What is the sum of -3x2 - 7x + 9 and -5x² + 6x – 4?

Answers

Answer 1

Answer:

-8x^2-x+5

Step-by-step explanation:

hope this helps! ^w^


Related Questions

Please help! Quickly!!!!

Answers

Answer:

72, 48

Step-by-step explanation:

Each segment would be worth 12 hours. 6*12 is 72, 4*12 is 48. 72+48 is 120.

your friend volunteered 48 and you volunteered for 72 hours

A restaurant keeps eggs in a rack that has 5 layers. Each layer has 5 rows, with 5 eggs in each row. How many eggs does each 5-layer rack hold?

Answers

Answer:

The answer is 125 eggs.

The total number of eggs required will be 125.

What is an expression?

The mathematical expression is the combination of numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.

Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also be used to denote the logical syntax's operation order and other properties.

Given that a restaurant keeps eggs in a rack that has 5 layers. Each layer has 5 rows, with 5 eggs in each row. The number of eggs will be calculated as:-

Number of eggs = 5 x 5 x 5

Number of eggs = 125

Therefore, the total number of eggs required will be 125.

To know more about an expression follow

https://brainly.com/question/3188652

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Analyze the student’s work. Is the answer correct? Explain.

Ik its not B

Answers

Answer:

im not 100 percent sure but i think he right

Step-by-step explanation:

Answer:

A: No, the student should have added 3 + 4 to get the total number of sections, and used the fraction 3/7

Step-by-step explanation:

Edge 2022

The table below shows the population of different duck species at a local pond. Which term best describes the total number of Mallards in the pond?

Duck Pond Samples
Sample 1
Sample 2
Mallard
13
Mallard
12
Wood Duck
4
Wood Duck
2
Green Wing Teal
6
Green Wing Teal
6
American Widgeon
2
American Widgeon
5
Mallard population
duck population
proportion of Mallards
sample of Mallards

Answers

Answer:

A

Step-by-step explanation:

Answer:

A) Mallard population

Step-by-step explanation:

Esther is participating in a walk-a-thon. She Complete the statements.
will raise 5 dollars for her charity for each lap The equation is
she walks
As the number of
increases, the
Let l = the number of laps she walks
number of
also increases
Let d = the number of dollars she raises
Laps
1 2 3 4.
(1)
Dollars
5
10 15 20
2

Answers

Answer:

As the laps increases so does the dollar amount

Step-by-step explanation:

correct on edge

Answer:

1: d=5l

2: laps

3: dollars

Step-by-step explanation:

Got it right on edge.

i didn't realize i could edit so i put the answer below also.

5.
The model represents the equation 3x - 2<4.
11:00 - 0000
What is the solution for this inequality?
Oxx-2
0x<-3
0x<6
0x<2
Copyright 2020
O
O

Answers

Answer:

Solving the inequality [tex]3x -2 < 4[/tex] we get [tex]\mathbf{x<2}[/tex]

Option D is correct option.

Step-by-step explanation:

We need to solve the inequality [tex]3x -2 < 4[/tex] and find value of x

Solving the inequality for finding value of x, we will keep x on left side of inequality and all other terms on the right side.

[tex]3x -2 < 4[/tex]

Adding 2 on both sides

[tex]3x -2+2 < 4+2\\3x < 6[/tex]

Now, we will divide 3 on both sides

[tex]\frac{3x}{3}<\frac{6}{3}\\x<2[/tex]

So, we get x < 2

Solving the inequality [tex]3x -2 < 4[/tex] we get [tex]\mathbf{x<2}[/tex]

Option D is correct option.

1.
(2x3 - 5x2 + 3x + 7) = (x - 2)
a) 2x3 - x2 + x + 9
b) 2x2-x+1
C) 2x2 - x + 1 + 9/x-2
d) 2x2_9x - 15 - 23/x-2

Answers

The correct answer is b

What is the smallest integer for which the inequality 120-8x<-16

Answers

Answer:

[tex]x > 17[/tex]

Step-by-step explanation:

[tex]120 -8x < -16\\- 120\\\frac{-8x}{-8} < \frac{-136}{-8}\\x > 17[/tex]

Choose the correct zeros for the following quadratic function.
f(x) = x^2 + 5x - 14
A. {1,3}
B. {4, -3}
C. {2, -7}
D. {2, -1}

Answers

Answer:

I'm pretty sure its C

Hope that helps :)

(x+7)(x-2)=0
x=-7,2

The answer is C

Determine which quadrant each point will be located (-8,2)

Answers

Answer:

The point (-8, 2) is in Quadrant 2.

Step-by-step explanation:

Quadrant 1: (x, y)

Quadrant 2: (-x, y)

Quadrant 3: (-x, -y)

Quadrant 4: (x, -y)

Answer:

The point, -8,2, will be located in quadrant II.

Fred has 5 3/4 feet of yarn he will use 1/8 foot of yarn for each decoration he makes what's the greatest number of decorations can Fred make

Answers

Answer: Tthe greatest number of decorations can Fred make = 46

Step-by-step explanation:

Total yarn = [tex]5\dfrac34[/tex] feet [tex]=\dfrac{23}{4}[/tex] feet

Yarn required for each decorartion = [tex]\dfrac18[/tex] foot

The greatest number of decorations can Fred make = (Total yarn) ÷ (Yarn required for each decorartion)

[tex]=\dfrac{\dfrac{23}{4}}{\dfrac{1}{8}}\\\\\\=\dfrac{23}{4}\times8\\\\=23\times2\\\\=46[/tex]

Hence, the greatest number of decorations can Fred make = 46

PLZ HELP!!!!!!! (20 points)

Which of the sets of ordered pairs represents a function? (4 points)

A = {(−4, 5), (1, −1), (2, −2), (2, 3)}
B = {(2, 2), (3, −2), (9, 3), (9, −3)}

Group of answer choices

Only A

Only B

Both A and B

Neither A nor B

Answers

Answer:

Neither A nor B

Step-by-step explanation:

The set of pairs, where the front member of every sequence pair must be unique.

Triangle DEF is shown below.


The measure of angle D is 50⁰, the measure of angle E is 80⁰, and the measure of angle F is 10x . What is the value of x ?

Answers

Answer:

Step-by-step explanation:

13

what is the best estimate for 142.45 ÷ 7.4

Answers

Answer:

19.25

Step-by-step explanation:

Answer:

19.25

Step-by-step explanation:

how to write the sum of b and 10 is equal to 24

Answers

b+10=24. That is the answer

Sarah was thinking of a number. Sarah doubles it and gets an answer of 4.5. What was the original number?

Answers

Answer:

2.25

Step-by-step explanation:

Just half 4.5 and you should get 2.25 which is quite easy to be honest

Answer:

2.25

Step-by-step explanation:

4/5/2=2/25

Please help!!!
What is the solution to this equation?
x- 15 =8
OA. X = -7
OB. X = 23
OC. X = 7
OD. X = -23

Answers

Answer:

23

Step-by-step explanation:

X - 15 =8

+ 15 +15

15+8=23

23-15=8

X =23

Josie has 4 books and a pencil box in her backpack. Each book weighs 12.235 ounces and the pencil box weighs 8.25 ounces. How much do the contents of Josie's backpack weigh?

Answers

Answer:

57.55 ounces

Step-by-step explanation:

Given data

Each book weighs 12.235 ounces

Hence the weight of 4 books is

=12.235x4

=49.3 ounces

Each pencil weighs 8.25 ounces

Hence the weight of 4 books is

=8.25x1

=8.25ounces

Total weight is

=49.3+8.25

=57.55 ounces

Solve 5/2 x > 5. Graph the solution.

Answers

Answer:

x > 2

see photo

CHIPS Some tortilla chips can be modeled by a triangle.
(6x + 3) mm
(2y + 4)
27 mm
(2y + 4

Answers

The value of x and y in the given model of triangle are 4 and 28 respectively.

What is an equilateral triangle?

An equilateral triangle is a triangle in which all sides are equal and angles are also equal. The value of each angle of an equilateral triangle is 60°.

Given a tortilla chips that can be modelled as a triangle,

The sides and angles are labelled equal, so the given chips is an equilateral triangle

6x+3 = 27

6x = 24

x = 4

And, 2y+4 = 60°

2y = 56

y = 28

Hence, The value of x and y in the given model of triangle are 4 and 28 respectively.

For more references on equilateral triangle, click;

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Consider the linear equation y = 2x - 4. Write an equation in slope-
intercept form for a line parallel to the given line through (-1,6).

Answers

Answer: y=2x+14

Explanation:
Y=mx+b
Y= 2x-4
M=2

Y= 2x+b

2 = (2 x -6) + b
2=-12+b
12+2=12+b
-12
14=0+b
14=b

Y=2x+14

Order the ratios from least to greatest
5.8
11:16
18:32
Least
Middle:
Greatest

Answers

Answer:

Least:

✔ 18:32

Middle:  

✔ 5:8

Greatest:  

✔ 11:16

This should be right hopefully this helps!

Simplify the expression. -5/8(-3/8-1/4) ​

Answers

Answer:

25/64

Step-by-step explanation:

To get this answer, first you need to use the distributive property:

(-3/8)(-5/8) - (1/4)(-5/8)

Next, multiply:

15/64 - (-5/32)

Change the negative signs into a positive sign:

15/64 + 5/32

Multiply 5/32 by 2 on both top and bottom:

15/64 + (5)(2)/(32)(2)

You will then get:

15/64 + 10/64

Now, add the numerators. You will get:

25/64

This is your answer. I hope it helped!

I WILL GIVE BRAINLIEST..... The perimeter of a triangle is 22cm. if one of the sides is 9cm, find the other sides if the area of the triangle is 20.976cm2​

Answers

other sides are 6 and 7.

Find the sum.
(12p+ 9) + (4p - 3)
A. 12p+ 6
B. 16p+6
C. 16p+ 12
D. 16p - 6
SUBMIT

Answers

Answer:

B. 16p+6

Step-by-step explanation:

Answer:

B . 16p + 6

Step-by-step explanation:

12p + 9 + 4p -3

collect like terms

(12p + 4p) + (9 - 3)

16p + 6

Which statements about circle O are true? Select three options. The radius of circle O is 13. The diameter of circle O is 34. LP is a diameter of circle O. ∠LMP intercepts a semicircle. The measure of arc LP is 90°.

Answers

Answer:

The radius of circle O is 13

LP is a diameter of circle O.

∠LMP intercepts a semicircle.

Step-by-step explanation:

The missing image is attached in the diagram below.

From the diagram;

we can determine the length LP by using the Pythagoras theorem.

i.e.

hypotenuse² = opposite² + adjacent²

LP² = ML² + MP²

LP² = 24² + 10²

LP² = 576 + 100

LP = [tex]\sqrt{676}[/tex]

LP = 26

Since line LP cuts the circle into two equal halves, we can say the line LP is the diameter of circle O.

if the diameter (LP) = 26

Then, the radius r = 26/2 = 13

The radius of circle O is 13.

Similarly, the arc LMP is 180° (∵ inscribed angle is 1/2 the measure of central angle), and LMP is 180°, then ∠LMP intercepts a semicircle.

Answer: A) The radius of circle O is 13.

              C) LP is a diameter of circle O.

              D) ∠LMP intercepts a semicircle.

Step-by-step explanation:

om edge

Kailey writes 40 words per minute. How many words does she write in
3.5 minutes?

Answers

Answer:

140

Step-by-step explanation:

3.5×40=140

.........................

Answer:

140 words

Step-by-step explanation:

You need to get from 40 words a minute to _____ words in 3.5 minutes. You get from 1 minute to 3.5 minutes by multiplying by 3.5. You then do the same thing to 40 to make it proportional.

Whats 42.12500 rounded to the nearest whole number?

Answers

42.13 or just 42 I think
42.13 am not sure sorry

in the trepezium,a=7cm,b=10.4cm and h=6.7cm.work out the area of the trepezium.​

Answers

Answer:

58.29

Step-by-step explanation:

1/2 × (7+10.4) × 6.7

= 58.29

Gwendolyn can run the 100-meter dash in ¾ seconds. Francine’s best time is 18.65 seconds. How much faster is Gwendolyn than Francine in the 100-meter dash?

Answers

Answer:

Gwendolyn is faster than Francine by 2.9 seconds.

Step-by-step explanation:

15 3/4= 15.75

18.65- 15.75= 2.9

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