Answer:
Step-by-step explanation:
It doesn’t say if x is a diameter or if the extended chord is a hypotenuse. I will assume so; it’s the only solution I can think of.
(x/2)^2 + (x/2 + 2)^2 = (7+5)^2
(x/2)^2 + 2x - 140 = 0
x = -2 ± 2√71
-2 - 2√71 Is an extraneous solution, so x = -2 + 2√71
i = Prt
i = $275 x 0.032 x 1
i = $8.80
She will earn $8.80 in one year
Answer:
B
Step-by-step explanation:
Using Pythagoras' identity in the right triangle.
The square on the hypotenuse is equal to the sum of the squares on the other 2 sides, that is
x² = 13² + 4² = 169 + 16 = 185 ( take the square root of both sides )
x = ≈ 13.6 ( to 1 dec. place ) → B
D what is joeys and martinas current ages
When you go to select the 2 pair to take ...
-- The first one can be any one of the 7 you own. For each if these . . .
-- The second one can be any one of the remaining 6 you own.
-- So there are (7 x 6) = <em>42 ways</em> to choose 2 pairs of jeans.
<u>But</u> . . . . .
When you finish packing the 2 pairs of jeans you chose, it doesn't
matter which one was chosen first and which one was chosen last.
The same jeans could have been chosen for the trip in two
different ways.
Although there are 42 <u>ways</u> to choose two pair, the same two pair
can be chosen in 2 different ways. So there are only 42/2 = 21
different <u>sets</u> of jeans that can end up going on vacation.