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Dmitrij [34]
3 years ago
11

Expand and simplify 4 (3a-4)

Mathematics
2 answers:
Anettt [7]3 years ago
7 0

Answer:

a=\frac{4}{3}

Step-by-step explanation:

In this situation, we need to first do the distributive property.

4 (3a-4)= 12a -16

I am assuming that the equation would be equal to zero....

12a-16=0

Add 16 to both sides

12a=16

Divide 12 to both sides

a=\frac{16}{12}

Simplify

a=\frac{4}{3}

grandymaker [24]3 years ago
6 0
A=4/3 is the answer to your equation
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Mrs. Frasier is making costumes for the school play. Each costume requires 0.75 yard of fabric. She bought 6 yards of fabric. Ho
Marta_Voda [28]

Step-by-step explanation:

0.75 yard = 1 costume

1 yard = 1/0.75 =4/3 costume

6 yards = 4/3 × 6 = 8 costumes

if you wanna check,

8 costumes = 6 yards

1 costume = 6/ 8

= 3/4 (0.75) yard

3 0
3 years ago
Use completing the square to solve for x in the equation (x-12)(x+4)= 9.
iragen [17]

Answer:

x = 4 + sqrt(73) or x = 4 - sqrt(73)

Step-by-step explanation by completing the square:

Solve for x:

(x - 12) (x + 4) = 9

Expand out terms of the left hand side:

x^2 - 8 x - 48 = 9

Add 48 to both sides:

x^2 - 8 x = 57

Add 16 to both sides:

x^2 - 8 x + 16 = 73

Write the left hand side as a square:

(x - 4)^2 = 73

Take the square root of both sides:

x - 4 = sqrt(73) or x - 4 = -sqrt(73)

Add 4 to both sides:

x = 4 + sqrt(73) or x - 4 = -sqrt(73)

Add 4 to both sides:

Answer:  x = 4 + sqrt(73) or x = 4 - sqrt(73)

4 0
3 years ago
Evaluate the expression below if b=4 and c= -7.<br> 2b -(c + b)
KIM [24]
(-7c + 4b) + 2b (-7c - 6b) = -1
4 0
3 years ago
Read 2 more answers
Someone please help myst teacher never explains the hw
harina [27]

Answer:

Prob gonna be prob b

Step-by-step explanation:

3 0
3 years ago
(-4^-2) (49^-1/2)<br><br> Evaluate the expression
Marizza181 [45]

Answer:

-1/112

Step-by-step explanation:

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5 0
1 year ago
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