I need help with 5 other ones I’ll give brainlest if you help me

Answer:

3x^2+17x+20

Step-by-step explanation:

Answer: x = y

y = -4

y = 3x + 2

x = 8

Simplify: (-3a2b5)2

Find (x - 4)2`Find the product: (3x + 5)(4x - 1)

Use FOIL:

F: 3x*4x=12x^2

O: 3x*-1 = -3x

I: 5*4x = 20x

L: 5*-1 = -5

Combine these products to get:

12x^2+17x-5

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Which of the following is the equation of a vertical line?

x = y

y = -4

y = 3x + 2

x = 8

Answer x=8 ; The graph is the set of points where x=8.

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Simplify: (-3a2b5)2

=(-3a^2b^5)(-3a2b^5)

=9a^4b^10

------------

Find (x - 4)^2

=(x-4)(x-4)

Use FOIL to get:

x^2-4x-4x+16

=x^2-8x+16

Step-by-step explanation:All work needed to arrive at a correct answer. If it is not a question that requires work, you will need to provide a complete explanation of how you determined the correct answer. (Explanations for those problems not requiring work must demonstrate your understanding of the concept.)

Answer:

Step-by-step explanation:

n=7

Answer:

(-3.5, 2.3)

Step-by-step explanation:

Took the assignment on Edge 2020, hope this helps! :)

Answer:    (-3.5, 2.3)

right on edg 2021

Step-by-step explanation:

Answer:

False, True, True, False

Step-by-step explanation:

I'm pretty sure all your answers are right except the second one. I'm no genus or anything like that tho so I'm not sure. Plus I'm not good at graphs. Well depends how it is.

Answer:

124457.29

Step-by-step explanation:

I’m assuming when you say two decimal places, you mean to the hundreds, because that’s two decimal places. Since 7 is 5 or greater, round up. And you’ll get 124457.29

Hope this helps! :)

Answer:

The answer is -4/21

Step-by-step explanation:

Answer:

0.6

Step-by-step explanation:

Brainliest please

Answer:

x=6

Step-by-step explanation:

2x-3=9

ad three on both sides then divide 2 on both sides

Answer:

27 and 28

Step-by-step explanation:

Answer:

The slope of line is (3,-2)

Answer:

4 pounds

Step-by-step explanation:

Since 8 is above 5 you would round the 3 up to a 4

(click the brain on the top right of my answer)

Answer:

4 pounds

Step-by-step explanation:

Answer:

The y-intercept is -2.

Step-by-step explanation:

Look at the graph and see where the line crosses the y-axis.

Answer:

-2

Step-by-step explanation:

The y-intercept is defined as the point where the line crosses the y-axis. It can be negative or positive. In this picture, the line crosses the y-axis at the point -2.

~theLocoCoco

Answer:

uh I am pretty sure that it is $28 I'm not sure I'm only in 6th grade

Step-by-step explanation:

Answer: Its the third one from up. Second from bottom.

Step-by-step explanation: I looked at all of the other ones and they did not make sense. Let me know if I got wrong. God Bless!

Answer:

x = 73 is the number of hours she worked at her job last month.

Step-by-step explanation:

12 is the hourly wage that she earn at her job.

340 is the bonus she received.

1216 is the total she earn from her job.

Answer:

answer can vary

Step-by-step explanation:

it can be 4,5,6,7,8

answer

it can be 4,5,6,7,8.

Answer:

the pole is 24 feet tall

Step-by-step explanation:

the mirror make every thing half its size

Answer: 2x + y < 7

Step-by-step explanation:

In the graph we can see that:

The line is a dashed line, and the shaded area is below the dashed line, then we will have something like:

y < a*x + b

We also can see that the slope of the line is negative, and that the y-intercept is +7

Then the inequality will be something like:

y < a*x + 7

Now we can see that the line passes through the points (0, 7) and (3, 1)

Then the slope will be:

a = (1 - 7)/(3 - 0) = -6/3 = -2

that is negative, as we already said.

Then we have:

y < -2*x + 7

we can rewrite this as:

2x + y < 7

This is the first solution shown.

Answer: 2 inches in width

Step-by-step explanation:

4 - 6

divide both by 2

2 - 3

The width of a similar photo comes to be 2 inches.

Width of original photo = 4 inches

Height of the original photo = 6 inches

Height of the scaled photo = 3 inches

A scale factor is a number that multiplies (“scales”) a quantity.

Scale factor = height of scaled photo/ height of the original photo

Scale factor= 3/6 = 1/2

So, the width of the scaled photo = scale factor * width of the original photo

The width of the scaled photo = (1/2)*4

The width of the scaled photo =2 inches.

Therefore, the width of a similar photo comes to be 2 inches.

To get more about scaling visit:

https://brainly.com/question/25722260

Answer:

7+x

Step-by-step explanation:

the prefix bi means two there for two variables just like in the word bicycle which means two wheels

Answer:

the correct selling price is $10

And, the error is that the manager put the markup percentage as a selling price instead of adding up the markup to the cost price

Step-by-step explanation:

The computation is shown below:

Given that

Markup = 25%

Cost of an item = $8

Selling price of an item = $2

Based on the above information

The amount of markup would be

= 25% × 8%

= $2

Now amount after markup is

= $2 + $8

= $10

Hence, the correct selling price is $10

And, the error is that the manager put the markup percentage as a selling price instead of adding up the markup to the cost price

Answer:

part A:The correct selling price is $10

Part B:And, the error is that the manager put the markup percentage as a selling price instead of adding up the markup to the cost price

Step-by-step explanation:

Step-by-step explanation:

Given:

Distance between to cities = 500 mi

Two cars left simultaneously moving towards each other.

The speed of one car was 10 mph greater than the speed of the other car.

They meet in 5 hours.

To find:

The speed of each car.

Solution:

Let x mi/h be the speed of one car.

So, speed of second car = (x + 10) mi/h

Two cars left simultaneously moving towards each other.

So, their relative speed = x + (x+10) = (2x+10) mi/h

We know that,

[tex]Speed =\dfrac{Distance}{Time}[/tex]

On substituting the values, we get

[tex]2x+10=\dfrac{500}{5}[/tex]

[tex]2x+10=100[/tex]

[tex]2x=100-10[/tex]

[tex]2x=90[/tex]

Divide both sides by 2.

[tex]x=\dfrac{90}{2}[/tex]

[tex]x=45[/tex]

Now,

Speed of one car = 45 mi/h

Speed of other car = 45+10

                                = 55 mi/h

Therefore, the speeds of two cars are 45 mi/h and 55 mi/hr.

Answer:

As you can see, these are all set up in slope intercept form (with a y-intercept of 0). These equations are called "direct variation" because y varies directly with x. If x increases, then y increases as well. If x decreases, then y decreases.

Step-by-step explanation:

As you can see, these are all set up in slope intercept form (with a y-intercept of 0). These equations are called "direct variation" because y varies directly with x. If x increases, then y increases as well. If x decreases, then y decreases.

Answer:

12xy

Step-by-step explanation:

Each term is separated by a function sign. In this case, an addition symbol.

Answer:6 kilometers

Step-by-step explanation:

Answer: 6 kilometers

Step-by-step explanation: if 1 centimeter = 2 kilometers, than you would take 3 and multiply it by 2

Answer:

corresponding

Step-by-step explanation:

2 is not in the interior

The only numbers in the interior is 4, 11, 6, and 13

So crossing those two options we are left with corresponding