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3 years ago

Solve the equation A = 2LW + 2LH + 2WH for H.

Mathematics

1 answer:

Fed [463]3 years ago

6 0

H = A - 2LW / 2 (L+W)

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PLEASE HELP FREE 30 POINTS IF YOU ANSWER What is 21 1/4% expressed as a fraction?

rusak2 [61]

Answer:

17/80

Step-by-step explanation:

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3 years ago

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Graph y=2x+1 on a number line<br> Will give brainliest if right.

sdas [7]

This is the awnser too this one

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2 years ago

A function where the independent variable is an exponent. f(x) = ab^x, where a and b are real numbers with a # 0, b>0, and b

Alex787 [66]

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2 years ago

Penelope determined the solutions of the quadratic function by completing the square. F(x) = 4x2 8x 1 –1 = 4x2 8x –1 = 4(x2 2x)

Ymorist [56]

By solving the quadratic equation using completing the square method we got that Penelope should have added 4 to both sides instead of adding 1.

<h3>What is quadratic equation ?</h3>

Any equation of the form $ax^2+bx+c=0$ where x is variable and a, b, and c are any real numbers where a ≠ 0 is called quadratic equation .

Given work of Penelope is

$\begin{aligned}&f(x)=4 x^{2}+8 x+1 \\&-1=4 x^{2}+8 x \\&-1=4\left(x^{2}+2 x\right) \\&-1+1=4\left(x^{2}+2 x+1\right) \\&0=4(x+2)^{2} \\&0=(x+2)^{2} \\&0=x+2 \\&-2=x\end{aligned}$

Now we can see that Penelope determined the solutions of the quadratic function by completing the square. so he must have been done as following

$\begin{aligned}&f(x)=4 x^{2}+8 x+1 \\&-1=4 x^{2}+8 x \\&-1=4\left(x^{2}+2 x\right) \\&-1+4=4\left(x^{2}+2 x+1\right) \\&3=4(x+2)^{2} \\&\frac{3}{4} =x+2)^{2} \\&\frac{\pm\sqrt3}{2} =x+2 \\&\frac{-2\pm\sqrt3}{2} =x\end{aligned}$

By solving the quadratic equation using completing the square method we got that Penelope should have added 4 to both sides instead of adding 1.

To learn more about quadratic equations visit : brainly.com/question/1214333

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1 year ago

The roller on a computer printer makes 2200 revolutions per minute. what is its angular velocity?

-Dominant- [34]

(2200 rev/min) x (360 deg/rev) x ( min/60 sec) = 13,200 degrees per second

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3 years ago