Answer:
26%
Step-by-step explanation:
345. 24 - 274 = 71.24
71.24 / 274 =0.26
0.26 * 100 = 26
Answer:
Apothem = 3.3 units
Step-by-step explanation:
A regular nonagon has an area of 102.4 and one side length measures 7 units long. Find the apothem. Round to the nearest tenth, if necessary.
The formula to find the area of a polygon when given Apothem and Side length =
A = 1/2 × a × p
Where p = no of sides of polygon × side length
In the above question,
We are given a polygon = nonagon = 9 sides
Side length = 7 units
p = 9 × 7 = 63 units
Area = 102.4 square units
Apothem = a = ?
We substitute into the formula
102.4 = 1/2 × a × 63
102.4 = 63a/2
Cross Multiply
102.4 × 2 = 63a
Divide both sides by 63
a = 102.4 × 2/63
a = 3.2507936508 units
Approximately to the nearest tenth = 3.3 units
Answer:
The height of the second tree is 150ft.
Step-by-step explanation:
Well you have to set it up as a proportion, so
7 = 210
5 = x
Then you cross multiply, 7 times x is 7x, and 210 times 5 is 1050.
Now you have 7x = 1050
Then you divide 1050 and 7x by 7.
And the final answer is x = 150ft
Answer:
t = -3
Step-by-step explanation:
15 - 6t = -11t
ADD 6t TO BOTH SIDES
15 = -5t
DIVIDE -5 TO BOTH SIDES
t = -3
Do you see how I got t = -3? Do you fully understand it, so if you get another question like this, you won't need help? I hope this helps! :)
D2x/dt2=-g (which we'll approximate as a constant -32ft/s^2)
d2x/dt2=-32 integrating we get:
dx/dt=-32t+C, where C is the initial velocity which we are told is 128ft/s so
dx/dt=-32t+128, integrating again we get:
h(t)=-16t^2+128t+C, where C is the initial height of the object..which we are told is 136 ft so
h(t)=-16t^2+128t+136 if we factor the first two terms we get:
h=-16(t^2-8t)+136