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3 years ago

Which statements correctly describe the association between the variables A and B?

Mathematics

1 answer:

nadya68 [22]3 years ago

7 0

<h2>Answer:</h2>

The statement that correctly describes the association between the variables A and B is:

Negative association.

Linear association.

<h2>Step-by-step explanation:</h2>

Clearly from the scatter plot we could see that with the increase in the value of variable A the second variable i.e. variable B is decreasing.

Hence, the association is negative association.

Also when we will draw the trend line we see that we get a parabolic path such that it best describes the point.

Hence, the association is non-linear.

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Which statement is true?

Dafna1 [17]

The second one is the true statement

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2 years ago

4. Solve the equation for the given variable. For each step. Identity the property used to convert the equation. 22x + 11 = 4x -

Andrei [34K]

Answer:

x=-1

Step-by-step explanation:

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3 years ago

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I need help with these three problems.... please help me????

viva [34]

12. Answer: 2130

<u>Step-by-step explanation:</u>

T = -0.01y + 10.6

9.2 = -0.01y + 10.6

-1.4 = -0.01y

140 = y

"y" represents the number of years after 1990

1990 + 140

= 2130

**************************************************************

13. Answer: -0.0036° per foot

<u>Step-by-step explanation:</u>

Since the relationship is linear, then we can set up the values as x, y coordinates and use the slope formula to find the rate of degrees over feet.

(6562, 63) and (16405, 28)

rate = $\frac{28 - 63}{16405-6562}$

= $\frac{-35}{9843}$

= $\frac{-0.0036}{1}$

**************************************************************

14. Answer: $0.28 per kWh

<u>Step-by-step explanation:</u>

Same reason as #13

(200, 55) and (500, 140)

rate = $\frac{140-55}{500-200}$

= $\frac{85}{300}$

= $\frac{0.28}{1}$

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3 years ago

Help please asap i<br> show step by step !

pychu [463]

Answer:

a = $4\sqrt{3}$

b= 4

Step-by-step explanation:

It's a 30-60-90 triangle based on the given picture. A right triangle too

Use sine, cosine, and tangent to solve for the side.

To find b, you can use sin(30) = b/8 because sin(angle) = opposite/hypotenuse.

OR you can use the rule for 30-60-90 triangle, which is x for short leg, 2x for hypotenuse, and $x\sqrt{3}$ for long leg

So either way, b = 4

To find a, you can use cos(30) = a/8 because cos(angle) = adjacent/hypotenuse.

OR you can use the same rule, 30-60-90 triangle to save time

a will end up = $4\sqrt{3}$

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2 years ago

Write 3.25 x 10^4 as an ordinary number.

MArishka [77]

Answer:

see below

Step-by-step explanation:

i'm guessing u must be from UK.... in the US "standard form" is known as "Scientific Notation"

Write 3.25 x 10^4 as an ordinary number: 32 500

Write 6.04 x 10^-3 as an ordinary number: 0.00604

Write 2 400 000 in standard form : 2.4 x 10^6

Write 0.00147 in standard form: 1.47 X 10^-3

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3 years ago

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