If segment AB is perpendicular to segment CD, then a right angle (90°) is formed.
7x + 27 = 90
7x = 63
x = 9
It isn't because, it isn't consistent, and it doesn't follow any of the other answer choices. :)
Answer:
B
Step-by-step explanation:
The exponential function has the form 
where a is the starting value or y-intercept. B is the rate of change and x is the variable typically time. In this situation, 
has starting value 4, rate 3 and a -x.
Normally an exponential curve glides left to right growing steeper as it goes. But a -x flips this behavior. The curve starts very steep then gradually slows down. This means only graphs B or D are options. Since only graph B of these two has a y-intercept at 4, graph B is the solution.
9514 1404 393
Answer:
a. Library card
Step-by-step explanation:
A bank is most comfortable with a government-issued picture ID. A library card usually will not provide any assurance that you are who you say you are.
Answer:
28
Step-by-step explanation:
P(red marbles) = 3/7
no. if red marbles = 12
12/x = 3/7
3x = 12 x 7
3x = 84
x = 28
the total number of marbles are 28.
hope it helps .
all the best
