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Debora [2.8K]
3 years ago
12

What is the sum of 3b(b-4) and 6(b-8)

Mathematics
1 answer:
lora16 [44]3 years ago
5 0

Answer:

This equals 3b^2-6b-48

Step-by-step explanation:

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10 pounds of Cat Food A costs $6.50. For 20 pounds of Cat Food B it is $14.00. Which cat food is the better deal? Write the answ
Gnom [1K]

Answer:

cat food a

Step-by-step explanation:

6.5/10 = 0.65 unit price

14/20 = 0.70 unit price

4 0
2 years ago
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Write the equation 0.3x 2 + 5x - 7 = 0 in general form and then choose the value of "b."
USPshnik [31]
The general form of a quadratic equation is that which is expressed in a form,
                                     ax² + bx + c = 0 
To write the equation in its general form, eliminate the decimal by multiplying the equation by 10. It now becomes,
                                        3x² + 50x - 70 = 0
The value of b is therefore 50 and the answer is the second choice. 
6 0
3 years ago
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If y = 5x – 4, which of the following sets represents possible inputs and outputs of the function, represented as ordered pairs?
lidiya [134]

Answer:

B

Step-by-step explanation:

Substitute the x value into the right side of the function and if the value obtained is equal to the y value of the point then it is a solution.

(0, - 4) → y = 5(0) - 4 = 0 - 4 = -4 ← True

(2, 6) → y = 5(2) - 4 = 10 - 4 = 6 ← True

(4, 20) → 5(4) - 4 = 20 - 4 = 16 ← False

(4, 16) → 5(4) - 4 = 20 - 4 = 16 ← True

(0, - 4), (2, 6), (4, 16) ← possible inputs and outputs

8 0
3 years ago
Plz help asap i meean asap plzz
aleksandrvk [35]
1. 4.374
2. 52.64
3. 840.5
6 0
3 years ago
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X-4=-11 please work problem out it’s homework need help
alisha [4.7K]

X-4=-11

move -4 to the other side

to get X by itself

sign changes from -4 to +4

X-4+4= -11+4

X= -11+4

Answer:

X= -7

5 0
3 years ago
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