If it decreases by 80٪, then only 20٪ remains.
15×20٪=15×20/100=15×0.2=3
Answer: 3
Answer:
10.4 to nearest tenth.
Step-by-step explanation:
If we draw lines from the centre of the circle to each vertex of the hexagon we get 6 equilateral triangles of side length 2.
Altitude of each triangle = sqrt(2^2 - 1^2)
= sqrt3.
So the area of 1 triangle = 1/2 * 2 * sqrt3
= sqrt3
Therefore the area of the hexagon = 6 * sqrt3
= 6sqrt3
= 10.3923
1052.64 feet
Step-by-step explanation:
Step 1:
Given,
The projectile is launched upward with a velocity of 256 feet per second
The height of the structure is 35 foot.
Step 2 :
The velocity becomes 0 at the highest point.
The equation of motion is v² = u² +2as
where
v represents the final velocity
u represents the initial velocity
a represents the acceleration due to gravity
s is the height
Step 3:
Here we have
u = 256 feet/sec
v = 0
a = -32.2 feet/sec²
Substituting in the above equation, we have
0 = 256² + 2 *(-32.2) *s
=> -64.4 s = -65536
= > s = 65536/64.4 = 1017.64 feet
Hence the projectile travels 1017.64 feet from the top of the structure. Since the height of the structure is given as 35 feet, the maximum height attained by the projectile is 1017.64 +35 = 1052.64 feet
Answer: -9/-11
You use the equation y2-y1/x2-x1
9-18/-3–8
-9/-11
Answer:
10 gallons of paint are needed
Step-by-step explanation:
If 1/5 gallon is 2/25 of the shed then 1 full gallon is 10/25 because 5 times 2 equals 10. So if 1 gallon is 10/25 then 2 gallons is 20/25 leaving 5/25 left of the first shed. 5 divided by 2 is 2.5, so therefore, it takes 2 gallons and 2.5/5 or 2.5 gallons simplified to paint one shed. Multiply 2.5 by 4 because you need to paint 4 sheds and that gives you 10.
