Please help me with this mathematics worksheet

Mathematics

1 answer:

Tatiana [17]3 years ago

5 0

Answer:

1. 3570

2.-8y+32

3. 8y-(2y^2)(1+y)

4.x-y

5. 4^2−3−^2

Step-by-step explanation:

The distributive property means that you can multiply each number in a set of parentheses by the number outside the parentheses or by the numbers in another set of parentheses instead of doing the multiplication as a whole

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If a rate is $56 per 7 hours is reduced to a unit rate, results is . do not include units in your answer

DiKsa [7]

You'd probably need to divide 56 by 7 which gives you 8

6 0

3 years ago

What is the distance between (1, -4) and (1, 18

Annette [7]

<h3>Answer: 22 units</h3>

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Explanation:

You can use the distance formula

$d = \sqrt{ (x_1-x_2)^2 + (y_1-y_2)^2}\\\\d = \sqrt{ (1-1)^2 + (-4-18)^2}\\\\d = \sqrt{ (0)^2 + (-22)^2}\\\\d = \sqrt{ 22^2}\\\\d = 22\\\\$

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A shorter method is to subtract the y coordinates and apply absolute value

So either |-4-18| = |-22| = 22

Or, |18 - (-4)| = |18+4| = |22| = 22

This method only works because the x coordinates are the same. We can also use this method if the y coordinates were the same with the x coordinates being different.

4 0

3 years ago

1.5b + 9 = 11<br><br> Please help will give brainliest to CORRECT answer

Elis [28]

1.5b=11-9
1.5b=2
b=1.3 repeating or 1 1/3

6 0

3 years ago

Read 2 more answers

when tom simplified the expression -2.6 + (-5.4), he got 2.8 what mistake did tom likely make? pls help me

olga_2 [115]

Answer:

2.6 and 5.4 are both the same sign, he should add them and then take that negative sign from (-5.4), so the answer would be -8.0.