Ethan made the conjecture 5x - 7 = 13 and x = 4. Which of the following is true to his conjecture? Group of answer choices

True, x = 4

False, x = 5

False, x = -4

False, x = 3

225x²+4=0

225x²=0-4

225x²=-4

x²=-4/225

x=±√-4/225

94

step-by-step explanation:

average the numbers and use a variable to figure out the minimum to get a 90.

(79+94+91+92+x)/5=90

x = 94

6^2 or 36

step-by-step explanation:

6000n

6×1000n

6×10^3 n

so we need 6n need to be a perfect cube

so n has to be 6^2 so that 6n is 6^3

what i'm saying is if you let n be 6^2 you have 6^3×10^3 or 60^3 which is a perfect cube