9514 1404 393
Answer:
C. 12cm
Step-by-step explanation:
The equation for the perimeter of the rectangle is ...
P = 2(L+W)
34 = 2(n +m)
Solving for m, we get
m = 17 -n . . . . . . . divide by 2, subtract n
__
The Pythagorean theorem gives the relationship between the sides and the hypotenuse
m^2 +n^2 = (n+1)^2
(17 -n)^2 +n^2 = (n +1)^2 . . . . . . substitute for m
289 -34n +n^2 +n^2 = n^2 +2n +1 . . . . eliminate parentheses
n^2 -36n +288 = 0 . . . . . . . put in standard form
(n -12)(n -24) = 0 . . . . . . . . . factor
n = 12 . . . . . . . . . . n=24 is an extraneous solution here
The value of n is 12 cm.
Answer:
d
Step-by-step explanation:
ddddddddddddddddddddddddddddddddddd4+7+(2.5-2.3)
Answer:
<h2><u><em>
8x -2</em></u></h2>
Step-by-step explanation:
Subtract:
-6x-3 from 2x-5
2x - 5 -(-6x - 3) =
2x - 5 + 6x + 3 =
8x -2
<u>To find the cost of Senior T-shirts needed, </u><em>Multiply (the number of students) by (how much each T-shirt costs).
</em>
350 × 7.2 = $2520
<u>To find the cost of the yearbooks needed,
</u><em>Multiply (the number of students) by (how much each yearbook costs).
</em>
350 × 24.75 = $8662.5
<u>Now, find the TOTAL money the Student government has to pay.
</u><em>Add up the two sums.
</em>
2520 + 8662.5 = $11182.5
<em><u /></em>
<em>SO, the answer is
</em>
<u>$11182.5</u>