Answer:
? = 30°
Step-by-step explanation:
All angles in a triangle add up to 180°
? + 130° + 20° = 180°
? = 180° - 130° - 20°
? = 30°
Answer:
40 mph
Step-by-step explanation:
40 mins to bike usually, which means he bikes 10 miles. He needs to bike at a minimum of 10 miles in 15 mins, which translates to 40 miles in an hour.
P.S. He is going to surely be late.
Answer:
15*(1+root(3))
Step-by-step explanation:
BD=5, BC=5*root(3), you can find it by using trigonometry.
AC^2=300, AC=10*root(3)
AB^2=225, AB=15.
Perimeter of ABC is AB+BC+CA=15+5*root(3)+10*root(3).
15(1+root(3))
Answer:
Step-by-step explanation:
D
Answer 17: -6/25-29%-3/10-1/3-34.5%-
Explanation: 6/25 is .24 as a decimal, 29 is .29, 3/10 is .30, 1/3 is .33, and 34.5 is .34
Answer 18: 78% is the same as 7.8/10 not 7/8. 7/8 as a percent is 87.5%
