Solve -5√x=-15 hurry
a. x=9
b. x=7
c. x=-7
d. x=-9

-5 √x = -15

to isolate x you must first divide -5 to both sides. since -5 is being multiplied by √x, division (the opposite of multiplication) will cancel -5 out (in this case it will make -5 one) from the left side and bring it over to the right side.

=

= 3

to solve this you must get rid of the square root. the opposite of square root is square. you must square both sides since what you do to one side you must do to the other.

()² = 3²

a. x = 9

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the answer is b: 18

step-by-step explanation:

use the pythagorean theorem to .

a^2+b^2=c^2

plug 18 for "r"

the 2 legs are 18 and 24

18^2+24^2=c^2

324+576=c^2

900=c^2

c=30

30-12=18

18 is the radius

: )