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Marizza181 [45]
3 years ago
15

Pls help me w this question!!

Mathematics
1 answer:
katrin2010 [14]3 years ago
4 0

Answer:

v =  sqrt(473)

Step-by-step explanation:

v^2 = u^2 +2as

Let u = 9 a = 7 and s = 28

v^2 = 9^2 +2(7)(28)

v^2 = 81 + 392

v^2 = 473

Take the square root of each side

sqrt(v^2) = sqrt(473)

v =  sqrt(473)

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What is the completely factored form of x3 â€"" 64x? x(x â€"" 8)(x â€"" 8) (x minus 4) (x squared 4 x 16) x(x â€"" 8)(x 8) (x â€
Vadim26 [7]

The factored form of an equation is done by rewriting the equation in simpler forms.

The completely factored form of x^3 - 64x is x(x-8)(x + 8)

The expression is given as:

x^3 - 64x

Factor out x from the expression, x^3 - 64x

x^3 - 64x = x(x^2-64)

Express 64 as 8^2

x^3 - 64x = x(x^2-8^2)

Express the expression as a difference of two squares

x^3 - 64x = x(x-8)(x + 8)

Hence, the completely factored form of x^3 - 64x is x(x-8)(x + 8)

Read more about factorization at:

brainly.com/question/3024511

3 0
2 years ago
I need help on this, if anyone knows how to do this can you help me out pls
ASHA 777 [7]
<h3>Answer:  (3, 0)</h3>

=================================================

Explanation:

Let's isolate x in the first equation.

x-2y = 3

x = 3+2y

Then we'll plug this into the second equation

Afterwards, solve for y.

2x + 4y = 6

2(3+2y)+4y = 6

6+4y+4y = 6

8y+6 = 6

8y = 6-6

8y = 0

y = 0/8

y = 0

Use this to find x.

x = 3+2y

x = 3+2(0)

x = 3

The solution is therefore (x,y) = (3, 0)

If you were to graph both lines, then they would intersect at the location (3,0).

-----------------------------

Checking the answer:

Plug x = 3 and y = 0 into the first equation.

x-2y = 3

3-2(0) = 3

3 - 0 = 3

3 = 3 that works

Repeat for the other equation

2x+4y = 6

2(3) + 4(0) = 6

6 + 0 = 6

6 = 6 that works as well

Both equations are true when (x,y) = (3,0).

The solution is confirmed.

6 0
3 years ago
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tia_tia [17]
The answer is number 3
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Find the area of the shaded region.
Gennadij [26K]

Answer:

area = 3.44 in²

Step-by-step explanation:

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area of circle = (3.14)(2²) = 12.56 cm²

area = 16 - 12.56 = 3.44 in²

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