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asambeis [7]
3 years ago
5

Help!! Will mark brainliest

Mathematics
2 answers:
andrezito [222]3 years ago
7 0

Answer:

-4.9t^2 + 160t + 290 = 0

t = [-160 +- sqrt(160^2 - 4*-4.9*290)]/(2*-4.9)

Positive Solution::

t = 34.37 seconds

Step-by-step explanation:

Monica [59]3 years ago
5 0

Answer:

Jhgfchjjgyyhjj

Step-by-step explanation:hhgdfhhjjhg

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Anyone help?<br><br> What is the derivative of x^2 + 2x - 4?<br><br> Thanks!
castortr0y [4]
Let's take the derivative of each term one by 1

x^2
Apply the power rule for derivatives.
2x^(2-1) = 2x
You get 2x.

2x
Apply the power rule (x^1) and the constant multiple rule.
2 * x^(1-1) = 2 * x^0 = 2
You get 2.

-4
The derivative of a constant is 0.

Put that together and you get 2x + 2

Have an awesome day! :)
4 0
3 years ago
Read 2 more answers
Round the following to the nearest hundreds. 23457,45289,2458​
djverab [1.8K]

I think it's 23500, 45300, 2500

4 0
3 years ago
Read 2 more answers
#7-9 please help with an explanation,, will mark brainliest
Mandarinka [93]

Answers:

<h2>7. 12</h2><h2>8. -√18</h2><h2>9. √220</h2>

Step-by-step explanation:

To find out which is greater, we must eliminate the radical symbol.

#7

\sqrt{88} = 9.38083151965

9.4 < 12

#8

-\sqrt{18} = -4.24264068712

-4.2 > -6

#9

\sqrt{220} = 14.8323969742

14.5 < 14.8

I'm always happy to help :)

8 0
3 years ago
4(10b-4) <br><br> Explain please
Angelina_Jolie [31]
<h3>Answer:   40b - 16</h3>

Work Shown:

4(10b-4)

4*10b - 4*4

40b - 16

I multiplied the outer term 4 by each term inside. Refer to the distribution property (aka distributive property).

4 0
2 years ago
Read 2 more answers
Water weighs about 8.34 pounds per gallon
Svetach [21]
1pound is equal to 16 ounces i get this thru conversion table so you will multiply 8.34 pound to 16 so the answer is 133.44 ounces
7 0
3 years ago
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