Answer:
Step-by-step explanation:
The Pythagorean Theorem says if you have a right triangle, then relationship between the three sides is the sum of the square of each leg is the hypotenuse squared.
So 
where a and b are legs and c is the hypotenuse.
Plug in your a,b, and c. In this case it is a,6, and 8.
This means we have
Simplify where you can before we begin the solving (the moving around of things to other sides).
Now time for the solving. We are first going to get 
by itself.
To do this, we just need to subtract 36 on both sides giving us:
Now to get rid of the square on a, just square root both sides:
.
Answer:
x = - 4 or x = 20
Step-by-step explanation:
Given R is the midpoint of AM, then
RA = MR , substitute values
x² - 16x = 80 ( subtract 80 from both sides )
x² - 16x - 80 = 0 ← in standard form
(x - 20)(x + 4) = 0 ← in factored form
Equate each factor to zero and solve for x
x - 20 = 0 ⇒ x = 20
x + 4 = 0 ⇒ x = - 4
Answer:
1 = 9-3÷1/3+1
11 = 15-1(12÷4+1)
Step-by-step explanation:
Order of operations: PEMDAS
Parentheses Exponents Multiplication Division Addition Subtraction
9-3÷1/3+1
9-9+1
0+1
<u>=1</u>
15-1(12÷4+1)
15-1(3+1)
15-1(4)
15-4
<u>=11</u>
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<u>:) ur welcome</u>
Answer:
Infinite Solutions
Step-by-step explanation:
x + y = 4
y = -x + 4
x + y = 4
x - x + 4 = 4
0 = 0
Answer:
Step-by-step explanation:
a^2+b^2=400
a^2=400-b^2
a=sqrt(400-b^2) & -sqrt(400-b^2)
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b^2=400-a^2
b=sqrt(400-a^2) & -sqrt(400-a^2)
