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Wewaii [24]
3 years ago
15

Cmon brainly help me with 8 through 12 im begging you 500+ points wasted

Mathematics
2 answers:
ratelena [41]3 years ago
4 0

Answer:

I know 9-12.

9) a^2+8a-10

10) 15v+22w

11) 10c^2+4c

12) z^3-8z^2+5z+23

Step-by-step explanation:

Simora [160]3 years ago
3 0

Answer:

8. P=10X+16Y+14

9. a^2+8a-10

10. 15v+22w

11. 10c^2+4c

12. z^3-8z^2+5z+23

Step-by-step explanation:

8. P=2(l+w)

P=2((2x+7)+(3x+8y))

P=2(5x+8y+7)

P=10x+16y+14

9. 3a+a^2+5a-10 = a^2+8a-10

10. 8v+8w+7v+14w  =  15v+22w

11.  4c^2+6c+6c^2-2c  =  10c^2+4c

12. z^3+5z+15+8-8z^2  =  z^3-8z^2+5z+23

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Evaluate the. Expression x+ 9, if x= 8. 1, 2, 17, 89
Solnce55 [7]

Answer:

17

Step-by-step explanation:

We are given the expression find x + 9 if x = 8.

When a certain number has a variable and the value of the variable is known, all you have to do is plug in the variable amount into the equation, therefore :

x is 8 , so we plug in 8 for x

x + 9 =

8 + 9 = 17

3 0
3 years ago
Read 2 more answers
The same bedroom furniture set costs $1,500 in both Florida and Alabama. The table gives a breakdown of the taxes someone would
vitfil [10]

Answer:

A: True

B, C and D: False

Step-by-step explanation:

We have a total sales tax for Alabama that is:

T_A=4.225+1.375+3=8.6

The total sales tax for Florida is:

T_F=6.5+1+1.625=9.125

The total sales tax is greater in Florida than in Alabama.

A. The furniture set is cheaper in Alabama, because the amount of sales tax will be lower by about $8. TRUE

The sales tax difference in this purchase can be calculated as:

1500(T_F-T_A)=1500\left(\dfrac{9.125-8.6}{100}\right)=1500\cdot 0.00525=7.875\approx 8

B. The furniture set is cheaper in Florida, because the amount of sales tax will be lower by about $10. FALSE (it is cheaper in Alabama)

C. The furniture set is cheaper in Alabama, because the amount of sales tax will be lower by $10. FALSE (the sale tax in Alabama is $129)

The amount of sales tax in Alabama is:

ST_A=1500\cdot T_A=1500\cdot 0.086=129

D. The furniture set costs the same in either state, because the amount of sales tax will be the same for the two locations. FALSE (it is not the same in both states).

7 0
3 years ago
1.<br> 3z^2+ 8z-3<br> in quadratic formula
tensa zangetsu [6.8K]

Answer:

What grade of math is this?

Step-by-step explanation:

4 0
3 years ago
Which of the following systems of linear inequalities is represented by the solution graphed below?
sattari [20]
Answer is A, y us smaller/equal to 2 and y is smaller/equal to X
5 0
3 years ago
Jerry wants to buy 4 Michelin tires. Each tire costs $213.99. Calculate his total price if the tax rate is 7.25%.
arlik [135]

Answer:

$918.02

Step-by-step explanation:

As each tire costs $213.99, you will be multiplying that by 4:

$213.99*4 = $855.96

Now you will have to add the tax to the price. You will do the following:

$855.96*.0725 = 62.0571

You will round that to $62.06

$855.96+$62.06

The total would be $918.02

3 0
3 years ago
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