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alexandr402 [8]
3 years ago
15

Am i right ? i just want make sure

Mathematics
1 answer:
Alik [6]3 years ago
7 0

Answer:

Step-by-step explanation:

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Solve using the quadratic frmula 2x^2-5x=3
Mnenie [13.5K]

2x2−5x=3

I think the first step would be to

Subtract 3 from both sides

2x2−5x−3=3−3

2x2−5x−3=0

Then

For this equation: a=2, b=-5, c=-3

2x2+−5x+−3=0

Lastly you would

Use quadratic formula with a=2, b=-5, c=-3

I think your answer would then have to be...

x = 3 or x =  −1 /2

4 0
3 years ago
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A student found a strong correlation between the age of people who run marathons and their marathon time. Can the student say th
DENIUS [597]
Elite marathon race times improved from 5 to ~20 years, remained linear between ~20 and ~35 years, and started to increase at the age of ~35 years in a curvilinear manner with increasing age in both women and men. The sex difference in elite marathon race time increased non-linearly and was lowest at the age of ~49 years.
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3 years ago
What happens to the volume of a cylinder when the radius is doubled?
wlad13 [49]
When the radius is doubled, the volume of a cylinder quadruple

5 0
3 years ago
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Simplify the following polynomial
Amiraneli [1.4K]

Answer:

-3x^4 - 13x^3 + 14x - 7

Step-by-step explanation:

(5x^4 – 9x^3 + 7x – 1) + (-8x^4 + 4x^2 – 3x + 2) - (-4x^3 + 5x - 1)(2x – 7)

simplify multiplied terms

(-4x^3 + 5x - 1)(2x – 7)

(-4x^3+10x-8)

group like terms together

(5x^4-8x^4) + (-9x^3-4x^3) + (7x-3x+10x) + (-1+2-8)

simplify grouped terms

-3x^4 - 13x^3 + 14x - 7

3 0
3 years ago
Solve and type in 'ab' 8×a=32,a+26=b+1,a<20<b
Whitepunk [10]
8*a=32
32:8=a
4=a

4+26=b

30=b

3 0
3 years ago
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