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2 years ago

15

1. Sally said that when you add or subtract positive or negative decimals, you can change the order of the decimals and still ge

t the same answer. Use these decimals to answer the questions

1 answer:

Oduvanchick [21]2 years ago

7 0

can you type the decimals in the comments

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What is -3(6x+4)+20x

Leona [35]

Answer:

2x - 12

Step-by-step explanation:

Given:

-3(6x+4)+20x

Distribute:

-18x-12+20x

Combine like terms:

2x-12

Hope this helps, have a nice day :))

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2 years ago

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Given right triangle MNL what is the value of cos(M)?

FromTheMoon [43]

Step $1$

<u>Find the length of the side MN</u>

we know that

Applying the Pythagorean Theorem

$ML^{2} =NL^{2} +MN^{2}$

Solve for MN

$MN^{2}=ML^{2} -NL^{2}$

in this problem

$ML=25\ units\\ NL=15\ units$

Substitute in the formula above

$MN^{2}=25^{2} -15^{2}$

$MN^{2}=400$

$MN=20\ units$

Step $2$

<u>Find the value of cos (M)</u>

we know that

in the right triangle MNL

$cos (M)=\frac{adjacent\ side\ angle\ M}{hypotenuse}$

$adjacent\ side\ angle\ M=MN=20\ units\\ hypotenuse=ML=25\ units$

Substitute

$cos (M)=\frac{20}{25}$

$cos (M)=\frac{4}{5}$

$cos (M)=0.8$

therefore

The answer is

The value of cos(M) is equal to $0.8$

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3 years ago

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B it's going to work

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2 years ago

What is the answer to −

Elis [28]

Answer:

-132

Step-by-step explanation:

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If x +23 = 9, then, x = 9-23.

So x = -14

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