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pychu [463]
3 years ago
9

What is the actual length of the flower garden

Mathematics
1 answer:
MrMuchimi3 years ago
4 0
Width= wlength = l=w+5 Area = l * w  104  =(w+5) * w w2 +5w -104 =0 (w+13)(w-8)=0w=13 and w=8so width =8length=13
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There are two college entrance exams that are often taken by students, Exam A and Exam B. The composite score on Exam A is appro
elena55 [62]

Answer:

B.The score on Exam A is better, because the percentile for the Exam A score is higher.

Step-by-step explanation:

Problems of normally distributed samples can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

Two exams. The exam that you did score better is the one in which you had a higher zscore.

The composite score on Exam A is approximately normally distributed with mean 20.1 and standard deviation 5.1.

This means that \mu = 20.1, \sigma = 5.1.

You scored 24 on Exam A. So

Z = \frac{X - \mu}{\sigma}

Z = \frac{24 - 20.1}{5.1}

Z = 0.76

The composite score on Exam B is approximately normally distributed with mean 1031 and standard deviation 215.

This means that \mu = 1031, \sigma = 215.

You scored 1167 on Exam B, s:

Z = \frac{X - \mu}{\sigma}

Z = \frac{1167 - 1031}{215}

Z = 0.632

You had a better Z-score on exam A, so you did better on that exam.

The correct answer is:

B.The score on Exam A is better, because the percentile for the Exam A score is higher.

3 0
3 years ago
What 2 numbers multiplied comes to 149
wel

Answer:

12.20655562 or 12.2

Step-by-step explanation:

Just square  149 \sqrt{149\\}

That gives you 12.20655562

Round it to 12.2

4 0
3 years ago
A video streaming company has two monthly plans to choose from: Plan A
bearhunter [10]

Answer:

<em>Plan A</em>

Step-by-step explanation:

Plan A -

$7 + 2.50(5)

$7 + $12.50

Plan A = $19.50

Plan B-

$4(5) = $20

Plan A is the cheapest, therefore it is the best plan.

Hope this helped! :)

6 0
3 years ago
If r = 6 units and h = 13 units, what is the volume of the cylinder
Andrews [41]

Answer:

v=1460.26536188 units^3

Step-by-step explanation:

Volume for a cylinder is:

V=πr^2h

Substitute 6 in for r and 13 in for h

V=π(6^2)(13)

V=π(36)(13)

V=π468

v=1460.26536188 units^3

Hope this helps! :)

6 0
3 years ago
Solve the following equations putting them in slope intercept form. Then
asambeis [7]

Answer:

1. slope  is -1 and y intercept is 2

3. slope is -2 and y intercept is -4

2. slope is -4 and y intercept is 2

4. this is not a line - it is a parabola

Step-by-step explanation:

1. -4y = 4x -8

y = -x + 2

3. 4y = -8x -16

y = -2x - 4

2. y = -4x + 2

4. y - 14 = -3x^2 -16x

y = 3x^2 - 16x + 4

7 0
3 years ago
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