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xenn [34]
3 years ago
15

Need help pleaseee!!!

Mathematics
1 answer:
Liono4ka [1.6K]3 years ago
6 0

Answer:

it should be the third option

Step-by-step explanation:

I hope this help

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How do I solve quadratic equations for example,h(t) = – 0.07t2 + 0.007t + 5
g100num [7]

Answer:

  x ≈ -8.402, 8.502

Step-by-step explanation:

The usual methods of solving quadratic equations apply to this one. Any of them can be used: graphing, factoring, completing the square, quadratic formula.

<h3>Solution</h3>

Often, when the coefficients are non-integers and have no obvious relationship to each other, the most convenient method of solution is the quadratic formula. It tells you the solution to ax²+bx+c=0 is ...

  x=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}

Your equation has the coefficients, a = -0.07, b = 0.007, c = 5, so the solutions are ...

  x=\dfrac{-0.007\pm\sqrt{0.007^2-4(-0.07)(5)}}{2(-0.07)}=\dfrac{-0.007\pm\sqrt{1.400049}}{-0.14}\\\\x=0.05\pm\sqrt{\dfrac{200007}{2800}}=0.05\pm\sqrt{71.4310\overline{714285}}\\\\\boxed{x\approx\{-8.40169,\,8.50169\}}

5 0
2 years ago
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It rained 4.2 inches in 12 hours. At this rate,
Lemur [1.5K]
9.45

Have a good day
6 0
3 years ago
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WILL GIVE BRAINILEST FOR CORRECT ANSWER!<br><br> Why does the troposphere vary in thickness?
BaLLatris [955]

Answer:

Near the equator, the troposphere is thicker than at the poles, since the spinning of the Earth tends to shift air towards the equator.

brainliest maybe?

Step-by-step explanation:

8 0
3 years ago
Find the surface area and volume of the following figures.
Oduvanchick [21]

White figure Area = 128\pi

White surface area = appro. 301

Yellow area = 320\pi

Yellow Surface area = approx. 653

Area found with = 2πrh+2πr2

Surface Area found with = 2πrh+2πr2

You need to memorize them for tests

Hope that helped!!! k

4 0
4 years ago
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Pls help!! n33d help
m_a_m_a [10]

Answer:

6 and 12

Explanation:

(b.) is under set A but not set B, meaning that all the elements there are multiples of 3 that are not odd numbers.

all the multiples of 3 that are less than 16: 3 6 9 12 15

all the multiples of 3 that are even numbers: <u>6 12</u>

thus, the elements that go in (b.) are 6 and 12.

i hope this helps! :D

5 0
3 years ago
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