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2 years ago

1-07 What is the length of the marked portion of each line segment? Copy the

Mathematics

1 answer:

VikaD [51]2 years ago

5 0

Answer:

A. 25 B. 45 C. 30

Step-by-step explanation:

75 ÷ 3 = 25

25 × 1 = 25

75 ÷ 5 = 15

15 × 3 = 45

50 ÷ 5 = 10

10 × 3 = 30

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How to find the opposite side of a triangle?

aivan3 [116]

Answer:

Pythagoros Therom

Step-by-step explanation:

The pythagoros therom will help you find any side of a triangle as long as you already know 2 of the sides the equation is a^2+b^2=c^2 and c is the hypotenuse(the longest leg) and a and b are the other two legs. You might wanna learn this thouroghly but it is very easy to learn trust me.

6 0

2 years ago

Suppose that the mean time that visitors stay at a museum is 94.2 minutes with a standard deviation of 15.5 minutes. The standar

Maurinko [17]

Answer:

$94.2 -0.994*3.1 = 91.1186$

$94.2 +0.994*3.1 = 97.2814$

And the 68% confidence interval is given by (91.1186, 97.2814)

Step-by-step explanation:

For this case we know that mean time that visitors stay at a museum is given by:

$\bar X = 94.2$

The standard deviation is given by:

$s= 15.5$

And the standard error is given by:

$SE = \frac{s}{\sqrt{n}} =3.1$

And we want to interval captures 68% of the means for random samples of 25 scores and for this case the critical value can be founded like this using the normal standard distribution or excel:

$z_{\alpha/2}= \pm 0.994$

We can find the interval like this:

$\bar X \pm ME$

And replacing we got:

$94.2 -0.994*3.1 = 91.1186$

$94.2 +0.994*3.1 = 97.2814$

And the 68% confidence interval is given by (91.1186, 97.2814)

7 0

2 years ago

Nate's savings account for the business had $12.10 more at the end of the year than the $252 it had at the begining of the year.

Ulleksa [173]

4.58% is the answer. You need to add the $12.10 to $252 to get the total. 252x100%=2500÷264.10 then subtract the answer from 100.

8 0

3 years ago

The graph of a linear system is shown. What is the solution the linear system?

Mkey [24]

Answer:

y=3x-1 and y=3x+1

Step-by-step explanation:

y=mx+b form

m stands for the slope which is rise over run.

b stands for the y intercept. where the line intersects with the y axis.

7 0

2 years ago

Determine the measure of an angle (in radians) that cuts off an arc length of 6.4 inches in a circle with a 6.4 inch radius.

serg [7]

1 radian
because s= r × angle measurement in radian
we have s= arc , r = radian so we got the value

5 0

2 years ago