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svlad2 [7]
3 years ago
9

Can you help me for all three plzzzz

Mathematics
1 answer:
zimovet [89]3 years ago
3 0
I hope this helps you!!

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Caroline knows the height and the required volume of a cone-shaped vase she’s designing. Which formula can she use to determine
timama [110]

Answer:

Option B. r=\sqrt{\frac{3V}{\pi h}}

Step-by-step explanation:

we know that

The volume of a cone is equal to

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

Solve for the radius r

That means-----> isolate the variable r

Multiply by 3 both sides

3V=\pi r^{2} h

Divide by (\pi h) both sides

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

square root both sides

r=\sqrt{\frac{3V}{\pi h}}

4 0
3 years ago
The gradient of the curve is given by the equation and a point on the curve is also given. Find the equation of the curve with w
IgorC [24]

Answer:

4 x^(3/2)         + 5x -32

Step-by-step explanation:

This problem involves definite integration (anti-derivatives).

If dy/dx = 6x^(1/2) - 5, then dy = 6x^(1/2)dx - 5dx.

                                        (1/2) + 1

This integrates to y = 6x                        

                                   ----------------                      

                                      (1/2) + 1             x^(3/2)

                                                      =  6 ------------ + C

                                                                 3/2

             

or:        4 x^(3/2) + C

and the ∫5dx term integrates to 5x + C.

The overall integral is:  

4 x^(3/2) + C + 5x + C. better expressed with just one C:

4 x^(3/2)         + 5x + C

We are told that the curve represented by  this function goes thru (4, 20).

This means that when x = 4, y = 20, and this info enables us to find the value of the constant of integration C:

20 = 4 · 4^(3/2)         + 5·4 + C, or:

20  =  4  (8)           + 20 + C

Then 0 = 32 + C, and so C = -32.

The equation of the curve is thus   4 x^(3/2)         + 5x -32

                   

           

                                      (1/2 + 1)

7 0
3 years ago
HELPPP ON GEOMETRY PLZZ!!! No links i will report.
vovangra [49]

Answer:

J) is multiplied by 4

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Which number is farthest from 1 on the number line?
Marrrta [24]
The answer is 1.5

1.2=1.0
1.3=1.1
1.4=1.2
1.5=1.2
7 0
3 years ago
Read 2 more answers
PLSSSSS HELPPPPP 20 POINTSSS EASY MATHHHH
yan [13]

Answer:

<h2><u>All of the above EXCEPT pentagons</u></h2>

Step-by-step explanation:

Well I already explained in the comments and I am pretty sure you already answered the question but for the points :)

Good day!

5 0
3 years ago
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