Which of the following functions is quadratic?

Answer:

If you are given the measure of each interior angle (162 degrees) of a regular polygon. how many sides does the polygon have? If you look at a pentagon first where the interior angle is 108 deg then you see. The angle at the center is 180-162=18 deg and 360/18=20 so the polygon has 20 sides.

Answer:

309

Step-by-step explanation:

5z-1, z=62

5(62)-1

310 - 1

309

The difference of the expression is 6x² - 15x - 4.

Mathematical expressions consist of at least two numbers or variables, at least one arithmetic operation, and a statement. It's possible to multiply, divide, add, or subtract with this mathematical operation. An expression's structure is as follows:

(Number/variable, Math Operator, Number/variable) is an expression.

We have the Expression as

(4x² - 12x + 6) and (10 + 3x -2x²)

Now, simplifying the expression

= 4x² - 12x +6 - (10 + 3x -2x²)

= 4x² -12x+ 6 -10 -3x + 2x²

= 6x² - 15x - 4

Thus, the simplified expression is 6x² - 15x - 4.

Learn more about Expression here:

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Answer:

I dont really know what it is id help but im confused

Step-by-step explanation:

Answer:

3.33 or 3

Step-by-step explanation:

10 divided by 3 = 3.33 (it goes on) Or maybe you can't pour a third of a cup so maybe 3 or 4.

Answer:

Step-by-step explanation:

4%

Answer:

False

Step-by-step explanation:

plug -2 in for x. 3(-3)-4=-10 and -10 isn't 10 so false.

(can I get brainliest please)

Answer:

False

Step-by-step explanation:

f(x) = 3x-4

f(-2) = ?

Substitute -2 for x in the given equation

f(-2) = 3(-2)-4

f(-2) = -6-4

f(-2) = -10

-10= 10

FALSE

Answer:

3/5

Step-by-step explanation:

15 / 5 = 3; 25/5 = 5 ; the answer is 3/5 or 0.6

Step-by-step explanation:

4x-5≥7

4x≥7+5

4x≥12

x≥12/4

x≥3

•-------------------------------------------------------------->

__________________________________________________

0 1 2 3 4 5 6 7 8 9 10

hope it helps!

Answer:

The equation that determines Carissa's weekly wages is W = 450 + 16.83 × V

Step-by-step explanation:

The given parameters are

The amount Carissa earns per week  = $450

The amount Carissa earns for each overtime hour = $16.83

Where the given variables are;

W = Her weekly wages

V = The number of overtime hours worked

Therefore, the equation that would be used to determine her weekly wages is given as follows;

W = 450 + 16.83 × V.

Answer:

The answer is C.

Step-by-step explanation:

The < sign means that it will be less than so you can remove A and D. But it's not B either because of the $2 off coupon. Off means you would be subtracting meaning it'll look like this 5x < 3x - $2. So the correct answer is C.

Hope this helps!

The inequality is transformed into a sentence will be the cost of 5 notebooks is less than the cost of 3 notebooks plus a $2 pen. Then the correct option is C.

Inequality is defined as an equation that does not contain an equal sign. Inequality is a term that describes a statement's relative size and can be used to compare these two claims.

The act of converting mathematical equations into a specified statement is known as equation-to-sentence transformation.

The inequality is given below.

5x < 3x + 2

The inequality is transformed into a sentence will be the cost of 5 notebooks is less than the cost of 3 notebooks plus a $2 pen. Then the correct option is C.

More about the inequality link is given below.

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Answer:

4:3

Step-by-step explanation:

16:12=8:6=4:3

Answer:

4:3

Step-by-step explanation:

16 and 12 can both be divided by 4

16/4 = 4 12/4 = 3

so your simplified ratio is 4:3

Answer:

30 cents

Step-by-step explanation:

24=1.20

6=x

Algebra here to solve.

1.20=24

x=6

Divide by 4

1.20÷4=$0.3

$0.3=30 cents

Answer:

14 sweets

Step-by-step explanation:

5x+35

x=7

7*4=28

(28-10)/2=7

7+7=14

Answer:

3-5 One line passes through the points (0, -4) and (-1 ... Write the equations in slope intercept form and then ... -2x = 9y-18? Dlugo a. ... Cy= - 4x + 13 Dy= 4r + 23.

Step-by-step explanation:

NOOOOOOOOOOOOOOOOOOOOOO  NEED

Answer:

(0, 2)

(9, 6)

Step-by-step explanation:

  slope intercept form y = mx + b:

      9y - 4x = 18        ===>       y = 4/9x + 2

              Pick any point for x to get y:

                   If x = 0, then y = 2    

                   If x = 9, then y = 6

above are just two of many but you should get the idea

Answer:

he is going 10 mph and the equation is 1x = 10y

Answer:

$1.50

Step-by-step explanation:

Given the total weekly pay of Hector modeled by the equation;

y = 10(8.5 + x)

We are to find the amount of Hector's raise per hour x given the total oay y = $100

Substitute y = 100 into the equation and find x  as shown;

y = 10(8.5 + x)

100 = 10(8.5+x)

100/10 = 8.5 + x

10 = 8.5 + x

x = 10 - 8.5

x = 1.5

Hence the amount of Hector's raise per hour is $1.50

Answer:

i cant answer it without x or at least some more stuff in the question, the only thing i can rlly say is 9x+2 maybe

Step-by-step explanation:

Answer:

20

Step-by-step explanation:

Answer: 5 is made up of 5 times 1 of 5 ×4 = 20. A more mathematical way is to actually do this as a division problem of two fractions. 5 = 5 1. so divide 5 1 by 1 4. 5 1 1 4. This is a complex fraction make it simpler by multiplying both sides by the inverse of 1/4 which is 4/1.

Step-by-step explanation: Hope This Helps!!

From: Kageyama! <3 No need to thank me, it's what I do! ^^

Hello! Lets take a look.

To do this problem you would have to divide.

"75/9"

So what is the answer to that?

8!

Answer/Step-by-step explanation:

✔️Equation for line a:

Line a is a vertical line, hence, the slope is undefined. Equation of a vertical line is given as x = k. Where k is the x-intercept and would remain the same irrespective of the corresponding y-coordinates of all the other points on the vertical line.

In line a, the x-intercept is -4. Therefore, the equation for line a would be:

✅ x = -4

✔️Equation for line b:

Line b is also a vertical line, and would be represented as x = k.

The value of k is the point olwhere the line intercepts the x-axis.

Thus, k = 4.

Equation for line b would be:

✅ x = 4

✔️Equation for line c:

Line c is an horizontal line. Slope (m) of a horizontal line is always 0.

It can be represented in slope-intercept form, y = mx + b, where,

m = slope = 0

b = y-intercept = 4 (this is where the y-axis is intercepted by the line)

Thus, substitute m = 0, b = 4 in y = mx + b.

The equation for line c would be:

y = (0)(x) + 4

✅y = 4

✔️Equation for line d:

Slope (m) = 0

y-intercept (b) = -2

Substitute m = 0, and b = -2 in y = mx + b

Equation for line d awould be:

y = -2

✔️Equation for line e:

Slope (m) = [tex] \frac{rise}{run} = -\frac{3}{4} [/tex]

y-intercept (b) = 1

Substitute m = -¾, and b = 1 in y = mx + b

Equation for line e would be:

✅y = -¾x + 1

Answer:

1000

Step-by-step explanation:

Answer:

4 and 6

Step-by-step explanation:

Answer:

(2, 8)

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Equality Properties

Algebra I

Step-by-step explanation:

Step 1: Define Systems

r = 4s

r = 1/2s + 7

Step 2: Solve for s

Substitution

Step 3: Solve for r

Answer:

s = 2

r = 8

Step-by-step explanation:

subsitution is were you plug in a systerm into the other problem

since they give you R = 4s you take 4s and plug it in were r is in the other equation (subsitution)

so now you have 4s = 1/2s+7

now you want to solve for s so your going to subtract 1/2s from both sides to cancle out the 1/2s --> 4s - 1/2s = 7 --> 3 and 1/2s = 7

now divide both sides by 3 1/2 to get s alone s = 7/3 and 1/2

s = 2

now we have s we take that and plug it into r = 4s

subsitute S as 2  --> r = 4(2)

r = 8