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PolarNik [594]
4 years ago
8

Solve y = x^2 - 18 for x.

Mathematics
1 answer:
viva [34]4 years ago
3 0

Answer:

x = √y+18

Step-by-step explanation:

Given

y = x^2-18

In order to solve the equation for x, we have to isolate x on one side of the equation

So,

y+18 = x^2 -18 + 18\\y + 18 = x^2

We have to find the value for x, so taking square root on both sides

\sqrt{x^2} = \sqrt{y+18}

Solving the squre root

x = x = \sqrt{y + 18}

Hence,

x = √y+18 is the correct answer ..

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How do you do monomial
iris [78.8K]

Answer:

Multiplying a Monomial by a Monomial. When multiplying a monomial by a monomial, we multiply the coefficients together and tack on the variables at the end (usually in alphabetical order). When multiplying two of the same variables, add the exponents. Remember that the exponent on x is an invisible 1.

Step-by-step explanation:

Hope this helps


4 0
3 years ago
How do I solve this? Helppp​
Bingel [31]

Answer:

-5 ,0,5

Step-by-step explanation:

x^2 ≤ 25

Take the square root of each side

sqrt(x^2) ≤ sqrt(25)    

sqrt (25) is +5   and -5

x ≤ 5   and x ≥ -5

-5 ≤x ≤ 5

The choices are -5 ,0,5

5 0
3 years ago
D=-0.5t + 7<br>I REALLY NEED HELP ASAP I WILL MARK BRAINLIEST TYTY​
serg [7]

Answer:

7.5t

Step-by-step explanation:

6 0
3 years ago
Your class is learning to tie knots. Each student needs a piece of rope that is 3/6 yard long how many yards of rope are needed
artcher [175]
<h3><u>Answer:</u></h3>
  • The class will need 8 yards.
<h3><u>Step-by-step explanation:</u></h3>
  • 1 student = 3/6 rope
  • => 16 students = 3/6 x 16
  • => 48/6 = 16 students
  • => 8 yards = 16 students.
<h3><u>Conclusion:</u></h3>

Therefore, the class will need 8 yards.

Hoped this helped.

-BrainiacUser1357-

3 0
3 years ago
What is the value of x?<br><br><br><br> Enter your answer in the box.<br><br> x =
Julli [10]
Angle sum of a triangle = 180°

Therefore:

Equation No. 1 -
2 ( 2x - 4 ) + 5y = 180°
2 ( 2x - 4 ) + 5 [ ( 2x - 4 ) / 5 ] = 180
4x - 8 + [ 5 ( 2x - 4 ) / 5 ] = 180
4x - 8 + 2x - 4 = 180
4x + 2x = 180 + 8 + 4
6x = 192
x = 192 / 6
x = 32°

Equation No. 2 -
5y = 2x - 4
y = ( 2x - 4 ) / 5

ANSWER:
x = 32°
5 0
3 years ago
Read 2 more answers
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