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Lady_Fox [76]
3 years ago
10

This one is extremely confusing I’ve worked it out 6 times and still no answer can somebody plz help

Mathematics
2 answers:
vivado [14]3 years ago
6 0
It should be A
Angle b=angle g
6x+8=4x+12
2x=4
Yakvenalex [24]3 years ago
4 0

Answer:

The answer is A) 2

Step-by-step explanation:

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Perform the indicated operation and write the result in the form a + bt.<br> (4 +9t)(7 - 4t)
bulgar [2K]
The answer is 64+47i
7 0
3 years ago
A digital camcorder repair service has set a goal not to exceed an average of 5 working days from the time the unit is brought i
garri49 [273]

Answer:

The degrees of freedom first given by:  

df=n-1=12-1=11  

Then we can find the critical value taking in count the degrees of freedom and the alternative hypothesis and then we need to find a critical value who accumulates 0.05 of the area in the right tail and we got:

t_{\alpha}= 1.796

And for this case the rejection region would be:

b) Reject H0 if tcalc >1.7960

Step-by-step explanation:

Information given

5, 7, 4, 6, 7, 5, 5, 6, 4, 4, 7, 5.

System of hypothesis

We want to test if the true mean is higher than 5, the system of hypothesis are :  

Null hypothesis:\mu \leq 5  

Alternative hypothesis:\mu > 5  

The statistic is given by:

t=\frac{\bar X-\mu_o}{\frac{s}{\sqrt{n}}} (1)  

The degrees of freedom first given by:  

df=n-1=12-1=11  

Then we can find the critical value taking in count the degrees of freedom and the alternative hypothesis and then we need to find a critical value who accumulates 0.05 of the area in the right tail and we got:

t_{\alpha}= 1.796

And for this case the rejection region would be:

b) Reject H0 if tcalc >1.7960

6 0
3 years ago
The first three steps in writing f(x) = 40x + 5x2 in vertex form are shown. What is the function written in vertex form?
pychu [463]
F(x) = 5(x + 4) – 80
f(x) = 5(x + 8) – 80
f(x) = 5(x + 4)2 – 80
f(x) = 5(x + 8)2 – 80
4 0
2 years ago
TNMILLER this for youuuuuuu!
sveta [45]

Answer:

??

Step-by-step explanation:

i am so confused... love ur pfp tho

6 0
3 years ago
Read 2 more answers
Paula has buttons. she gives away 28 buttons. choose the expression that shows the number of buttons paula has left.
mamaluj [8]

Answer:

y = 28 - x

Step-by-step explanation:

The variable x represents how many buttons Paula had before giving 28 away and the variable y represents how many buttons she has now.

3 0
2 years ago
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