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3 years ago

HELPP PLSS!!!!!!! Find the volume of the following objects.

Mathematics

2 answers:

olga_2 [115]3 years ago

7 0

Answer:

First cone: 29.32

Steps:

1. 3.14(2^2)7/3

2. 3.14(4)7/3

3. 12.56(7/3)

4. 12.56(2.3

5. 29.32

Second cone: 1526.81

Divide 18 in half and so same steps as above to get the answer! :)

Have a great day!!

Please rate and mark brainliest!!

bulgar [2K]3 years ago

6 0

Answer:

Cone 1 = 29.32mi || Cone 2 = 1526.81

Step-by-step explanation:

Step 1) Apply formula (volume of cone)

V= 1/3 * π * r^2 * h [OR] V= π * r^2 * h/3

Step 2) Insert numbers. (cone 1)

V= π * 2^2 * 7/3

Step 3) Insert numbers. (cone 2)

V= π * 9^2 * 18/3 (r=9 because r=1/2 base diameter of circle, 18/2=9)

Step 4) Plug and solve.

Step 5) CHECK YOUR ANSWER BEFORE SUBMISSION. Do it a few times just to make sure it checks out, and then continue!

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Find the distance between these points. C(0, 4), T(-6, -3) √(37) √(109) √(85)

finlep [7]

Answer:

The answer is

Step-by-step explanation:

The distance between two points can be found by using the formula

where

(x1 , y1) and (x2 , y2) are the points

From the question the points are

C(0, 4), T(-6, -3)

The distance between them is

We have the final answer as

Hope this helps you

6 0

3 years ago

Write the real form of each complex equation.

Lerok [7]

Answer:

Step-by-step explanation:

Given

(a) $z=4\cos (\theta )+9i\sin (\theta )$

$Re(z)=4\cos \theta$

$Im(z)=9\sin \theta$

(b) $z=6\cos (\theta )+i\sin (\theta )$

$Re(z)=6\cos \theta$

$Im(z)=\sin \theta$

$Re(z)=\sqrt{5}\cos (\theta )$

$Im(z)=\sqrt{10}\sin (\theta )$

(d) $z=5-2i+4\cos (\theta )+7i\sin (\theta )$

$z=5+4\cos \theta +i(7\sin \theta -2)$

$Re(z)=5+4\cos \theta$

$Im(z)=7\sin \theta -2$

5 0

3 years ago

Hellppp pleaseeee

stiks02 [169]

Answer:

Volume of cylinder is 953.77 cm³ and volume in term of π is 303.75π

Step-by-step explanation:

Given: Diameter is 9 cm

Height is 15 cm.

First lets find out the radius of cylinder.

As given, diameter is 9 cm

we know, radius= $\frac{diameter}{2}$

Radius= $\frac{9}{2} = 4.5\ cm$

Now, finding the volume of the cylinder.

Formula; Volume of cylinder= $\pi r^{2} h$

where r is radius and h is height of cylinder.

⇒ Volume of cylinder= $\pi \times 4.5^{2} \times 15$

⇒Volume of cylinder= $\pi \times 20.25\times 15$

⇒Volume of cylinder= $303.75\pi$

Taking π = 3.14

⇒ Volume of cylinder= $303.75\times 3.14$

⇒ Volume of cylinder= 953.77 cm³

Hence, volume of cylinder is 953.77 cm³ and volume in term of π is 303.75π.

5 0

3 years ago

Have vehicles gotten more fuel-efficient over the years? Between 1960 and 1999 the size and shape of automobiles in the United S

polet [3.4K]

Answer: option A. 9.2 gal/year

Justification:

The average rate of change from 1960 to 1970 is the change on the variable gallons consumed per passenger car divided by the period

average rate of change = Δg / Δt

Δg = 760 gallons - 668 gallons

Δt = 1970 year - 1960 year

760 gal - 668 gal 92 gal
average rate of change = -------------------------------- = ---------- = 9.2 gal / year
1970 year - 1960 year 10 year

Answer: 9.2 gal / year

As you see for this specific period, 1960 to 1970, the vehicles increased their consumption of gas per passenge, meaning that they became less efficient.

8 0

3 years ago

Read 2 more answers

Whats would the slope of (-3,10),(-5,-4) coordinates be?

valentina_108 [34]

Answer:

The slope is 7.

Step-by-step explanation:

Let the given points are (p, q)= (-3, 10) & (r, s) =(-5, -4).

Then the slope (m) = (s-q)/(r-p)

⇒ m = (-4 -10)/(-5-(-3))

⇒ m = (-14) / (-5 +3)

⇒ m = -14/- 2

⇒m = 7

Hence the slope is m =7 .

6 0

3 years ago

Read 2 more answers