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kkurt [141]
2 years ago
8

What is the value of x?

Mathematics
1 answer:
Stella [2.4K]2 years ago
7 0

Answer:

It should to be 70

Step-by-step explanation:

check the answer it should to be this

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If f(x) = 4x^3 + Ax^2 + 7x - 1 and f(2) = 3, what is the value of A?<br> (^ = powers)
bekas [8.4K]

Answer:

A = -10.5

Step-by-step explanation:

To find the value of "A", you can plug x = 2 and f(x) = 3 into the equation. This will allow you to simplify and find the value of "A".

f(x) = 4x³ + Ax² + 7x - 1                     <---- Original equation

3 = 4(2)³ + A(2)² + 7(2) - 1                 <---- Plug x = 2 and f(x) = 3 into equation

3 = 4(8) + A(4) + 14 - 1                      <---- Solve 2³ and 2²

3 = 32 + A(4) + 14 - 1                        <---- Multiply 4 and 8

3 = 45 + A(4)                                    <---- Combine like terms

-42 = A(4)                                         <---- Subtract 45 from both sides

-10.5 = A                                         <---- Divide by 4

If A = -10.5, the final equation would look like this:

f(x) = 4x³ - 10.5x² + 7x - 1

8 0
2 years ago
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Write an equation that you could use to calculate the distance from NIGEL's feet to the balloon. Let x represent the unknown dis
Sholpan [36]
X2+122=182 I think sorry if am not right
7 0
2 years ago
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How many dollars are in Fifty pennies
andrew11 [14]
1/2. 50 pennies equals $0.50
4 0
3 years ago
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Distribute. 5(b - 1)
pshichka [43]

Answer:

5b-5

Step-by-step explanation:

5(b - 1)

5(b) 5(-1)

5b-5

4 0
2 years ago
Rodrigo made 6/8 of a pound of trail mix. If he puts 1/4 of a pound into each bag, how many bags can Rodrigo fill?
ValentinkaMS [17]

Answer:

He can fill 3 bags

Step-by-step explanation:

You would first make them have a common denominator so you would have 2/8 instead of 1/4 then you would do 6/8 divided by 2/8 to get 3

1/4 = 2/8

6/8 divided by 2/8 = 3

7 0
2 years ago
Read 2 more answers
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