All categories

3 years ago

Compute the exact value of the function for the given x-value without using a calculator. f(x) = 7x for x = 2

Mathematics

2 answers:

Bas_tet [7]3 years ago

6 0

Answer:

Step-by-step explanation:

Substitute x = 2 into f(x)

f(2) = 7 × 2 = 14

Jobisdone [24]3 years ago

6 0

Answer:

f(x)=14

Step-by-step explanation:

First, you simply plug in x=2 into f(x)=7x

Therefore you are left with f(x)=7(2)

Then you must notice that parenthesis mean multiplication...

And.. 7 x 2 =14

Hence your answer of f(x)=14

You might be interested in

3. Considering the following two-way frequency table:

tensa zangetsu [6.8K]

Answer:

41%

Step-by-step explanation:

It is 41% because it says 0.41 people like math and converting decimals to percents it would be 41% because 0.41 is decimal form for 41%

But don't forget to add my vote for favorite subject is ma ma ama ma ma ma ma ma ma ma ma math.

Hope it helps have a great afternoon:)

8 0

3 years ago

What's a quarter of 46.5

SCORPION-xisa [38]

Answer:

11.625 or mixed number form 11 $\frac{5}{8}$

Step-by-step explanation:

divide 46.5 by 4

4 0

2 years ago

Kesia knows that 1/4=0.25. Explain how she could use this fact to determine the decimal equivalent of 5/8

STatiana [176]

She knows that
$0.25 = \frac{1}{4} = \frac{2}{8}$
$\frac{5}{8} = \frac{2}{8} + \frac{2}{8} + \frac{1}{8} = \\ 0.25 + 0.25 + \frac{0.25}{2} = \\ 0.25 + 0.25 + 0.125 = 0.625$

4 0

4 years ago

Read 2 more answers

Convert the following equation to slope-intercept form to graph. 7x – y = –3

jekas [21]

Slope-intercept form:
y = m x + b
7 x - y = - 3
- y = - 7 x - 3 / * ( - 1 )( we have to multiply both sides of the equation by - 1 )
Answer:
y = 7 x + 3

8 0

4 years ago

Help please i dont get it

ale4655 [162]

Answer:

Step-by-step explanation:

The rules of logarithms let you rewrite this as a quadratic equation. That equation will have two (2) potential solutions. We know from the domain of the log function that any negative value of x will be an extraneous solution.

The rules of logarithms that apply are ...

$\log(a)+\log(b)=\log(ab)\qquad\text{all logarithms to the same base}\\\\\log_b(a)=c\ \Longleftrightarrow\ b^c=a\\\\$

<h3>take antilogs</h3>

We can rewrite the equation so that only one logarithm is involved. Then we can take antilogs.

$\log_4(x)+\log_4(x+6)=2\\\\\log_4(x(x+6))=2\qquad\text{using the first rule}\\\\4^2=x(x+6)\qquad\text{using the second rule}$

<h3>solve the quadratic</h3>

Adding (6/2)² = 9 to both sides will "complete the square."

16 +9 = x² +6x +9 . . . . . . . add 9

25 = (x +3)²

±√25 = x +3 = ±5 . . . . . take the square root(s)

x = -3 ±5 = {-8, +2}

The two potential solutions are x = 2 and x = -8.

8 0

2 years ago

Read 2 more answers