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3 years ago

Simplify the expressions by combining like terms:

Mathematics

2 answers:

Mariana [72]3 years ago

5 0

Answer:

-4m+4n

Step-by-step explanation:

(next time just ask m aa thw aa y)

MakcuM [25]3 years ago

3 0

Answer: -4m + 4n

4m - 8m = -4m

-2n + 6n = 4n

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Hi I need help can somone also give me and explain or how to work out the answer

SIZIF [17.4K]

Answer:

(A) looks right

Step-by-step explanation:

I am sorry if i am wrong

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3 years ago

Which number has a 3 that is 1/10 the value of the 3 in 14.37 ?

Eduardwww [97]

Answer:

0.3

Step-by-step explanation:

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3 years ago

I really need help guys can some one plz help me it's for 10 points

11111nata11111 [884]

Answer:

$\sqrt{8}----- 2units,2units$

$\sqrt{7} ------\sqrt{5}units,\sqrt{2}units$

$\sqrt{5}-------1unit,2units$

$3------2units, \sqrt{5}units$

Step-by-step explanation:

Use pythagorean's theorem to solve each pair individually.

The instructions say that you have the two sides (a and b) and you have to match it with their hypothenuse.

$Formula: c^2=a^2+b^2$

1. $a=\sqrt{5}, b=\sqrt{2}$

Plug this into the formula.

$c=\sqrt{(\sqrt{5} )^2+(\sqrt{2})^2 }$

The square here eliminates the roots.

$c=\sqrt{5+2}\\ c=\sqrt{7}$

2. $a=\sqrt{3}, b=4$

$c=\sqrt{(\sqrt{3} )^2+(4)^2}\\ c=\sqrt{3+16}\\ c=\sqrt{19}$

3. $a=2, b=\sqrt{5}$

$c=\sqrt{(2)^2+(\sqrt{5})^2 }\\ c=\sqrt{4+5}\\ c=\sqrt{9}\\ c=3$

4. $a=2, b=2$

$c=\sqrt{(2)^2+(2)^2}\\ c=\sqrt{4+4}\\ c=\sqrt{8}$

5. $a=1, b=2$

$c=\sqrt{(1)^2+(2)^2}\\ c=\sqrt{1+4}\\ c=\sqrt{5}$

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3 years ago

In need of help please :)

Anettt [7]

Answer:

okay let's start

Step-by-step explanation:

$number \: 1 \\ cos \: b = \frac{adjacent}{hypotenuse} \\ cos \: b = \frac{ac}{cb} \\ \: \ cos \: b = \frac{12}{13} \\$

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3 years ago

A scuba driver was swimming at an elevation of -8 meters. A shark was swimming at an elevation of -29 meters. Find the differenc

Oksana_A [137]

Answer:

-21

-29-(-8)=-21

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3 years ago