Answer:
2.25 miles
Step-by-step explanation:
If she can walk 3/4 of a mile in 20 minutes you need to multiply 3/4 by 3 because 20 times 3 is 60 and there is 60 minutes in a hour
What is the correct order of steps to solve 8 2(-x-5)=26?
Answer:
82(-x-5)=26
-82x-410=26
-410-26=82x
-436/82=x
x=-218/41
Insert division signs to make a correct equality 4 3 2 8 = 54
Answer:
Step-by-step explanation:
Insert division signs to make a correct equality 4 3 2 8 = 54
432 : 8 = 54
Ms. Ruiz has a piece of fabric that is 3 3/4 yards long. She waves to cut it into 12 equal pieces. How many yards will each piece of fabric be
Answer:
the number of yards be 0.3125
Step-by-step explanation:
The computation of the number of yards will each piece of fabric be is shown below:
Given that
There is \(3 \frac{3}{4}\) yards long i.e. 15 ÷ 4
And, it should be cut into 12 equal pieces
So, the number of yards will each piece of fabric be is
= 15 ÷ 4 ÷ 12 ÷ 1
= 15 ÷ 48
= 0.3125
Hence, the number of yards be 0.3125
Answer:
5/16
Step-by-step explanation:
3 3/4= 13/4
13/4 ÷ 12= 0.3125
0.3125 = 5/16
What is the probability of drawing a 10 or a 6 from a deck of cards ?
PLEASE HELP ASAP!!!!!
Answer: It's the first one
Also could you mark my answer as brainliest? It helps and doesnt hurt
Describe the steps to copy angle CAB∠ C A B.
Answer:
Step-by-step explanation:
Construction: To copy angle CAB.
i. On angle CAB, with center A and any radius; draw an arc to intersect CA at E and AB at F.
ii. Place a divider at EF to copy the angle.
iii. Draw a separate straight line MN of approximate length to AB.
iv. Mark point P on MN. Place the divider with radius EF at P to mark Q.
v. Draw a line LM from M through Q.
vi. Therefore, angle CAB would be equal to angle LMN.
In an ellipse, the ratio of the distance between the foci and the length of the major axis is called:
The ratio of the distance between the foci and the length of the major axis is called eccentricity.
Definitions of dimensions in ellipses
Dimensionally speaking, an ellipse is characterized by three variables:
Length of the major semiaxis (\(a\)).Length of the minor semiaxis (\(b\)).Distance between the foci and the center of the ellipse (\(c\)).And there is the following relationship:
\(c = \sqrt{a^{2}-b^{2}}\) (1)
Another variable that measure how "similar" is an ellipse to a circle is the eccentricity (\(e\)), which is defined by the following formula:
\(e = \frac{c}{a} \), \(0 \ge c \ge 1\) (2)
The greater the eccentricity, the more similar the ellipse to a circle.
Therefore, the ratio of the distance between the foci and the length of the major axis is called eccentricity. \(\blacksquare\)
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the 175 workers at a factory together produce 21,175 items per day what is the unit rate of items per worker
Answer: 121 im pretty sure
Step-by-step explanation: 21175 divided by 175
Solve Dy + Az = B for z
Answer:
B/ADY=Z
Step-by-step explanation:
Just rearrange and divide the variable on each side
(I don’t have much experience with this but it might be wrong but unless you want it in another way I’m glad to edit this answer!)
5. 3x = 6. 40x how many time do I need to multiply thee number for them to be the ame
The equation 3x = 6.4 can be solved for x by dividing both sides of the equation by 3: 3x/3 = 6.4/3; x = 2.13
So, for 3x and 6.4x to be equal, x must be equal to 2.13. This means that you need to multiply the number 6.4 by 2.13 to equal 3. The equation 3x = 6.4 represents the relationship between two variables, x and 3x. We are trying to find the value of x that would make 3x equal to 6.4. To do this, we divide both sides of the equation by 3. Dividing both sides of an equation by the same number does not change the relationship between the variables; it only scales down the variable's value by the same factor.
So, by dividing both sides of the equation by 3, we get:
3x/3 = 6.4/3
x = 2.13
Finally, to make 6.4x equal to 3, we need to divide 6.4 by 2.13: 6.4 / 2.13 = 3. So, we need to multiply 6.4 by 2.13 to equal 3.
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HEEEEELLLLPP
What is the measure of <6
5 ori 5 fac 25 și cu 25 egal 14 și cu 14 egal 100 și cu 100 egal 12
Step-by-step explanation:
sper ca team ajutat
Answer:
∠ 6 = 45°
Step-by-step explanation:
∠ 6 and 45° are vertically opposite angles and are congruent , so
∠ 6 = 45°
let f(x)=-2x-7 and g(x)=-4x+3 find (f°g)(-5)
Answer:
-53
Step-by-step explanation:
f°g = f(g(x)) Remember this because this notation is less confusing for you.
Step 1. Plug g(x) in all values of x in the function f(x).
f(g(x)) = -2(-4x+3) -7
Step 2. Distribute the -2
-2(-4x+3) = 8x -6
f(g(x)) = 8x-6-7
Step 3. Simplify by subtracting -6 - 7
f(g(x)) = 8x-13
Step 4. Plug in -5 for x
8(-5) - 13 = -40 - 13 = -53
Help me please in this question
Answer:Answer
Step-by-step explanation:
For the first part, divide 46.54 by 5.2
46.54/5.2=8.95
$8.95 per pound
For the second part if he buys half as much, its half of 5.2 plus 5.2. Now use similar steps that I used in the first part to solve for your problem.
I got $97.50, but i am not 100% sure if it is correct, so try give it a try.
the monthly utility bills in a city are normally distributed, with a mean of $100 and a standard deviation of $15. Find the probability that a randomly selected utility bill is (a) less than $68, (b) between $81 and $90, and (c) more than $120.
The probability that a randomly selected utility bill is,
a) P(X < 68) ≈ 0.016 or 1.6%
b) P(81 < X < 90) ≈ 0.1476 or 14.76%
c) P(X > 120) ≈ 0.0912 or 9.12%
To find the probability in each case, we can use the standard normal distribution by converting the given values into z-scores.
a) To find the probability that a randomly selected utility bill is less than $68, we need to find P(X < 68). First, we calculate the z-score using the formula z = (x - μ) / σ, where x is the value, μ is the mean, and σ is the standard deviation.
z = (68 - 100) / 15 = -2.1333
Using a standard normal distribution table or a calculator, we can find the corresponding cumulative probability for z = -2.1333, which is approximately 0.016. Therefore, the probability P(X < 68) is approximately 0.016 or 1.6%.
b) To find the probability that a randomly selected utility bill is between $81 and $90, we need to find P(81 < X < 90). We calculate the z-scores for both values:
z1 = (81 - 100) / 15 = -1.2667
z2 = (90 - 100) / 15 = -0.6667
Using the standard normal distribution table or a calculator, we find the cumulative probability for z1 and z2: P(z1) ≈ 0.1038 and P(z2) ≈ 0.2514. Then, we subtract P(z1) from P(z2) to find the probability between the two values:
P(81 < X < 90) ≈ P(z1 < Z < z2) ≈ P(z2) - P(z1) ≈ 0.2514 - 0.1038 ≈ 0.1476 or 14.76%.
c) To find the probability that a randomly selected utility bill is more than $120, we need to find P(X > 120). We calculate the z-score:
z = (120 - 100) / 15 = 1.3333
Using the standard normal distribution table or a calculator, we find the cumulative probability for z = 1.3333, which is approximately 0.9088. Since we want the probability of X to be greater than 120, we subtract this value from 1:
P(X > 120) ≈ 1 - P(z) ≈ 1 - 0.9088 ≈ 0.0912 or 9.12%.
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A single number that estimates the value of an unknown parameter is called a _______ estimate.
Answer:
A single number that estimates the value of an unknown parameter is called a point estimate.
Step-by-step explanation:
Don't see the point (haha) of elaborating
factor the trinomial below. x^2+13x+42
Answer:
(x + 6)(x + 7)
Step-by-step explanation:
To factor the trinomial x^2 + 13x + 42, we need to find two numbers that multiply to 42 and add up to 13.
One way to do this is to list all the pairs of factors of 42 and see which pair adds up to 13:
1, 42 -> 1 + 42 = 43
2, 21 -> 2 + 21 = 23
3, 14 -> 3 + 14 = 17
6, 7 -> 6 + 7 = 13
So the pair of factors that we want is 6 and 7. We can use these numbers to rewrite the middle term of the trinomial:
x^2 + 13x + 42 = x^2 + 6x + 7x + 42
Next, we can group the first two terms and the last two terms:
x^2 + 6x + 7x + 42 = (x^2 + 6x) + (7x + 42)
Now, we can factor out the greatest common factor from each group:
x(x + 6) + 7(x + 6)
Notice that we have a common factor of (x + 6) in both terms. We can factor this out:
(x + 6)(x + 7)
PLZ HELPPPPPPPPPPPPP
Answer:
a, d
Step-by-step explanation:
Por favor
3⋅f(−4)−3⋅g(−2)
Which expression represents the growth of an investment of $8,000 at 7.5% per year for a period of t years? 8000(1.075t) 8000(1.075)t 8000(0.075)t
Answer:
its b
Step-by-step explanation:
because im feeling generous enjoy
Solve the inequality. Write the solution in both interval notation and graphically -3x-1 ≥ 5
Given the inequality;
\(-3x-1\ge5\)First, we add 1 to both sides of the inequality, we have;
\(\begin{gathered} -3x-1+1\ge5+1 \\ -3x\ge6 \end{gathered}\)Thus, we divide both sides of the inequality by -3, then changes the inequality sign. We have;
\(\begin{gathered} -\frac{3x}{3}\leq\frac{6}{-3} \\ x\leq-2 \end{gathered}\)Then, the interval notation of the inequality is;
\((-\infty,-2\rbrack\)The graphical representation is;
I need help on this question, it's confusing me please help me :)
Answer:
C. \(\frac{1}{2}\)
Skills needed: Slope Formula
Step-by-step explanation:1
1) The slope is an important concept in algebra, and is also known as the rate of change, or growth rate.
- When graphing a linear equation, the slope determines how steep the line is. Slope can also be negative.
- To find slope, there is a formula you can use. In order to use the formula, you need to be given 2 coordinate points.
- This formula is not that hard to use, and should be remembered as it is a pretty important formula.
------------------------------------------------------------------------------------------------------------- 2) The formula for slope is:
Given two coordinate pairs: \((x_1, y_1)\) and \((x_2, y_2)\)
The formula is:
---> \(\frac{y_2-y_1}{x_2-x_1}\) also known as \(\frac{\triangle y}{\triangle x}\) (change of y over the change of x)
Let's use this formula for this problem (since we are given two coordinate points)
---> \((-9, 6)\) is the first point, \((-3, 9)\) is the second point
\(-9\) is \(x_1\)\(6 \) is \(y_1\)\(-3\) is \(x_2\)\(9\) is \(y_2\)Let's plug it in below:
\(\frac{y_2-y_1}{x_2-x_1}=\frac{9-6}{-3-(-9)} \)
\(-3-(-9)\) can be made into \(-3+9\) since subtracting by a negative number is the same as adding a positive
\(9-6 = 3\)
\(-3+9=6\)
---> \(\frac{9-6}{-3-(-9)}=\frac{3}{6} = \frac{1}{2}\)
In most simplified form, it should be one-half, which is answer choice C.
do these two triangles have the same slope ?
Answer:
Yes
Step-by-step explanation:
They are both using the same line so yeah
what does a number in parentheses cause the graph to do?
There is no difference between a line and a line segment. True or false 
Answer:
False
Step-by-step explanation:
A line is a simple geometric shape that extends in both the directions, but a line segment has two defined endpoints. So, the answer is false. My mistake.
Answer:
line segment have 2 end points and a line has no end pionts so it just keeps going so False
Step-by-step explanation:
false
Select the correct graph.
Which graph is the graph of function
f(x) =4^x
Answer:
the question on top is right
Step-by-step explanation:
the rectangular garden shown has a width of 50 feet and a length of 45 feet and is surrounded by a paved path with a uniform width of x feet. if the combined area of the garden and the paved path is 2646 square feet, what is the value of x ?
Thus we only take the positive root:x = 27/8 = 3.375Answer: 3.375 feet.
The problem states that a rectangular garden that measures 50 feet wide and 45 feet long is enclosed by a uniform width of x feet paved path. To solve the problem,
we can use the formula of the combined area of the garden and the paved path and equate it to 2646 square feet. The combined area is computed by adding the area of the garden and the area of the paved path.
Garden area:Length of garden = 45 ftWidth of garden = 50 ftArea of garden = Length x Width= 45 x 50= 2250 square feet
Paved path:
If the garden has a uniform width of x feet paved path, then the width of the paved path would be x + 2x + x= 4x. The width is multiplied by 2 because there are two widths surrounding the garden.
Length of paved path = length of garden + 2 (width of paved path)= 45 + 2 (4x)= 8x + 45Width of paved path = width of garden + 2 (width of paved path)= 50 + 2 (4x)= 8x + 50
The area of the paved path is computed by subtracting the area of the garden from the combined area.Area of paved path = Combined area - Garden area2646 square feet
= (8x + 45) (8x + 50) - 2250= 64x² + 760x + 675
We then solve for the value of x by factoring the quadratic equation.2646 square feet = 64x² + 760x + 6752646 - 2646
= 64x² + 760x + 675 - 264664x² + 760x - 1971
= 0(8x - 27) (8x + 73) = 0
The value of x cannot be negative,
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Work out x^2- 2x
when x =4
Answer:
8
Step-by-step explanation:
\(x^2-2x \\x=4\\(4)^2-2(4)\\16-8\\8\)
Andrea is selling scooters. This equation shows how Andrea's revenue () depends on the number of scooters sold (x). y = 4x How much revenue does Andrea get for each scooter?
Answer:
Andrea get for each scooter?
Step-by-step explanation:
what is the anwser to this
The graph of the piecewise function in this problem is given by the image presented at the end of the answer.
How to graph the piecewise function?A piecewise function is a function that has different definitions, based on the input of the function.
The intervals of the piecewise function for this problem are given as follows:
x < 2 -> left of x = 2.x > 5 -> right of x = 5.For the first interval, the function is a constant horizontal line at y = -3.
For the second interval, we have a linear function with a slope of 1, hence two points are given as follows:
(5, -2), as when x = 5, y = 5 - 7 = -2.(7, 0), as when x = 7, y = 7 - 7 = 0.More can be learned about piecewise functions at https://brainly.com/question/19358926
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Shane got an oil change for his car for $35 and sent his receipt, along with a
completed form, to the manufacturer of the oil. He later received a check for
$10 from the manufacturer in the mail. Which type of discount is this?
A. A gift card
B. A sale
C. A rebate
D. A coupon
Answer:
C, rebate
Step-by-step explanation:
Hope this helps!
Answer:
a rebate
Step-by-step explanation:
he bought a product that had a rebate.
Fill out a form, send in receipt from purchase with form and sometimes the bar code from package. In about 4 to 6 weeks you receive rebate.