3n +4n +5n = 240
12n = 240
n = 240/12
n = 20
the length of sides of this triangle will be
3*20=60
4*20=80
5*20=100
bc. 60+80+100 = 140+100=240
hope helped
Answer:
Where is the illustration?
Step-by-step explanation:
Answer:
7.1 meters
Step-by-step explanation:
Use the pythagorean theory:
10 would be the hypotenuse
7 would be one of the legs
and x (or whatever variable you'd like) would be the other leg.
7^2+x^2=10^2
49+x^2=100
subtract 49 from both sides
x^2=51
take the square root on both sides
x is approximately 7.1
An = -4 + (n - 1)(7)
This being in the form of the explicit rule for an arithmetic sequence you can pick out the d and a1.
an = a1 + (n - 1)(d)
d = 7
a1 = -4
Answer:
According to the graph it looks like he makes around 15 dollars a hour
Step-by-step explanation:
