Try this:
2(x+5)=17
By distributing 2 to x and five you're left with 2x+10=17
Subtract 10 from both sides to equal 2x=7
Divide 7 for x=3.5
Might Want to draw this and Its very long but Hope it helped :)
Answer:
The sides are all of the same length - let's say a. The angles are all the same too, and since the angles must add up to 180∘, we conclude that the three angles in the equilateral triangle are equal to 180∘/3=60∘.
Now we do something sneaky. We draw a line all the way down from the top vertex of the triangle to the midpoint of the bottom line.
This new line cuts our equilateral triangle in half. What are the angles in one half?
The angle at the bottom is 90∘.
One of the angles is the same as one of the angles in the original equilateral triangle, so it is 60∘.
So the third angle must be 180∘−90∘−60∘=30∘.
Now the hypotenuse of this new triangle is a, the side length of the equilateral triangle. And the length of the shortest side is a/2, since the line we drew cut the bottom line in half.
Answer:
3/2y-3/8z
Step-by-step explanation:
-3/8(-4y)-3/8z
To find the tan x use the following formula
tan x = (sin x)/(cos x)
tan x = (1/2)/(sqrt (3)/2)
tan x = 1/sqrt (3) = sqrt (3)/3 or E
Answer:
<h3>The height of the pyramid is 7 feet</h3>
Step-by-step explanation:
Let h represent the height of the pyramid
Volume of a pyramid is given by
Volume of pyramid = 84ft³
To find the height of the pyramid we must first find the area of the base
Since it's a square pyramid it's base is a square
Area of a square = l²
where l is the length of one side
l = 6feet
Area = 6² = 36ft²
So we have
84 = 12h
Divide both sides by 12
<h3>h = 7 feet</h3>
The height of the pyramid is 7 feet
Hope this helps you
