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ch4aika [34]
3 years ago
9

Expand and simplify3(x-y)+4(x+2y)​

Mathematics
2 answers:
rusak2 [61]3 years ago
7 0

Step-by-step explanation:

3x-3y+4x+8y

3x+4x-3y+8y

7x+5y Ans

Only like terms can be simplified

melomori [17]3 years ago
3 0

Answer:

3x-3y+4x+8y

The answer is: 7+5y

Step-by-step explanation:

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Expresa la razón en su forma más simple:<br> 21 a 98
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3 a 14

Step-by-step explanation:

21 a 98

dividir ambos por 7

3 a 14

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What type of angle of this?
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A carpenter cuts a 5 feet 11 inch piece of board from a 10 feet 9 inch piece. What is the
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Answer:

4 feet and 9 inches

Step-by-step explanation:

first you want to take the 11 inches from the 9 but you can't so you would take the 3 missing inches from the 10 foot and that would make it 9 feet and 9 inches

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4 0
3 years ago
I need help with this ASAP! Its about budgeting.
Umnica [9.8K]

Answer:

Step-by-step explanation:

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3 0
3 years ago
Perform the following operations and write the answers in radical form.
strojnjashka [21]

Given:

Part A: \sqrt{7}+\sqrt{3}+\sqrt{98}-\sqrt{18}

Part B: 3 \sqrt{5}-3 \sqrt{11}+2 \sqrt{121}-3 \sqrt{90}

To find:

The simplified radical form.

Solution:

Part A: \sqrt{7}+\sqrt{3}+\sqrt{98}-\sqrt{18}

\sqrt{98}=\sqrt{7^2 \times 2} =7 \sqrt{2}

\sqrt{18}=\sqrt{3^2 \times 2} =3 \sqrt{2}

Substitute these in the given expression.

\sqrt{7}+\sqrt{3}+\sqrt{98}-\sqrt{18}=\sqrt{7}+\sqrt{3}+7\sqrt{ 2}-3\sqrt{ 2}

Add or subtract the coefficient of same radical.

                                    =\sqrt{7}+\sqrt{3}+(7-3)\sqrt{ 2}

                                    =\sqrt{7}+\sqrt{3}+4\sqrt{ 2}

Part B: 3 \sqrt{5}-3 \sqrt{11}+2 \sqrt{121}-3 \sqrt{90}

2 \sqrt{121}=2\sqrt{11^2}

           =2\times 11

           = 22

3 \sqrt{90}=3\sqrt{3^2 \times 10}

           =3\times 3 \sqrt{10}

           =9 \sqrt{10}

Substitute these in the given expression.

3 \sqrt{5}-3 \sqrt{11}+2 \sqrt{121}-3 \sqrt{90}=3 \sqrt{5}-3 \sqrt{11}+22-9 \sqrt{10}

8 0
3 years ago
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