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elena55 [62]
3 years ago
6

The graph shows Elizabeth’s speed during a 55-minute run. During which time interval did Elizabeth’s speed increase?

Mathematics
1 answer:
gladu [14]3 years ago
5 0

Answer:

0 - 5

Step-by-step explanation:

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There are 37 children in the classroom, each student will get 48 pencils.How many pencils will the teacher have to give out?
givi [52]

Answer:

1,776

Step-by-step explanation:

1. There are <u>37</u> children in the classroom

2. Each student will get <u>48</u> pencils

3. The teacher wants to give 48 pencils evenly to 37 children

4. 48 x 37 = <u>1,776</u>

A: The teacher will have to give out <u>1,776</u> pencils.

6 0
3 years ago
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Nitella [24]
Radius is 3 in and height is 9 in. Volume is 3²×9π=81π=254.34 cu in.
4 0
3 years ago
Read 2 more answers
Sum interior angle on a regular pentagon
Sophie [7]

Answer:

540°

Step-by-step explanation:

Formula: note that n means nr of sides

(n-2)×180°

(5-2)×180°=3×180=540°

Where each angle are 540°÷5=108°

4 0
2 years ago
Write the equation in slope-intercept form that contains the following point and is perpendicular to the given line
Len [333]

Answer:

y = 1/4 x -3

Step-by-step explanation:

y = -4x + 3;

the slope of this equation is -4

we want the slope perpendicular to this

take the negative reciprocal

- (-1/4) = 1/4

so the slope of our line will be 1/4

we have the slope and a point so we can use point slope form

y-y1 = m (x-x1)

y--2 = 1/4(x-4)

y+2 = 1/4 (x-4)

we need to change it to slope intercept form (y=mx+b)

distribute

y+2 = 1/4 x -1/4*4

y+2 = 1/4x -1

subtract 2 from each side

y +2-2 = 1/4 x -1-2

y = 1/4 x -3

the slope is 1/4 and the y intercept is -3

8 0
3 years ago
Suppose we are testing the null hypothesis H 0 mu=20 and the alternative H iu =20 , normal population with sigma=6 A random samp
cupoosta [38]

Answer:

The value of the test statistic is z = -1.5

Step-by-step explanation:

The formula for the test statistic is:

z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}

In which X is the statistic, \mu is the mean, \sigma is the standard deviation and n is the number of observations.

In this problem, we have that:

\mu = 20, X = 17, \sigma = 6, n = 9

So

z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}

z = \frac{17 - 20}{\frac{6}{\sqrt{3}}}

z = -1.5

The value of the test statistic is z = -1.5

8 0
4 years ago
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