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3 years ago

10

A _____________ exists between two variables when the values of one variable are somehow associated with the values of the other

variable.
a. difference
b. causation
c. inference
d. correlation

1 answer:

zysi [14]3 years ago

4 0

Answer:

Step-by-step explanation:

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If there are 9 girls and 11 boys in a class, what percentage of the class are girls

viva [34]

1. Find the total number of class members
9 + 11 = 20

2. Find 9 as a percentage of 20
9 / 20 = 0.45
0.45 x 100 = 45%

<u>45% of the class are girls.</u>

6 0

3 years ago

A river is 212 mile long. What is the length of the river on a map, if the scale is 1 inch : 50 miles?

RoseWind [281]

Answer:

4.24 inches

Step-by-step explanation:

1 inch / 50 miles = x / 212 miles Cross multiply

1 inch * 212 miles = 50 miles * x Divide by 50 miles

1 inch * 212 miles / 50 miles = x

x = 4.24 inches.

How much is 0.24 of an inch?

0.24 * 50 = 12

So 0.24 inches represents 12 miles.

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3 years ago

Nori had 2 1/2 bags of apples. He used 1 5/12 bags of apples to make pies. How

Georgia [21]

Answer:

1 21/250

Step-by-step explanation:

1 5/12 in decimal form is 1.416 so you take 2 1/2 bags of apples and make it a decimal, is 2.5 so you subtract them and get 1.084 and that in its most simplified feaction is 271/250 and in standard form is 1 21/250 in simplified form so that is how many bags of apple he will have left. Hope this helps!

Teo Gacanica

7 0

3 years ago

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the length.of a hypotenuse of a right triangle is 32 inches and the length of one of the lrgs is 18 inches. what is the length,

Elza [17]

Let: hypotenuse = a , known leg = b , unknown leg = c
According to Pythagoras' Theorem: $a^{2} = b^{2} + c^{2}$
   $c^{2} = a^{2} - b^{2}$
   $c^{2} = (32 inches)^{2} - (18 inches)^{2}$
c = $\sqrt{(32 inches)^{2} - (18 inches)^{2}}$
c = 3.74 inches

∴ the length of the hypotenuse to 1d.p. ≈ 3.74 inches

6 0

3 years ago

In the diagram, the measure of angle 3 is 89°, and the measure of angle 6 is 88°.

Mumz [18]

Alright, lets get started.

Angle 3 and angle 4 are adjacent angles because they are having the common side.

They both are on straight line, so, their addition will be 180°.

Suppose angle 4 is x , hence

angle 4 + angle 3 = 180

$x + 89 = 180$

Subtracting 89 from both sides

$x + 89 - 89 = 180 - 89$

$x = 91$ °

Hence angle 4 is 91°. : Answer

Hope it will help :)

5 0

3 years ago

Read 2 more answers