Area of triangle = 1/2 base x height
15.588 = 1/2 * base x 5.196
15.588 = base x 2.598
base = 15.588 / 2.598 = 6
equi center of triangle = 1/3*5.196 = 1.732
radius of circle = Sqrt(1.732^2 + 3^2) =
sqrt (2.999824 +9) =
sqrt(11.999824) = 3.464
rounded to nearest tenth = 3.5 inches
Answer:
B) 4 inches
Step-by-step explanation:
Since ABC is congruent to EFG then AB is congruent to EF, and BC is congruent to FG.
BC = 4 in
FG = 4 in
Answer:
False
Step-by-step explanation:
given that a race car driver tested his car for time from 0 to 60 mph, and in 20 tests obtained an average of 4.85 seconds with a standard deviation of 1.47 seconds.
Sample size n = 20
since population standard deviation is not known, we can use t critical value for finding out the confidence interval
df=19
t critical = 2.045
Margin of error = ![2.045*\frac{s}{\sqrt{n} } \\=2.045*\frac{1.47}{\sqrt{20} } \\=0.6722](https://tex.z-dn.net/?f=2.045%2A%5Cfrac%7Bs%7D%7B%5Csqrt%7Bn%7D%20%7D%20%5C%5C%3D2.045%2A%5Cfrac%7B1.47%7D%7B%5Csqrt%7B20%7D%20%7D%20%5C%5C%3D0.6722)
conidence interval = Mean±Margin of error
= ![(4.85-0.6722, 4.85+0.6722)\\= (4.1778, 5.5222)](https://tex.z-dn.net/?f=%284.85-0.6722%2C%204.85%2B0.6722%29%5C%5C%3D%20%284.1778%2C%205.5222%29)
The given confidence interval is (4.52, 5.18)
Hence the statement is false.
Answer:
y=16x+9
Step-by-step explanation:
y-y1=m(x-x1)
y-9=16(x-0)
y-9=16(x)
y-9=16x
y=16x+9
Answer:2
Step-by-step explanation: