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ruslelena [56]
2 years ago
15

Solve this for Brainliest!See the attachment [Level - GCSE]

Mathematics
2 answers:
dem82 [27]2 years ago
5 0

Answer:

x=3+4\sqrt{3}

Step-by-step explanation:

I agree with the another person's steps.

madreJ [45]2 years ago
3 0

Answer:

x = 3 + 4\sqrt{3}

Step-by-step explanation:

OPQ is a right angle triangle.

<u>Using Pythagoras</u>

x^{2} + (x+5)^{2} = (x+8)^{2}\\x^{2} + x^{2} + 10x +25 = x^{2} + 16x + 64\\x^{2} + x^{2} - x^{2} + 10x - 16x + 25 - 64 = 0\\x^{2} - 6x -39 = 0

<u>Using quadratic formula</u>

<u />x = \frac{-b \± \sqrt{b^{2}-4ac}}{2a}\\x = \frac{-(-6) \± \sqrt{(-6)^{2}-4(1)(-39)}}{2(1)}\\x = \frac{6}{2} \± \frac{\sqrt{192}}{2}\\x = 3 \± \frac{8\sqrt{3}}{2}\\x = 3 \± 4\sqrt{3}

x = 3 + 4\sqrt{3} = 9.928(4s.f.)

             OR

x = 3 - 4\sqrt{3} = -3.928(4s.f.) (Length can't be negative)

∴ x = 3 + 4\sqrt{3}

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Yakvenalex [24]
My suggestion is to look on google, there are plenty of answers and I think it will explain better than me.
7 0
3 years ago
Show work pls !!!!!!!!!!!
-Dominant- [34]

Answer:

36

Step-by-step explanation:

\frac{32}{24}  =  \frac{ab}{27}  \\ ab = 32 \times 27 \div 24 \\ ab = 36

7 0
2 years ago
Zoe is a salesperson who sells computers at an electronics store. She is paid a 1% commission for every computer sale she makes,
ella [17]

<u>Given:</u>

Zoe gets paid a 1% commission for every sale she makes in addition to base pay.

She sold $8,000 worth of computers on a day and made $140 that day.

<u>To find:</u>

A function P(x) representing total pay on a day where she sells x dollars worth of computers.

<u>Solution:</u>

To determine the function P(x) we need to determine how much Zoe's base pay per day is.

One day, she sold $8,000 worth of computers and made $140 that day.

She gets a commission of 1% for $8,000.

1% of $8,000 = \frac{1}{100} (8,000) = 80.

So she got paid $140 out of which $80 was a commission.

So her base pay = 140-80 = 60.

So Zoe's base pay is $60 a day.

P(x) is the sum of her base pay and 1% of the amount of computer sales she makes ($x).

So P(x) = 60 + (0.01)x, where x is the computer sales she makes in dollars. P(x) is represented in dollars.

5 0
3 years ago
PLEASE HELP THIS IS VERY IMPORTANT I WILL GIVE YOU BRAIN THING IF ITS CORRECT (you can use a calculator if you want)
saul85 [17]

Answer:

Step-by-step explanation: if there are 500 pieces of paper and the entire stack is 1.875 inches tall, you devide the total height by 500. I know Deigo is wrong because you can easily reverse check his work by multiplying 0.015 by the total number of papers 500 you will get 7.5 which is not the height of the stack

1.875/500=0.00375

each piece of paper is 0.00375

8 0
2 years ago
15 points Math problem
mote1985 [20]

Answer:

increased=150%=0.75

original price =100%

100%*0.75/150

=$0.5

4 0
3 years ago
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