2 years ago

F(x)=2x^2-4x-18 find f(-6)

Mathematics

1 answer:

tia_tia [17]2 years ago

8 0

Answer:

The Answer is 78

Step-by-step explanation:

Use the given functions to set up and simplify! f(-6)

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Answer: C or 2 seconds.

Step-by-step explanation:

To find the vertex in a standard form equation: (-b/2a,f(-b/2a))

plug it in: -64/2*-32 = 2

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3 years ago

A quality control engineer at a potato chip company tests the bag filling machine by weighing bags of potato chips. Not every ba

Ahat [919]

Answer:

$z=\frac{0.21 -0.15}{\sqrt{\frac{0.15(1-0.15)}{100}}}=1.68$

Step-by-step explanation:

Information provided

n=100 represent the random sample taken

X=21 represent the number of bags overfilled

$\hat p=\frac{21}{100}=0.21$ estimated proportion of overfilled bags

$p_o=0.15$ is the value that we want to test

z would represent the statistic

Hypothesis

We need to conduct a hypothesis in order to test if the true proportion of overfilled bags is higher than 0.15.:

Null hypothesis: $p =0.7$

Alternative hypothesis: $p > 0.15$

The statistic for this case is:

$z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}}$ (1)

And replacing the info given we got:

$z=\frac{0.21 -0.15}{\sqrt{\frac{0.15(1-0.15)}{100}}}=1.68$

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2 years ago

What integers fall between the square root of 12

Dafna1 [17]

The square root of 12 is 3.4.
Your integers are 3 and 4.
I hope this helps!

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3 years ago

What should you do first to simplify the expression (43 + 9) ÷ 76 + 5?

Vaselesa [24]

Do the parentheses first

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2 years ago

Please solve (-3×+15)+(-3×+2)

koban [17]

(-3x + 15) + (-3x + 2)
Simplify by combining like terms.
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2 years ago

Read 2 more answers