Answer:
X= 18
Step-by-step explanation:
18-18=0
x=18
Answer:
x = ± 5
Step-by-step explanation:
x² - 25 = 0 ( add 25 to both sides )
x² = 25 ( take square root of both sides )
x = ±
= ± 5
That is x = - 5, x = 5
the length of a leg on a 45-45-90 triangle given the hypotenuse is half the length of the hypotenuse times sqrt(2)
hypotenuse = 10
10/2 =5
so the answer should be 5sqrt(2), which I don't see as a choice
Pupils that chose Band: 60%
Pupils that chose Chorus: 40%
Boys in band: 70%
Boys in chorus: 30%
Probability of choosing boy = Probability of boy in band + Probability of boy in chorus
P = 0.6 x 0.7 + 0.4 x 0.3
P = 0.54
The answer is D.
Answer: D. 40
Step-by-step explanation:
Given: Number of students liked vanilla or chocolate ice cream =
Number of students liked chocolate =
Number of students liked vanilla=
Now, Number of students liked vanilla and chocolate ice cream is given by :-

Number of students liked vanilla and chocolate ice cream= 40