Answer: 
The expression is in the form 
where a = -25 and b = 18
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Work Shown:
Let 
and then square both sides
We'll use both x and x^2 later on.
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The denominator is in the form 4+x. We'll multiply top and bottom by 4-x to then use the difference of squares rule. This will allow us to eliminate the square root in the denominator.
Therefore,
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Checking the answer:
Use a calculator to find that,
We get the same decimal approximation, which helps confirm the correct answer.
Or you could use the idea that if M = N, then M-N = 0 to subtract the original expression M and the final result N. You should get 0 or very close to it.
Step-by-step explanation:
Statement:
"If two sides of a triangle are congruent, then the angles opposite of them are congruent"
Converse:
If two angles of a triangle are congruent, then the two sides opposite them are congruent.
The converse of the statement is true and can be proven true using a two-column proof. In fact it is a theorem.
Answer:
My answer is 27.48 minutes
Step-by-step explanation: what i did to get this answer is i subtracted my numbers and add so i added $30 + 6 ( don't have to put the dollar sign when you add your numbers together) and i got 36 as my answer and then after i did that i subtracted $27.84 - 36 and got 27.48 as my answer.
hope it helps you
Lets say justin's age is 'j' and his father's age is 'f'
j = f / 2 - 10
12 = f / 2 - 10
f = j + 10 x 2
f = 12 + 10 = 22 x 2 = 44
Hope this helps :)
Line EB is the mid segment of the triangle
EB and DC are parallel if angle EBA is equal to angle DCB
so
4x - 3 = 3x + 9 now solve for x
-3x -3x
x -3 = + 9
-3 -3
x = 12
Now I know x and 3x +9, so sub in for x
3(8) + 9 = 32 + 9 = 41
now we know angle EBA
and angle EBA and angle EBC are a linear pair meaning when I add them together they equal 180
so
angle EBA + angle EBC = 180
41 + 14y - 5 = 180 now solve for y
36 + 14y = 180
-36 -36
14y = 144
/14 /14
y = 10.28
