The area of a triangle can be found by multiplying the base and the height, and dividing the product by 2.
So, 10*8=80
80/2=40 in^2
Then, the triangle on the left:
10*12=120
120/2=60 in^2
Add up the areas
40 in^2+60 in^2=100 in^2
a) 20(x)=y
b) $120
Let x= number of hours
Let y= Cost of labor
20 will remain constant, what matters is how many hours are being worked. If it's $20 per hour then it's safe to assume 1 hour is 20 dollars worth of labor. Due to it being per hour you have to multiply the rate by however many hours worked to get your final cost.
R = 12/2 = 6 π = 3.14
Circumference of a circle: C = 2πr
2*3.14*6
6.28*6 = 37.68 or 37.69
The last options seems reasonable
Hope that helps!
I dont understand wouldn't twice the number of 9 be 18 or 11?
9+2=11 or 9×2=18
Answer:
8. -385°, 335°
9. -30°, 330°
Step-by-step explanation:
8. θ = -25°
-25-360 = -385°
-25+360 = 335°
9. θ = -390°
-390+360 = -30°
-30+360 = 330°