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OLEGan [10]
2 years ago
12

A ball is thrown from an initial height of

Mathematics
1 answer:
Eduardwww [97]2 years ago
8 0

Answer:

Step-by-step explanation:

If we are looking for the times that the ball was 11 meters off the ground, we sub in 11 for the height on the left and solve for t:

11=-5t^2+30t+1 and

0=-5t^2+30t-10 and factor this however it is you are factoring in class to solve for t to get

t = .35 seconds and t = 5.6 seconds

Because the ball reaches this point in its way up and then passes it again on its way down, the ball will have 2 times at this height.

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I need to show .y work for 132 × 3​
Lelechka [254]

Answer:

132 × 3 = 396

Step-by-step explanation:

132 3 × 2 = 6

<u>×</u><u> </u><u> </u><u>3</u> 3 × 3 = 9

396 3 × 1 = 3

7 0
3 years ago
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C
Zolol [24]

The  value of this expression when =-2 and x=-1 is: 3.

<h3>Value of the expression</h3>

Given equation:

-2 and x=-1

Solving the value of the given equation

-2 and x=-1

Hence:

=-(-1)+2

=1+2

=3

Therefore the value of this expression when =-2 and x=-1 is: 3.

Learn more about Value of the expression here:

brainly.com/question/912391

brainly.com/question/625174

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6 0
2 years ago
Evaluate the integral of the quotient of the cosine of x and the square root of the quantity 1 plus sine x, dx.
VMariaS [17]

Answer:

∫((cos(x)*dx)/(√(1+sin(x)))) = 2√(1 + sin(x)) + c.

Step-by-step explanation:

In order to solve this question, it is important to notice that the derivative of the expression (1 + sin(x)) is present in the numerator, which is cos(x). This means that the question can be solved using the u-substitution method.

Let u = 1 + sin(x).

This means du/dx = cos(x). This implies dx = du/cos(x).

Substitute u = 1 + sin(x) and dx = du/cos(x) in the integral.

∫((cos(x)*dx)/(√(1+sin(x)))) = ∫((cos(x)*du)/(cos(x)*√(u))) = ∫((du)/(√(u)))

= ∫(u^(-1/2) * du). Integrating:

(u^(-1/2+1))/(-1/2+1) + c = (u^(1/2))/(1/2) + c = 2u^(1/2) + c = 2√u + c.

Put u = 1 + sin(x). Therefore, 2√(1 + sin(x)) + c. Therefore:

∫((cos(x)*dx)/(√(1+sin(x)))) = 2√(1 + sin(x)) + c!!!

4 0
3 years ago
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Help me please, lots of points
enot [183]
6/10=0.60
8.75+0.60
=9.35
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3 years ago
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Find the product.<br><br> (a 2 b 3)4
mel-nik [20]
 <span>Is that supposed to be: 

(a²b³)⁴ 

If so, the exponent of an exponent is the product of the exponents, so we end up with: 

a⁸b¹²</span>
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3 years ago
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