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Marizza181 [45]
3 years ago
12

7)) Brainliest and 10+ points!

Mathematics
2 answers:
strojnjashka [21]3 years ago
4 0
Divide by 2, then subtract 4
lara [203]3 years ago
3 0

Answer:

Divide by 2

Then subtract 4

Step-by-step explanation:

Let y = 2(x+4)

Exchange x and y

x = 2(y+4)

We want to solve for y

Divide each side by 2

x/2  = y+4

Then subtract 4 from each side

x/2 -4 =y

The inverse is x/2 -4

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Zach is 3 years older than twice his sister Maya’s age.
Flauer [41]
The answer is z=2m+3 so the first one is right
8 0
3 years ago
Read 2 more answers
A researcher selects two samples of equal size and computes a mean difference of 1.0 between the two sample means. If the pooled
s344n2d4d5 [400]

Answer:

The Cohen's D is given by this formula:

D = \frac{\bar X_A -\bar X_B}{s_p}

Where s_p represent the deviation pooled and we know from the problem that:

s^2_p = 4 represent the pooled variance

So then the pooled deviation would be:

s_p = \sqrt{4}= 2

And the difference of the two samples is \bar X_a -\bar X_b = 1, and replacing we got:

D = \frac{1}{2}= 0.5

And since the value for D obtained is 0.5 we can consider this as a medium effect.  

Step-by-step explanation:

Previous concepts

Cohen’s D is a an statistical measure in order to analyze effect size for a given condition compared to other. For example can be used if we can check if one method A has a better effect than another method B in a specific situation.

Solution to the problem

The Cohen's D is given by this formula:

D = \frac{\bar X_A -\bar X_B}{s_p}

Where s_p represent the deviation pooled and we know from the problem that:

s^2_p = 4 represent the pooled variance

So then the pooled deviation would be:

s_p = \sqrt{4}= 2

And the difference of the two samples is \bar X_a -\bar X_b = 1, and replacing we got:

D = \frac{1}{2}= 0.5

And since the value for D obtained is 0.5 we can consider this as a medium effect.  

7 0
3 years ago
Write an equation for 14 groups of 16
ZanzabumX [31]
14 times 16=84+140=224
4 0
3 years ago
Help please I need to Simplify this.
Vikentia [17]
0.0625 is the answer
7 0
3 years ago
Find the factors of function f, and use them to complete this statement.
Crank

Answer:

f(x)= 2x^4 - x^3=24 -18x^2 + 9x= 45      45-24=21

Step-by-step explanation:

just multipkye that

4 0
3 years ago
Read 2 more answers
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