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3 years ago

The function f(x) varies inversely with x and f(x) = 4 when x = 12.

Mathematics

2 answers:

goldfiish [28.3K]3 years ago

4 0

Seriously know the answer, its 16, not 1. Just did it.

Alex777 [14]3 years ago

4 0

<h3>Answer: C. 16.</h3>

Step-by-step explanation:

We are given inverse relation between f(x) and x.

The function f(x) varies inversely with x.

Inverse relation could be written as

f(x) = $\frac{k}{x}$ .

We also given f(x) = 4 when x = 12.

Plugging f(x) = 4 and x=12 in the above inverse relation to get the value of constant k.

$4=\frac{k}{12}$ .

On cross multiplying, we get

12× 4 = $12 \times \frac{k}{12}$

48 = k

Now, we need to find f(x) for x=3.

Plugging k=48 and x=3 in inverse relation, we get

$f(x) = \frac{48}{3} = 16$ .

<h3>Therefore, f(x)=16 when x=3.</h3>

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a nature clubs has 37 member.each member receives 15 fish to put aquarium . if 20 of total number of fish or put into a fish bow

PilotLPTM [1.2K]

Answer:

Just do 20x37=74

5 0

2 years ago

Which representation has a constant of variation of -2.5

Neporo4naja [7]

Answer:

See explanation

Step-by-step explanation:

The constant of variation is found using the slope formula:

$\frac{y_2-y_1}{x_2-x_1}$

The given relation is

X : -2 , -3, -4, -5

Y : -5, -7.5,-10,-12.5

We can use any two ordered pair to find the constant of variation.

Using (-2,-5) and (-3,-7.5), we have

$m=\frac{-7.5--5}{-3--2} =\frac{-2.5}{-1} =2.5$

The constant of variation is 2.5

We need to repeat this for all the options to identify the one with -2.5 as slope.

unfortunately, you did not provide the remaining options.

6 0

3 years ago

Read 2 more answers

If 10 + a = 10, then a = 0

Lunna [17]

Answer:

B) identity property of addition.

Step-by-step explanation:

Given:

The statement given is:

$10+a=10,\ then\ a=0$

Here, we observe that 10 is added to a giving the number 10 itself as the answer. So, we know of a property which says that when 0 is added to a number, the result is the number itself. This property is called identity property of addition.

So, the value of $a$ must be 0 because on adding $a$ to 10, we are getting the number 10 only. So, the above statement is an example of identity property of addition.