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4 years ago

Evaluate n/6+2 when n =12

Mathematics

2 answers:

alexdok [17]4 years ago

6 0

Answer:

1.5

Step-by-step explanation:

First, substitute n for 12

Then you have the fraction 12/6+2

Now, add 6 and 2 together

Now you have the fraction 12/8

Now you can either divide 12 by 8 and get 1.5, or simplify the fraction and get 1 and 1/2.

Both answers are equal.

Mashcka [7]4 years ago

3 0

The answer is 4!!
because 12/6 = 2 and 2+2 =4

You might be interested in

Which exponential function goes through the points (1, 16) and (4, 128)?

djyliett [7]

Answer:

Here is the complete question (attachment).

The function which represent the given points are $f(x)=8(2)^{x}$

Step-by-step explanation:

We know that a general exponential function is like, $y=a(b)^{x}$

We can find the answer by hit and trial method by plugging the values of $(x,y)$ coordinates.

Here we are going to solve this with the above general formula.

So as the points are $(1,16)$ then for $x=1,\ y=16$

Can be arranged in terms of the general equation.

$ab^1=16$ ...equation(1) and $ab^4=128$ ...equation(2)

$a\times b=16, then\ a=\frac{16}{a}$

Plugging the values in equation 2.

We have

$\frac{16}{b} b^4=128,16\times b^3=128,b=\sqrt[3]{\frac{128}{16}} =\sqrt[3]{8}=2$

Plugging $b=2$ in equation 1.

We have $a=\frac{16}{b} =\frac{16}{2} =8$

Comparing with the general equation of exponential $a=8$ and $b=2$

So the function which depicts the above points = $y=8(2)^x$

From theoption we have B as the correct answer.

7 0

4 years ago

Please help- <br> Find the equation of the line with slope 3 that passes through (1, 8).

MakcuM [25]

Answer:

y = 3x + 5

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Here m = 3 , then

y = 3x + c ← is the partial equation

To find c substitute (1, 8 ) into the partial equation

8 = 3 + c ⇒ c = 8 - 3 = 5

y = 3x + 5 ← equation of line

7 0

3 years ago

Solve for v 209=40-v

andrew-mc [135]

Answer:

-169

Step-by-step explanation:

We want to isolate v.

Method 1: subtract 40 from both sides, obtaining 169 = -v. Then change the sign of both sides, arriving at v = -169.

Method 2: Add v to both sides. Then v + 209 = 40.

Now subtract 209 from both sides, obtaining -169.

6 0

3 years ago

If the vault of y varies directly with x and y =-8 when x=4 find y when x =-4

Aloiza [94]

Solution;

$\begin{gathered} y\propto x \\ y=kx \end{gathered}$ $\begin{gathered} When\text{ y=-8 and x=4;} \\ -8=4k \\ k=-\frac{8}{4}=-2 \end{gathered}$ $\begin{gathered} When\text{ x=-4, y=?} \\ y=-2(-4) \\ y=8 \end{gathered}$

Answer;

y=8

8 0

1 year ago

The population of a certain animal species you are studying decreases at a rate of 3.5% per year. Only 80 of the animals in the

balu736 [363]

The function:
f ( x ) = x * 0.965^t
where x is the initial amount and t is the number of the years
80 = x * 0.965^3
80 = x * 0.89632
x = 80 : 0.89632 ≈ 89
Answer:
The initial amount of animals was 89.

3 0

4 years ago