Answer:
30 + 15 = 45
Step-by-step explanation:
Answer:
B is the variation of pythagorus theorem, when we want to remove the cube root we shall introduce the squares in both sides
Answer:
B, 24 (second answer choice)
Step-by-step explanation:
4r+7s=23
r-2s=17
8r+14s=46
7r-14s=119
15r=165
r=11
11-2s=17..........by putting value of r in ii
-2s=17-11
2s= -6
s= -3
3r+3s=3*11+3(-3) you get this by putting values of r and s
=33-9
=24 (B)
He received 4 points for every correct answer and 0 points for every wrong answers (no penality).let x=number of correct answers ,y=number of wrong answers which is given as 10
4x+(0)y=76,4x=76,x=19
the total number of questions is
number of wrong answers + number of correct answers=x+y
x=19,y=10,x+y=19+10=29
Answer:
68% of the population will have a height between 64 and 72 inches
Step-by-step explanation:
According to the Empirical Rule, 68% of the population will have a height within the range of 1 standard deviation of the mean. This means that the range of possible heights for 68% of the population is between 68-4(1)=64 inches and 68+4(1)=72 inches
