perform the indicated operation

1.(3x+8)+4x-3)
2.(7x-8)-(2x+4)
3.(5x2-8x+6)-(3x2-3x+2)

Answers

Answer 1

Answer:

1. 7x+5 2.5x-12. 3.2x^2+5x+4

Step-by-step explanation:

if you look up mathaway and put the equations in. it will tell you all the steps. hope this helps.

Answer 2

Answer:

hmmmmmmm

Step-by-step explanation:

o9ooooooooooooooo


Related Questions

in the figure below, <1 measures (3x+20) and <2 measures x. what is the measure of <4?

Answers

Answer:

D. 140

Step-by-step explanation:

∠ 1 + ∠ 2 = 180

So:

(3x + 20) + x = 180

4x + 20 = 180

4x = 180 - 20

4x = 160

x = 160 / 4

x = 40

∠ 1 = ∠ 4

∠ 2 = ∠ 3

If ∠ 1 is equal to ∠ 4, just plug in for x and solve.

3x + 20 = 3(40) + 20 = 120 + 20 = 140

an equation is often said to be like a ______________ because whatever you do to one side you must do to the other

A. problem
B. balanced scale
C. expression
D. not sure

Answers

The answer is B, a balanced scale.

just one but if u could do both then that’s great. thank you

Answers

4. loge(2.7)=x
Im not to sure about number 5

will give brainliest ​

Answers

Answer:

£29.37

Step-by-step explanation:

Type in the question- like type it. Not a screenshot, type in part of the question into the Brainly search bar and you'll find it.

30% of which number is 3?
O A. 10
B. 9
O c. 1
O D. 0.9
O E. 0.1

Answers

Answer:

The answer is letter D

Step-by-step explanation:

3 x 0.30 = 0.9

What is the solution set for this inequality
-8x + 40 > -16
A. x > 7
B. x < 7
C. x > -3
D. x < -3

Answers

Answer:

Letter c po sorry nasa daan po kasi ako kaya di po ako makakapag explain

Step-by-step explanation:

Sorry po talaga pero sigurado po ako sa sagot ko

Find the missing side
Please help thank you!!

Answers

Answer:

[tex]c= \sqrt{41}[/tex]

Step-by-step explanation:

[tex]a^{2} +b^{2} =c^{2} \\4^{2} + 5^{2} = 16 + 25 = \sqrt{41} = c[/tex]

Answer:

6.4

Step-by-step explanation:

As we can see it is a right angled triangle so

perpendicular (p)= 5

base (b) = 4

hypotenuse (h) = c = ?

we know

by using Pythagoras theorem,

h² = p² + b²

or h = √(p² + b²)

c = √( 5² + 4 ² )

c = √41

c = 6.4

hope it helps :)

A satellite dish is shaped like a paraboloid of revolution. The signals that emanate from a satellite strike the surface of the dish and are reflected a single point, where the receiver is located. If the dish is 16 feet across at its opening and 5 feet deep at its center, at what position should the receiver be placed?

Answers

18feet
We need to find the distance,c between the vertex and the focus.
For a vertical parabola:

#If we place our parabola at the center, the expression changes to:

The points of the parabola are given as (12,2), substitute in our equation to find c:

explain how urea is formed in the body​

Answers

Step-by-step explanation:

the nitrogen in the amino acid become converted to ammonia and this is further converted by the live into urea,which is less toxic than ammonia to the body.The kidneys will then filter theuera from the circulation,send it to the bladder along with water and excrete it form of urine.

What is 721295.198715 rounded to the nearest tenth

Answers

Answer:

The answer is 721295.2

Answer:

721,295.2

Step-by-step explanation:

I used the "Rounding Numbers Calculator" on Calculator Soup

Consider this equation.


sin(θ)= 3sqrt10/10


If θ is an angle in quadrant II, what is the value of tan(θ) ?

Answers

Answer:

tan x = -3 (Answer A)

Step-by-step explanation:

We want to find the tangent of this angle "theta," and recall the trig identity

(sin x)^2 + (cos x)^2 = 1.

               3√10

If sin x = -----------

                   10

                             90

then (sin x)^2 = ----------- = 9/10

                             100

and (cos x)^2 = 1 - 9/10 = 1/10

 

                      sin x       3√10/10

Then tan x = ---------- = -------------- = -3 (Answer A)

                       cos x      1√10/10

The tangent function is negative in Quadrant II.  In Quadrant I tan x = +3

Answer:

A

Step-by-step explanation:

Using the trig identity

sin²x + cos²x = 1 , then cos x = ± [tex]\sqrt{1-(\frac{3\sqrt{10} }{10})^2 }[/tex]

Given

sinθ = [tex]\frac{3\sqrt{10} }{10}[/tex] , then

cosθ = ± [tex]\sqrt{1-(\frac{3\sqrt{10} }{10})^2 }[/tex]

        = ± [tex]\sqrt{1-\frac{9}{10} }[/tex]

        = ± [tex]\sqrt{\frac{1}{10} }[/tex]

Since θ is in second quadrant where cosθ < 0 , then

cosθ = - [tex]\frac{1}{\sqrt{10} }[/tex]

Then

tanθ = [tex]\frac{sin0}{cos0}[/tex] = [tex]\frac{\frac{3\sqrt{10} }{10} }{\frac{-1}{\sqrt{10} } }[/tex] = - 3 → A

HELP ASAP!!!!
What is the volume of the following cylinder in cubic feet?



35.325 ft3
5,086.8 ft3
61,041.6 ft3
47.1 ft3

Answers

Answer:

35.325

Step-by-step explanation:

I got it right on Oddyseyware

Answer:

35.325

Step-by-step explanation:

its right on odyssey hope this help :]

Which could be the value of the third side of a triangle with sides 3 and 4? A. 3 B. 7 C. 12 D. 20. Would it be B or C

Answers

C! Hope that helps! (:

The width of a rectang:a is half of its length. If the length is 8 cm, what is
the perimeter of the rectangle?

Answers

Answer:24cm

Step-by-step explanation:

if there is 2 sides  with the same like the length is 8 and 2 sides(8*2)=16

and the width is half (8/2) =4 double for 2 sides (4*2) = 8

8+16

what does tan -1 (0.88) equal

Answers

Answer:

-1.3705187977

Please help please I need help

Answers

Answer:

9

Step-by-step explanation:

9 squared + 12 squared= 15 squared

Answer:

hi

Step-by-step explanation:

we can do this with Pthyagorean teorem

[tex] {12}^{2} + {x}^{2} = {15}^{2} \\ 144 + {x}^{2} = 225 \\ {x}^{2} = 225 - 144 \\ {x}^{2} = 81 \\ x = \sqrt{81} \\ x = 9 \: cm[/tex]

BC is 9

hope it helps

have a nice day

What’s the ratio of the surface area?
20:4
4:1
16:1
64:1

Answers

the answer of the question is 16:1

The sum of X and fifteen

Answers

x+15

depends on the value of x

Answer:

15 + X

Step-by-step explanation:

The Sum means an answer to an adition problem

is 2.36 in a percent 236%? ill mark u brainiest:-)

Answers

Answer:

yes it is

Step-by-step explanation:

because something like .56 would be 56%

and 1.02 would be 102%

hope this helped :)

Answer:

You are correct already.

good job

HELP ASAP !!!
I dont know how to do this i really need help

Answers

Answer:

1 = A

-1/3 = C

5/6 = B

I am pretty sure

Traingle ABC below has a rigth angle C and a hieght CD. If AC is 3 units long, and BC is 4, what is the lengtyh of CD

Answers

Answer:

5 units

Step-by-step explanation:

the length of CD can be determined using Pythagoras theorem

The Pythagoras theorem : a² + b² = c²

where a = length

b = base

c =  hypotenuse

3² + 4²

= 9 + 16

= 25

the square root of 25 is 5

PLEASE HELP!!!
!!!!!

Answers

Answer:

y=63, x=20, x=47, b=70, c=89, x=133

Step-by-step explanation:

1) y=63- alternate angles are the same

2) 4x+5x=180

9x=180

x=20

3) x=47

4) b=70- angles on a line equal to 180

c=89- angles in a triangle add up to 180

5) x=133- angles that are alternate are the same

At the beginning of spring, Arianna planted a small sunflower in her backyard. When
it was first planted, the sunflower was 20 inches tall. The sunflower then began to
grow at a rate of 0.5 inches per week. How tall would the sunflower be after 3 weeks?
How tall would the sunflower be after w weeks?
Height after 3 weeks:
Height after w weeks:

Answers

Answer:

3 weeks: 21.5 inches

w weeks: 20+0.5w inches

Step-by-step explanation:

Equation: 20+0.5w.

20 was when it was first planted and 0.5 is the amount it grows per week.

Calvin is filling the pool in his backyard with water. If the pool is in the shape of a cylinder with a diameter of 12 ft and a height of 5 ft, how much water is needed to fill Syntax error from line 1 column 49 to line 1 column 73. Unexpected 'mathsize'. of the pool?

Answers

Answer: 135 pi

Step-by-step explanation: I took the test

It is a three-dimensional shape with two parallel circular bases and a curve surface.

The volume of water needed to fill the pool is 180π square feet.

What is a cylinder?

It is a three-dimensional shape with two parallel circular bases and a curve surface.

Volume = π r² h

r = radius of the cylinder

h = height of the cylinder

We have,

Diameter of the cylinder = 12 ft

Radius = diameter/2 = 12/2 = 6 ft

Height of the cylinder = 5 ft

The volume of the cylinder:

=  πr²h

=  π x 6² x 5

= π x 36 x 5

= 180π square feet

Thus,

The volume of water needed to fill the pool is 180π square feet.

Learn more about cylinder here:

https://brainly.com/question/15891031

#SPJ2

Pls help, this is due today

Answers

What’s the question?
If it’s area then the formula is pi r^2
If it’s the circumference then the 2pi r or pi d

(i’m using 3.14 as pi tell me if ur pi is different)

yellow: 28.26

blue: 18.84

green: 251.2

red: 15.7

purple: 21.98

formula: C = 2pi r | C = pi d

which is the correct stem-and-leaf plot for the data set.

Answers

Answer:

I just FINISHED THESE QUESTIONS

Step-by-step explanation:

but which plot

3. given that m < APC is 104° in circle P, find the degree measure of Arc ABC​

Answers

Answer:

Answer is 256 degrees

Step-by-step explanation:

You basically take the degree that they gave you, which is 104, now take 360 (that's the measurement of the whole circle) and subtract it by 104 to get your answer.

Zahra plans to draw a triangle with angles measuring 50 degrees, 60 degrees, and 70 degrees. Which is true about Zahra’s plan?
Zahra cannot make a triangle with these angle measures.
Zahra can only draw one unique triangle with these angle measures.
Zahra can make exactly two triangles with these angle measures.
Zahra can make more than one triangle with these angle measures.

Answers

Answer:

Zahra can only draw one unique triangle with these angles

Answer:

its B:

Zahra can only draw one unique triangle with these angles

Step-by-step explanation:

I got it right

Which graph represents the solution for the equation 1/6x=-2x+5

Answers

This is easy so what I have to do is first

Twenty pounds of beans are distributed equally into 16 bags to give out at the food bank. How many pounds of beans are in each bag? Enter your answer in the simplest form. There are pounds of beans in each bag.

Answers

Answer: 1¼ pounds

Step-by-step explanation:

Since 20 pounds of beans are distributed equally into 16 bags to give out at the food bank, the amount of pounds of beans that are in each bag will be gotten by dividing 20 by 16 which will be:

= 20 pounds / 16

= 1¼ pounds

Therefore, there are 1¼ pounds of beans in each bag.

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