Answer:
60°
Step-by-step explanation:
angle A +angle B +angle C = 180
30° +B+90°= 180
120°+B=180°
B=180°-120°
B=60°
Answer:
- 32.2
- -32.61
Step-by-step explanation:
Answer:
x = 7
Step-by-step explanation:
Let
x = the unknown number
double it :
2x
add 11:
2x + 11
I get 25:
The equation is
2x + 11 = 25
2x = 25 - 12
2x = 14
Divide both sides by 2
x = 14/2
x = 7
Answer: The flagpole is 12.1 feet high.
Step-by-step explanation:
We can solve this by using a ratio:
Actual height to shadow length. The fractions must have the same equivalent values.
5.5/10 = x/22 Cross multiply the numerator on the left times the denominator on the right, and the denominator on the left by the numerator on the right:
5.5(22) = 10x
121 = 10x Divide both sides by 10. (10s "cancel" on the right)
12.1 = x
The flagpole is 12.1 feet high.
Answer:c
Step-by-step explanation: