Answer:
B=62, a=3.7, C=7.9
Step-by-step explanation:
Answer:
x = 121
Step-by-step explanation:
Let the measure of the altitude of the given triangle be h units.
By geometric mean theorem:
7x-21 + 3y -xy
I think that is what you're asking for
Answer:
60
Step-by-step explanation:
Im too lazy
180-117=63
3y+12+63+4y=180
7y+75=180
7y=105
y=15
4(15)=60
Can i get brainliest?
Answer:
The mean of the combined group of 30 students is equal to 56.67
Step-by-step explanation:
Let
x ----> The sum of the notes of the 20 papers
y ----> The sum of the notes of the 10 papers
we know that
60=x/20 -----> x=60*20=1,200
50=y/10 -----> y=50*10=500
The mean of the combined group of 30 students is equal to
(x+y)/30
substitute
(1,200+500)/30=56.67