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Sidana [21]
4 years ago
13

What is the value of X

Mathematics
2 answers:
IceJOKER [234]4 years ago
6 0
We know these two angles make a right angle.

Therefore, we can right the equation:
90 = 22 + 4x

We can then solve this algebraically...
90 = 22 + 4x
[Subtract 22 from both sides]
68 = 4x
[Divide both sides by four]
17 = x

Therefore, x = 17
melomori [17]4 years ago
3 0
90-22=68 then you divide that by 4 and your answer will be 17
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the length of a rectangle is 4 meters less than twice its width. The area of the rectangle is 70m2. Find the dimensions of the r
Elina [12.6K]
If the width = x m then the length =  2x - 4 m

Area =  x(2x - 4) = 70

2x^2 - 4x - 70 = 0

2x^2 - 14x + 10x - 70 = 0

2x(x - 7) + 10(x - 7) = 0

(2x + 10)(x - 7) = 0
x = 7 or -5  ( ignore negative)
width = 7 m and length = 10 m  answer 



7 0
3 years ago
Formula for the perimeter of a rectangle P=2a + 2b, for b
bagirrra123 [75]
My answer is: P/2a = 2b
if that's wrong then im sorry I got it by dividing 2a on each side so 2b would be alone
4 0
4 years ago
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Draw a quadratic function below with zeros at -3 and 5 that is also concave up.
tia_tia [17]

Hello from MrBillDoesMath!

Answer:

x^2 - 2 x - 15

Discussion:

( x - (-3)) * ( x- 5) =

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x^2 - 2 x - 15

It is a concave upward curve (looks like a "u") as the x^2 term causes the function to grow larger as x approaches +\- infinity.

Thank you,

MrB

8 0
4 years ago
When solving the equation 1/4x= 6+1/3x, what is the value in front of the x after getting the variable to the left side of the e
mafiozo [28]

Answer:

-1/12

Step-by-step explanation:

3 0
3 years ago
Percent of 200 miles is 150 miles
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I really dont understand what your asking, but probably 75%
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3 years ago
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