Answer:
28.246
Step-by-step explanation:
hihi. So you can use the Pythagorean theorem to find any missing sides to a triangle. The equation goes like this: a^2 + b^2 = c^2, where a a and b are the lengths of the 2 bases of the triangle and c is the length of the hypothenuse/longest side to the triangle. Since you know the length of the hypothenuse and of one of the bases you can solve for the last base using the equation which gets you ~8.246. Now, adding that to the other side lengths gets you 28.246 as an approximate perimeter to 3 sig figs
There could have been one Grandma(One mom), one Mom(Another mom, and a daughter), and one Daughter(another daughter).
I think it is F, but I am a not sure.
Answer:
4 hours 7 minutes
Step-by-step explanation:
Since Trevon takes 10 hours to clean the attic, he cleans 1/10, 10% or .1 of the attic per hour. Since Cody takes 7 hours to clean the attic, he cleans 1/7, 14.3% or .143 of the attic per hour.
Together, that means they clean .1 + .143 of the attic per hour. That's an hourly rate of:
.1 + .143 = .243
The portion of the attic they clean in x hours is .243x. We'd like to know how long it will take them to clean 100% or 1 of the attic. So:
.243x = 1 Divide each side by .243
x = 1/.243
x ≈ 4.115
Let's convert .115 to minutes by multiplying by 60
.115 * 60 = 6.9 round to 7 for 7 minutes
It will take them around 4 hours 7 minutes to clean the attic.
<span>(1) What are the values of the sample proportion of people who live within 1 mile of a hazardous waste site and its standard error?
Solution:
pˆ = 0.3, and standard error p
0.3 Ă— 0.7/450 = 0.0216.
(2) What are the values of the sample proportion of people who live outside of the 1 mile radius around a hazardous waste site and its standard error?
Solution:
pˆ = 0.7, and standard error p
0.3 Ă— 0.7/450 = 0.0216.</span>
