The easiest way to do this is to multiple 7 and 3, which gives you 21. Julie will spend $21 on the gifts.
Answer:
7 cm²
Step-by-step explanation:
Area of a triangle = (Base * hight) / 2
A = (2* 7) /2 = 14/ 2 = 7 cm²
Answer:
Option B, 1
Step-by-step explanation:
tan 45° = 1/1 = 1
<span>angle = arcsin(5.5/200) = 1.575 degrees</span>
Answer: 50
Step-by-step explanation: all you have to do to find the perimeter is add all of the sides. I got 50 by adding these numbers.