Answer:
D. 11.8 cm
Step-by-step explanation:
This triangle is a 30°-60°-90° triangle. There is a shortcut to find the lengths of the sides of a 30°-60°-90° triangle. The longest side is the hypotenuse. The longest side is double the shortest side or, the shortest side is half the longest side. Here the longest side is 5, so the short leg (shortest side) is 2.5
The other shortcut is that the longer leg is the
short leg×sqroot3
Here, the short leg is 2.5, so the long leg is 2.5×sqroot3
Perimeter is all the sides added together.
5 + 2.5+ 2.5×sqrt3
Do the times first.
5 + 2.5 + 4.3
= 11.8
Solution:
Given:
To determine if an ordered pair is a solution, we substitute the x and y-values into the inequality and check if it is true.
Thus,
Therefore, the correct answers are selected as shown below;
Answer:
pls just give me these points my account got hacked and I have -47 points when I had 570
Step-by-step explanation:
Answer:
7n-25 < -39
Step-by-step explanation:
