Answer:
5/2
Step-by-step explanation:
The square root of 5 divided by the negative square root of 5 equals -1. 7/2 - 1 = 5/2.
Answer:
40
Step-by-step explanation:
According to the statement we have that both begin at the time.
Gear 1 = 4 turns
Gear 2 = 5 turns
They also do not say that they coincide at turn 20.
If we continue, we can calculate when they coincide again:
1st
20 + 4 = 24
20 + 5 = 25
2nd
24 + 4 = 28
25 + 5 = 30
3rd
28 + 4 = 32
30 + 5 = 35
4th
32 + 4 = 36
35 + 5 = 40
5th
36 + 4 = 40
They therefore coincide again at turn 40.
9514 1404 393
Answer:
D. 2x - 6 = 5x - 45
Step-by-step explanation:
To make the linear equation, we can multiply the given equation by 5(x-3).
Answer: You will need to know that the volume of a cone can be calculated using the formula V = 1/3*Pi*r^2*h, where V is the volume, r is the radius and h is the height. Next substitute the radius and volume into the formula. After this divide the volume by 1/3, r^2 and Pi to give the height of the cone.
H = V(3) / R^2(Pie)
Answer:
Step-by-step explanation:
Angles 3x+5, 75 and x all together make up 180 degrees (review "straight angles").
Thus, 3x + 5 + 75 + x = 180
Simplifying the left side, we get:
4x + 80 = 180, so that 4x = 100, and x = 25.
<KJL = 3(25) + 5 = 80 degrees
<NJM = 25 degrees
<MJL = 75 degrees
