20 point question pls help

Answer:

-14x+21

Step-by-step explanation:

-7(2x-3)

-14x+21

Answer:

-14x+21

Step-by-step explanation:

Answer:

75

Step-by-step explanation:

Answer:

- 7/4

Step-by-step explanation:

1) (y2 - y1)/(x2 - x1)

2) pick two points, mine were (1,-3) and (-3,4)

3) Substitute the values (4+3)/(-3-1)

4) Solve and no matter what points you’ll get -7/4

Answer:

m^8

Step-by-step explanation:

The number of tiles on the wall is [tex]m^{8}[/tex].

Algebra is the branch of mathematics that helps in the representation of problems or situations in the form of mathematical expressions.

Given:

number of rows = m³

number of columns = [tex]m^{5}[/tex]

Now, we have to find the number of tiles in a wall

=rows *  column

=  m³ *  [tex]m^{5}[/tex]

=[tex]m^{8}[/tex]

hence, the number of tiles in a wall is  [tex]m^{8}[/tex].

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Answer:

$12

Step-by-step explanation:

To find this, you just need to find 8 percent of 150. You can do this by multiplying 150 by .08, or multiplying 150 by 8/100.

Answer:

55%

Step-by-step explanation:

66

120

x 100% = 55%

Answer:

66 is 55% of 120

Step-by-step explanation:

66 = 120 * x%

percent just means out of 100

for example, 20% is equal to 20/100

so, x% is x/100

66 = 120 * x/100

66/[tex]\frac{x}{100}[/tex] = 120

66 * 100/x = 120

6600/x = 120

cross multiply

6600/x = 120/1

6600 * 1 = x * 120

6600/120 = x

x = 55

You want to put this in the form (x+b)^2 + c  

To do this take half of the coefficient of b from the ordinal form which is 6/2=3 as use this as your new b

This give you (x+3)^2.  

If you foil this out you get x^2 +6x +9 so you have added 9 to the original expression so now all you need to do is subtract 9 to keep things balanced  

The final expression then is (x+3)^2 -9

So c= -9

The completed square form of the original expression is (x+3)² - 9 and the value of c is -9.

To compute the square, you need to add and subtract a number inside the parentheses such that the resulting expression is a perfect square trinomial.

To determine the square of half of the coefficient of the x term, which is 3 in this case.

The square of 3 is 9, so you need to add and subtract 9 inside the parentheses to complete the square. The resulting expression will be:

(x+3)² + c

To find the value of c, you need to compare this expression to the original expression: x² + 6x + c.

The x² and (x+3)² terms are equal, so you can set them equal to each other and solve for c:

x² = (x+3)² + c

x² - (x+3)² =c

(x-x-3)(x+x+3) = c

(-3)(3) = c

-9 = c

Therefore, c = -9.

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The question seems to be incomplete the correct question would be

Complete the square:

x² +6x +c

find c

Answer: i think its a

Step-by-step explanation:

could you please do my recent brainless

Answer:

it is c

Step-by-step explanation:

Answer:

7 and 21

Step-by-step explanation:

Answer:

Fraction: 9/16

Decimal: 0.563

Answer:

Step-by-step explanation:

-1/5 x+3 ≤7

-1/5 x≤7-3

-1/5 x≤4

x≥-20

{-20,-10,0,10,20}

Answer:

40%

Step-by-step explanation:

10000 = 5000 = 50% + 9000 = 40%

Answer:

B. 9

Step-by-step explanation:

12 times 3/4 is 9

Answer:

it takes 4 of the 3/4 servings to make a whole number and it's 3 cups.

12/3= 4 and 4*4= 16

so 16 children can eat ice cream

or you could do 12/0.75= 16

you would do that because 3/4=0.75

you would divide and not multiply because you're seeing how many times 0.75 can go into 12

Step-by-step explanation:

Answer: (-3, 0) and (-2, 0)

Step-by-step explanation:

1. Factor

(x+3)(x+2) = 0

2. Check if your factoring is correct

x^2 + 3x +2x + 6 = 0

x^2 + 5x + 6 = 0

3. Look back at factors and use them to find the zeros

(x+3) - > (-3, 0)

(x+2) -> (-2, 0)

Answer:

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Step-by-step explanation:

Answer:

3 kg= 14.7

6 kg= 29.4

9 kg= 44.1

Step-by-step explanation:

The gravitational potential energy of the cylinders as follows:

3 kg: 14.7 kJ, 6 kg: 29.4 kJ, and 9 kg: 44.1 kJ

GPE is gravitational potential energy, mass is the mass of the object in kilograms, gravity is the acceleration due to gravity in meters per second squared (usually taken to be 9.8 m/s²), and height is the height of the object above the reference point in meters.

To calculate the gravitational potential energy (GPE) of an object, you need to know its mass, the acceleration due to gravity, and its height above a reference point. You can use the formula:

GPE = mass × gravity × height

In this case, the mass of each cylinder is given in the first column of the chart, and the height of the cylinders is 500 meters. However, the acceleration due to gravity is not given in the chart. We can assume that it is 9.8 m/s², but if you have a different value, you should use that instead.

Using these values, we can calculate the gravitational potential energy of the 3-kilogram cylinder as follows:

GPE = 3 kg × 9.8 m/s² × 500 m = 14700 kg m/s²

Converting this to kilojoules gives us:

GPE = 14700 kgm/s² × (1 J/1 kgm/s²) = 14700 J

Converting this to kilojoules (kJ) gives us:

GPE = 14700 J / 1000 J/kJ = 14.7 kJ

Therefore, the gravitational potential energy of the 3-kilogram cylinder is 14.7 kJ.

You can use the same process to calculate the gravitational potential energy of the 6-kilogram is 29.4 kJ and the 9-kilogram cylinders is 44.1 kJ.

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Answer:

54

Step-by-step explanation:

what u gotta do is add 46 with 8 and you can check my answer with 54-46=8

difference means you subtract

sum means you add

product means you multiply

and quotiant means you divide

The required number is 27.

Given that,
To determine the number the difference of a number and 8 is 46 less than the number

The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.

In mathematics, it deals with numbers of operations according to the statements. There are four major arithmetic operators, addition, subtraction, multiplication, and division,

Here,
Let the number be x
The difference between a number and 8 is 46 less than the number
8 - x = x - 46
2x = 54
x = 27

Thus, the required number is 27.

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Answer: x = 1

Step-by-step explanation:

Simplifying

-4(-6x + 3) = 12

Reorder the terms:

-4(3 + -6x) = 12

(3 * -4 + -6x * -4) = 12

(-12 + 24x) = 12

Solving

-12 + 24x = 12

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '12' to each side of the equation.

-12 + 12 + 24x = 12 + 12

Combine like terms: -12 + 12 = 0

0 + 24x = 12 + 12

24x = 12 + 12

Combine like terms: 12 + 12 = 24

24x = 24

Divide each side by '24'.

x = 1

Simplifying

x = 1

Answer:

Step-by-step explanation: heyy... the pic attached below shows all the steps with a brief explanation. I hope it helps u !!!

Answer:

Zero

Step-by-step explanation:

Average rate of change can also be called as gradient or change in the respective variable , in this case we need the average rate of change of y which has the function y = -7

Since this is a linear function and if we draw the graph of y = -7 the graph would be parallel to the x-axis, and any line parallel to the x-axis has slope of zero , hence the average rate of change of the function y = -7 is zero

Answer:

$9.25

Step-by-step explanation:

2.75+ .5(13)

.50 (13)= 6.5

6.5 +2.75= 9.25

Answer:

$569.50

Step-by-step explanation:

15% deduction from the initial price(100%) will have us remaining with 85%

100% = 670

85% = 85% x 670

                100%

= $569.50

Answer:

Completing the square

Put the equation into the form ax 2 + bx = – c.

Make sure that a = 1 (if a ≠ 1, multiply through the equation by. before proceeding).

Using the value of b from this new equation, add. ...

Find the square root of both sides of the equation.

Solve the resulting equation.

Step-by-step explanation:

there

Answer: Put the equation into the form ax 2 + bx = – c.

Make sure that a = 1 (if a ≠ 1, multiply through the equation by. before proceeding).

Using the value of b from this new equation, add.

Find the square root of both sides of the equation.

Solve the resulting equation.

Step-by-step explanation: Hope this helps!

Answer:

One tenth

Step-by-step explanation:

You state the number on top as is.

Numerator:

1 - one

2- two

and so on.

over the denominator

which you state as an ordinal number

2 = halves

3 = thirds

4 = fourths

5 = fifths

etc.

so 1/10 would be one over tenths but you say  one tenth.

The unit form is 0.1.

A fraction is written in the form of a numerator and a denominator where the denominator is greater that the numerator.

We have two types of fractions.

Proper fraction and improper fraction.

A proper fraction is a fraction whose numerator is less than the denominator.

An improper fraction is a fraction where the numerator is greater than the denominator.

Example:

1/2, 1/3 is a fraction.

3/6, 99/999 is a fraction.

1/4 is a fraction.

We have,

1/10

We will write it in decimal form.

= 0.1

Thus,

The unit form is 0.1.

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Answer:

C. Use a compass to draw one arc with point M at the center and intersecting point N.

Step-by-step explanation:

I took the test and got it right.

Your welcome :)

Using a compass, draw one arc with point M at the center and point N intersecting it as the first step in the typical construction of the perpendicular bisector of MN. Option C is correct.

Lines that cut through the middle of each side of a triangle and are perpendicular to the specified side are known as the perpendicular bisectors of the triangle.

The standard construction of the perpendicular bisector of MN will be,

Step 1: Sketch a line segment with any appropriate length, XY.

Step 2: Using a compass, draw arcs above and below the line segment, with X serving as the center and XY's width greater than 50%.

Step 3: Carry out Step 2 but use Y as the center. Step 4: Write "P" and "Q" next to the junction points.

Thus, using a compass, draw one arc with point M at the center and point N intersecting it as the first step in the typical construction of the perpendicular bisector of MN. Option C is correct.

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Answer:

x=-4

y=7

z=14

Step-by-step explanation:

Answer:

10

Step-by-step explanation:

zhejdjdjfkfkdjdjdjjdhdhdudisos

Answer:

2(8)+7

Step-by-step explanation:

You fill in the spots. If b = 2 then put 2 in the equation.

Answer:

23

Step-by-step explanation:

b multiplyed by c equals 16 + 7 giving you 23