digits after the point. In the case of a square root, they can be rational--but this only applies to perfect squares: √100, √64, √16, etc, which would give an outcome of a whole number. Therefore, √21 is not a rational number, as the decimal value is 4.57257, and is not continuous (ex. 3.666666).
a rectangular poster is to contain 392 square inches of print. the margins at the top and bottom of the poster are to be 2 inches, and the margins on the left and right are to be 1 inch. what should the dimensions of the poster be (in inches) so that the least amount of poster is used? (enter your answers as a comma-separated list.)
The dimensions of the poster with an area of 392 square inches is equal to 14 inches and 28 inches.
Area of rectangular poster to print = 392 square inches
Let us assume that dimensions of the posters are,
Width of the poster is x inches and the length of the poster is y inches.
Area of the rectangular poster is,
xy = 392
Add 2 inches to the top and bottom margins for a total of 4 inches
And 1 inch to the left and right margins for a total of 2 inches.
Total area of the poster including the margins using the following equation,
Total area = (x + 2) × (y + 4)
Minimize the total area of the poster while still satisfying the area constraint.
Use the first equation to solve for one variable
And substitute it into the second equation,
y = 392/x
Total area = (x + 2) × (392/x + 4)
⇒ Total area = 4x + 392 +784/x + 8
⇒Total area = 4x + 400 +784/x
Minimize the total area, take the derivative of this expression with respect to x and set it equal to 0,
d/dx (4x + 400 +784/x ) = 0
⇒ 4 + 0 - 784/x² = 0
⇒ x² = 784 /4
⇒ x = 14
Substituting this value of x back into the equation for y, we get,
y = 392/14
= 28
Therefore, the dimensions of the poster should be 14 inches by 28 inches.
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It costs $17.60 for a pack of 4 padlocks. Find the unit price in dollars per padlock. If necessary, round your answer to the nearest cent.
Answer:
4=$17.60
1=$17.60/4
1=$4.40
Step-by-step explanation:
Is the point 4. 0 m directly in front of one of the speakers, perpendicular to the plane of the speakers, a point of maximum constructive interference, perfect destructive interference, or something in between?.
The point at coordinates (4, 0) meters, directly in front of one of the speakers and perpendicular to the plane of the speakers, will experience maximum constructive interference.
In the scenario of two speakers, when a point is located directly in front of one of the speakers and perpendicular to the plane of the speakers, it is in what is known as the "forward direction". This means that the sound waves from both speakers are in phase at that point, leading to constructive interference.
Constructive interference occurs when the peaks of two sound waves align, resulting in a combined wave with a higher amplitude. Since the point is equidistant from the two speakers and directly in front of one of them, the sound waves from both speakers will reach the point in phase, reinforcing each other and producing maximum constructive interference.
As a result, at the point (4, 0) meters, there will be an increased sound intensity due to the constructive interference of the sound waves from the two speakers.
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A lawn care company sells grass seed by the pound. There is one price per pound up to 5 pounds and a lower price per pound for each pound over 5 pounds. The expression 3(x-5 )+25 gives the total cost in dollars of x pounds of seed when a customer buys more than 5 pounds.
Answer:
I think its C
Step-by-step explanation:
6. Ria purchased a car for
$14,775. Sales tax in her
county is 6.8%.
a. What is the total price of
the car including tax?
b. If she puts $2,100 down,
how much will she be
financing?
c. What will her monthly
payment be if the term of
the loan is 72 months with
an APR of 3.5%?
9514 1404 393
Answer:
a) $15,779.70
b) $13,679.70
c) $210.92
Step-by-step explanation:
a) When tax is added, the total cost is ...
total = price × (1 +tax rate)
total = $14,775 × 1.068 = $15,779.70
__
b) The amount financed is the difference between the total cost and the down payment.
financed = total - down35
financed = $15,779.70 -2100 = $13,679.70
__
c) The monthly payment is found using the amortization formula. It can also be found using any of a number of financial calculators, spreadsheets, or apps.
A = P(r/12)/(1 -(1 +r/12)^-n) . . . . annual rate r, n monthly payments, principal P
A = $13,679.70(0.035/12)/(1 -(1 +0.035/12)^-72) ≈ $210.92
Please please please help!
For AABC, AB = 6 and BC = 17. Which of the following is a possible length for AC?
Possible length of the third side of the Triangle must be between 11 and 23.
What is the Range of third side of Triangle ?As the third side of the triangle is between the sum of the sides and difference of the sides excluding both the numbers.
As triangle consist of three sides and it should must be in between two extreme values.
As by the property of Triangle
Third side should be less than sum of the sides and,
it should be greater than difference of the sides.
Sum of the sides = AB + BC = 6 + 17 = 23
Difference of the sides = 17 - 6 = 11
Then the third side will be between 11 and 23 excluding 11 and 23.
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A right rectangular prism has a volume of 6x^3 - 3x^2 - 45x.
a. What are expressions for the length, width, and height?
b. What is the least possible integer value of x for the rectangular solid to exist? Explain
(a) The expressions for the length, width, and height can be 3x, (2x + 5), and (x - 3).
(b) The least possible integer value of x for the rectangular solid to exist is 4.
a. To express the length, width, and height of the right rectangular prism in terms of x, we can factor the volume expression, 6x³ - 3x² - 45x.
Factoring out the greatest common factor, 3x:
3x(2x² - x - 15)
Now, factor the quadratic expression:
3x(2x² - x - 15)
To factor the quadratic expression further, find two numbers whose product equals the constant term (-15) and whose sum equals the coefficient of the linear term (-1). These two numbers are -5 and 3.
3x(2x + 5)(x - 3)
Thus, the expressions for the length, width, and height can be 3x, (2x + 5), and (x - 3)
b. For the rectangular solid to exist, all dimensions (length, width, and height) must be positive. Let's examine the constraints on x for each dimension:
1. 3x > 0
2. 2x + 5 > 0 → x > -5/2
3. x - 3 > 0 → x > 3
Since x must satisfy all three inequalities, the least possible integer value of x for the rectangular solid to exist is x = 4.
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please help me, I'm stuck on the second one. Also for i) i got angle ABD because angles in a semicircle measures 90 degree and OAX because the angle between the tangent and a radius is 90 degrees
Answer:
i)
DA is diameter and AX is tangent to circleYour answer is correct
m∠ABD = 90°, m∠DAX = 90°ii)
Given m∠BAX = 42° and ∠DAB is complementary with BAX ⇒
m∠DAB = 90° - 42° = 48°DC = BC ⇒ intercepted arcs are same ⇒
∠CDB = ∠BDCmDC = mCB ⇒ mDCB = ∠DAB = 48° ⇒
m∠CDB = m∠BDC = 1/2*48 = 24°iii)
∠CBA
∠CBA is supplementary with ∠ADC as opposite angles of cyclic quadrilateral (∠ADB = ∠BAX = 42°)
m∠ADC = m∠ADB + m∠CDB = 42° + 24° = 68°m∠CBA = 180° - m∠ADC = 180° - 68° = 112°∠BAE
EA║CB and AB is transversal ⇒ CBA and BAE are supplementary angles:
m∠BAE = 180° - 112° = 68°∠DCE
∠DCE = ∠DCB - ∠BCEm∠DCB = 180° - m∠DAB = 180° - 48° = 132°m∠BCE = 180° - m∠BAE = 180° - 68° = 112°∠DCE = 132° - 112° = 20°If LADC measures 61°, what does ZABC measure?
А
С
B
D
Answer:
122
Step-by-step explanation:
61 x 2 = 122
CAN YHU MARK ME BRAINLISTThe measurement of angle ABC is 122°.
What are the properties of the circle?The circumference, which is the distance around the object, the diameter, which is the length of a circle measured from one end to the other and passing through its center, and the radius, which is equal to half of the diameter, are the three key characteristics.
The general coordinate equation of a circle is:
(x-h)² + (y - k)² = r²
Where,(h, k) is the center of a circle, "r" is the radius of the circle.
Given, a figure of the circle that gives the center of the circle is B.
Since, the Centre angle is twice the size of the angle of the circumference, made by the same arc.
Since both angles, ∠ABC and ∠ADC are made by the same arc AC.
Thus,
The angle made on the center = 2 * the angle made on the circumference,
The angle made on centre = 2 * 61
The angle made on center = 122°
Therefore, The measurement of angle ABC is 122°.
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explain why the other expressions do not have like terms A. 14m + mn B. 2y + 2x + 4 C. -3/4m + 8m + m D. 4 - 3p E. 5.75t + 7.75t - t F. 8xy - 6xy
What is 2 3/4as an improper fraction
help ASAP please! ill mark brainliest!
Answer:
8!
Step-by-step explanation:
Answer) 8!
Explanation) i dont have one :')
HELP ME PLEASE !!!!!!
C(x)= 50.41
for the minute multiplying 9×50= 400 minute
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
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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I NEED THE ANSWER RIGHT NOWWWW
Hailey is shopping at a department store during a 20% off everything sale. She also has a coupon for $5.00 off the sale amount. Hailey wants to keep her total under $65.00 before tax, so she creates this inequality:
0.80x − $5.00 ≤ $65.00.
Which inequality represents all possible solutions for x?
A. x ≤ $75.00
B. x ≤ $76.25
C. x ≤ $86.25
D. x ≤ $87.50
Answer:
All of them would be under $65
Answer:
D
Step-by-step explanation:
Create the following vectors in R using seq() and rep(). (a) 1;1:5;2;2:5;:::;12 (b) 1;8;27;64;:::;1000 Question 3. Solve the next equation. ∑t=110(1+0.031)t
To create the vectors using `seq()` and `rep()` in R:
(a) To create the vector `1;1:5;2;2:5;...;12`, we can use `seq()` and `rep()`. Here is the code:
```
vector_a <- c(1, rep(seq(1, 5), each = 2), seq(2, 5), 12)
```
- `seq(1, 5)` generates a sequence from 1 to 5.
- `rep(seq(1, 5), each = 2)` repeats each element of the sequence twice.
- `seq(2, 5)` generates a sequence from 2 to 5.
- `c()` combines all the elements into a vector.
- The resulting vector will be `1;1;2;2;3;3;4;4;5;5;2;3;4;5;12`.
The vector `1;1:5;2;2:5;...;12` can be created using `seq()` and `rep()` in R.
(b) To create the vector `1;8;27;64;...;1000`, we can use `seq()` and exponentiation (`^`). Here is the code:
```
vector_b <- seq(1, 1000) ^ 3
```
- `seq(1, 1000)` generates a sequence from 1 to 1000.
- `^ 3` raises each element of the sequence to the power of 3.
- The resulting vector will be `1;8;27;64;...;1000`, as each number is cubed.
The vector `1;8;27;64;...;1000` can be created using `seq()` and exponentiation (`^`) in R.
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slugger got a hit 2 out of every 3 times he went to bat if slugger has gone to batb 3 6 times so far this season how many hits has he had
If Slugger has gone to bat 3–6 times so far this season, he has had 24 hits so far this season.
Use the information given about Slugger's batting average. It is stated that he gets a hit 2 out of every 3 times he goes to bat. This means that his batting average is 0.666 or 66.6%.
Now, if we know that Slugger has gone to bat 36 times so far this season, we can use his batting average to calculate the number of hits he has had. To do this, we can use the following formula:
Number of hits = Batting average x Number of times at bat
Plugging in the numbers we have:
Number of hits = 0.666 x 36
Number of hits = 23.976
Since we can't have a partial hit, we need to round this number to the nearest whole number. Therefore, Slugger has had 24 hits so far this season.
It's important to note that Slugger's batting average is calculated based on the number of official at-bats he has. Official at-bats exclude walks, sacrifices, and other situations where Slugger doesn't actually take a swing at the ball. So, if Slugger had any non-official at-bats, we would need to exclude those from our calculation of his batting average and the number of hits he has had.
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What is the distance from Point A to Point B? Round your answer to the nearest tenth if necessary.
(Hint: sketch a right triangle and use the Pythagorean theorem.)
Answer:
the ans is 6.4
Step-by-step explanation:
using the distance formula
d^2= (x2-x1)^2 + (y2-y1)^2
d^2= (8-4)^2 + (8-3)^2
d^2= (4)^2 + (5)^2
d^2= 16+ 25
d^2= 41
d= sqrt of 41*
d= 6.4units
Eff’ mom ak him to water the gra before he leave at 9:50 a. M. For wim practice. There are five location that require different prinkler etting, and each location require 25 minute of water. Jeff aume it will take him no more than 2 minute to change the prinkler, which mut be done for 4 location. What i the latet time that Jeff can tart watering and till be ready to leave for wim practice at 9:50 a. M. ?
Jeff needs to start watering at 8:57 a.m. to be ready to leave for swim practice at 9:50 a.m.
Let's start by calculating the total watering time as follows -
5 locations * 25 minutes each = 125 minutes of watering time
4 locations * 2 minutes each for changing the sprinkler = 8 minutes for changing the sprinkler.
Hence, total time = 125 minutes + 8 minutes = 133 minutes
So, Jeff needs 133 minutes for watering the garden. The latest time he should start is 9:50 a.m. - 133 minutes = 9:50 a.m. - 2 hrs 13 minutes = 8:57 a.m.
Therefore, Jeff needs to start watering around 8:57 a.m. to be ready to leave for swim practice at 9:50 a.m.
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100 Points!!!!
Triangle DEF is dilated to form triangle D'E'F'. The length of side D'E' measures 6 units.
Which best describes the measure of angle D'?
A: 120 Degrees.
B: 60 Degrees.
C: 70 Degrees.
D: 30 Degrees.
Answer:
It will be the same measure as angle D in the original triangle.
Step-by-step explanation:
Tim earns $10 per hour. Tim works 176 hours per month.
Answer:
he works 17.6 hours
Step-by-step explanation:
Answer:
he gets 1760$ a month
Step-by-step explanation:
176 multiplied by 10
:)
A wave has a time period of 0.2 s Calculate the frequency of the wave.
Answer:
\(\huge\boxed{f = 5\ Hz}\)
Step-by-step explanation:
Given:
Time period = T = 0.2 sec
Required:
Frequency = f = ?
Formula:
f = 1/T
Solution:
f = 1/0.2
f = 5 Hertz
Answer:
\( \boxed{\sf Frequency \ (f) \ of \ the \ wave = 5 \ Hz} \)
Given:
Time Period (T) = 0.2 s
To Find:
Frequency (f) of the wave
Step-by-step explanation:
\( \sf Frequency (f) = \frac{1}{Time Period (T)} \)
\( \sf f = \frac{1}{0.2} \)
\( \sf f = \frac{1}{0.2} \times \frac{10}{10} \)
\( \sf f = \frac{10}{2} \)
\( \sf f = \frac{ \cancel{2} \times 5}{ \cancel{2}} \)
\( \sf f = 5 \: Hz\)
In a certain chemical, the ratio of zinc to copper is 3 to 14. A jar of the chemical contains 630 grams of copper. How many grams of zinc does it contain?
Answer:
135 grams of Zinc
Step-by-step explanation:
zinc:copper
3:14
3/14=x/630
x=135
While riding a hot air balloon over cappadocia, leo spots a house at an angle of of depression of 27 degrees and on a bearing of 210 degrees. keeping the same altitude, the hot air balloon flies 1450m eastward and leo can still see the house on a bearing of 245 degrees. at what height is the hot air balloon flying
The hot air balloon is flying at a height of approximately 949 meters.
To find the height at which the hot air balloon is flying, we can use trigonometry.
Let's denote the height of the hot air balloon as 'h'.
From the information given, we know that the angle of depression is 27 degrees and the bearing of the house is 210 degrees.
Using trigonometry, we can say that tan(27) = h/x, where x is the horizontal distance from the balloon to the house.
Similarly, after the balloon flies 1450m eastward, the bearing of the house becomes 245 degrees.
Using the same logic, tan(27) = h/(x + 1450).
By equating these two equations, we can solve for 'h'.
So, tan(27) = h/x = h/(x + 1450).
We can solve this equation to find 'h'.
By substituting the values of tan(27) and solving the equation, we find that the hot air balloon is flying at a height of approximately 949 meters.
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