Answer:
- <em>To solve these first swap x and y, solve for y and name it inverse function</em>
3. <u>y = -8x + 2</u>
- x = -8y + 2
- 8y = -x + 2
- y = -x/8 + 2/8
- y = -(18)x + 1/4
f⁻¹(x) = -(18)x + 1/4
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4.<u> y = (2/3)x - 5</u>
- x = (2/3)y - 5
- (2/3)y = x + 5
- y = (3/2)x + (3/2)5
- y = 1.5x + 7.5
f⁻¹(x) = 1.5x + 7.5
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5. <u>f(x) = 2x² - 6</u>
- x = 2y² - 6
- 2y² = x + 6
- y² = 1/2x + 3
- y =
![\sqrt{1/2x + 3}](https://tex.z-dn.net/?f=%5Csqrt%7B1%2F2x%20%2B%203%7D)
f⁻¹(x) = ![\sqrt{1/2x + 3}](https://tex.z-dn.net/?f=%5Csqrt%7B1%2F2x%20%2B%203%7D)
-----------------------------------------
6. <u>y = (x - 3)²</u>
- x = (y - 3)²
= y - 3- y = 3 +
![\sqrt{x}](https://tex.z-dn.net/?f=%5Csqrt%7Bx%7D)
f⁻¹(x) = 3 + ![\sqrt{x}](https://tex.z-dn.net/?f=%5Csqrt%7Bx%7D)
Answer:
28
Step-by-step explanation:
Since, Sum of triangle is equal to 180°
180 = 2x + 50 + 3x - 10
180 = 5x + 40
180 - 40 = 5x
140 = 5x
140/5 = x
28 = x
Answer:
50 or 125
Step-by-step explanation:
if u want E=MC then it would be 20 ×2.5=50
OR
if u what to find E=MC² then it would be 20×2.5×2.5 =125
ACCORDING TO ME THIS SHOULD BE THE ANSWER, BUT NOT QUITE SURE ABOUT THIS.
Since 470/6 = 78.333 it would take you 78.333 days to work 470 hours.