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3 years ago

11(3x+5y)= I want to know the result of that equation

Mathematics

1 answer:

pychu [463]3 years ago

8 0

Answer:

33x+55y

distribute the 11 to both terms

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B-10 > 5; 14, 15, 16

torisob [31]

B = 16
explanation:
b-10 > 5
16-10 > 5
6 > 5
The other answer choices are less than or equal to 5

3 0

2 years ago

Given the function f(x) = 6x2 + 3 Find f(-2) -22 27 9 15

Andrews [41]

Answer:

Step-by-step explanation:

Out of those numbers and assuming the equation is f(x) = 6x^2=3

f(-2)= 6(-2)^2+3

8 0

2 years ago

What is the center of a circle with the equation (x − 6)2 + (y + 2)2 = 9?

MakcuM [25]

The correct answer is C.

3 0

3 years ago

Read 2 more answers

A marketing researcher wants to find a 96% confidence interval for the mean amount those visitors spend per person per day while

ki77a [65]

Answer:

$n=(\frac{2.054(12)}{4})^2 =37.97 \approx 38$

So then the minimum sample to ensure the condition given is n= 38

Step-by-step explanation:

Notation

$\bar X$ represent the sample mean for the sample

$\mu$ population mean (variable of interest)

$\sigma=12$ represent the population standard deviation

n represent the sample size

ME = 4 the margin of error desired

Solution to the problem

When we create a confidence interval for the mean the margin of error is given by this formula:

$ME=z_{\alpha/2}\frac{\sigma}{\sqrt{n}}$ (a)

And on this case we have that ME =4 and we are interested in order to find the value of n, if we solve n from equation (a) we got:

$n=(\frac{z_{\alpha/2} \sigma}{ME})^2$ (b)

The critical value for 96% of confidence interval now can be founded using the normal distribution. The significance is $\alpha=1-0.96 =0.04$ . And in excel we can use this formula to find it:"=-NORM.INV(0.02;0;1)", and we got $z_{\alpha/2}=2.054$ , replacing into formula (b) we got:

$n=(\frac{2.054(12)}{4})^2 =37.97 \approx 38$

So then the minimum sample to ensure the condition given is n= 38

5 0

3 years ago

Solve for x in the equation x2+2x+1= 17. x=-1: V15 x=-11/17 X=-2=2.5 X=-11 13

Shalnov [3]

Answer:

x=-1

Step-by-step explanation:

x^2+2x=16=0

Use the quadratic formula to find the solutions.

−b±√b2−4(ac)/

Substitute the values

a=1, b=2, and c=−16 into the quadratic formula and solve for x

4 0

3 years ago