MATHEMATICS MIDDLE SCHOOL

What's distributive property to express 15 + 45

Answers

Answer 1

Answer: Distribute 3*(5+15) or 5*(3+9) or 15*(1+3)

Answer 2

Answer:

this will work
5 (3 + 9)

15 + 45

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I know that 300÷30=10 because the 3 in 300 represents what times what it represents in what.

Answers

3 in 300 represents 3 times 100. it represents 300

3 represents the 3 times in 100

14+x=46;x=32

whats the answer im so stuck

Answers

The solution to your problem would be that x = 32; or just 32. You did all the heavy lifting!

so it say that x is equal to 32 so you equation must look like this
14+32=45

1/3 to the 3rd power

Answers

Answer:

I believe the answer to this question is: 1/27.

For science experiment,Noel measured a piece of metal that has a mass of 3,500 grams.What is the mass of the metal in kilograms?

Answers

3,500 g=3,500 g * (1 Kg / 1000 g)=3.5 Kg.

answer: 3,500 g=3.5 Kg

What is the prime factorization of 70

Answers

Hey, 12345610!
The prime factorization of 70 is 2 • 5 • 7.
Fact:The number has to be a composite number to have the prime factorization.
I hope this helps;)

Hi There! :D

What is the prime factorization of 70

$2$ × $5$ × $7$

A building that is 100 for tall casts a shadow that makes a 30 degree angle. Approximately how long in feet is the shadow across the ground?

Answers

Answer: 173.20 ft

Step-by-step explanation:

Observe the attached image. To know how long the shadow is, we must find the length of the adjacent side in the triangle shown. Where the opposite side represents the height of the building

By definition, the function $tan (x)$ is defined as

$tan(x) = (opposite)/(adjacent)$

$opposite = 100\ feet\nx=30\°$

$adjacent = l$

Then

$tan(30\°) = (100)/(l)$

$l = (100)/(tan(30\°))$

$l = 173.20\ ft$

Hello!

The answer is:

The shadow is 173.20 feet

Why?

To solve the problem, we need to calculate the projection of the building's shadow over the ground.

We already know the height of the building (100 feet), also, we know the angle of elevation (30°), so, we can use the following formula to calculate it:

$Tan(\alpha)=(y)/(x)=(height)/(x)\n\nx=(height)/(Tan(\alpha) )$

Now, substituting the given information and calculating, we have:

$x=(height)/(Tan(\alpha) )$

$x=(100feet)/(Tan(30\°) )=173.20feet$

Have a nice day!

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