Answer:
1303 would be about the number of nickels would you would need to make a stack 100 inches tall
Let’s suppose PT is equal to TQ
Therefore the equations will be equal
3x+7=8x-8
3x-8x=-7-8
-5x=-15
x=3
We have found x now we will substitute it into each equation
PT=3(3)+7
PT=9+7
PT=16
Then we will substitute the second equation
TQ=8(3)-8
TQ=24-8
TQ=16
And here is the answer please correct me if I’m wrong
Answer:
0
Step-by-step explanation:
log 1/256 - log 125/4
= log ( 1/256 * 4/125)
= log (1/8000)
log (1/8000) - 3 log 1/20)
Now 3 log 1/20 = log (1/20)^3 = log (1 / 8000) so we get
log (1 / 8000) - log (1 / 8000)
= 0
Answer:
81.85% of the workers spend between 50 and 110 commuting to work
Step-by-step explanation:
We can assume that the distribution is Normal (or approximately Normal) because we know that it is symmetric and mound-shaped.
We call X the time spend from one worker; X has distribution N(μ = 70, σ = 20). In order to make computations, we take W, the standarization of X, whose distribution is N(0,1)

The values of the cummulative distribution function of the standard normal, which we denote
, are tabulated. You can find those values in the attached file.

Using the symmetry of the Normal density function, we have that
. Hece,

The probability for a worker to spend that time commuting is 0.8185. We conclude that 81.85% of the workers spend between 50 and 110 commuting to work.
Answer:
interior angle of a heptagon = 900 degrees
900 = 4x + (3x + 60)
840 = 7x
840/7 = 120
X = 120
120 X 4 = 480
120 X 3 = 360
480 + 360 + 60 = 900
4 angles = 120 degrees each
3 angles = 140 degrees each