Help if you can! F(x)= 3x^2 + 1 Find f(4n)

How do i find the altitudes of these points? (8,10), (5,-10), (0,0)

Naya [18.7K]

The first values are the x axis, wich are sideways but the second values are y axis wich are up and down so since you havent given much context they are 10 -10 and 0

6 0

3 years ago

5^7 + 5^6 = _* 6 AWARDING BRAINLIEST

enyata [817]

Answer:

1.91666666666666666666...

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

1.9 An electronics store buys media from customers

Marina CMI [18]

The store pays $2 for each Blu-ray disc, $0.75 for each DVD, and

$0.1 for each VHS cassette

Step-by-step explanation:

An electronics store buys media from customers to resell.

The given is:

1. The store pays one customer $5.30 for one Blu-ray disc, four DVDs,

and three VHS cassettes

2. The store pays the second customer $11.50 for five Blu-ray discs

and two DVDs

3. The store pays the third customer $10.20 for two Blu- ray discs, eight

DVDs, and two VHS cassettes

We need to find the amount the store pays for each item

Assume that:

The cost of a Blue-ray disc is $x

The cost of a DVD is $y

The cost of a VHS cassette is $z

∴ x + 4y + 3z = 5.3 ⇒ (1)

∴ 5x + 2y = 11.5 ⇒ (2)

∴ 2x + 8y + 2z = 10.2 ⇒ ÷ 2

∴ x + 4y + z = 5.1 ⇒ (3)

- Subtract equation (3) from equation (1)

∵ x + 4y + 3z = 5.3 ⇒ (1)

∵ x + 4y + z = 5.1 ⇒ (3)

∴ 2z = 0.2

- Divide both sides by 2

∴ z = 0.1

Substitute the value of z in equation (3)

∴ x + 4y + 0.1 = 5.1

- Subtract 0.1 from both sides

∴ x + 4y = 5 ⇒ (4)

Let us solve equations (2) and (4)

∵ 5x + 2y = 11.5 ⇒ (2)

∵ x + 4y = 5 ⇒ (4)

- Multiply equation (2) by -2 to eliminate y

∴ -10x - 4y = -23 ⇒ (5)

- Add equations (4) and (5)

∴ -9x = -18

- Divide both sides by -9

∴ x = 2

- Substitute the value of x in equation (2)

∴ 5(2) + 2y = 11.5

∴ 10 + 2y = 11.5

- Subtract 10 from both sides

∴ 2y = 1.5

- Divide both sides by 2

∴ y = 0.75

The store pays $2 for each Blu-ray disc, $0.75 for each DVD, and

$0.1 for each VHS cassette

Learn more:

You can learn more about solving equations in brainly.com/question/9045597

#LearnwithBrainly

8 0

3 years ago

Each student in a school was asked, "What is your favorite color?" The circle graph below shows how they answered

mariarad [96]

Answer:

a). BLUE color

b). 20%

Step-by-step explanation:

a). "Which color was chosen by approximately one fourth of the students?"

Since one fourth of the students will be represented by one fourth area of the circle given.

That means color of choice represented by the quarter of the circle will be the color liked by one fourth students.

In the figure attached, BLUE color is the choice of one fourth students in the class.

b). Area represented by purple, green and other colors is a quarter of the circle.

If we divide this quarter into five equal sections, then the total of purple and green will be $4\times \frac{1}{5}$ of the the quarter of the circle.