<u>the</u><u> </u><u>median</u><u> </u><u>is</u><u> </u><u>19.5</u>
Step-by-step explanation:
To find the median you list all numbers in number order, which you already have and find the center number.
13, 14, 17, 18, 21, 23, 26, 28
/ / / 19.5 / / /
If there are two numbers left you can add then together and divide by 2 to find the median.
18+21=39
39/2= <u>19.5</u>
Answer:
x≤9
Step-by-step explanation:
because im cool
Answer:
x=2
Step-by-step explanation:
We will use the secant-secant Formula:
(whole secant) x (external part) = (whole secant) x (external part)
(1+x+4) * (x+4) = (11+x+1) * (x+1)
Combine like terms
(x+5) (x+4) = (x+12) (x+1)
FOIL
x^2 + 4x+5x + 20 = x^2 + x+ 12x + 12
Combine like terms
x^2 + 9 x + 20 = x^2 + 13 x + 12
Bring everything to the left
x^2 + 9 x + 20- (x^2 + 13 x + 12) = x^2 + 13 x + 12-( x^2 + 13 x + 12)
x^2 + 9 x + 20- (x^2 + 13 x + 12) =0
Distribute the minus sign
x^2 + 9 x + 20- x^2 - 13 x - 12 =0
Combine like terms
-4x +8 = 0
Subtract 8 from each side
-4x+8-8=0-8
-4x=-8
Divide each side by -4
-4x/-4 = -8/-4
x=2
Answer:
$2184
Step-by-step explanation:
The total number of "ratio units" in the ratio fiction : non-fiction is 3+5 = 8. The total number of fiction + non-fiction books is 832, so each ratio units must stand for 832/8 = 104 books.
Then the 3 ratio units of fiction books stand for 3×104 = 312 books. The total spent on fiction books is that number times the average price:
312 × $7 = $2184 . . . . total spent on fiction books
X+4=-14
x=-14-4
x=-18
so basically it’s -18
