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SpyIntel [72]
3 years ago
13

At a farm the ratio of cows to horses was 8 : 3. If there were 24 cows at the farm, how many horses were there?

Mathematics
2 answers:
podryga [215]3 years ago
8 0

Answer:

9 horses i think

Step-by-step explanation:

24/8 = 3

3*3 = 9

jok3333 [9.3K]3 years ago
4 0
9 Horses or 24:9

Since there are 24 cows we can do 24/8 and get 3. Then multiply the amount of horses by 3.

3(3) = 9.

Therefore there would be 9 horses.
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Find the solutions to the equation below.Check all that apply.
Blababa [14]

we are given

x^2-4=0

To find solution , we can factor it and then we can solve for x

step-1: Factoring

x^2-4=0

(x-2)(x+2)=0

step-2: Solve for x

(x-2)=0

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(x+2)=0

x=-2

so, option-C and option-F...........Answer

8 0
3 years ago
Find the center of mass of the wire that lies along the curve r and has density =4(1 sin4tcos4t)
dolphi86 [110]

The mass of the wire is found to be 40π√2 units.

<h3>How to find the mass?</h3>

To calculate the mass of the wire which runs along the curve r ( t ) with the density function δ=5.

The general formula is,

Mass = \int_a^b \delta\left|r^{\prime}(t)\right| d t

To find, we must differentiate this same given curve r ( t ) with respect to t to estimate |r'(t)|.

The given integration limits in this case are a = 0, b = 2π.

Now, as per the question;

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r(t) = (4cost)i + (4sint)j + 4tk

Now, differentiate this same given curve r ( t ) with respect to t.

\begin{aligned}\left|r^{\prime}(t)\right| &=\sqrt{(-4 \sin t)^2+(4 \cos t)^2+4^2} \\&=\sqrt{16 \sin ^2 t+16 \cos ^2 t+16} \\&=\sqrt{16\left(\sin t^2+\cos ^2 t\right)+16}\end{aligned}

Further simplifying;

\begin{aligned}&=\sqrt{16(1)+16} \\&=\sqrt{16+16} \\&=\sqrt{32} \\\left|r^{\prime}(t)\right| &=4 \sqrt{2}\end{aligned}

Now, use integration to find the mass of the wire;

       \begin{aligned}&=\int_a^b \delta\left|r^{\prime}(t)\right| d t \\&=\int_0^{2 \pi} 54 \sqrt{2} d t \\&=20 \sqrt{2} \int_0^{2 \pi} d t \\&=20 \sqrt{2}[t]_0^{2 \pi} \\&=20 \sqrt{2}[2 \pi-0] \\&=40 \pi \sqrt{2}\end{aligned}

Therefore, the mass of the wire is estimated as 40π√2 units.

To know more about density function, here

brainly.com/question/27846146

#SPJ4

The complete question is-

Find the mass of the wire that lies along the curve r and has density δ.

r(t) = (4cost)i + (4sint)j + 4tk, 0≤t≤2π; δ=5

5 0
1 year ago
How long will it take 5 machines to complete a task, given that it takes 10 days for 8 machines to complete the same task?
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Answer:

Step-by-step explanation:

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3 years ago
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Answer:

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Step-by-step explanation:

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Read 2 more answers
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11Alexandr11 [23.1K]

Answer:

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Step-by-step explanation:

Combine like-terms.

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Do the Math

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