A few days ago
what is this! PLEASE answer!?
please show me step by step.
1) negative 4 over seven divided by 16 over 14
x= -2 y= 6 z= 2 over 3
2) 6z – 9
3) -8x to the 3 power + y
4) /x/ – x +y to the second power
thank you all
Top 1 Answers
A few days ago
Favorite Answer
1) If I have interpreted this one correctly, you have
(-4/7) / (16/14)
You can reduce 16/14 to 8/7
= (-4/7) / (8/7)
Flip the second fraction and multiply.
= (-4/7)(7/8) = -1/2
2) 6z – 9.
You are told that z = 2/3, so replace z with 2/3
6(2/3) – 9 = 12/3 – 9 = 4 – 9 = -5
3) -8x^3 + y
You are told x = -2 and y = 6, so plug those in for x and y.
= -8(-2)^3 + 6
= -8(-8) + 6
= 64 + 6 = 70
4) |x| – x + y^2
Once again plug in -2 for x and 6 for y.
|-2| – (-2) + (6)^2
= 2 + 2 + 36
= 40
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