Do 21/5 x 3/5 and you should get 63/25. Divide 63 by 25 and you should get 2 and 13/25.
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If A is wrong then B I think
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you may need to look over that mama i cant help sorry sweetheart
look on jiskha
Step-by-step explanation:
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- top: no solution
- bottom: x = 7
Step-by-step explanation:
I find a graphing calculator very helpful to solving radical equations. It helps avoid extraneous solutions.
<u>top</u>
√(-14x +2) = x -3
-14x +2 = x² -6x +9 . . . . . square both sides
x² +8x +7 = 0 . . . . . . . . . .subtract the left side
Descartes' rule of signs tells you this has no positive real solutions. (There are no sign changes among the coefficients.) The value of the radical will be non-negative, so we must have x-3≥0, or x≥3. Since there are no positive real solutions to the quadratic, there are no values of x≥3 that will satisfy the equation. NO SOLUTION
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<u>bottom</u>
4√(x -3) = 8 . . . . . given
√(x -3) = 2 . . . . . . divide by 4
x -3 = 4 . . . . . . . . . square both sides
x = 7 . . . . . . . . . . . add 3
Answer:
See below
Step-by-step explanation:
Mean: 
Median: 14, 18, 20, 22, 30, 38 -> (20+22)/2 = 21
Mode: No mode as all elements are of equal frequency