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3 years ago

Simplify the expression8(5 plus w)

Mathematics

1 answer:

inna [77]3 years ago

8 0

8(5 plus w)

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8*5 + 8*w

40 + 8w

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7.1.13 Question Help Use the sample data and confidence level given below to complete parts (a) through (d). A research institut

r-ruslan [8.4K]

Answer:

The Point estimate of the Population proportion E = 0.039≅0.04

Step-by-step explanation:

Step(i):-

Given that the sample size 'n' = 992

and x = 570

The Population proportion

$p = \frac{x}{n} = \frac{570}{992} = 0.5745$

Step(ii):-

The point estimate of the Population proportion is determined by

$E = 2.576 \frac{\sqrt{0.574(1-0.574)} }{\sqrt{992} }$

E = 0.039≅0.04

Final answer:-

The point estimate of the Population proportion E = 0.039≅0.04

6 0

2 years ago

If the cost of producing a product that sells for $40 is 72,000 plus $32.00 per piece, then how many products must be sold to br

lisabon 2012 [21]

we are given:

Selling price=$40.00

Fixed cost=$72000.00

Cost per piece=$32.00

Let x products be sold to break-even then

$\\ \ 40x=7200+32x\\ \\ \ \Rightarrow 40x-32x=7200\\ \\ \ 8x=7200\Rightarrow x=\frac{7200}{8}=900\\$

3 0

2 years ago

The ratio to cats at an animal shelter 3:1. if there are 56 dogs and cats in all, how many more dogs than cats are there??

Black_prince [1.1K]

Answer:

There are 28 more dogs than cats at the animal shelter.

Step-by-step explanation:

If the ratio of dogs to cats at an animal shelter is 3:1, that means there are 3 dogs for every 1 cat.

The way I think about it is I try multiplying every number by 3 and 1, kind of like process of elimination.

After using every number from 1-13, I finally got to 14. Now, 3 x 14 = 42 and 1 x 14 = 14. Add 42 + 14 and you will get 56.

So there are 42 dogs and 14 cats at the animal shelter.

However, it is asking for how many more dogs than cats there are, so you have to subtract 42 - 14 and the answer is 28 more dogs than cats.

6 0

2 years ago

Please help, thanks.

Svetllana [295]

$\text{Apply Pythagorean theorem,}\\ \\~~~~~~12^2 = 3^2 + h^2\\\\\implies h^2 = 12^2 -3^2\\\\\implies h^2 = 144-9\\\\\implies h^2 = 135\\\\\implies h = \sqrt{135}\\\\\implies h = 3\sqrt{15}\\\\\implies h \approx 11.62$

6 0

2 years ago

Read 2 more answers

If angle B is two more than three times the measure of angle C, and angle B are

GalinKa [24]

Set up a system of equations:

B=2+3C

B+C=90

The variable B is already solved, so plug into bottom equation:

2+3C+C=90

2+4C=90

4C=88

C=22

Plug C back in:

B+22=90

B=68

So B is 68 degrees and C is 22 degrees

Hope this helped!

6 0

2 years ago