Mathematics College

A) 9x^2-1
B)9x2-6x+1
C)3x^2-1
D) 3x-1

Answers

Answer 1

Answer:

Step-by-step explanation:

Related Questions

Help now fast please

Answers

2y64xxy43x686ex4226xe

Help! GHJ Café sells Medium and large coffees to locals in Downtown Dallas. If 7 medium cups and 10 large cups of coffee are sold, the café makes $68.75 in sales. If 10 medium and 15 large cups are sold, the total sales is $101.25. How much does a large cup of coffee sell for at GHJ Café?

Answers

Answer:

Large cup cost $4.25

Step-by-step explanation:

Medium: x

Large: y

Constraints:

7x + 10y = 68.75

10x + 15y = 101.25

Isolate y variable:

(7x + 10y = 68.75) * -10 ===> -70x - 100y = -687.50

(10x + 15y = 101.25) * 7 ===> 70x + 105y = 708.75

____________________

add the two equations 5y = 21.25

divide by 5 y = 4.25

Circle the reason for each of the following manipulations used to simplify the product (8x^2) (3x^7) ?

Answers

Answer:

fgd

Step-by-step explanation:

what is the sulotion of 3^2-[3-4(8-2^2]^2

Answers

Answer:

Step-by-step explanation:

PLZZZZZZZZZZZZZZZZ
Solve each equation for the variable. Show every step in your work

-5x+12=20

Answers

Answer:

x = -(8/5) or -([tex]\frac{8}{5}[/tex])

Step-by-step explanation:

-5x+12=20

-5x=20-12

-5x=8

x = -(8/5) or -([tex]\frac{8}{5}[/tex])

Answer:

×=(-1.6)

Step-by-step explanation:

First we want to subtract 12

Subtraction property of euality

-5x=8

Division property of equality

x=(-1.6)

Have to find x and y . Please help!

Answers

Answer:

Step-by-step explanation:

x can be anything so let’s use 0, 1, 2, and 3 for x values

to find the y values, we just plug in the x values into the equation

when x = 0

y = 5/4(0) -2

y = 0 -2

y = -2

(0, -2) (x = 0, y = -2)

when x = 1

y = 5/4(1) -2

y = 5/4 -2

y = 5/4 -8/4

y = -3/4

(1, -3/4) (x = 1, y = -3/4)

when x = 2

y = 5/4(2) -2

y = 10/4 -2

y = 5/2 -4/2

y = 1/2

(2, 1/2) (x = 2, y = 1/2)

when x = 3

y = 5/4(3) -2

y = 15/4 -2

y = 15/4 -8/4

y = 7/4

(3, 7/4) (x = 3, y = 7/4)

Answer:

Table shown below

Step-by-step explanation:

Table of Values

We are given the function:

[tex]\displaystyle y=\frac{5}{4}x-2[/tex]

And it's required to fill the table of values for x and y with the condition that there are only integers.

Given the expression has a denominator of 4, to ensure there are no decimals in the results, we select values of x that are multiple of 4.

Select the values: {-4,0,4,8}

Now calculate the corresponding values of y.

x=-4

[tex]\displaystyle y=\frac{5}{4}(-4)-2=-5-2=-7[/tex]

y=-7

x=0

[tex]\displaystyle y=\frac{5}{4}(0)-2=0-2=-2[/tex]

y=-2

x=4

[tex]\displaystyle y=\frac{5}{4}(4)-2=5-2=3[/tex]

y=3

x=8

[tex]\displaystyle y=\frac{5}{4}(8)-2=10-2=6[/tex]

y=8

The filled table is shown in the attached image

ANSWER PLEASE 15 pts.
A box of $100 sanitizing wipes costs $12 . How much does one wipe cost?

Answers

Answer:

One wipe is worth $[tex]8.33[/tex].

Step-by-step explanation:

[tex]100[/tex] divided by [tex]12 = 8.33[/tex]

Answer:

8.33

Step-by-step explanation:

Kiley had a piece of bamboo skewer that measured 14 inches long. She wanted to cut it into toothpicks that were each 3 inches long. How many toothpicks can she make?

Answers

Answer:

4 toothpicks

Step-by-step explanation:

14 inches divided by 3 inches equals 4 toothpicks plus 2 inches of extra leftover.

a line through (2.4) with slope 0

Answers

y=4 is going to be the answer.

Answer:

y= 4

Step-by-step explanation:

y-b=m(x-a)

y-4=0(x-2)

y-4=0

y=4

Are the expressions equivalent?
A. 7.4(12,5 – 8,4)=37, 4x4; 1
B. 596 +6=? 25+ 30c
C. 3(36-2=286-5

Answers

B

Bc I said it’s b ;)

Kate is 17 years old and victor is 12 years younger. In how many years will kate be twice as old as victor

Answers

Answer:

In 2 years

Step-by-step explanation:

When Kate turns 20, Victor will be 10.

20 is twice as much as 10 (10*2=20)

hope this helps!

Answer:

In 7 years Kate will be twice as old as Victor

Step-by-step explanation:

Victors age: 17-12=5

Kate's age:17+7=24

Victors age:5+7=12

24 divided by 2 equals to 12.

~~~~~~~

Check your answer

5+12=17

24-7=17

[tex]x = \frac{8 \times 3}{2 \times 3} \\ [/tex]

[tex]x = \frac{8}{2} \\ [/tex]

[tex]x = 4[/tex]

♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

Someone help asap

Enter the your answer in the box provided to fill in the black space that will make the equation true.

____(3 + 4) = 36 + 48

Answers

Answer:

12 will come in the blank

Step-by-step explanation:

Distributive property is used

a(b + c) = a*b + a*c

36 + 48 = 12*3 + 12*4

= 12(3 + 4)

How can the figure below be changed so that it has exactly one lines of symmetry?
B
C
D
Move point Done unit to the left.
Move point C two units to the right.
Move point B one and one-half units to the left.
Move point A one unit to the right.

Answers

Answer:

Mov

Step-by-step explanation:

move point b one and one half units to the left

if p =(3
) and q=(-1 -3) find such that p-
q + 2r =(8 11)

Answers

Answer:

i RLLY DON"T KNOW

Step-by-step explanation:

In Exercises 1-3, graph AABC and its image after a reflection in the given line.
1. A(0, 2), B(1, -3), C(2, 4); x-axis
1.
2. A(-2,-4), B(6,2), C(3. – 5); y-axis
3. A(4, -1), B(3, 8), C(-1, 1); y = -2

Answers

Answer:

1. Point A: (0, 2)

Point B: (-1, -3)

Point C: (-2, 4)

2. Point A: (-2, 4)

Point B: (6, -2)

Point C: (3, 5)

3. Point A: (4, -3)

Point B: (3, -12)

Point C: (-1, -5)

Step-by-step explanation:

Reflection of point A:

Reflections over the x-axis are really easy. All you have to do is change the x-coordinate to the opposite sign.

In this case, 0 does not need to change since it already lies on the x-axis.

The coordinate for A will stay the same as (0, 2).

Reflection of point B:

Again, change the x-coordinate to negative.

1 → -1

The coordinate for B will now be (-1, -3).

Reflection of point C:

2 → -2

The coordinate for C will now be (-2, -4).

Reflection of point A:

Reflections over the y-axis are also really easy. This time, all you have to do is change the y-coordinate to the opposite sign.

In this case, -4 would change to just 4.

The coordinate for A will stay the same as (2, 4).

Reflection of point B:

Again, change the y-coordinate to negative.

2 → -2

The coordinate for B will now be (6, -2).

Reflection of point C:

-5 → 5

The coordinate for C will now be (-1, 5).

This is going to be a bit harder than the previous two, but I know you can handle it. :)

Reflection of point A:

The x will stay the same and only the y will change.

Take the y-coordinate and subtract it from the reflection line while getting the absolute value..

|(-1) - (-2)| = |1| = 1

This means, point A is one unit down the line y = -2

(-2) - 1 = -3

The coordinate for A will now be (4, -3).

Reflection of point B:

Again, the x will stay the same and only the y will change.

Using the absolute value, get the y-coordinate and subtract it from the reflection line again..

|(8) - (-2)| = |10| = 10

This means, point A is five unit down the line y = -2

(-2) - 10 = -17

The coordinate for B will now be (3, -12).

Reflection of point C:

I think you get the gist of it.

|(1) - (-2)| = |3| = 3

(-2) - 3 = -5

The coordinate for C will now be (-1, -5).

The red triangle is the original image and the blue triangle is the image after the reflection. The purple line is the reflection line.

Hope this helped!

The graph of Exercises 1-3 that shows AABC and its image after a reflection in the given line can be done using the example from the graph attached.

What is reflection about?

A reflection over line is known to be a kind of transformation where each point of the main or original figure (that is the pre-image) is said to be made up of an image that has similar distance from the reflection line.

Note that In a reflection, the image is said to be of similar size and also of the same shape as the original image.

Therefore to be able to construct the graph of Exercises 1-3, one can use the image example by tracing the number values such as A(0, 2), B(1, -3), C(2, 4); x-axis, A(-2,-4), B(6,2), C(3. – 5); y-axis and A(4, -1), B(3, 8), C(-1, 1); y = -2 on the graph and linking them up together to form an angle.

Learn more about graphing from

https://brainly.com/question/24696306

#SPJ2

Write the equation of the line that is PARALLEL to y = -4x + 5 and passes through the point (-2,-1)

Answers

Answer: y = -4x-9

Step-by-step explanation:

parallel slope means it's the same slope as the given equation

y+1=-4(x+2)

y+1 = -4x-8

y = -4x-9

HELP PLEASE!!!!
Subtract: 7/8−1/2
14
38
58
34

Answers

Answer:

7/8 - 1/2

= 0.37

hope it helps!

Evaluate the expression for x = 3, y=13, and z = 5.

12x−3y/4x−z

plz help

Answers

Hiya! The answer is 5.

I hope I was of assistance! #SpreadTheLove <3

Given that I pint = 0.5 quarts, complete the conversion 76 pints= ?

Answers

Answer:

Step-by-step explanation:

38 quarts

Since 1 pint equals 0.5, we multiply 0.5 with 76:

0.5 x 76 = 38

76 pints equals 38 quarts

your welcome :) (btw can you please give brainly)

When Hana goes to the mall, she always buys the same lunch and also buys some books. The table shows the number of books she buys, x, and the total amount of money she spends, y.

x 1 2 3 4 5
y 17 21 23 26 34
If this data were displayed in a scatter plot, select ALL statements that would be true about a good trend line summarizing the data.

Group of answer choices

The slope approximates the cost of Hana's lunch.

The y-intercept approximates the average cost of one book.

The y-intercept approximates the cost of Hana's lunch.

The slope approximates the average cost of one book.

The trend line goes through the origin.

Answers

Scatter plots are used to represent data of dual numerical values.

The true statements about the scatter plot of Hana's purchase are:

The slope approximates the average cost of one book. The y-intercept approximates the cost of Hana's lunch.

I've added as an attachment, the scatter plot that represents Hana's purchase.

From the attached plot, we have the following observations

The x-axis represents the number of booksThe y-axis represents the amount spent

Because the x-values represents the number of books, the slope of the graph would represent the cost of a book.

The amount spent on a meal is constant;

This amount can be gotten when the number of books is 0;

In other words, the y-intercept represents the cost of Hana's meal.

Hence, the true statements are: (c) and (d)

Answers

Answer:

Step-by-step explanation:

Please help! Find X:
5

31

10

60

Answers

Answer:

x=10

Step-by-step explanation:

log x = log(x + 3) - log(x - 1)

Answers

First note that log(x) is defined only for x > 0; log(x + 3) for x > -3; and log(x - 1) for x > 1. So if we find any solutions x ≤ 1, these will be extraneous.

Condense the right side:

log(x) = log((x + 3) / (x - 1))

Let b be the base of the logarithm. Then writing both sides as powers of this b simplifies the equation to

b^log(x) = b^log((x + 3) / (x - 1))

x = (x + 3) / (x - 1)

Solve for x :

x (x - 1) = x + 3

x ² - x = x + 3

x ² - 2x - 3 = 0

(x - 3) (x + 1) = 0

x - 3 = 0 or x + 1 = 0

x = 3 or x = -1

We throw out x = -1 because it's less than 1, so the only (real) solution is x = 3.

Please find attached photograph for your answer.

What is the measure of angle DEC?

Answers

Answer:

Step-by-step explanation:

dct equals 140, dct also equal det plus edc, so 140 - 45 = 95

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A) 9x^2-1 B)9x2-6x+1 C)3x^2-1 D) 3x-1

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A) 9x^2-1
B)9x2-6x+1
C)3x^2-1
D) 3x-1