Answer:
X=8
Step-by-step explanation:
........... ....................... . . ........
Answer:
120
Step-by-step explanation:
1. if x times 80 is 12. you can divide 12 by 80 to get the percent. That is 15 percent.
2. so now you have to find 15 percent of a number = 18. you can solve that by dividing 18 by .15.
3. that is 120
Answer:
if it is an equilateral triangle then it should have the same measurements on each side.
Step-by-step explanation:
An equilateral triangle is equal on all three sides, meaning if one side is 24, the rest will be the same/equal.
Drawing a diagram to represent the information you've given, the only angle we are missing is B. We can find that by subtracting the two we're given from 180:
180 - 90 - 48.8 = 41.2
<em>m</em>∠<em>B</em> = 41.2°.
We can use the angles and the one side we're given to find the remaining sides. Since we do not know the length of the hypotenuse, AB, we cannot use sine or cosine. We must use tangent (the ratio for tangent is opposite/adjacent):

Multiply both sides by 1.6:

This is the length of side AC, which is opposite to angle B.
To find the length of AB we can use the Pythagorean Theorem:

The length of side AC, the hypotenuse, is 4 inches.
Answer:
x^2 +2x +4
x^2 +2x +(2/2)^2-(2/2)^2+4
(x+1)^2-1+4
(x+1)^2+3=0
(x+1)^2= -3
(x+1)= ±√-3
Since a negative number cannot be square rooted,
there are no solutions to this equation.
Hope this helps:)