are any of you in the 9th grade and good with math? 2 (x2 - 3) + x (x - 7)

Answers

Answer 1

Answer:

[tex]3x^{2} - 7x - 6[/tex]

Step-by-step explanation:

[tex]2x^{2} - 6 + x^{2} - 7x[/tex]

[tex]3x^{2} - 7x - 6[/tex]


Related Questions

(3x^2-8+3X)-(10+2x^2-2X)

Answers

Answer: x^2+5x-18

Step-by-step explanation:

If an 8-sided spinner is labeled with 2As, 2Bs, 2 ones, and 2 twos. What is the sample space for the probability model

Answers

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Leah read 1/2 of a book in the morning, and she read some at night. By the end of the day, she still had 2/5 of The book to read left. How much of the book did Leah read at night?

Answers

Answer:

1/10

Step-by-step explanation:

First, you have to get common denominators, so we will use 10. She read 5/10 in the morning, so that is 5/10 of the book left. 2/5 = 4/10 left, so if you added those two numbers up, you only get 9/10. So this means that she read 1/10 at night. I hope this helps!

Explain your answer !!

Have a great day

Will give brainlst

Answers

It is unevenly distributed with the soil because over the year and states it changes around the country.

Write the equation of the line in slope-intercept form that has a slope of -5/2 and passes through the point (14,-39)

Answers

Answer:

Step-by-step explanation:

The equation of the line in point-slope form;

y+39 = (-5/2)(x-14)

Rearrange to solve for y:

y+39 = (-5/2)x + 35

y = (-5/2)x + 4

what is the variable in the expression 3y+8​

Answers

Answer:

y

Step-by-step explanation:

Variables are letters or symbols in an equation that represent a value we do not know.

In this equation, there is a y. y is not a number, but a letter, meaning this is the value we do not know, or the variable.

Answer:

y

Step-by-step explanation:

It is y because 8 will be constant and 3 will be a term I think and i know for y is variable

Determine the domain of the following graph:

Answers

-8 (is less than or equal to) x ( which is less than) 3
Or [-8,3)

Marcus daims that in the expression 3x + 3y, the terms 3x and 3y are like terms because both are variable terms and both have the same coefficient. Is Marcus correct? Explain​

Answers

Answer:

Step-by-step explanation:

3x and 3y are not "like terms," despite having the same coefficient.

Like terms have the same variable. For example, 3x and 2x are like terms, so

3x+2x = 5x

What is the perimeter of this shape

Answers

9514 1404 393

Answer:

  72.6 cm

Step-by-step explanation:

It is the perimeter of the overall rectangle plus twice the depth of the notch.*

  P = 2(L+W) +2d

  P = 2(16 cm + 13 cm + 7.3 cm) = 2(36.3 cm)

  P = 72.6 cm

The perimeter of the shape is 72.6 cm.

_____

* You may be able to visualize this if you imagine the bottom (top) of the notch translated out (down) to the edge of the rectangle. That translation does not affect the length of the line segment, but helps convince you that only the two legs of the notch are added to the perimeter of the rectangle.

For t=2, 13t-2t is equal to 22 and 2t - 13t is equal to ??

Answers

Answer:

[tex]2(2) - 13(2) \\ 4 - 26 \\ = - 22[/tex]

What is the equation of the line in slope-intercept form 

Answers

Answer:

y=3/5x+3

3 is where the line goes through the y-axis

3/5 is the slope (rise/run)

Step-by-step explanation:

choose the points that lies in the line and do the above process.

Help me.. People who are just trying to get points by just spamming peoples questions, will be reported

Answers

Answer:

I'd say half

Step-by-step explanation:

· y = 3x - 7
Find the slope

Answers

Answer:

3

Step-by-step explanation:

the slope of an equation (y=mx+b) is always "m", or the coefficient right infront of x. in this case, y=3x-7, 3=m, -7=b. m is the slope, so the slope is 3.

the correct answer is 3 because is the right slope

What are your plans for the future?Which profession would you like to pursue and why?​

Answers

i plan on attending collage, and getting my masters degree. i would like to become a nurse! i want to be a nurse to help people and be able to know i’m doing something good!!

Answer:

I plan to finish my degree first and pursue my dreams of becoming a pilot, because that thing will help me and my family aside from that it's like I'm free to do whatever I want.

anyone know this ......

Answers

Answer:

4/1

or its 1/4

Step-by-step explanation:

it is 4/1.

it is a positive slope because it changes from the left going up to the right, therefore making any options with a fraction incorrect.

find the area of a triangle with a base and height of 1/3 and 1/4

Answers

Answer: 1/12

Step-by-step explanation:

Multiply 1/3 by 1/4. Or just multiply 3 by 4.

3 x 4 = 12

Therefore, the answer is 1/12.

Pls help me jenejfnnfnwndndbenjwjdndnwkjs

Answers

19 in is less than 2yrds and 4in.

Answer:

I have no clue

Step-by-step explanation:

HAHA

What is the y-intercept of the line given by the equation y = 8x + 75?
A. (0,75)
B. (0,-8)
C. (0, -75)
D. (0,8)​

Answers

Answer:

The answer is A.

Step-by-step explanation:

In a linear equation, y = mx + b where b represent y-intercept.

y-intercept is the point where it touches y-axis, so the value of x is 0.

The y-intercept of the given equation is (0, 75). Therefore, option A is the correct answer.

What is a y-intercept?

In Maths, an intercept is a point on the y-axis, through which the slope of the line passes. It is the y-coordinate of a point where a straight line or a curve intersects the y-axis. This is represented when we write the equation for a line, y = mx+c, where m is slope and c is the y-intercept.

The given equation of a line is y=8x+75.

To find the y-intercept, set x = 0 and solve for y.

Here, substitute x=0 in y=8x+75, we get

y=8(0)+75

y=75

So, the y-intercept is (0, 75)

Therefore, option A is the correct answer.

To learn more about the y-intercept visit:

brainly.com/question/14180189.

#SPJ7

Eighteen hats are packaged in 2 boxes. How many hats are packaged in 7 boxes? Justify your answer.

Answers

Answer:

63

Step-by-step explanation:

2 ways: 18/2 = 9   9 times 7 is 63

18 times 3 =54 plus 9 (because 18/2 is 9) is 63

Pizza Guy pizza delivery time for a pizza is
approximately normally distributed with a
mean of 22 minutes and a standard deviation
of 5. Pizza Guy guarantees delivery within 30
minutes or the pizza is free. What percent of
customers will get a free pizza?
a) 3.5% b) 4.5% c) 5.0% d) 5.5% e) 6.5%

Answers

Answer:

5.5%

Step-by-step explanation:

the pizza is free 5.5 so he need to deliver the pizza on time

There is an unknown number of people at the beginning of lunch. Then...

Each student had 3 friends come sit with them, tripling the amount.
Then the entire group divided into 4 groups, and all but one group left and went outside, so only 1 fourthof the total students were left in the lunchroom
7 more people came into the lunchroom
The total number of people in the lunchroom at the end of lunch was 16

Answers

Answer:

5.25

Step-by-step explanation:

can someone please help

Answers

Answer:

31.5

Step-by-step explanation:

P=a+b+c=10.5+10.5+10.5=31.5,

Solve the equation
t−3.7=1.2

Answers

Answer:

t=4.9

Step-by-step explanation:

Answer:

t=4.9

Step-by-step explanation:

t-3.7=1.2

t-3.7+3.7=1.2+3.7

t=4.9

Ally picked 25 roses. She gave away 10 roses. What percent of the roses does Ally still have?

Answers

Answer:

25%

Step-by-step explanation:

25%, hopefully this helps, stay safe !

CAn you help witht this fast!

Answers

Answer: 150% sugar

Step-by-step explanation: Make a proportion.

150% sugar sorry if I’m wrong

2. Select all of the numbers that Courtney could multiply by 72,033 to get a product LESS than 72,033 (2 Points)
A. 1 and 3/4
B.718
C.2
D. 1/6
E. 12/8​

Answers

Answer:

Step-by-step explanation:

It's not A since that means 1 3/4 or 7/4. That isn't a possible answer since 7/4 is greater than 1.

B: not the answer. You'll make 72000 almost 1000 times bigger if you use B.

C: same reason as B. Anything over 1 will make 72033 larger, not smaller

E: 12/8 > 1. It can't work.

The answer is d . Try it on your calculator. Anything between 0 and 1 make make any number smaller. (include zero, don't include 1).

while shopping for clothes Jaclyn spent 38 less than 2 times what Daniel spent. Jaclyn spent $10. Writes and solve an equation to find how much Daniel spent. Let x represent how much Daniel spent.

How much did Daniel spend?

Answers

38-(2•x)=10 < equation
$14 < Dylan spent

2x−y=5 If x=4, then y=

Answers

Answer:

Y = 3

Step-by-step explanation:

2(4) = 8

Subtract 8 on both sides

-y = -3

Y=3

A quadratic function is described by the equation f(x) = (x - 3) ^ 2 Which statement about the graph of the function is true?
A The only zero of the function is 3 which is where the graph of the function intersects the x-axis
В. The only zero of the function is 3 which is where the graph of the function intersects the y-axis.
C.The only zero of the function is , which is where the graph of the function intersects the x-axis.
D.The only zero of the function is is where the graph of the function intersects the y-axis .

Answers

Answer: A) The only zero of the function is 3 which is where the graph of the function intersects the x-axis

Step-by-step explanation:

Remember, a quadratic function which has roots x = a, and x = b, can be written as:

p(x) = A*(x - a)*(x - b)

Where A is the leading coefficient. This is the factorized form of a quadratic.

We have the function:

f(x) = (x - 3)^2

Now, we could rewrite this as:

f(x) = (x - 3)*(x - 3) = 1*(x - 3)*(x - 3)

Then we wrote f(x) in its factorized form, from this, we can see that the roots of the function are x = 3, and x = 3 (we have the same root two times)

Then the only root of f(x) is x = 3.

Remember that a root (also called a zero) is the value of x where the function intersects the x-axis. then the correct option here is:

A) The only zero of the function is 3 which is where the graph of the function intersects the x-axis

t-shirts for $2 and shorts for $4. the total sales were $600. they sold four times more tshirts than shorts how many tshirts and shorts did they sell?​

Answers

Answer:

T-shirts: 200

Shorts: 50

Step-by-step explanation:

To solve, set up an equation using two variables to represent the number of t-shirts and shorts sold.  Let x = t-shirts sold. Let y = shorts sold.  2x + 4y = 600.    We know that x will be 4 times greater than y, so we can plug in some guesses that seem reasonable and use the equation to test our theories.  My first guess was 50 shorts, which by luck was the correct answer.  These problems can be tricky, but setting up an equation can prove to be a great help.

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