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3 years ago

11

How do you solve multiplying binomials with example: (x+4)^2

1 answer:

salantis [7]3 years ago

8 0

This can be written as (x+4)(x+4)

Multiply everything in the second parenthesis by the x.

x^2 + 4x

Multiply everything in the second parenthesis by 4.

4x + 16

Add these two equations together.

x^2 + 4x + 4x + 16

Combine like terms.

x^2 + 8x + 16

Hope this helps!

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By accident, six burned-out bulbs have been mixed in with 26 good ones. Ken is replacing old bulbs in his house. If he selects t

katrin2010 [14]

Answer:

Step-by-step explanatxhhfghgion:

8 0

3 years ago

Find the equation of the quadratic function with zeros 10 and 12 and vertex at (11, -2).

Tanya [424]

Answer:

$y=2x^2-44x+240$

Step-by-step explanation:

we are given a quadratic equation

Let's assume formula of vertex form of parabola as

$y=a(x-h)^2+k$

where vertex is (h,k)

we are given

vertex =(11,-2)

so, h=11, k=-2

now, we can plug it

$y=a(x-11)^2-2$

now, we are given zeros at x=10 and x=12

we know that zeros will be x=10 , y is 0

so, we can plug x=10 and y=0 and solve for 'a'

$0=a(10-11)^2-2$

$0=a-2$

$a=2$

now, we can plug it back

and we get

$y=2(x-11)^2-2$

so, we get quadratic equation as

$y=2x^2-44x+240$

6 0

3 years ago

Please answer this question now

Svetlanka [38]

Answer:

y = 9.1

Step-by-step explanation:

By applying Sine rule in the given triangle WXY,

$\frac{\text{SinW}}{\text{XY}}=\frac{\text{SinY}}{\text{WX}}=\frac{\text{SinX}}{\text{WY}}$

$\frac{\text{SinW}}{\text{w}}=\frac{\text{SinY}}{\text{y}}=\frac{\text{SinX}}{\text{x}}$

Since m∠W + m∠X + m∠Y = 180°

m∠W + 58° + 106° = 180°

m∠W = 180° - 164°

m∠W = 16°

$\frac{\text{Sin16}}{\text{w}}=\frac{\text{Sin106}}{\text{y}}=\frac{\text{Sin58}}{\text{8}}$

$\frac{\text{Sin106}}{\text{y}}=\frac{\text{Sin58}}{\text{8}}$

y = $\frac{8\times (\text{Sin106})}{\text{SIn58}}$

y = 9.068

y ≈ 9.1

4 0

3 years ago

Solve pls brainliest

Scilla [17]

Answer:

b

Step-by-step explanation:

9/4=2.25

13.5/6=2.25

18/8=2.25

7 0

2 years ago

Read 2 more answers

PLEASE HELP ASAP ! WILL GIVE BRAINLIEST Quadrilateral OPQR is inscribed inside a circle as shown below. What is the measure of a

finlep [7]

Answer:

The measure of angle P is 43°

Step-by-step explanation:

If a quadrilateral is inscribed inside a circle, the sum of opposite angles are always equal to 180 degrees.

The angle POR is opposite to the angle PQR, and the angle OPQ is opposite to the angle ORQ.

So we have that:

mOPQ + mORQ = 180°

y + 3y + 8 = 180

4y = 172

y = 43°

So the measure of angle P is 43°.

6 0

2 years ago