Answer:
21k^13
Step-by-step explanation:
when multiplying two variables that are raised to different powers you multiply the coefficient 7x3=21, then add the powers, 9+4=13 and you get 21k^13
Answer:
L=10.326cm
P=31.30cm
Step-by-step explanation:
A=55=L*W
L=5+W
A = (5+W)(W) = 55
55=W^2 + 5W
0 = W^2 + 5W - 55
use quadratic formula
W = [-5 (+/-) sqrt(25-4(-55))]/2
W= 5.326 cm or W=-20.65, so W=5.326cm
L=5+5.326
=10.326cm
P=2W+2L
P=2(5.326) + 2(10.326)
=31.30 centimeters
Answer:
x = 
Step-by-step explanation:
the ratio of side to hypotenuse in a right triangle is 1 : 
in this problem we can use 'x' in place of 1 and 
in place of to create a proportion like this:
1/x = /
cross-multiply to get:
·x =
x = 
x =
