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Fynjy0 [20]
2 years ago
6

Factor completely 625x4 − 81.

Mathematics
1 answer:
Marina CMI [18]2 years ago
6 0
The correct answer is D
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The product of 4 and the sum of 7 and a number
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The product of 4 and the sum of 7 and a number.

Meaning:
                              
                     4 ( 7 + n )
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3 years ago
Read 2 more answers
1) WET SURPRISE A water balloon is launched off of a patio. The path of the water
mart [117]

The function of the water balloon is an illustration of a quadratic function.

The balloon will splat on the ground after 2.5 seconds

The function is given as:

h(t) = -6t^2 + 13t + 5

When the balloon splats on the ground, the value of h(t) is 0.

So, we have:

-6t^2 + 13t + 5 = 0

Expand the expression

-6t^2 + 15t- 2t + 5 = 0

Factorize the above expression

-3t(2t - 5)- 1(2t - 5 )= 0

Factor out 2t - 5 in the 2t - 5

(-3t - 1)(2t - 5 )= 0

Split the equation into 2

-3t - 1 = 0\ or\ 2t - 5= 0

Rewrite as:

-3t = 1\ or\ 2t = 5

Solve for t

t = -\frac 13\ or\ t = \frac 52

The value of t cannot be less than 0 i.e. negative.

So, we have

t = \frac 52

Divide 5 by 2

t = 2.5

Hence, the balloon will splat on the ground after 2.5 seconds

Read more about quadratic functions at:

brainly.com/question/11631534

6 0
3 years ago
John bought 24 pencils priced at 12 for $1.25 and 4 notebooks for $0.65 each. Which expression can john use to determine the tot
liraira [26]

Answer:

B

Step-by-step explanation:

If 12 pencils are 1.25, 24 would be 2 x 1.25. And 4 notebooks worth 0.65 would be 4 x 0.65

Added up, this expression is:

(2 x 1.25) + (4 x 0.64)

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SERIOUS MATH HELP PLEAZE<br> SHOW WORK OR AN EXPLANATION<br> HELPPPPPPPPPPPP
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Answer:

It's B.

Step-by-step explanation:

Z=-3, z=6

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3 years ago
Three of the choices are ways to express 0.50. Which is NOT?
borishaifa [10]

Answer:

5/100

Step-by-step explanation:

5 over 100 is 5%, while the other options are 50%

5 0
3 years ago
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