Answer: -2.5f-22
Step-by-step explanation:
you add like terms
He gave away 9 (20 x (3/7) =9) so 21-9=12
Answer:
D and E
Step-by-step explanation:
x² = 15 ( take square root of both sides )
x = ±
that is
x = , x = -
Answer: (B) 53%
Step-by-step explanation:
Given : The probability that registered voters are Democrats P(D)= 0.60
The probability that of registered voters are Republicans P(R)= 100%-60%=40% =0.4
The probability that the registered voters who are Democrats are expected to vote for Candidate A : P(A|D)=0.75
The probability that the registered voters who are Republicans are expected to vote for Candidate P(A|R) = 0.20
Then by using Law of total probability , the probability of the registered voters are expected to vote for Candidate A :-
Hence, the percent of the registered voters are expected to vote for Candidate A=53%
Hence, the correct option is (B).
The volume of a sphere is calculated like so:
v = 4*pi*r^3/3
so half sphere will have half that volume:
v = (<span>4*pi*r^3/3)(1/2)
</span>v = <span>4*pi*r^3/6
</span>plug in the data:
v = <span>4*pi*(10)^3/6
</span>v = 2094.4
that is the volume of the half sphere