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4 years ago

Verify that a+b=b+a by taking a=6 and b=3/6

Mathematics

1 answer:

Klio2033 [76]4 years ago

4 0

Answer:

Step-by-step explanation:

substitute all the numbers in

6+3/6+3/6+6=13

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What the distance from c to d

Travka [436]

Answer:

i think that the answer is 7 units

Step-by-step explanation:

let me know if im wrong

7 0

3 years ago

Read 2 more answers

Help and please explain!

UkoKoshka [18]

Answer:

a. 146

Step-by-step explanation:

{4*[72-6*(3+2)]}-22

=[4*(72-6*5)]-22

=[4*(72-30)]-22

=(4*42)-22

=168-22

=146

4 0

3 years ago

Sales at a fast-food restaurant average $6,000 per day. The restaurant decided to introduce an advertising campaign to increase

Akimi4 [234]

Answer:

The value of the test statistic is 2.8.

Step-by-step explanation:

The test statistic is:

$z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}$

In which X is the sample mean, $\mu$ is the value expected value for the population mean, $\sigma$ is the standard deviation and n is the size of the sample.

Sales at a fast-food restaurant average $6,000 per day

This means that $\mu = 6000$

Sample of 49

This means that $n = 49$

The sample showed average daily sales of $6,400.

This means that $X = 6400$

Population standard deviation is about $1,000.

This means that $\sigma = 1000$

The value of the test statistic is

$z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}$

$z = \frac{6400 - 6000}{\frac{1000}{\sqrt{49}}}$

$z = 2.8$

The value of the test statistic is 2.8.

7 0

3 years ago

What is the factorization of 2x^2 + 7x + 6?

qaws [65]

Answer:

( x + 2)(2x + 3)

Step-by-step explanation:

$2 {x}^{2} + 7x + 6 \\ \\ = 2 {x}^{2} + 4x + 3x + 6 \\ \\ = 2x(x + 2) + 3(x + 2) \\ \\ = ( x + 2)(2x + 3)$

6 0

3 years ago

What is the scale factor from triangle PRQ to triangle SUT

Alex

Answer:

Scale factor is 1.5

Step-by-step explanation:

ST = PR

10/15

= 1.5

8 0

3 years ago