D. All other choices are wrong
To find the amount of "tens" in a number, divide it by 10
8,000÷10=100
Answer: There are 800 tens
Answer:
option 3
Step-by-step explanation:
hope this helps :)
(2x + 4).(4x - 2a) - (3y + 4).(6y - 2a)
2x.4x - 2x.2a + 4.4x - 4.2a - (3y.6y - 3y.2a + 4.6y - 4.2a)
8x² - 4xa + 16x - 8a - (18y² - 6ya + 24y - 8a)
8x² - 4xa + 16x - 8a - 18y² + 6ya - 24y + 8a
8x² - 18y² + 16x - 24y - 4xa + 6ya + 8a - 8a
8x² - 18y² + 16x - 24y - 4xa + 6ya
Answer:
x = square root of 23 i, x = - square root 23 i,
Step-by-step explanation: x^2+12=-11
Subtract 12 from both sides
x^2+12 - 12 = -11 - 12
Simplify
x^2 = -23
For x^2 = f(a) the solution are x = square root of F(a), - square root of f(a)
x = square root of - 23, x = - square root of -23
Simplify square root of -23: square root of 23
square root of 24
Apply radical rule: sqaure root of -a = square root of -1 square root of a
square root of -23 = square root of -1 square root of 23
= square root of -1 square root of 23
Apply imaginary number rule: square root of -1 = i
= square root of 23i
Simplify - square root of -23 square root of 23
-square root of -23
Simplify square root of-23 square root of 23i
= - square root of23i
x = square root of 23i, x = - square root of 23i
