yes they are and C has no answer in it and can i have branilest
Answer: 
Step-by-step explanation:
Given: Number of cards in a standard deck = 52
If we already chosen a diamond card, then the number of cards left in the deck =52-1=51
The number of spades remains same = 13
Now, the probability that you choose a spade, given that you have already chosen a diamond is given by :-
Hence, the the probability that you choose a spade, given that you have already chosen a diamond 
Answer:
Always
Step-by-step explanation:
The definition of a perpendicular line is that it intersects another at a 90 degree angle. Using this, by verticals, the opposite corner angle must also be 90-degrees, and since one side of a line is 180 degrees, 180-90 = 90, which ensure the rest of the angles will be 90 degrees too.
.875 .88 .98
7/8, 9/9, .98 is your answer from least to greatest!
Answer:
Given
f(x) = 2x+7
g(x) = x^2-4
h(x) = 5x
a. 4h(x)
= 4 * 5x
= 20x
b. f(x) - g(x)
f(x) - g(x) = 2x + 7 - (x^2 - 4)
= 2x+7-x^2+4
=-x^2+2x+7+4
=-x^2+2x+11
c. f(g(x)) = 2(g(x))+7
=2(x^2-4) +7
=2x^2-8+7
=2x^2-1
d. g(x)h(x) = (x^2-4)(5x)
= 5x^3 - 20x
e. g(x) / f(x) = x2 - 4/ 2x + 7
