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allsm [11]
4 years ago
14

Let f(x)=(5)x+12. Evaluate f(0) without using a calculator.

Mathematics
1 answer:
Lelu [443]4 years ago
8 0

Answer:

f(0) = 12

Step-by-step explanation:

You want to substitute 0 for x

f(0) = 5(0) + 12

f(0) = 12

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A 168-cm tall person is 2 cm in Ming’s model. How high should his model swing be if the actual swing is 231 cm high?
serious [3.7K]

Answer:

The model swing should be <u>2.75 cm</u> high.

Step-by-step explanation:

Given:

A 168-cm tall person is 2 cm in Ming’s model.  

If the actual swing is 231 cm high.

Now, to find how high should his model swing be.

Let the model swing be x\ cm.

So, 168 cm tall person is equivalent to 2 cm.

Thus, 231 cm actual swing is equivalent to x\ cm model swing.

Now, we get the height of the swing in the model by using cross multiplication method:

\frac{168}{2} =\frac{231}{x}

<em>By cross multiplication:</em>

⇒ 168x=462

<em>Dividing both sides by 168 we get:</em>

⇒ x=2.75\ cm.

Therefore, the model swing should be 2.75 cm high.

3 0
4 years ago
In what time is sum of money triples itself at 5%p.a​
lorasvet [3.4K]

Answer:

Step-by-step explanation:

40 years

5 0
2 years ago
Hank is throwing a party. The party costs $20 per person. Answer the questions below to describe the relationship between the co
LenKa [72]

Answer:

The independent variable is (f) Number of friends. The dependent variable is (c) Cost of party.

The equation is c = 20f or the cost for 50 friends is c = 20(50) = 1000. It costs $1000.

Step-by-step explanation:

On a graph called the coordinate plane, there are two axis. The horizontal axis is the x-axis and is known as the independent variable. A great example of an independent variable is time. Time is always represented on the x-axis because time passes by. It does not depend on anything.

The other axis is the y-axis. It is the vertical axis on the graph. It is called the dependent variable because its value depends on x. For example, if you were looking at miles per hour, the number of miles would depend on how many hours you traveled. You have to know the time to find miles. This is a dependent variable.

Here the independent variable is the number of people. The dependent variable is the cost of the party because the amount of money depends on how many people come.

The equation is c = 20f or the cost for 50 friends is c = 20(50) = 1000. It costs $1000.

4 0
4 years ago
Read 2 more answers
The difference of 15 and 7 divided by 2
nasty-shy [4]
The answer is four. 15-7=8/2=4
7 0
3 years ago
Is 0 a solution to 2x+10=4x+10 and why
Crank

Answer:

I dunno

Step-by-step explanation:

2x + 10 = 4x + 10

2x - 4x = 10 - 10

- 2x = 0

5 0
3 years ago
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