Answer:
Step-by-step explanation:
BC = 20sin(61°) ≅17.5
AC = 20cos(61°) ≅ 9.7
perimeter = 20+17.5+9.7 = 47.2
Answer:

Step-by-step explanation:
Let's solve your inequality step-by-step.
3x+4>−18
Step 1: Subtract 4 from both sides.
3x+4−4>−18−4
3x>−22
Step 2: Divide both sides by 3.
3x
3
>
−22
3
x>
−22
3
Answer:
-13 and -2
Step-by-step explanation:
Answer:
if you are rounding it shouldn't it be ten
The points form a rhombus, so the total perimeter is 4 times the length of one side. The difference in coordinates G and H is ...
... H - G = (2.5-1, 4-6) = (1.5, -2)
Then the length of GH can be found from the Pythagorean theorem to be
... GH = √(1.5² + (-2)²) = √(2.25+4) = √6.25
... GH = 2.5
The perimeter is 4 times that, so is 4×2.5 = 10 units.