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Bad White [126]
2 years ago
5

My last math question! I need help. I'm not good at math so I'm relying on who ever do this to do so correctly!!!!

Mathematics
1 answer:
jonny [76]2 years ago
8 0

Answer:

c

Step-by-step explanation:

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What is the correct answer?
babunello [35]

Answer:

Image B shows a reflection.

6 0
3 years ago
Read 2 more answers
What is the inverse of g(x) =<br> X +8
gayaneshka [121]

Answer:

The inverse is x-8

Step-by-step explanation:

g(x) = x+8

y = x+8

To find the inverse, exchange x and y

x = y+8

Solve for y

Subtract 8 from each side

x-8 = y+8-8

x-8 = y

The inverse is x-8

6 0
3 years ago
The mean number of children among a sample of 15 low-income households is 2.8. The mean number of children among a sample of 19
gtnhenbr [62]

Answer:

Step-by-step explanation:

Let's put the data as below:

n1=15    x1=2.8      s1=1.6       and s1²=2.56

n2=19   x2=2.4     s2=1.7        and s2²=2.89

alpha= 0.05

To test the hypothesis:

H0= There is no sufficient evidence that low income household have fewer children

H1=There is sufficient evidence that low income household have fewer children

Assume that population variances are equal.

the t-static for two samples,

t=\frac{x1-x2}{Sp\sqrt{\frac{1}{n1}-\frac{1}{n2} \\} } } ~t with min (n1-1,n2-1)df

The pooled variance estimate Sp equals:

Sp^{2}=\frac{(n1-1)s1^{2}+(n2-1)s2^{2}  }{n1+n2-2}

Sp²=2.7456

Sp=1.65699

Degrees of freedom=n1+n2-2=32

Under null hypothesis:

tcal=\frac{|2.8 - 2.4|}{1.6599\sqrt{\frac{1}{15}+\frac{1}{19}  } }

tcal=0.6989

The critical value ttab=2.0369 for alpha=0.05

So we reject our null hypothesis H0

So there is sufficient evidence that low income households have fewer children than high income households

6 0
3 years ago
You're completing an online game. You already did 105 levels and the same says you have completed 8% of it. How many levels are
Ber [7]
To figure it out do the equation:

8/100 = 105/a

a = total levels
7 0
3 years ago
Hello have some points
Len [333]

Answer:

thanks

Step-by-step explanation:

3 0
3 years ago
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