Mathematics High School

HELP I ONLY HAVE 5 MIN TO TURN THIS IN!!!!!!!!!!!
What are the simplified versions of the expressions shown below

WILL MARKBRAINLIEST!!!!!!!!!!!!!!!!!!!!!!!!!

HELP I ONLY HAVE 5 MIN TO TURN THIS IN!!!!!!!!!!!What Are The Simplified Versions Of The Expressions

Answers

Answer 1
1)2x^2-11x-7
2)3x^2-x+7
3)4x^2+2x+9
Answer 2

Answer:

see below

Step-by-step explanation:

1. (x² - 4x - 10) + (x² - 9x + 3)

=  x² - 4x - 10 + x² - 9x + 3

=  x² + x² - 4x - 9x + 3 - 10

= 2x² - 13x - 7

4. (3x² - x + 1) + (15 - 9x - 2x²)

=  3x² - x + 1 + 15 - 9x - 2x²

= 3x² - 2x² - x - 9x + 1 + 15

= x² - 10x + 16

7.  (6 - 2x + 7x²) - (10x - 3 + 3x²)

=   6 - 2x + 7x² - 10x + 3 - 3x²

=  7x² - 3x² - 2x - 10x + 6 + 3

=  4x² - 12x + 9

Related Questions

what is
-4/3(12k + 27) = -57 - 9k

Answers

Answer:

Step-by-step explanation:

-16k - 36 = - 57 - 9k

-36 + 57 = - 9k + 16k

21 = 7k

21/7 = k

3 = k

Which of the following statements is true about the three quadrilaterals?

a. D and E are similar but not congruent.
b. E and F are similar and congruent.
c. D and E are similar and congruent.
d. F and D are similar but not congruent.

Answers

a. D and E are similar but not congruent.

Charlotte wants to know which website gains more new subscribers per amount of content. 1) Charlotte thought of two different ways to define this quantity. Identify these two definitions among the following options. Choose 2 answers: Choose 2 answers: (Choice A) A Number of new subscribers divided by number of writers (Choice B) B Number of new subscribers divided by number of likes (Choice C) C Number of new subscribers divided by number of posts (Choice D) D Number of new subscribers divided by number of words 2) Determine which website gains more new subscribers per amount of content according to the two definitions. Did you get the same result for both definitions? Choose 1 answer: Choose 1 answer: (Choice A) A Yes. According to both definitions, website A gains more subscribers per amount of content. (Choice B) B Yes. According to both definitions, website B gains more subscribers per amount of content. (Choice C) C No. The definitions have opposite results.

Answers

Answer:

1)

Number of new subscribers divided by number of posts.

Number of new subscribers divided by number of words.

2)

No. The definition have opposite results

Step-by-step explanation:

Khan academy said it was right tehee

Answer:

Step-by-step explanation:

number of new subscribers divided by posts

number of new subscribers divided by the number of words

no the definitions have opposite results.

Tara has two bags of marbles. The first bag contains 6 red marbles, 5 blue marbles, and 4 green marbles. The second bag contains 3 red marbles, 2 blue marbles, and 4 green marbles. Tara will randomly select 1 marble from each bag.

What is the probability that Tara will select a blue marble from each bag?

Answers

Answer:

The first bag,  1 in 3 and the second, 2 in 9.

Step-by-step explanation:

If there are 15 total marbles in the first bag, and 5 blue, there is a 5 in 15 chance, or 1 out of 3 chance she could pull a blue out of the first bag. The second bag, has 9 in total and 2 blue, so there is a 2 in 9 chance she could pull out a blue from the second bag. Hope this helps!

Answer:

2/27

Step-by-step explanation:2/27

In the school library, there are 110 fiction books, 250 nonfiction
books, and 125 magazines. The ratio of fiction books to magazines is 110 : 125.
Write the ratio of fiction books to magazines as a fraction, a decimal, and a
percent.

Answers

Answer:

110/125 = 22/25

0.88

%88

Step-by-step explanation:

It's basic math.

lin swims 10 laps in a pool in 25 minutes how many laps per minute is that

Answers

Answer:

2.5 laps per minute

Step-by-step explanation:

A picnic favorite is strawberry Shortcake! Each batch of strawberry
shortcake calls for 1 2/5 pounds of cake and 3/4 pound of strawberries. If
you want to make 5 batches of strawberry shortcake, how many pounds
of cake and strawberries do you need to buy?

Answers

Answer:

To make 5 batches of strawberry shortcake you'll need 7 pounds of cake and 3 3/4 pounds of strawberries for a total sum of 10 3/4 pounds.

Step-by-step explanation:

1 - Write an equation to represent the problem

For every batch, it takes 1 2/5 pounds of cake and 3/4 pounds of strawberries

therefore

[tex]Let \\\ n_c = pounds~of~cake \\\n_s = pounds~of~strawberries \\\b = number~of~batches[/tex]

[tex]n_c = 1 \frac{2}{5}b \\\n_s = \frac{3}{4}b[/tex]

For ease of math, lets convert these to decimals

[tex]n_c = 1.4b \\\n_s = 0.75b[/tex]

2 - Plug in your variables to solve for cake and strawberries

Cake

[tex]n_c = 1.4b \\\ n_c = 1.4(5)\\n_c = 7[/tex]

To make 5 batches of strawberry shortcake you will need 7 pounds of cake

Strawberry

[tex]n_s = 0.75b \\\n_s = 0.75(5) \\\n_s = 3.75[/tex]

to make 5 batches of strawberry shortcake you will need 3.75 or 3 3/4 pounds of strawberries --- Totalling in at 10.75 pounds or 10 3/4

Hope this helps :)

Write the equation of the line that is perpendicular to y = -2x + 4 and goes through the point (6, 5). Show all work for credit.

Answers

Answer:

y = 1/2x + 2

Step-by-step explanation:

The slope of a perpendicular line is the opposite reciprocal of the original line.

-2 -> 1/2

Find the new y-intercept with the point we are given (6, 5).

y = 1/2x + b

5 = 1/2(6) + b

5 = 3 + b

2 = b

Fill in everything we solved for back into the orignal formula.

y = 1/2x + 2

Best of Luck!

I worked on the project until it was completed.

Identify the subordinate clause in the complex sentence.

I worked on the project
on the project
it was completed
until it was completed

Answers

The subordinate clause would be “until is was completed”

Answer:

until is was completed

Step-by-step explanation:

d on edgnuity

answer this just tell me the color

Answers

Answer:

yellow

Step-by-step explanation:

what is the answer to 6(-⅔) =

Answers

Answer:

-4

Step-by-step explanation:

6 × [tex]-\frac{2}{3}[/tex] = -4

I hope this helps!

What is the slope of the line with the following coordinates from the
table?

Answers

1/8 is the slope.
(y2 - y1)/(x2 - x1)

Answer: The slope is 1/8

Step-by-step explanation:

The x values go up by 8. That gives the run.

the y values go up by 1. That gives the rise.

Slope is rise/run  SO

1/8 is the slope.

Graph attached.

Helpp pls it’s 25 points each

Answers

Answer:

1.= 2.5

2.= is incorrect because there should not be more than one = sign

Step-by-step explanation:

A side of the triangle below has been extended to form an exterior angle of 125°. Find the value of xx.

Answers

Answer: 55

Step-by-step explanation:

x+125=180

subtract 125 on each side

when you do that 125 cancels out and your left with

180-125=55

The value of x from the given triangle is 55°.

Given that, a side of the triangle below has been extended to form an exterior angle of 125°.

What are adjacent angles?

Adjacent angles are those angles that are always placed next to each other in such a way that they share a common vertex and a common side but they do not overlap each other.

From given figure, the exterior angle of tringle is 125° and x is adjacent angle to that.

Now, 125°+x=180°

⇒ x=180°-125°

⇒ x=55°

Hence, the value of x from the given triangle is 55°.

To learn more about the adjacent angles visit:

https://brainly.com/question/12838185.

#SPJ2

John has a part-time job. He is payed £6.80 per hour. This week he worked for 9 and a half hours. Work out John's total pay for this week.

Answers

Answer:

£64.6

Step-by-step explanation:

Multiply £6.80 by 9

£61.2

Now divide £6.80 by 2

£3.4

Add £3.4 to £61.2

The answer is £64.6

(I think)

Hope this helps :)

-5 + (-10)
Find the sum please and thank you!

Answers

Answer:

It is the -15 one I think

Answer:

The answer is -15 (A)

Step-by-step explanation:

The question shows that the two numbers are negatives, and the symbol is in addition. when you add negative numbers, the sum will be lower than both negatives. So -5 plus -10 is -15 (A).

Find the slope of the line passing through the points ( -9, 3) and (6, 3)

Answers

Answer:

M=0

Step-by-step explanation:

You want to use the formula (y2-y1)/(x2-x1). To do this, subtract 3-3/6- -9 and that is your slope. So the slope is 0/15.

Simplify the expression: 2x – 3x (5x – 8) – 4r (x - 2)​

Answers

Answer: –4rx –15x^2 + 8r + 26x

Step by step:

= 2x + −15x^2 + 24x + −4rx +8r

= (−4rx) + (–15x^2) + (8r) + (2x+ 24x)

= –4rx + –15x^2 + 8r + 26x

PLEASE HELP ME PLEASE!!!

Answers

Answer:

cant not see the photo honey

Step-by-step explanation:

Answer:

For point (1, -2): -2 = -1 - 1 = -2. Therefore, point (1, -2) lies on the graph of the equation.

The graph of the equation is the set of points that are solutions to the equation.

A coordinate pair on the graph of the equation is a solution to the equation.

For the point (0, -1): -1 = -(0) - 1 = 0 - 1 = -1.

Therefore, The point ( 0, −1 ) lies on the graph of the equation.

Step-by-step explanation:

I feel like this wont help- qwq okay the answer is C-

Please help, Ill give brain-list Rita's Blossoms sells roses in groups of 4. Across town, Kendall's Blooms sells roses in groups of 6. If a customer wants to buy the same number of roses from both vendors, what is the smallest number of roses the customer will have to buy from each vendor?

Answers

Answer:

can u mark me as brainliest pls pls pls pls pls pls pls pls pls pls pls

Step-by-step explanation:

HAVE A GREAT DAY!!!

Determine the slope of the line that passes through the points M(-3,5) and N(1,8). Represent the slope in decimal form.

Answers

Answer:

0.75

Step-by-step explanation:

y²-y¹/x²-x¹

8-5/1-(-3)

3/4

=0.75

Which expression is equivalent to 2(m − 4) + 1?
A. 2m − 7
B. 2m − 3
C. 2m + 9
D. 2m + 10

Answers

Answer: The answer it A

2(m-4)+1

2m-8+1

2m-7

The answer is A
2(m-4)+1
You would do distributive property which you would do 2×4 which is 6+1=7 which therefore it would be

Don’t know what the answer is

Answers

Answer:

48.3 miles

Step-by-step explanation:

"each" is the key word here. When you see "each" in a word problem, you should know to multiply. 6.9 times 7 is 48.3.

Answer:

48.3 miles in 7 days

Step-by-step explanation:

Step 1:

6.9 miles × 7 days          Equation

Step 2:

6.9 × 7        Multiply

Answer:

48.3 miles in 7 days

Hope This Helps :)

Which of the following numbers is irrational?

-0.3

Answers

Answer:

-3/10

Step-by-step explanation:

help this is my last try!!!!!!!!!!!!!!!!!!!!!!!!11

Answers

Answer:

2^8=256

Step-by-step explanation:

Multiply the exponents and simplify

What is the correct answer? ​

Answers

Answer:

C)   (-3, -1)

Step-by-step explanation:

y = 5/3x + 4

  When x = 0, y = 4

  When y = 0, x = -2.4

  graph the points: (0, 4) and (-2.4, 0)

y = -2/3x - 3

  When x = 0, y = -3

  When y = 0, x = -4.5

  graph the points: (0, -3) and (-4.5, 0)

The lines will cross at point: (-3, -1)

please help need this urgently

Answers

Answer:

a

Step-by-step explanation:

Answer:

The answer is A. y=1/3x+4

Explanation:

Perpendicular means that the slope is flipped and the only answer that has -3 flipped is A.

' $1, 200 . 18 1.5%

Answers

Answer:

2178

Step-by-step explanation:

Select the correct answer.
Gio created a scatter plot and drew a line of best fit, as shown

Answers

Answer:

y=3x+5 is the answer for this question

Answer:

y= 1/3x+4

Step-by-step explanation:

The y-intercept is at 4 and the slope is 1/3

The equation of line CD is y = -2x - 2. Write an equation of a line parallel to line CD in slope-intercept form that contains point (4, 5).
y = -2x + 13
y=zx+7
y=x+3
y = -2x - 3

Answers

Answer:

y = -2x + 13

Step-by-step explanation:

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