All categories

3 years ago

How could you correctly rewrite the equation 6(11 – 3) = 4(7 455) using the distributive property?

Mathematics

1 answer:

Sergeeva-Olga [200]3 years ago

4 0

Answer:

B. 66-18=28+20

Step-by-step explanation:

You might be interested in

Please help meeeeee:)))))

bonufazy [111]

Answer:

Step-by-step explanation:

the reason this because vertically opposite angles the equal so it's also 72

7 0

3 years ago

Read 2 more answers

The top five test scores in Mr. Rhodes’s class were: 98, 92, 96, 97, and 97. What is the mean absolute deviation?

PIT_PIT [208]

Answer:

Step-by-step explanation:

4 0

3 years ago

How do you get 1.8 from<img src="https://tex.z-dn.net/?f=f%282%29%3D%5Cfrac%7B2%7D%7B1%2Be%5E%7B-%282%29%7D%20%7D" id="TexFormul

Nataliya [291]

Answer:

see explanation

Step-by-step explanation:

$\frac{2}{1+e^{-2} }$ ← evaluate $e^{-2}$ using calculator

= $\frac{2}{1+0.135}$

= $\frac{2}{1.135}$

= 1.762.....

≈ 1.8 ( to 1 dec. place )

4 0

2 years ago

How can you use a rate to compare the costs of two boxes of cereal that are different sizes?

Leya [2.2K]

If you are given a unit rate (ex: $0.59 per ounce) then you can multiple this by the weight of the cereal to find the cost of the entire box. Do this for both boxes, and then compare the costs.

Hope this helps. I'm not sure that I'm on the right path, but I can help you further if you provide more details.

Good luck!

6 0

3 years ago

A study showed that 69% of supermarket shoppers believe supermarket brands to be as good as national name brands. To investigate

Valentin [98]

Answer:

We conclude that supermarket ketchup was not as good as the national brand ketchup.

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 100

p = 69% = 0.69

Alpha, α = 0.05

Number of stating that the supermarket brand was as good as the national brand , x = 56

a) First, we design the null and the alternate hypothesis

$H_{0}: p = 0.69\\H_A: p \neq 0.69$

This is a two-tailed test.

b) Formula:

$\hat{p} = \dfrac{x}{n} = \dfrac{56}{100} = 0.56$

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

Putting the values, we get,

$z = \displaystyle\frac{0.56-0.69}{\sqrt{\frac{0.69(1-0.69)}{100}}} = -2.810$

Now, we calculate the p-value from the table.

P-value = 0.0049

c) Since the p-value is lower than the significance level, we fail to accept the null and reject it.

Thus, we conclude that supermarket ketchup was not as good as the national brand ketchup.

d) It need to be tested further whether the supermarket brand was worse than the national brand or better than the national brand.

6 0

3 years ago