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IrinaK [193]
3 years ago
8

(3a2 + 2a - 2) - (a2 - 3a + 7)

Mathematics
1 answer:
drek231 [11]3 years ago
3 0
Remember to distribute invibile -1
simlify 2nd part
-(a^2-3a+7)=-1(a^2-3a+7)=-a^2+3a-7

now we have
3a^2+2a-2-a^2+3a-7=
3a^2-a^2+2a+3a-2-7=
2a^2+5a-9
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Solve the equation-8+6m= 1/2(4m+16) for m
Lena [83]

Answer:

m = 4

Step-by-step explanation:

Given

- 8 + 6m = \frac{1}{2}(4m + 16) ← distribute parenthesis

- 8 + 6m = 2m + 8 ( subtract 2m from both sides )

- 8 + 4m = 8 ( add 8 to both sides )

4m = 16 ( divide both sides by 4 )

m = 4

6 0
4 years ago
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What is the simplified equation of 9(x+3)-(2x+5)?
Zanzabum

Answer:

7x-2

Step-by-step explanation:

9(x+3)-(2x+5)

9x+3 -2x -5

7x-2

4 0
3 years ago
Evaluate the expression when a=5.<br>a² - 17​
jek_recluse [69]

Answer:

a²-17=8

Step-by-step explanation:

5²-17= 25-17

= 8

8 0
3 years ago
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Your realized income is $36,864.00/yr. Your fixed and housing expenses are 32% and your savings are 15% of your realized income
andriy [413]

Answer:

You will have $1628.16 per month in discretionary money.

Step-by-step explanation:

In order to find the amount of money you have left for discretionary purposes at the end of the money, you need to calculate the total amount of your monthly pay is going towards expenses and savings.  Since there are 12 months in a year, your monthly income is $3072.  Of that amount, you spend 32% on housing and 15% on savings, for a total of 47%.  The remaining percentage of your income would be considered discretionary, which would account for 53%.  To find the amount of money, you take your monthly income and multiply it by 53%, or .53, which gives you $1628.16.  

6 0
3 years ago
I need 3 questions answered please.​
kakasveta [241]

Answer:

3) \:  \: 113 {ft}^{2}

4) \: false

5) \: 70 {ft}^{2}

Step-by-step explanation:

3) Area of a circle is

\pi \times  {r}^{2}

Where r = 6

Thus,

area =   \frac{22}{7}  \times  {6}^{2}

area =  \frac{22}{7}  \times 36

area = 3.143 \times 36

area = 113 {ft}^{2} \: (nearest \: whole \: number)

4) False

Area of a circle is measured by the formula below:

area = \pi \times  {r}^{2}

5) The formula for calculating the area of a rectangle is given thus:

area \: of \: a \: rectangle = l \times w

Where, l = 10ft; w = 7ft

area = 10ft \times 7ft = 70 {ft}^{2}

8 0
4 years ago
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