All categories

2 years ago

MATH TEST PLEASE HELP

Mathematics

2 answers:

DIA [1.3K]2 years ago

5 0

Answer:

Step-by-step explanation:

PIT_PIT [208]2 years ago

4 0

Answer:

B) False because r is closer to 1

Step-by-step explanation:

A perfect negative correlation is seen as r=-1, since the answer r=0.997 is positive and very close to 1, this is almost a perfect POSITIVE correlation. Since the question asks about a negative correlation it is false, and the reasoning is because it is closer to 1 than 0. If it was closer to 0 than it would be a "low" correlation but not negative. The answer is B.

You might be interested in

If an object is rotated clockwise 130° around a center and then counterclockwise 75° around the same center, what is the angle b

Keith_Richards [23]

That would be 130 - 75 = 55 degrees answer

6 0

3 years ago

Which of the following is 6x²/27x simplified?

qaws [65]

Hi, The Answer is:

2x/9

Steps:

Simpilfy the expression:

6x/27

Then reduce the fraction with 3:

2x/9

That's your answer have a good day.

3 0

3 years ago

Read 2 more answers

Find y if the distance between

Helen [10]

Answer:

y = 6

Step-by-step explanation:

$\sqrt{(10-3)^2 + (y+18)^2} = 25 \\ 49 + y^2 + 324 + 36y = 625 \\$

y^2 + 36y - 252 = 0

(y-6)(y+42) = 0

y = 6 (accettable)

y = -42 (not accettable)

5 0

2 years ago

How do you find the r?

astra-53 [7]

It's a right triangle. Use the pythagorean theorem. 36^2+r^2=(r+12)^2. r=48.

5 0

2 years ago

Does anyone know this??

STALIN [3.7K]

Hi there! The answer is C.

Explanation:
We have the following equation:

$\frac{8}{15} = \frac{x}{6}$
To solve this type of equation (with an x in the denominator of a fraction) we must cross-multiply the numerator and the denominator.

$15 \times x = 8 \times 6$
Multiply

$15x = 40$
Divide both sides by 15.

$x = \frac{40}{15} = 2 \frac{2}{3}$
~ Hope this helps you!

5 0

2 years ago

Read 2 more answers