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coldgirl [10]
3 years ago
5

Can someone help me find the volume please

Mathematics
1 answer:
umka2103 [35]3 years ago
5 0

Answer:

See below.

Step-by-step explanation:

The figure is a cone. The formula for the volume of a cone is:

V=\frac{1}{3}\pi r^2h

The radius is 4.8 and the height is 2.9. Substitute:

V=\frac{1}{3}\pi (4.8)^2(2.9)

Use a calculator:

V\approx69.97\text{ km}^3

And we're done!

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If the diver in item 2 leaves the board with an initial upward speed of 2.00 m/s, find the diver's speed when striking the water
Taya2010 [7]

Answer:

v_f=9.0774m/s

Step-by-step explanation:

Let's assume

initial velocity =vi

final velocity=vf

initial height =hi

final height =hf

acceleration due to gravity =g

we can use formula

\frac{1}{2}v_i^2+gh_i= \frac{1}{2}v_f^2+gh_f

we are given

v_i=2m/s

h_i=2\times 2=4

h_f=0

g=9.8m/s^2

now, we can plug values

\frac{1}{2}(2)^2+(9.8)(4)= \frac{1}{2}v_f^2+(9.8)(0)

now, we can solve for vf

\frac{1}{2}(2)^2+(9.8)(4)= \frac{1}{2}v_f^2

we get

v_f=9.0774m/s


4 0
3 years ago
HELP ME ONLY SMART PEOPLE CAN ANSWER IT!!!!!!
Nataly [62]
What is the question asking?
4 0
3 years ago
Find the average rate of change for f(x)=-4x² over the interval -4≤x≤-2. Enter your answer as a number. *
Soloha48 [4]

Answer:

45

Step-by-step explanation:

8 0
3 years ago
Identify tan P as a fraction and as a decimal rounded to the nearest hundredth. HELP PLEASE!!
irakobra [83]

tangent=\dfrac{opposite}{adjacent}

We have:

opposite=8.5\\adjacent=16

Substitute:

\large\boxed{\tan P=\dfrac{8.5}{16}\approx0.53}

8 0
3 years ago
Surface area help plz
lana [24]

Answer:

486 mm

Step-by-step explanation:

solve each side on it's own first

First 2 rectangles: 288 mm all together

2 rectangle: 144 mm

Triangles: 54 mm

Then add rectangles and triangles:

288 mm + 144 mm + 54 mm = 486 mm

8 0
3 years ago
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