Mathematics High School

3x2 - 5x + 2
5x² – x-6
Which of the following is the sum of the two
polynomials shown above?
A) 8x2 - 7x - 4
B) 8x² + 7x - 4
C) 8x - 7x² - 4
D) 8x4+ 7x2 - 4

Answers

Answer 1

Answer:

This qn is mistake i think so while addind this 2 eqn the ans is 8x2-6x-4

Related Questions

please help as soon as popssible ill give thanks and brainliest

Answers

don’t go to that link

HELPPPPPPPPPP

The point (-10,4) is on the graph of which of these functions? Select ALL that apply.​

Answers

3 Answers: Choice B, choice D, choice E.

===========================================================

Explanation:

We'll plug x = -10 into each equation shown. If we get y = 4 as an output, then it is one of the answers.

------------------------------

A)

y = -x^2 + 6

y = -(-10)^2 + 6

y = -100 + 6

y = -94

We don't get y = 4, so we cross choice A off the list.

The point (-10,4) is not on y = -x^2+6. Instead, the point (-10,-94) is.

------------------------------

B)

y = (-1/2)*x - 1

y = (-1/2)*(-10) - 1

y = 5 - 1

y = 4

We can see that x = -10 leads to y = 4. The point (x,y) = (-10,4) is on the line. Choice B is one of the answers.

------------------------------

C)

y = (-1/10)*x - 3

y = (-1/10)*(-10) - 3

y = 1 - 3

y = -2

Choice C is not one of the answers since we want y = 4 as an output. So we can cross choice C off the list.

The point (-10,-2) is on the line instead of (-10,4)

------------------------------

D)

y = (1/10)x + 5

y = (1/10)*(-10) + 5

y = -1 + 5

y = 4

Choice D is one of the answers

------------------------------

E)

y = (1/5)*x^2 - 16

y = (1/5)*(-10)^2 - 16

y = (1/5)*(100) - 16

y = 20 - 16

y = 4

Choice E is one of the answers

------------------------------

An alternative method is to graph each equation and see if (-10,4) is on the curve or not. See the diagram below. Only choices B, D and E have (-10,4) on their respective curves.

one class of 28 students has a ratio of 3 girls to 4 boys. if this ratio holds true for the entire 6th grade of 140 students, how many girls are there

Answers

Answer: 105 girls because the ratio from girls to boys is 3:4 and that means that 3/4 are girls so 3/4 times 140 is 105

Step-by-step explanation:

If Noreen had let the water run for 2 minutes instead of half a minute, do you think she would still find that she used 320 cups of water during her 10-minute shower

Answers

Answer:3

Step-by-step explanation:

There is 5 yellow 3 red 4 green 2 blue and 2 white what is the probability of picking white then green

Answers

Answer:

2 (I think)

Step-by-step explanation:

4-2=2

Answer:

1/30

Step-by-step explanation:

the probability of picking white is 2/16 simplified to 1/8

the probability of picking a green would equal to 4/15

notice that it is not 4/16, because you already picked out one of the colours, and you are not replacing it, so if you take it out, then there is 15 left to pick from.

you would then multiply

1/8 x 4/15

= 4/120

simplified to

1/30

The square has an area of x^2-10x+25 what is the side length

Answers

Answer:

(x-5)

Step-by-step explanation:

Factors to be (x-5)^2 so each side is (x-5)

I have and a math test in an hour and a half. It’s about algebraic word problems. Can someone help me. I’m really struggling in maths

Answers

Hello,

First of all, relax and take a deep breath right before you start.

Alright, so algebraic word problems are tricky sometimes. I am glad I don’t have to do them much. Once you understand more or less what to do, you should be fine!

I would need an example problem if you have one.

If not, then remember that you have to work with what you know, which is what you can start with and what you need to end with.

For instance, a phone company sells phones at $900 each. For a family discount, after 2 phones are bought, each additional phone is $100 off.
Find an expression representing the phone company’s prices.
2*900 + (900x - 100x)

x represents how many additional phones were bought.

If a family bought 6 phones:
2*900 + (900x - 100x)
2 in front and 4 as x gives 6
That expression becomes

2*900 + [900(4) - 100(4)]
= $5000

I hope that helped!

Find the output, b, when the input, a, is 6.
b=17a

Answers

I think 11 hope this is the answer

Triangle ABC is reflected over the x-axis. What are the coordinates of the image of the vertex A?

Answers

the correct answer would be d (2,-5)

Find the gradient of the line segment between the points (-2,3) and (-4,-2).
Give your answer in its simplest form.

Answers

Given:

The two points are (-2,3) and (-4,-2).

To find:

The gradient of the line segment between the given points.

Solution:

The gradient is also known as slope.

The slope formula:

[tex]m=\dfrac{y_2-y_1}{x_2-x_1}[/tex]

The endpoints of the line segment are (-2,3) and (-4,-2). So, the gradient of the line is

[tex]m=\dfrac{-2-3}{-4-(-2)}[/tex]

[tex]m=\dfrac{-5}{-4+2}[/tex]

[tex]m=\dfrac{-5}{-2}[/tex]

[tex]m=\dfrac{5}{2}[/tex]

Therefore, the gradient of the given line segment is [tex]m=\dfrac{5}{2}[/tex].

What is the next term of the geometric sequence?
81 27
255
9.

Answers

F(0) = 243
F(n+1) = f(n) /3

Rondel's parents borrow $5000 from the bank for a new car. The interest rate is 6% per year. How much simple interest will they pay if they take 2 years to repay the loan?

$600.00
$500.00
$480.00
$540.00

Answers

Answer:

600

Step-by-step explanation:

6 percent of 5000 is 300. 300x2=600.

Sorry if im wrong

help me please !
i will give you ten points

Answers

40 minutes, and 320 minutes i think

Answer:

a=40 and b=320

Step-by-step explanation:

Hi so first you want to find how much it travels in 1 hour so you do

120/3=40

to find how fast it travels in 8 hours you do 40*8=320

hope it helps

whats the scale factor

Answers

Answer:

2 1/12

Hope that helps!

Step-by-step explanation:

Answer:

2.5

Step-by-step explanation:

Chelsea earns $30 per day plus $5 for every sale that she makes at her job. On Thursday, she wants to earn at least $60.

Complete the steps below.

Answers

Inequality:
60=30+5x
-30. -30
30=5x
/. /
5. 5
6=X
Solution:6=x
Interpretation: subtract 30 from both sides. Then you are left with 30 on one side and on the other 5 divide both sides by 5 and then you have your answers.
Hope this helps please tell me if im right or wrong. :)

What is the relationship between 30 hours and 15 hours?

Answers

Answer:

3

Step-by-step explanation: 15 divided by 3 is 5, 30 divided by 3 is 10

Milton took an elevator to the top of the Empire State Building in New York City and decided to walk down the steps to the bottom level. The building is 103 levels tall, and it takes Milton exactly 5 seconds to make his way from one level to the next. The equation below shows the level (l) that Milton is on after s seconds. `l\ =\ -\frac{1}{5}s\ +\ 103`

Answers

Answer:

thx

Step-by-step explanation:

PLEASE HELP WILL GIVE BRAINLIEST
Use characteristics of quadratic functions to graph = − 1 2 x 2 − 2 + 1
a) Identify the axis of symmetry. ___________________
b) Find the coordinates of the vertex. ___________________
c) Graph the function using the table below. Plot at least five points.
d) Identify the domain of the function. ___________________
e) Identify the range of the function. ___________________

Answers

Answer:

A =25  

b =35

c = 120

e = 310

Help plssssss it due today

Answers

Answer:

C

Step-by-step explanation:

If I am correct the answer is c

Solve the equation: -29.5u+548=2,023

Answers

Answer:

U=-50

Step-by-step explanation:

Please answer!!! I’ll make brainliest

Answers

Answer:

Cant see it but if you want to answer go to their profile click on it, go to her question page and go press her latest question.

Help please I don’t understand

Answers

Answer:

x=0.75645 in radians

x=43.34175 in degrees

Step-by-step explanation:

cos(x)=8/11

Answer:

approximately 46.66

Step-by-step explanation:

label the following sides as 11=h and 8=o.

circle the missing angle x

remember SohCahToa

since you have h and o that means you are using (sin) on your calculator and since the angle is missing you do the inverse of sin multiplied by (8/11)

micheal has 3 quarters, 2 dimes, and 3 nickels

Answers

Answer:

$1.10

explanation:

Answer:

In total that is $1.10

Step-by-step explanation:

What is the area of the regular pentagon below?

Answers

Answer:
42 yd (hope it helps)

Determine if the two triangles are congruent. If they are, state how you know.

AAS
SAS
HL
Not enough information

Answers

Put not enough info it doesn’t show for the rest of those other AAS S A. AS and hi that it has informed ation

Find the percent of the number. 38% of 22 is

Answers

38% of 22 is 8.36                  

sjkbgdfbskxdbnc(answer too short)

Answer:

8.36

Step-by-step explanation:

22=%100

22x38=836

836/100=8.36

Alejandro bought 6 notebooks and 2 binders for $23.52. Cassie bought 3 notebooks and 4 binders for $25.53. What was the cost, in dollars, of 1 notebook?​

Answers

Answer:

1 notebook $2.39

Step-by-step explanation:

n=notebook     b= binder

6n +2b =23.52

3n +4b = 25.53

MULTIPLY THE FIRST BY -2 AND ADD BOTH

-12n -4b = -47.04

3n + 4b = 25.53

(b is eliminated since 4b -4b=0)

-9n =  -21.51

9n = 21.51

n = 2.39

Simplify

-36 + x < 8

Answers

Step-by-step explanation:

add 36 to both sides to cancell out -36

-36+36=0

8+36=44

x<44

so all values for x are less than 44

Hope that helps :)

Please give brainliest

Help !!!! I’m kinda confused

Answers

It would be 14 because 3x is the bisect of BD and 42 is

Find the slope of the line that passes through each pair of points (3,2) (8,12)

Answers

Answer:

The slope is 2

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