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amid [387]
4 years ago
13

Why is it helpful to write a number as a product of primes

Mathematics
1 answer:
Debora [2.8K]4 years ago
5 0
Because if you are multiplying or dividing, you can regroup numbers to make it easy so exg
80 times 45 might look scary but it is really 2 times 2 times 2 times 2 times 3 times 3 times 5 times 5
regroup to make
(2 times 5) times (2 times 5) times (2 times 2 times 3 times 3)=10 times 10 times (6 times 6)=10 times 10 times 36=3600

dividing
188/132
188=2 times 2 times 47
44=2 times 2 times 3 times 11
so it becomes (2 times 2)/(2 times 2) times (47/(3 times 11))=1 times 47/33=47/33
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6. Use a proportion to solve the problem.
Igoryamba
34% of 83
As a result, x/83=34/100; 28.22 is your final answer. Hope it help!
5 0
3 years ago
What is an equation of the line that passes through the point (2,−6) and is parallel to the line x−2y=8?
lorasvet [3.4K]

Answer:

y = x/2 - 7

Step-by-step explanation:

First, we need to find the slope of the given equation: x - 2y = 8

Subtract x from both sides

x - 2y = 8

- x        - x

-2y = 8 - x

Divide both sides by -2

-2y/-2 = (8 - x)/-2

y = -4 + x/2

The slope of this equation is 1/2

So the equation of our parallel equation is y = x/2 + b

We have to find b, so plug in the given coordinates

-6 = 2/2 + b

-6 = 1 + b

Subtract 1 from both sides

-6 = 1 + b

- 1    - 1

b = -7

Plug it back into the original equation

y = x/2 - 7

6 0
3 years ago
What is the slope of a line that is parallel to the line y = -1/5 ?
Kisachek [45]
The line have a slope of 0.
The line parallel to this will also have a 0 slope.
7 0
3 years ago
After being rearranged and simplified, which of the following equations could be solved using the quadratic formula? Check all t
Grace [21]
You could try using the Microsoft math app for these type questions. I always do. Hope you pass
6 0
3 years ago
Read 2 more answers
Which of the following describes how to calculate the value of x?
quester [9]

Answer:

Option 1

Step-by-step explanation:

Given in the picture is a right triangle

One leg is x and hypotenuse is 8

The angle opposite leg x is given as 20 degrees

Recall the formula for trignometric ratio

sin t =\frac{opposite side}{hypotenuse}

Here opposite side of 20 is x and hypotenuse =8

Hence sin 20 =\frac{x}{8} \\8 sin20=x

So option I is right.

7 0
4 years ago
Read 2 more answers
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