Mathematics High School

Perform the operation.
(x^2 + 8x + 8) + (-10x2 + 5x)

Perform The Operation.(x^2 + 8x + 8) + (-10x2 + 5x)

Answers

Answer 1

Answer:

-9x^2+13x+8

Step-by-step explanation:

Combine like terms-

(x^2 + 8x + 8) + (-10x^2 + 5x)

8x+5x = 13x

(x^2 + 8x + 8) + (-10x^2 + 5x)

-10x^2+x^2 = -9x^2

(x^2 + 8x + 8) + (-10x2 + 5x)

and 8 is just left over, so we put that all together and get...

-9x^2+13x+8

Good luck, have a great day!

Related Questions

Ok I need help there is a 1:thousands block and there is 3:hundreds 5:tens 9:ones. And I have to write it in standard form written form and expanded form! Please help

Answers

Answer: standard form is 1,359 expanded form is 1000+300+50+9

Step-by-step explanation: hope this helps :)

Divide 24x^3+2x^2−20x−6 by 4x+3.

Answers

6x^2-4x-2

Step-by-step explanation: sorry i wrote it messy

/....

Answer:

6x+1+−7x-14x2−3x+5

Simon has 3 pets. Altogether, the 3 pets have 8 legs. Each of the pets is either a bird or a dog. How many birds and how many dogs does Simon have?

Answers

Answer:

1 dog, 2 birds

Step-by-step explanation:

Birds have two legs. 2x2=4

Dogs have 4 legs. 4x1=4

4+4=8

pls help me i need it to move on i did so many i cant figure it out.

Answers

Answer:

B. Between 200 and 400

Step-by-step explanation:

Rule of exponents means that you can subtract when they are divided

-5+7=2

7.8*10^2/3.1

Simplify

780/3.1= 251.612903

A deep sea diver started at sea level (0 feet) and dove at a rate of 5.6 feet per minute. If the diver dove for ½ hour, what rational number represents his position relative to sea level? Show your work. A. 168 feet B. 2.8 feet C. -2.8 feet D. -168 feet

Answers

Given:

A deep sea diver started at sea level (0 feet).

Rate of diving = 5.6 feet per minute.

Time = [tex]\dfrac{1}{2}[/tex] hour

To find:

The rational number that represents his position relative to sea level.

Solution:

We know that,

1 hour = 60 minutes

[tex]\dfrac{1}{2}[/tex] hour = 30 minutes

A deep sea diver, dove at a rate of 5.6 feet per minute.

Distance covered in 1 minute = 5.6 feet

Distance covered in 30 minute = 30 × 5.6 feet

                                                    = 168 feet

The diver dove 168 feet in [tex]\dfrac{1}{2}[/tex] hour. Since it is below the sea level, therefore it should be negative.

So, the rational number that represents his position relative to sea level is [tex]-168[/tex] feet.

Therefore, the correct option is D.


HELP WILL MARK BRAINLIEST

Answers

Answer:

B

Step-by-step explanation:

plz help me with this :(

Answers

Answer:

40 degrees

Step-by-step explanation:

the angles are set

Answer:

I wanna say the answer is 40.

Step-by-step explanation:

Because the line going through will most likely make the same degree on the other side.

Hope this helps.

Tickets for an all-you-can-eat pancake breakfast cost $15 each. Which equation shows the relationship between c, the total cost of the breakfast tickets and t, the number of breakfast tickets bought?

Answers

Answer:

c = 15t

Step-by-step explanation:

Given that:

Unit cost of Ticket = $15

Total cost = unit cost * number of tickets purchased

Total cost = c

Number of tickets purchased = t

C = $15 * t

c = 15t

Help!!!
I will mark you brainliest for the correct answer
Please help!!!!

Answers

Its 63 because it has to add up to 180

-4r>16 I have to solve this for my math hw

Answers

Answer:

r<-4

Step-by-step explanation:

when inequality is divided by a negative number the sign changes to next direction.

HELP PLEASE! THIS IS A WORD PROBLEM 30 POINTS!!!!!

Today Jessica and Melissa are having a birthday. Both girls are at least 9 years old but not older then 16. If Melissa is 2 years older than Jessica, how old can they be? Show your work. Best response gets brainless. It can also be fastest response just show an equation.​

Answers

Step-by-step explanation:

anywhere from 9 and 11 to 14 and 16.... I feel like there is something missing in the question

Which triangles are similar to DEF?

A. ADFG
Β. ΔEGF
C. ΔFEG
D. ΔGDF

Answers

Answer:

C&B i Think this is it

enjoy dis hehehehehheh OOF

Answer:

The answer is b and c

Step-by-step explanation:

Which statements are true of irrational numbers



CLICK ALL THE APPLY:) Will mark b if correct!!!!!!!!!!!!!!!!!!!!!!!

Answers

1,2,3,5 is the correct ones I think so so you should try them

Choose the solution to this inequality. 43<−83y

Answers

Answer:

y< −43 /83

but if you want a decimal  

-0.518072

Step-by-step explanation:

Answer: A

Step-by-step explanation: this is the correct answer

In the figure ∆XYZ ≅ ∆MNL

Find m∠Y

Answers

Answer:

Step-by-step explanation:

If similar Y=N=124 degrees

Look at question....

Answers

The answer is (2,6)

Andrew salary is 4,250.00 per month plus a commission of 5%of his monthly sales.Andrew sales this month are 10,250.00. What is his total income for thins month?

Answers

Answer:

Andrew's total income for this month is $4762.5.

Step-by-step explanation:

With the information provided, you can find the total income by calculating 5% of the sales this month and adding up this amount to his monthly salary:

sales=10,250

monthly salary=4,250

10,250*5%=512.5

4,250+512.5=4,762.5

According to this, the answer is that Andrew's total income for this month is $4,762.5.

Paolo missed 3 out of 15 questions on a quiz, or 3/15. Write the fraction of questions paolo answered correctly as a decimal explain

Answers

Answer:

The decimal would be 0.2 or in percentages, 20/100.

Step-by-step explanation:

Which one is it? please be honest.

Answers

Answer:

Step-by-step explanation:

it’s b!!!! I solved it and got b for my anwser hoped this helped

Graph y > x^2 - 3.

Click on the graph until the correct graph appears.

Answers

Answer: The first one

Answer:

The first one

I need the answer for real fast. Question below

A square has a perimeter of 12x + 52 units. Which expression represents the side length of the square in units?


x + 4

x + 40

3x + 13

3x + 43

Who started the whole link thing anyways?

Answers

Answer:

It's x + 4

Step-by-step explanation:

And I don't know who started this link thing

Hope this helps and have a great day *(:^w^:)

Answer:

It's 3x + 13

Step-by-step explanation:

brainlyest ^（｀ω´ ）^ψ

i need to talk with you

52/4=13

12x/4=3x

3x+13

-4/13 divided by 20/-39​

Answers

Answer:

I don't know sowwy :c

Step-by-step explanation:

PLEASE HELP I WILL GIVE BRAINLEST, I need an answer that is 100% correct because this test determines if I'm passing or not, thank you.

Answers

Answer:

C = 150.72 cm

A = 1808.64 [tex]cm^{2}[/tex]

Step-by-step explanation:

circumference = 2π[tex]r[/tex]

r = 24 (48 ÷ 2)

substitute 24 for r

C = 2 × 3.14 × 24

C = 150.72

Area = π[tex]r^{2}[/tex]

r = 24

substitute 24 for r

A = 3.14 × [tex]24^{2}[/tex]

A = 3.14 × 576

A = 1808.64

circumference = π x d
= 3.14 x 48
= 150.72 cm

radius =48 divide by 2
= 24
area = π x r x r
= 3.14 x 24 x 24
= 1808.64 cm2

Which shape shows the cross-section of the square pyramid when it is cut by a plane parallel to the base?

Answers

Answer:

Triangle

Step-by-step explanation:

A pyramid is a strong-solid shape that is comprised of triangles, square shapes, squares, and different polygons. Pyramids are arranged depending on the state of their base. For instance, the outline given is a square-based pyramid in light of the state of its base(which is a square). Different sorts incorporate the three-sided based pyramid, three-sided based pyramid, and other polygon-based pyramids.  

In the event that this square pyramid is cut with a plane that is corresponding to the base of the pyramid, the state of its cross-area will be a triangle since the shapes that are corresponding to the base are altogether triangles. So slicing the plane corresponding to the base is like removing one side of the triangle making up the pyramid.

Next Question I only have 40 minutes to complete the rest of these. Help Asap Please. Again I will award 100pts and Brainly to whoever can get me the slope intercept form to these two cordinate points. This is timed. And I risk failing the class if I don't get these questions answered. Plz help.

Answers

Answer:

y=-2x+1

Step-by-step explanation:

First, you calculate the slope, which is rise over run: -9+5 / 5-3 = -2.  Then, find b by substituting the coordinates (of either one point) into the slope-intercept formula, y = mx + b.  

Answer:

Step-by-step explanation:

The slope intercept form of a line is

y=mx+b, where m=slope and b= y intercept

The slope of a line is defined as

m=(y2-y1)/(x2-x1), in this case we have points (3,-5) and (5,-9)

m=(-9-(-5))/(5-3)

m=-4/2

m=-2, so our line is now

y=-2x+b, using point (3,-5) we can now solve for b

-5=-2(3)+b

-5=-6+b

1=b so the completed line is

y=-2x+1

Can someone help me plz

Answers

Answer:56.55

Step-by-step explanation:

[tex] \bf \underline{ \underline {Given}}[/tex]

Radius = 9 cm

[tex] \bf \underline{ \underline{To \: find \: out }}[/tex]

Find the circumference of given circle.

[tex] \bf \underline{ \underline{Formula \: used}}[/tex]

[tex] \sf \: Circumference \: of \: circle = 2 \pi \: r [/tex]

[tex] = 2 \times \dfrac{22}{7} \times 9[/tex]

[tex] = \dfrac{44}{7} \times 9[/tex]

[tex] = \dfrac{396}{7} [/tex]

[tex] = 56.57 \: cm[/tex]

A car salesman makes 14.5% commission on his sales. If he sells a car for $45,000, how much will he make in commission?

Answers

Answer:

23

Step-by-step explanation:

plsss help i’ll give brainliest if you give a correct answer

Answers

Answer: x = 7

Explanation:

Subtract 8 from both sides to isolate x.

x + 8 = 15

x + 8 -8 = 15 - 8

x = 15 - 8

x = 7

Answer:

X=7

Step-by-step explanation:

have a good day /night

Drag the symbol to complete the solution to this inequality.

Answers

Answer:

b po

i hope makatulong eto

The sum of two numbers is 55 and the difference is 25. What are the numbers?

Larger number:
Smaller number:

Answers

Answer:

large number = 40

smaller number = 15

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