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Stolb23 [73]
3 years ago
6

Explain your answer please.

Mathematics
1 answer:
andriy [413]3 years ago
7 0
Just do length x width x height
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Hello need help with this one to and thanks and have a great day or weekend and be safe
Mandarinka [93]

Answer:

a) It's a quadratic

b) f(x) = A(x-3)(x-7)

c) she is right

Step-by-step explanation:

(0-12)/(3-1) = -6

(-4-0)/(5-3) = -2

Since the slope is not constant, it can't be a linear.

Therefore a quadratic

Since the zeroes are 3 and 7,

Factors are (x - 3) and (x - 7)

f(x) = A(x - 3)(x - 7)

Use any one point besides the x-intercepts to find A

12 = A(1-3)(1-7)

12 = 12A

A = 1

f(x) = (x - 7)(x - 3)

f(x) = x² - 7x - 3x + 21

f(x) = x² - 10x + 21

She is right

7 0
3 years ago
Read 2 more answers
Write the expression that would represent “seven less than five times a number.”
Misha Larkins [42]

Answer:

7-5x

Step-by-step explanation:

3 0
3 years ago
600 or 600 decreased by 20% and then increased by 20% of the result? Which amount is larger and by how much
ohaa [14]

Answer:

The initial value of 600 is larger and larger by 24.

Step-by-step explanation:

First of all a 20% decreased of 600.

So, the new value will be 600(1 - \frac{20}{100}) = 600 \times 0.8 = 480.

Now, then it is increased by 20% i.e. 480 will be increased by 20%.

So, the new value will be 480(1 + \frac{20}{100}) = 480 \times 1.2 = 576.

Therefore, the initial value of 600 is larger and larger by (600 - 576) = 24. (Answer)

3 0
3 years ago
Find the midpoint of A and B where A has coordinates (8,5)<br> and B has coordinates (3, 7).
Mama L [17]

Answer:

Step-by-step explanation:

Average of x-coordinates = (8+3)/2 = 5.5

Average of y-coordinates = (5+7)/2 = 6

Midpoint at (5.5,6)

5 0
3 years ago
What is the y value in this equation ?X(0)=(-1/3y)+6
snow_lady [41]

Answer:

18

Step-by-step explanation:

8 0
3 years ago
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