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satela [25.4K]
2 years ago
10

Help me please! I’ll mark as brainliest!!

Mathematics
1 answer:
Genrish500 [490]2 years ago
5 0

Answer:

I think its C. but i might be wrong.

Step-by-step explanation:

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Express 30 as a product of its prime factors
Olegator [25]

Answer:

5 * 3 * 2

Step-by-step explanation:

30

15 * 2

5 * 3 * 2

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Please help I really need this done
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Answer:

your total is..

Step-by-step explanation:

$14.3 you just gotta add em all together!

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Henry is buying school supplies for the start of th school year. For every 3 pencils he buys 2 pens . If Henry buys 21 pencils.h
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Answer: He bought 7 pens.

Step-by-step explanation:

21/3 = 7

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What is the product of 289 and 7
kondaur [170]
289*7= 2023

Final answer: 2023
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3 years ago
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Write an equation of the line through the point (5, 3) that is perpendicular to the line –3x+7y=5.
Fed [463]

Answer:

7x + 3y = 44

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c (m is the slope and c the y- intercept )

Rearrange - 3x + 7y = 5 into this form by adding 3x to both sides

7y = 3x + 5 ( divide all terms by 7 )

y = \frac{3}{7} x + \frac{5}{7} ← in slope- intercept form

with slope m = \frac{3}{7}

Given a line with slope m then the slope of a line perpendicular to it is

m_{perpendicular} = - \frac{1}{m} = - \frac{1}{\frac{3}{7} } = - \frac{7}{3} , thus

y = - \frac{7}{3} x + c ← is the partial equation

To find c substitute (5, 3) into the partial equation

3 = - \frac{35}{3} + c ⇒ c = 3 + \frac{35}{3} = \frac{44}{3}

y = - \frac{7}{3} x + \frac{44}{3} ← in slope- intercept form

Multiply through by 3

3y = - 7x + 44 ( add 7x to both sides )

7x + 3y = 44 ← in standard form

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3 years ago
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