All categories

3 years ago

The cube of twice a number

Mathematics

1 answer:

raketka [301]3 years ago

3 0

Answer:

The cube of twice a number.

Twice a quantity usually indicates to take two of the things in question; usually this indicates to multiply by 2. Thus "twice a number x" can be written symbolically as 2x. If this is part of a problem, say twice a number x is 6, then we can rewrite algebraically as 2x=6; dividing both sides by 2 yields x=3.

Step-by-step explanation:

have a nice day, please give me brainliest

You might be interested in

If f(x) = 2x2 + 1 and g(x) = x2 – 7, find (f + g)(x).

lara31 [8.8K]

Remember that, although it may look intimidating, (f+g)(x) is simply f(x) + g(x)
Therefore:
(f+g)(x) = f(x) + g(x) Substitute the functions for f(x) and g(x)
(f+g)(x) = (2x² + 1 )+ (x² - 7)
Notice that we first want to write the functions in as parenthesis before we add them. This helps us keep from getting confused on what signs to give each term.
(f+ g)(x) = 2x² + x² + 1 - 7 Collect like terms
(f + g) (x) = 3x² - 6
Answer is B

7 0

3 years ago

Use the Binomial Theorem and Pascal’s Triangle to write each binomial expansion.

tensa zangetsu [6.8K]

Answer

x^3-15x^2+75x-125

5 0

3 years ago

A grocery store offers a cheese and fruit sampler that combines cheddar cheese that costs $8 per kilogram with kiwis that cost $

dlinn [17]

Answer:

I have 1000$ i wanna buy it

Step-by-step explanation:

6 0

2 years ago

Write the equation of the line in fully simplified slope-intercept form.

Leya [2.2K]

Answer:

$y = -\frac{1}{6}x +2$

Step-by-step explanation:

To write an equation into slope-intercept form, or y = mx + b format, we need to find the y-intercept of the line and its slope and substitute values for m and b.

1) First, find the y-intercept. The y-intercept is the point at which the line intersects the y-axis. Reading the graph, we can see that the line passes the y-axis at the point (0,2), thus that is the y-intercept.

2) Next, find the slope. Pick out two points on the graph to use for the slope formula, $\frac{y_2-y_1}{x_2-x_1}$ . I chose to work with (0,2) and (6,1). Now, substitute the two points' x and y values into the formula appropriately and solve:

$\frac{(1)-(2)}{(6)-(0)} \\= \frac{1-2}{6-0}\\= \frac{-1}{6}$

Thus, $-\frac{1}{6}$ is the slope.

3) Now, substitute the calculated values into the y = mx + b format. The b represents y-value of the y-intercept. The y-intercept is (0,2), thus substitute 2 for b. The coefficient of the x term, or m, represents the slope, thus substitute $-\frac{1}{6}$ for m. This will give the following equation of the line in slope-intercept format:

$y = -\frac{1}{6}x +2$

4 0

3 years ago

Read 2 more answers

Customer of a phone company can choose between two service plans for long distance calls the first plan has no monthly fee but c

stiks02 [169]

Answer:

575

Step-by-step explanation:

.16x = 23 + .12x

Subtract .12x and then divide and get

.04x = 23

x = 575 minutes

4 0

3 years ago

Read 2 more answers