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Mrac [35]
3 years ago
10

9

Mathematics
2 answers:
Alexeev081 [22]3 years ago
7 0

<em>so</em><em> </em><em>the</em><em> </em><em>answer</em><em> </em><em>is</em><em> </em><em>3</em><em>6</em><em>.</em>

<em>Hope</em><em> </em><em>this</em><em> </em><em>will</em><em> </em><em>help</em><em> </em><em>u</em><em>.</em><em>.</em><em>.</em>

Alina [70]3 years ago
7 0

Answer:

36 necklaces

Step-by-step explanation:

Make a proportion

12/20=x/60

Cross multiply

20x=720

Divide by 20 on both sides

x=36

So, she can make 36 necklaces in an hour

Hope this helps! :)

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Given that k(x) = (2x + 4)2
taurus [48]

Answer:

f(x)=4x\\g(x)=x+2

Step-by-step explanation:

Because we have to rewrite this equation in the format f(g(x)), we have to divide, or factor to find basic terms,

Expanding the value of k(x), we have k(x)=4x+8. We see that each term can be divisible by 4, so we can factor out 4 to get

k(x)=4(x+2)

Now, we have two different terms getting multiplied. We can separate the two to get 4 \text{ and} (x+2)

Because we are multiplying 4 by the other term, this is represented by 4x

Now, we can just set f(x) and g(x) to these functions:

f(x)=4x\\g(x)=x+2

Now, just to make sure, we can plug a value into k(x) and the same value into f(g(x)). Plugging in 1, we have (2(1)+4)2 as 2(2+4), which is 2(6) = 12.

Plugging 1 into f(g(x)), we can evaluate g(1) first, to get 1 + 2 = 3. Now, f(3) = 4(3)= 12, which is the same for k(x).

3 0
3 years ago
How do I graph y = 1/5 cos x
MariettaO [177]
The answer is here. Hope I did help you.

4 0
3 years ago
Satellite
sammy [17]

The first missing quantity is force due to gravity, and it is 215.1 N.

The second missing quantity is distance between the statellite and the Earth, determined as 6,000 km.

<h3>Force between two masses</h3>

The force between two masses is determined by applying Newton's law of universal gravitation as shown below;

F = \frac{GMm}{R^2}

where;

  • M is mass of Earth = 5.97 x 10²⁴ kg
  • m is mass of the satellite
  • R is the distance between the satellite and the Earth
  • G is universal gravitation constant
<h3>First missing quantity</h3>

The first missing quantity is force due to gravity, and it is calculated as follows;

F = \frac{(6.67 \times 10^{-11} ) \times (5.97 \times 10^{24}) \times (700)}{(36,000 \times 10^3)^2} \\\\F = 215.1 \ N

<h3>Second missing quantity</h3>

The second missing quantity is distance between the statellite and the Earth,

R^2 = \frac{GMm}{F} \\\\R^2 = \frac{(6.67 \times 10^{-11})(5.97 \times 10^{24})(1000)}{11,000} \\\\R^2 = 3.62 \times 10^{13}\\\\R = 6,000 \ km

Learn more about Newton's law here: brainly.com/question/3999427

6 0
2 years ago
Anybody Know This. ?
Lyrx [107]
The first circle has circumference 10π and area 25π² and the second circle has circumference 12π and area 36π².
Use the formulas area = πr² and circumference = 2πr
4 0
3 years ago
PLZ ANSWER 20 POINTS
Nataliya [291]
B. but im not entirely sure
3 0
3 years ago
Read 2 more answers
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