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slega [8]
3 years ago
9

Need answer right now!!

Mathematics
1 answer:
dsp733 years ago
6 0

Answer:

20

Step-by-step explanation:

All you do is find an exponent that adds up to 24

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Which fractions are equal to −9/36?
STatiana [176]

Answer:

1/4

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Find the slope of the line that passes through (2, 12) and (6, 7).
Elodia [21]

Answer:

m=\frac{1}{4}

Step-by-step explanation:

Gladly!

To find the slope, we need to find the change between <em>point a</em> and <em>point b</em>

With the difference between x1 and x2 being 4, and the difference between y1 and y2 being 1, we get a fraction that looks like this,

\frac{1}{4}

This right here is the slope of the line. Hope this helps!

8 0
3 years ago
Can you turn this sentence into an equation please? Three times twenty one more than a number is twelve. What is that number?
Zanzabum
X + 3 * 21 = 12
x + 63 = 12
x = 12-63
x = -51
The wording was a little odd, but I hope this is what you’re looking for!
3 0
4 years ago
Read 2 more answers
Triangle A, B, C, is shown. Angle C, A, B is 70 degrees. Angle A, B, C is 70 degrees.
Xelga [282]

Answer:

40°

Step-by-step explanation:

<CAB=70°

<ABC=70°

<ACB+ <CAB+ <ABC=180(sum of angles in a triangle)

<ACB +70+70=180

<ACB+140=180

<ACB=180-140

<ACB=40°

5 0
3 years ago
The value of the coefficient of correlation ( r) a. can never be equal to the value of the coefficient of determination (r2). b.
gulaghasi [49]

Answer:

d. can be equal to the value of the coefficient of determination (r2).

True on the special case when r =1 we have that r^2 = 1

Step-by-step explanation:

We need to remember that the correlation coefficient is a measure to analyze the goodness of fit for a model and is given by:

r=\frac{n(\sum xy)-(\sum x)(\sum y)}{\sqrt{[n\sum x^2 -(\sum x)^2][n\sum y^2 -(\sum y)^2]}}  

The determination coefficient is given by R= r^2

Let's analyze one by one the possible options:

a. can never be equal to the value of the coefficient of determination (r2).

False if r = 1 then r^2 = 1

b. is always larger than the value of the coefficient of determination (r2).

False not always if r= 1 we have that r^2 =1 and we don't satisfy the condition

c. is always smaller than the value of the coefficient of determination (r2).

False again if r =1 then we have r^2 = 1 and we don't satisfy the condition

d. can be equal to the value of the coefficient of determination (r2).

True on the special case when r =1 we have that r^2 = 1

7 0
3 years ago
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