(10x^4-2x 7)-(6x^4+2x^3-4x^2-1)
1 answer:
Hello from MrBillDoesMath!
Answer:
4x^4 - 2x^3 + 4x^2 -2x + ( +\-7 + 1)
See Discussion for meaning of "+\-" symbol above
Discussion:
** The first polynomial (10x^4-2x 7) is missing an operand between 2x and 7. I have indicated it below by using (+\_), meaning I don't know what you wanted.**
(10x^4-2x +\- 7)-(6x^4+2x^3-4x^2-1) => combine like terms
(10x^4 - 6x^4) - (2x^3) - (-4x^2) + (-2x) + ( +\-7 +1) =
4x^4 - 2x^3 + 4x^2 -2x + ( +\-7 + 1)
Thank you,
MrB
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For 12 divided by 587, I got 0.02044293.
Answer:
boys = 250
girls = 150
Step-by-step explanation:
5g = 3b eq. 1
g + b = 400 eq. 2
g = girls
b = boys
From the eq. 2
g = 400 - b
Replacing this last eq. on eq. 1:
5(400-b) = 3b
5*400 + 5*-b = 3b
2000 - 5b = 3b
2000 = 3b + 5b
2000 = 8b
2000/8 = b
250 = b
From eq. 2
g + 250 = 400
g = 400 - 250
g = 150
Check:
from eq. 1
5*150 = 3*250 = 750
Answer:
B
Step-by-step explanation:
A is not a function because the same x value is repeated twice with different y values. The same goes for C and D so the answer is C.
Divide 7 by 32 and go from there
