3 years ago

Would 45% of 160 be greater than or less than 80?

Mathematics

1 answer:

Nadusha1986 [10]3 years ago

4 0

45% is less than 80. The actual answer is 72. Hope that helps :)

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solve 2x2 12x − 14 = 0 by completing the square. 2(x 6)2 = 26; x = −6 square root 13, x = −6 − square root 132(x 6)2 = 20; x = −

coldgirl [10]

Assuming that the blank space is a plus
2x^2+12x-14=0

isolate x
(2x^2+12x)-14=0
undistribute 2
2(x^2+6x)-14=0
take 1/2 of 6 and square and add negative and positive
2(x^2+6x+9-9)-14=0
factor perfect squrae
2((x+3)^2-9)-14=0
distribute
2(x+3)^2-18-14=0
2(x+3)^2-32=0
2(x+3)^2=32
divide 2
(x+3)^2=16
sqrt
x+3=+/-4
minus 3
x=+/-4-3
x=-7 or 1
2nd to last option

5 0

4 years ago

Add.

atroni [7]

Here is how you are going to add the given polynomials:
3x^4 - 2x^3 -11
12x^4 +x^2 +1 <<< Add these using the normal addition process
----------------------------------
15x^4 - 2x^3 +x^2 -10
Therefore, the answer would be the last option: <span>15x4 – 2x3 + x2 – 10
Hope this is the answer that you are looking for. Thanks for posting!</span>

4 0

3 years ago

Last week Bryan traveled 4 miles by a bus, 18 miles by a train, 11 miles by a van, 33 miles by a car, 7 miles by a bike and walk

kvv77 [185]

Answer:

$\boxed{\text{[2, 33]}}$