PLEASE HELP ME!!! 25 points!!!

What do we mean when we say like terms? what do we mean when we say combining like terms? how do polynomials demonstrate the closure property under addition and subtraction?

Answer:

-3r+13

Step-by-step explanation:

11r-14r-3+16

=11r-14r+13

= -3r+13

Answer:

-3r + 13

General Formulas and Concepts:

Algebra I

Step-by-step explanation:

Step 1: Define expression

11r - 14r - 3 + 16

Step 2: Simplify

And we have our final answer!

Answer:

The real solution is [tex]n=6[/tex].

Step-by-step explanation:

[tex]\cos(\frac{\pi}{2})=0[/tex] while [tex]\sin(\frac{\pi}{2})=1[/tex]

So the equation becomes:

[tex]-64=(2(0)+2i(1))^n[/tex]

[tex]-64=(0+2i)^n[/tex]

[tex]-64=(2i)^n[/tex]

We know that [tex]2^6=64[/tex]. So let's see what [tex]n=6[/tex] gives us:

[tex](2i)^6=64i^6=64i^4i^2=64(1)(-1)=-64[/tex].

[tex]-64[/tex]  is the result we wanted.

[tex]n=6[/tex] is therefore a solution.

Responder: $ 352,800

Explicación paso a paso:

Paso uno:

La pregunta destinada a decir la dimensión de la parcela rectangular es 12 m de largo y 40 m de ancho - - - no 40 m de profundidad Primero, encontremos el área de la parcela rectangular

Área = L * W Área = 12 * 14

Superficie = 168m²

Segundo paso:

En segundo lugar, se nos dice que

1m² cuesta $ 2100 Por tanto,

168m² costarán x

Multiplicación cruzada que tenemos

X = 168 * 2100 X = $ 352,800

El costo del terreno es $ 352,800

Answer:

The answer would be the first choice ; sides jh and tr are congruent

Answer:

A on EDGE

Step-by-step explanation:

Answer:

$33 for 11 packs of paper

D it’s the base.

Shdnxnxhxb

Answer:

x = 31

Step-by-step explanation:

The sum of the internal angles = 180°

then:

2x-5 + x+10 + 2x+20 = 180

5x + 25 = 180

5x = 180 - 25

5x = 155

x = 155/5

x = 31

Check:

2*31 - 5   +  31+10   +  2*31 + 20  = 180

62-5  +   41   +  62+20 = 180

57 + 41 + 82 = 180

Answer:

Step-by-step explanation:

start on the y axis and go down and put a dot on -3. then from that dot go up 2 over to the right 1.    

9514 1404 393

Answer:

  6.2 feet

Step-by-step explanation:

The mnemonic SOA CAH TOA reminds you of the relationship between angles and sides of a right triangle. Here, we have the side opposite the 58° angle, and we want to know the side adjacent. The relevant relation is ...

  Tan = Opposite/Adjacent

  tan(58°) = (10 feet)/x

  x = (10 feet)/tan(58°) ≈ 6.249 feet

The length of the shadow is about 6.2 feet.

Answer:

Step-by-step explanation:

12: 8,700

13: 42

14: 70,000

15: 5,000,000,000

16: 2,210

17: 34,100

18: 1,650

19: 149

20: 290,000

Answer:

12) 8700

13) 42

14) 70000

15) 5000000000

16) 2210

17) 34100

18) 1650

19) 149

20) 290000

[tex]46cm[/tex]

Step-by-step explanation:

[tex]5+2.5+2.5+2.5+4+(9-2.5) +(4+2.5) + 2.5 +5+9

=46[/tex]

Hope this helps

Is there supposed to be a picture or something? I don't see anything.

Answer:2$

Step-by-step explanation:12-7-3

Answer:

1) x ≅ 51.34°

2) y ≅ 38.66°

Step-by-step explanation:

In the right triangle given in the figure

∵ The triangle has a right angle

∴ Angles x and y are acute angles and the sum of their measures is 90°

→ By using the trigonometry function tan

∵ tan(x) = opposite side to x/adjacent side to x

∵ The opposite side to x = 10

∵ The adjacent side to x = 8

→ Substitute them in the rule above

∴ tan(x) = [tex]\frac{10}{8}[/tex] = [tex]\frac{5}{4}[/tex]

→ Use the inverse of tan to find x

∵ x = [tex]tan^{-1}[/tex]([tex]\frac{5}{4}[/tex])

∴ x = 51.34019175

∴ x ≅ 51.34°

∵ x + y = 90°

∴ 51.34 + y = 90

→ Subtract 51.34 from both sides

∴ y ≅ 38.66°

Answer:

4p+ 5

Step-by-step explanation:

Given that :

Point stored per quarter = p

Number of quarters = 4

Point scored in overtime = 5

total number of points the basketball player scores during all four quarters and overtime?

(Point scored per quarter * number of quarters) + point scored in overtime

(p * 4) + 5

4p + 5

Answer: The answer is D. QE. This is according to ED2020

Step-by-step explanation:

Answer:

Step-by-step explanation:

I take you mean that f(x) = 4x + 1. If it really is C leave a note below the question, and I'll come back if you post within the hour.

f(3) = 4*3 + 1

f(3) = 12 + 1

f(3) = 13

Answer: Multiply by 2 on both sides

Answer:

Multiply by 2 on both sides

Step-by-step explanation:

Hope I helped

Answer: K = -14

Step-by-step explanation: solve for k by simplifying both sides of the equation then isolating the variable

Answer:

the correct answer is -15 for the equation:

3(2x − 5) = 6x + k

Hope this helped!

Answer:

305

Step-by-step explanation:

If she is at day 19, that means you have to multiply 15 (phones repaired each day)  times 19 (19th day) in order to get how many phones she has counted which is 285. To find how much she has left, you have to subtract 285 from 590 which gets you 305.

Answer:

7.5 kilometers

Step-by-step explanation:

i took the test

Answer:

Chad has $2 in total!

Step-by-step explanation:

14 - 14 -3 +5

= 2

Answer:

 (B)

Step-by-step explanation:

LCM(15, 20) = 60

[tex]\frac{9}{15}[/tex] and [tex]\frac{14}{20}[/tex]

[tex]\frac{3}{5}[/tex] and [tex]\frac{7}{10}[/tex]

[tex]\frac{6}{10}[/tex] < [tex]\frac{7}{10}[/tex]

(B)

Answer:

f(1)=-1+6-6= - 1

f(2)=-4+12-6 = - 2

f(3)= - 9+18-6 = 3

f(4)= - 16+24-6 = 4

f(5)= - 25 +30 - 6= -1

Step-by-step explanation:

Alex literally just put what's in between the brackets (1,2....) in the place of x

or you just look at the graph

Hope this helps, have a great day