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monitta
3 years ago
8

What is the vertex of g(x)=8x^2-64x

Mathematics
2 answers:
Mama L [17]3 years ago
8 0
<span>The (x,y) point of the vertex is usually labelled as:
Vertex = (h, k)
h = -b /  2a
h = --64 / 2*8
h = 64 / 16
</span><span>h = 4

</span>
<span>To get “k”, input the “h” value into the equation.
<span>k = 8*(4^2) -64*4
</span> <span>k = 8*(4^2) -64*4
</span><span>k = 128 -256
</span><span>k = -128
</span></span><span>Vertex = (4, -128)

</span>
Shkiper50 [21]3 years ago
5 0

Answer:

Vertex = (4, -128)

Step-by-step explanation:

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whenever Sabrina visits the gym she lifts weights for 8 minutes and runs on the treadmill for 35 minutes. write two equivalent e
Darya [45]
Your answer will be 8+35×5=215 because she works out 43 minutes total a day (8+35=43) and then you have to do that for 5 more more day so you can do 43 × 5 or 43+43+43+43+43 your answer will come out the same
5 0
4 years ago
I don’t understand how to do 1 a.
nikitadnepr [17]

a. 6 x 5 = 30

b. 5.6 x 5 = 28

a. 20 devided by 5 = 5.6

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3 0
3 years ago
A sample of 5 strings of thread is randomly selected and the following thicknesses are measured in millimeters. Give a point est
liq [111]

Answer:

s^2 = \frac{(1.48-1.502)^2 +(1.45-1.502)^2 +(1.54-1.502)^2 +(1.52-1.502)^2 +(1.52-1.502)^2}{5-1} =0.00132

And for the deviation we have:

s= \sqrt{0.00132}=0.0363

And that value represent the best estimator for the population deviation since:

E(s) =\sigma

Step-by-step explanation:

For this case we have the following data:

1.48,1.45,1.54,1.52,1.52

The first step for this cae is find the sample mean with the following formula:

\bar X =\frac{\sum_{i=1}^n X_}{n}

And replacing we got:

\bar X= \frac{1.48+1.45+1.54+1.52+1.52}{5} = 1.502

And now we can calculate the sample variance with the following formula:

s^2 =\frac{\sum_{i=1}^n (X_i -\bar X)^2}{n-1}

And replacing we got:

s^2 = \frac{(1.48-1.502)^2 +(1.45-1.502)^2 +(1.54-1.502)^2 +(1.52-1.502)^2 +(1.52-1.502)^2}{5-1} =0.00132

And for the deviation we have:

s= \sqrt{0.00132}=0.0363

And that value represent the best estimator for the population deviation since:

E(s) =\sigma

4 0
3 years ago
Read 2 more answers
What percent of 400 is 260
postnew [5]
260/400=0.65
your answer will be 65%
6 0
3 years ago
Helppp!
lilavasa [31]

Answer:

It's the the 4th one. 6.3.3

5 0
2 years ago
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