Answer:
Speed before applying brakes = 64.8
Step-by-step explanation:
The formula is given as:
Where
s is speed of car, and
d is length of skid marks
It is given that d = 175 ft, so we substitute and find the speed of the car before the brakes were applied.
Rounding to nearest tenth, that is 64.8
Answer:
1. 180
2. x = 31
Step-by-step explanation:
1. the sum of the interior angles of every triangle is always 180
2. using what we know from problem 1, we can create an equation:
x + 10 + 2x - 5 + 2x + 20 = 180
add like terms: 5x + 25 = 180
subtract 25 from both sides: 5x = 155
divide both sides by 5: x = 31
The answer would be -2842 hope i helped good luck :)
Answer: it will take 8 years.
Step-by-step explanation:
We would apply the formula for exponential decay which is expressed as
A = P(1 - r)^ t
Where
A represents the value of the after t years.
t represents the number of years.
P represents the initial value of the car.
r represents rate of decay.
From the information given,
P = 24900 dollars
A = 14200 dollars
r = 6.5% = 6.5/100 = 0.065
Therefore
14200 = 24900(1 - 0.065)^t
14200/24900 = (0.935)^t
0.5701 = (0.935)^t
Taking log of both sides to base 10
Log 0.5701 = log0.935^t = tlog0.935
- 0.22 = t × - 0.0292
t = - 0.22/- 0.0292
t = 8 years
Answer:
3.35 decimeter.
Step-by-step explanation:
We have been given that the first week, the plant's height measured 2.65 Decimeters. During the second week, Tania''s plant grew 0.7 Decimeter.
To find the height of Tania's plant at the end of second we will add 0.7 to 2.65.
Therefore, Tania's plant was 3.35 decimeter tall at the end of 2nd week