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Crank
3 years ago
11

G + 4g; g= -3help idek ​

Mathematics
2 answers:
scoray [572]3 years ago
8 0

▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪

Let's find the value of given expression when (g = -3) ~

  • g + 4g

  • - 3 + (4 \times  - 3)

  • - 3 + ( - 12)

  • - 3 - 12

  • - 15

I hope it helps ~

forsale [732]3 years ago
7 0

Answer:

-15

Step-by-step explanation:

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mihalych1998 [28]

The area of the carpet must be <u>greater than 20 square yards</u> for which Rugs Emporium charges more than Carpets 4U.

<u><em>Explanation</em></u>

Suppose, the number of square yards of carpet is  x

Rugs Emporium charges $80 plus $9.50 per square yard of carpet. So, the total charge for x square yards of carpet = (80+9.50x) dollar

Carpets 4U charges $120 for installation and $7.50 per square yard of carpet. So the total charge for x square yards of carpet =(120+7.50x) dollar

If the Rugs Emporium charges more than Carpets 4U , then the inequality will be.....

80+9.50x>120+7.50x\\ \\ 9.50x-7.50x>120-80 \\ \\ 2x>40\\ \\ x>20

So, the area of the carpet must be greater than 20 square yards for which Rugs Emporium charges more than Carpets 4U.


5 0
4 years ago
1.) f(x) = x +1<br> g(x) =- 2x + 5<br> Find f g(2)
Anettt [7]

Answer:

2

Step-by-step explanation:

Given f(x) = x + 1 and g(x) = -2x + 5, find f(g(2)).

First, we must plug in the value of g(x) into f(x).

f(g(x)) = (-2x+5) + 1

Then, we plug in g(x)'s x-value.

f(g(2)) = (-2(2) + 5) + 1

Now, we solve.

f(g(2)) = (-4 + 5) + 1

f(g(2)) = 1 + 1

f(g(2)) = 2

4 0
3 years ago
You are trying to estimate the average amount a family spends on food during a year. In the past the standard deviation of the a
PolarNik [594]

The number of the families that need to be surveyed will be 2663.

<h3>What is the margin of error?</h3>

Your results will deviate from the actual population value by how many percentage points, as indicated by the margin of error.

We have the following info:

ME = 50 margins of error desired

\sigma = 1000 the standard deviation for this case

The margin of error is given by this formula:

(a) ME=Z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}

And on this case, we have that ME =50 and we are interested in order to find the value of n, if we solve n from equation (a) we got:

(b) n =(\dfrac{Z_{a\2}\sigma}{ME})^2

The critical value for the 99% of confidence interval now can be founded using the normal distribution. The significance is \alpha = 0.01. And for this case would be Z_{\alpha / 2} = 2.58, replacing into formula (b) we got:

n=(\dfrac{2.58(1000)}{50})^2= 2663

So the answer for this case would be n=2663 rounded up to the nearest integer.

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Answer:

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Step-by-step explanation:

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