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Ivahew [28]
3 years ago
15

A 35-year-old woman has 3 children. If you multiply the 3

Mathematics
1 answer:
Margaret [11]3 years ago
7 0

Answer:

Her oldest was 9, and the other 2 were 2

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The cost of t-shirts varies directly with the number of t-shirts. The data is shown in the graph. If x = is number of t-shirts,
Lera25 [3.4K]
The answer is y = 5.5x, so B
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3 years ago
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Write the equation of the line that passes through the points (-9, -3) and (-7,7).
tiny-mole [99]

Answer:

y=5x+42

Step-by-step explanation:

m=(y2-y1)/(x2-x1)

m=(7-(-3))/(-7-(-9))

m=(7+3)/(-7+9)

m=10/2

m=5

y-y1=m(x-x1)

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3 years ago
-4(a+3)+8-3(2a-8)=30
USPshnik [31]
If you’re solving for a... subtract the 8 to the other side so...
-4(a+3)- 3(2a-8) = 22.
Distribute the -4 and -3 into the parentheses (two negatives multiplied together is a positive)...
-4a-12-6a+24 = 22.
Add the constants and a’s together.
-10a + 12 = 22
Subtract 12 to the other side.
-10a = 10
Divide both sides by -10.
a = -1
Check and make sure that this answer works with the problem.
-4(-1+3)-3(-2-8)=22
-4(-2)-3(-10)=22.
-8+30=22.
22=22, the answer checks out
8 0
3 years ago
A. All real numbers
motikmotik

Answer:

B all real numbers

Step-by-step explanation:

what is the domain of the function (B)

3 0
3 years ago
Answer these 2 questions if ur smart?!?!?
Mariulka [41]

1. (4x+5y)(2x-3y)+3xy= 4x*2x-4x*3y+5y*2x-5y*3y+3xy=8x^2-12xy+10xy-15y^2+3xy= 8x^2+xy-15y^2

2. (2x^2+3)(4x+5)-8x(x^2-2)=2x^2*4x+2x^2*5+3*4x+3*5-8x*x^2+8x*2=

=8x^3+10x^2+12x+15-8x^3+16x=

=10x^2+28x+15

8 0
3 years ago
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