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2 years ago

Evaluate f(1) = 3x + 8

Mathematics

2 answers:

Oksi-84 [34.3K]2 years ago

8 0

Answer:

Step-by-step explanation:

f(1) = 3(1) + 8 = 3 + 8 = 11

Pavel [41]2 years ago

5 0

Answer: 11

Step-by-step explanation: Here we're given the function f(x) = 3x + 8 and we're asked to find f(1). In other words, if we put an x into our function, we get a 3x + 8 out so what happens when we put a 1 into the function?

Well if we put a 1 into the function, that's f(1), we get a 3(1) + 8 out.

Now all we have to do is simplify on the right side.

3(1) is 3 so we have 3 + 8 which is 11.

So f(1) is 11.

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Given the equations f(x) = x + 4 and d (x) = 2x + 5, find: f (1) + d (2)

Lina20 [59]

1 = x + 4
3 = x

2 = 2x + 5
3 = 2x
3/2= x

3 0

3 years ago

Find the midpoint of the line segment that has endpoints at (10,8) (-3,-10)

dem82 [27]

Hey there! :)

Answer:

(3.5, -1).

Step-by-step explanation:

Use the midpoint formula to solve this problem:

$(x_m, y_m) = (\frac{x_1+x_2}{2}, \frac{y_1+y_2}{2})$

Plug in the coordinates given:

$(\frac{10-3}{2}, \frac{8-10}{2})$

Simplify:

$(\frac{7}{2}, \frac{-2}{2})$

Therefore, the coordinates of the mid-point are:

(3.5, -1).

7 0

3 years ago

Use the given conditions to write an equation for the line in point-slope form.

Alex17521 [72]

Step-by-step explanation:

Hey there!

The given slope is; 3. And passing through point (-7,8).

Now,

Using one point formula.

$(y - y1) = m(x - x1)$

Put all values to find equation.

$(y - 8) = 3(x + 7)$

Simplify them to get answer.

$(y - 8 )= 3x + 21$

$3x - y + 21 + 8 = 0$

$3x - y + 29 = 0$

Therefore the required equation is 3x-y+29=0.

Hope it helps...

3 0

3 years ago

The median of the set (n, n+5, n+6, n+9, n+15) is 9. What is the mean?

Simora [160]

Answer:

=9.4

Step-by-step explanation:

The median is the middle of the numbers when lined up from smallest to largest

(n, n+5, n+6, n+9, n+15)

The median is n+6

n+6 = 9

Subtract 6 from each side

n +6-6 = 9-6

n = 3

The numbers are

(n, n+5, n+6, n+9, n+15)

3, 8 ,9 ,12, 15

The mean is where you add up all the numbers and divide by the number of numbers

mean = (3+8+9+12+15) /5

= (47)/5

= 9 2/5

=9.4

3 0

3 years ago

3 more than the product of 7 and a number x is less than 26 Find the solution set for x. Write the solution using a fraction or

Tresset [83]

Answer: The solution set is $x\:$

Step-by-step explanation:

The product of 7 and x is $7x$ .

3 more than the product of 7 and x is $7x+3$ .

We were given that, the expression is less than 26.

This implies that,

$7x+3\:$ .

We group like terms to obtain,

$7x\:$

$7x\:$ we now divide through by 7 to obtain,

$x\:$

We finally write this as a mixed number to obtain,

$x\:$

4 0

3 years ago