Answer:
12.
m∠ACB = 180° - 58° - 78° = 44°
m∠DCE = 180° - 85° - 60° = 35°
m∠BCD = 180° - 44° - 35° = 101°
13.
Base on the picture, we know that:
x° + 2x° + 3x° = 180°
6x° = 180°
x° = 180° ÷ 6 = 30°
=> m∠K = 2x° = 2 × 30° = 60°
=> m∠L = 3x° = 3 × 30° = 90°
=> m∠KML = x° = 30°
m∠LMN = 60° + 90° = 150°
The answer to your question is B
This is where Pythagorean's Theorem comes into play. a^2+b^2=c^2
So take 4^2 + 7^2 (which is 16+49), and your result is 65. Take the square root of 65 and you get 8.06 (8.1 rounded up)
Answer:
46−5y
Step-by-step explanation:
5(10−y)−4
Use the distributive property to multiply 5 by 10−y.
50−5y−4
Subtract 4 from 50 to get 46.
46−5y
Graph if needed:
Answer:
The maximum height of the ball is 28.2 yards.
Step-by-step explanation:
When we have a quadratic equation in the following format:

The maximum value happens when

The maximum value will be 
In this problem, we have that:

So


The maximum height is:

The maximum height of the ball is 28.2 yards.