Answer:
$4.20
Step-by-step explanation:
Setup a ratio.
5/3=7/x
5x=7(3)
x=21/5
x=4.2 or for this problem 4.20
Answer: 166
Step-by-step explanation:
SA=2lw+2lh+2wh
l=4 w=7 h=5
SA=2(4)(7)+2(4)(5)+2(7)(5)
SA=2(28)+2(20)+2(35)
SA=56+40+70
SA=166
Answer:
Ox=4
Step-by-step explanation:
expand he equation
x²+8x-48=0
using substitution method (of the options)
4 substituted as X eliminates all an results to zero
16+32-48=0
please mark brainliest
I'm afraid your equation is not correctly set up. You need to identify the longest side of this right triangle; it is x. This is the "hypotenuse." Next, identify the lengths of the legs: they are sqrt(13) and 2sqrt(2).
Here's a refresher on the Pythagorean Theorem:
(hypotenuse)^2 = (leg 1)^2 + (leg 2)^2
Applying this Theorem here, [x]^2 = [2sqrt(2)]^2 + [sqrt(13)\^2
Solve this for x^2, and then take the positive root (only) of your result.
