Just need to know the unit rates ! Will make brain !!

Answer:

(-4,20)

Step-by-step explanation:

Answer:

(-5, 2)

Step-by-step explanation:

the first equation is 2x+3y=-4

2x(-5)=-10    3yx2=6   -10-6=-4          first ones correct

2x-5y=-20      2x(-5)   -5y(2)= -10-10=-20

both are correct

Answer:

104280

Step-by-step explanation:

(22×78×70×) - (22×20×36)

104280

I hope that is correct

Answer:

I'm pretty sure the answer is 4740. (Sorry if im wrong)

Step-by-step explanation:

Answer:

C)

Step-by-step explanation:

First, multiply the 2 factors that add up to 8.

1/3 x 2. Since this equation does not have one x but 2 (x and y), we will not subtract or divide any sides.

Divide and multiply 2 by 8 and 1/3. Then, we solve for y.  

y = 2/3x - 4

Hope this helps!

-kiniwih426

Answer:

number 1 is A: 8<4x+10

number 2 is i: 2x+7<5

number 3 is E: 8<3x+4

number 4 is D: 2-5x<5

Answer:

d

Step-by-step explanation:

because it's the exact value

Answer:

223.5 Km

Step-by-step explanation:

Area = Length x Width

Solving for Square Shape

8 · 6 = 48 km

Area = Length x Width

Solving for Rectangle Shape

9 · 14 = 126 km

Area = Length x Width ÷ 2

Solving for Triangle Shape

11 · 9 = 99 ÷ 2 = 49.5 Km

48 + 126 + 49.5 = 223.5 Km

Answer:

where not able to reach their goal and the sports program was able to make $260.25 and miss the mark by 39.75

Step-by-step explanation:

for the brownies 78+ for the pies 112.5 + for the doughnuts 69.75 + coming out to a total of $260.25 and they missed the mark of $300 by $39.75

Answer:

The were not able to reach their goal and they need $39.75. Hope this helps!

Step-by-step explanation:

Multiply the amount of goods by how much each thing cost.

Repeat that for each kind of good.

Add each amount together.

To find out how much more you need, subtract your starting amount form the amount you made.

Answer:

2 shoes helpful answer to your question

Answer:

shoes =18

Step-by-step explanation:

let shoes be x

ratio of bots to shoes =1:3

boots/shoes =boots/shoes

1/3 = 6/x

do cross multiplication

6*3=x

18=x

Answer:

I think it's A.

Answer:

The toy reaches the ground in 10 sec

Step-by-step explanation:

When the rocket hits the ground, h becomes zero (0).  Thus, our problem here is to solve the equation h(t) = −4.9t^2 + 50t + 2 = 0,

Because of the fractional coefficient -4.9, it's best to use the quadratic equation here.  The coefficients of the t terms are {-4.9, 50, 2}.  Thus,

the discriminant is b^2 - 4ac  = 50² - 4(-4.9)(2) = 2539.2, and the square root of this is 50.39.

The quadratic formula is as follows:

      -b ± √discriminant

t = -------------------------------

                 2a

which here is:

      -50 ± 50.39

t = ------------------------      Since t represents time, only the positive result

               -9.8                 is relevant here; it is 10.24 sec,

which rounds off to 10 sec

The toy reaches the ground in 10 sec

Answer:

yes that is a statistical question

Step-by-step explanation:

Answer:

I am unsure as it is not labeled (The number lines) , but I think it is 8, - 8. Or -8, 8. My first guess is first one though.

Step-by-step explanation:

If this is correct may I please get brainliest?

Answer:

72,900

Step-by-step explanation:

9 is in the hundreds place so therefore you should look to the left which us 3 and 3 is less than 5 so the answer is 72,900

Answer:

3

Step-by-step explanation:

Answer:

The mean is 7.5.

The median is 7.

The mode is 7.

Step-by-step explanation:

To find the mean, add up all the numbers in the data set and then divide the sum by the total number of values.

5 + 7 + 2 + 6 + 7 + 10 + 12 + 7 + 9 + 13 + 5 = 83

83 divided 11 equals 7.5.

To find the median, arrange all the numbers in the data set from smallest to largest and then find the number that is in the middle of the set.

To find the mode, put the numbers in order from least to greatest and count how many times each number occurs. The number that occurs the most is the mode.    

Answer:

C

Step-by-step explanation:

First find the area of the entire figure.

L= 36

W = 20

Area = 36 * 20 = 720

Find the area of the left right triangle.

Height = 20

Base = 1/2 * 36 = 18

Just as an aside, let me be a little grumpy for a moment. You should never have to guess what a dimension is on a diagram. It's sloppy. However for this problem you have no choice. But you could think to complain to your teacher.

Area = 1/2 * base * height

Area = 1/2 * 18 * 20 = 180

Find the area of the bottom right triangle.

The height is 1/2 20 = 10

The base is 36

Area of the lower triangle = 1/2 * 36 * 10 = 180

Area of the shaded figure = 720 - 180 - 180 = 360

Answer:

it depends on the work place to play it safe i would choose 12

Step-by-step explanation:

The sample mean is equal to 24 and population mean is equal to 25

Sample mean represents the measure of the center of the data. The sample mean formula is used to calculate the average value of the given sample data.

Sample mean= sum of the terms/number of the terms

What is population?

The population in static is used for a collection of data. The population mean can be calculated by the sum of all values in the given population divided by a total number of values in the given population.

Population mean= sum of the population/ number of the population

From the given question average of entire year is 25.

According to the population mean formula the sum of the population by number of the population is nothing but the average of the entire year. Thus the population mean is 25.

According to the sample mean formula,

sample mean= sum of the terms / number of the terms

⇒(25+10+16+39+27+25+32+25+25+22+28+14)/12 = 24

Thus the sample mean is equal to 24 and population mean is equal to 25

To know more about sample mean and population mean click here

https://brainly.com/question/26509052

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Answer:

the same number as the number of sides

lines of symmetry are in a regular polygon is the same number as the number of sides.

the correct option is (D)

A line of symmetry is a line that cuts a shape exactly in half. This means that if you were to fold the shape along the line, both halves would match exactly.

The number of lines of symmetry in a regular polygon is equal to the number of sides.

For example,

It has four lines of symmetry and four sides. A regular pentagon has 5 sides and 5 lines of symmetry.

Hence, lines of symmetry in a regular polygon is equal to the number of sides.

Learn more about line of symmetry here:

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Answer:

1) x= -1/27

2) x=-4

3) x=13

Step-by-step explanation:

1) 7+7/9x= = -42

   14/9x= = -42

  14/9x X 9x= -42 X 9x

    14= -378x

    -378x= 14

   -378x/-378= 14/-378

      x= -1/27

2) 4x+1=−15

 4x+1-1=-15-1

    4x=-16

   4x/4= -16/4

      x=-4

3) −4(x−3)=−40

 -4(x-3)/-4= -40/4

     x-3=10

   x-3+3=10+3

        x=13

Answer:

RECTANGLE

Explanation:

Answer:

Rectangle

Step-by-step explanation:

If its sliced perpendicular from its circle base, that means its cutting vertically from it since perpendicular lines form a 90 degree angle.

Answer:

Below

Step-by-step explanation:

So, the base is always going to be the bottom of our traingle, or any other shape.

The height will be what goes in the vertical direction of the base.

If your base is vertical, like: I , then your height will be horizontal, like: - .

No matter where the base is, the height will be exactly 90 degrees different(since there is a 90 degree difference between vertical and horizonatal)

Here is what I did:

HOpe this helps!