This shape is a 30-60-90 triangle, which means that the angles of the triangle are each 30°, 60° and 90°. Given that the measures of the angles of the triangle are known, as well as one side, we can find the measures of all the other sides (example attached). A 30-60-90 triangle is special because of the relationship of its sides. The hypotenuse (directly across from the 90° angle) is equal to twice the length (2x) of the shorter leg, in this case labeled 'x' and directly across from the 30° angle. The longer leg, across from the 60° angle, is equal to multiplying the shorter leg (x) by √3 or x√3.

Since the measure of the hypotenuse is given at 18, we can set the expression of that side equal to 18 and solve for x:

2x = 18 or x = 9

5 0

2 years ago

What type of function is y=7(5/4)^x

erica [24]

Answer:

It is a equation

Step-by-step explanation:

Because it has an equal sign if it does not it will be a expression.

4 0

3 years ago

Lisa tapes three 7inch by 9inch pieces of construction paper together to make a happy birthday sign for her mom. She uses a piec

USPshnik [31]

Depends on how the papers are connected. if they are connected with the 7cm side joining each other, use solution one. if they are connected with the 9cm side joining each other, use solution two.

perimeter of edges of sign= 2 [(9x3)+7]
= 68 inches

left over= 144-68
= 76 inches

OR

perimeter of edges of sign= 2[(7x3)+9]
= 60 inches

left over= 144-60
= 84 inches

7 0

2 years ago

I need help I don’t understand

Arte-miy333 [17]

Use mathpapa.com or cymath.com

7 0

3 years ago