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3 years ago

14

Solve h(x) = 5 - 9x Find h(8)

2 answers:

PolarNik [594]3 years ago

8 0

Answer:

h(8) = -67

Step-by-step explanation:

To solve this problem, we take x in h(x) and input it for x within the problem.

In this case, h(8), so 8 is replacing x in 5-9x.

h(8) = 5 - 9(8)

h(8) = 5 - 72

h(8) = -67

Hope this helped!!

Alex_Xolod [135]3 years ago

4 0

h(x) = 5 - 9x

h(8) = 5 - 9×8 ( putting value x = 8)

h(8) = 5 - 72

h(8) = -67

Answer is -67.

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The perimeter of a rectangle is 64 units. Can the length x of the rectangle can be 20 units when its width y is 11 units?

vekshin1

B. No, the rectangle cannot have x = 20 and y = 11 because x + y ≠ 32

Perimeter = 2(l + w)
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Assuming: P = 64; w = 11 ; l = ?
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5 0

3 years ago

Read 2 more answers

stat crunch A simple random sample of size n=250 individuals who are currently employed is asked if they work at home at least o

Masteriza [31]

Answer:

The 99% confidence interval for the population proportion of employed individuals who work at home at least once per week is between (0.104, 0.224).

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of $\pi$ , and a confidence level of $1-\alpha$ , we have the following confidence interval of proportions.

$\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}$

In which

z is the zscore that has a pvalue of $1 - \frac{\alpha}{2}$ .

For this problem, we have that:

$n = 250, \pi = \frac{41}{250} = 0.164$

99% confidence level

So $\alpha = 0.01$ , z is the value of Z that has a pvalue of $1 - \frac{0.01}{2} = 0.995$ , so $Z = 2.575$ .

The lower limit of this interval is:

$\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.164 - 2.575\sqrt{\frac{0.164*0.836}{250}} = 0.104$

The upper limit of this interval is:

$\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.164 + 2.575\sqrt{\frac{0.164*0.836}{250}} = 0.224$

The 99% confidence interval for the population proportion of employed individuals who work at home at least once per week is between (0.104, 0.224).

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3 years ago

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4 0

3 years ago

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Igoryamba

Answer:

$(4x - 3)(5x - 8) = 20x^2 -47x + 24$

Step-by-step explanation:

Given

$(4x - 3)(5x - 8)$

Required

Identify and correct error

The error is when the inner and outer terms are multiplied. i.e.

$4x * -8 = -32x$ not 32x

$-3 * 5x = -15x$ not 15x

So, the expression is:

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6 0

3 years ago

Solve the equation. If there is no solution, select no solution. -2|h-7|=-28

dedylja [7]

Answer:

C). h = –7, h = 21.

Step-by-step explanation:

-2|h-7| = -28

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5 0

2 years ago