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3 years ago

The domain for f(x) and g(x) is the set of all real numbers.

Mathematics

1 answer:

Rufina [12.5K]3 years ago

4 0

If you want to multiply the two functions, the answer is a.

In fact, you have

$(3x + 5)x^2 = 3x \cdot x^2 + 5\cdot x^2 = 3x^3 +5x^2$

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Solve the equation. x2 18x 81 = 25 a. 14, 4 b. –4, –14 c. 14, –14 d. –4, 4

Snowcat [4.5K]

Answer:

The answer is the option B

$-4,-14$

Step-by-step explanation:

we know that

The formula to solve a quadratic equation of the form $ax^{2} +bx+c=0$ is equal to

$x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}$

in this problem we have

$x^{2}+18x+81=25$

$x^{2}+18x+56=0$

$a=1\\b=18\\c=56$

substitute in the formula

$x=\frac{-18(+/-)\sqrt{18^{2}-4(1)(56)}} {2(1)}$

$x=\frac{-18(+/-)\sqrt{100}} {2}$

$x=\frac{-18(+/-)10} {2}$

$x1=\frac{-18+10} {2}=-4$

$x2=\frac{-18-10} {2}=-14$

7 0

3 years ago

Read 2 more answers

What is the 4th term in the sequence ?

vovangra [49]

answer -2

Step-by-step explanation:

plug 4 for n the put in a calculator hope this helps

3 0

3 years ago

Which of the following lists the angles from smallest to largest

Tomtit [17]

I don’t understand the question

3 0

3 years ago

Read 2 more answers

In order for a class trip to be scheduled, at least 30 students must sign up. So far, 23 students have signed up. Write and solv

Grace [21]

Answer:

Step-by-step explanation:

30 ≤ 23 + x

7 ≤ x

3 0

2 years ago

NEED THIS ASAPWrite the standard form of the equation of each line given the slope and y-intercept

Mama L [17]

Note:

Your first question is missing the y-intercept, so I am solving the 2nd question. You would still get your concept clear because the procedure to solve each of the questions is the same.

Question 2

Answer:

The equation in the standard form is:

2/3x + y = -4

Please also check the attached graph.

Step-by-step explanation:

We know that the equation in the standard form is

Ax + By = C

where x and y are variables and A, B and C are constants

Given

Slope m = -2/3

y-intercept = -4

To determine

Write the equation in the standard form

We know that the slope-intercept form of the line equation

$y = mx+b$

where

m is the slope

b is the y-intercept

In our case:

Slope m = -2/3

y-intercept = -4

substituting m = -2/3 and y-intercept b = -4 in the slope-intercept of the line equation

y = mx+b

y = -2/3x + (-4)

y = -2/3x - 4

Writing the equation in the standard form

2/3x + y = -4

Therefore, the equation in the standard form is:

2/3x + y = -4

Please also check the attached graph.

4 0

3 years ago