MATHEMATICS MIDDLE SCHOOL

What is:
$\sqrt{4x^(2) -20x+25$

Answers

Answer 1

Answer:

We are given :

$\sqrt{4x^(2)-20x+25}$

Step 1: factor the part inside square root

The function given inside square root is of quadratic form.

So let us try to factorise it using AC method.

Here A*C = 4*25 = 100

so we have to find factors of 100 that add up to give -20.

the two factors are -10 and -10.

Rewriting the function :

$4x^(2) -20x+25$

= $4x^(2) -10x-10x+25$

= $2x(2x-5) - 5(2x-5)$

= $(2x-5)^(2)$

Step 2:

Now we take square root of the factorised form

$√((2x-5)^2)$

= $2x-5$

Answer : (2x-5)

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If a plane is cruising at an altitude of 30,000feet wants to land at O'Hare, it must begin

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244,330 feet

Step-by-step explanation:

Please refer to the image attached for explanations

Anna said the LCM of 8 and 12 is 4.Explain what Anna's mistake was.Then tell the correct answer.

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20 POINTS! someone? Profit qs...

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a- organic treats and baked chips.

b & c- 100 % 500 = 5 so 200 baked chips x 5 = 1,000. 1,000 baked chips has to be selled to earn $500. I divided $100 by the total amount he was going to get which is $500. I got 5. so 5 x 200 baked chips would be 1,000. thats how much they'll have to sell to get $500.

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Answers

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a c c o m m o d a t i o n

6 is what percent of 48

Answers

Usingthe percent rule, It is found that 6 is 12.5 percent of 48.

How to find how much percent 'a' is of 'b'?

Suppose a number is 'a' Suppose another number is 'b' We want to know how much percent of 'b' is 'a'. Then, it is calculated as:

$(a)/(b) * 100$

(in percentage)

We are asked to find that 6 is what percent of 48.

Let x is the unknown percent.

100% / x% = 48/6

Now multiply both sides of the equation by x

(100/x)x = (48/6)x

Then divide both sides of the equation by (8) to get x

100 = 8x

100/8 = x

12.5 = x

x=12.5

Hence, It is found that 6 is 12.5 percent of 48.

Learn more about percent here:

brainly.com/question/11549320

#SPJ6

12.5%..

100%/x%=48/6
(100/x)*x=(48/6)*x - we multiply both sides of the equation by x
100=8*x - we divide both sides of the equation by (8) to get x
100/8=x
12.5=x
x=12.5

Hope this helped! Please mark me the brainliest!

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