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3 years ago

Someone pls help and explain

Mathematics

2 answers:

anastassius [24]3 years ago

8 0

Answer:

I can help with number 7 if you want

Scilla [17]3 years ago

8 0

1. Equation

y=15x + 10

This is the answer because 10 intercepts on the y axis and it says $15 dollars each.

2. -2 so you do y-y and x-x. In this case its 4-2 and 2-3 which equals 2 and -1 . Which divided equals -2.

Sorry I can't figure out the rest but I did do these ones.

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A cube has side length x. One side of the cube is increased by 4 inches, and another side is doubled. The volume of the new rect

AfilCa [17]

Let

x-------> the length side of the original cube

we have

$2x^{3} +8x=450\\2x^{3}=450-8x$

Divide by $2$ both sides

$x^{3}=225-4x$

The system of equations is equal to

$y=x^{3}$ --------> equation $1$

$y=225-4x$ --------> equation $2$

using a graphing tool

see the attached figure

we know that

the solution of the system of equations is the intersection both graphs

therefore

the solution is

$x=5.86\ in$

therefore

<u>the answer is</u>

$5.86\ inches$

6 0

4 years ago

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Someone help pls. Im using all my points for this. Ill give u brainliest if u get this right.

Crazy boy [7]

Answer:

Step-by-step explanation:

For a function, the input only has one output. For example, if we take gender as our input and age as our output. There can be more than one female or male with different ages.

A function does not have to be a quantitative number, as long as it follows the one output for every input rule.

5 0

3 years ago

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The following set of coordinates represents which figure?<br> <br> (8, 8), (6, 6), (8, 4), (10, 6)

yuradex [85]

It would be a rhombus

6 0

3 years ago

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What is the thousands place of 920

goldfiish [28.3K]

Answer:

There is no Thousands place in the number 920

Step-by-step explanation:

There are only units (0), tens (20) and hundreds (900).

6 0

4 years ago

Maryann's friends loved her bulletin board , and 4 of them asked her to make one for their homes. She offered to make each of he

bulgar [2K]

Complete Question:

To create a bulletin board, Maryann is planning to stretch fabric from burlap sacks over cardstock. She collects 6 kg of burlap sacks. The area density of the burlap is 0.4 kg/m².

Maryann's friends loved her bulletin board , and 4 of them asked her to make one for their homes. She offered to make each of her friends a replica of her bulletin board that measures 2 meters by 3 meters . How many kilograms of burlap should Maryann collect to complete the bulletin boards for her friends?

Answer:

To complete the bulletin boards for her friends, Maryanne should collect 6 kg of burlap more

Step-by-step explanation:

Mass of burlap sacks that Maryann collects = 6 kg

Area density of burlap = 0.4 kg/m²

Area Density = Mass / Area........(1)

The Area of bulletin board that can be made with the 6 kg of burlap sand can be calculated by using equation (1)

0.4 = 6 / Area

Area = 6/0.4

Area of bulletin board that can be made from 6 kg= 15 m² of bulletin board

The area of bulletin board that Maryann made for herself = 2 * 3 = 6m²

To make similar bulletin boards for her four friends, the total area of bulletin board made for her 4 friends = 6 * 4 = 24m²

To calculate the mass of burlap required to make a 24m² bulletin board, use equation (1)

0.4 = Mass / 24

Mass = 0.4 * 24

Mass = 9.6 kg

The mass of burlap used to make Maryann's bulletin board alone:

0.4 = Mass/6

Mass = 2.4 kg

Out of the 6kg that she got, she has used 2.4 kg for herself

The remaining mass of burlap = 6 - 2.4 = 3.6 kg

Therefore, to complete the bulletin board for her friend, she should collect (9.6 - 3.6) = 6 kg of bulletin more

5 0

3 years ago