Somebody please help!

Answer:

1. To add or subtract rational expressions with unlike denominators, first find the LCM of the denominator. ...

2. Write each expression using the LCD. ...

3. Add or subtract the numerators.

4. Simplify as needed.

Answer:

Step-by-step explanation:

Distance

23.43074902772

Midpoint

(25,22.5)

Slope

−0.833333333333333

x intercept

52.00

y intercept

43.33

Answer:

multiply both sides by 8

Step-by-step explanation:

I don't really know why I just know lol hope this helps

Use cross-multiplication

[tex]\frac{b - 4}{6} = \frac{b}{2}\\2(b- 4) = 6b\\2b - 8 = 6b\\2b - 6b = 8\\-4b = 8\\b = -2[/tex]

Answer:

3

Step-by-step explanation:

|2x + 5| = 11

2x + 5 = 11

2x = 11 - 5

2x = 6

x = 3

Answer

Step-by-step explanatio

clause A

Answer:

[tex]2z^4[/tex]

Step-by-step explanation:

Given the expression [tex]\frac{z^{-1}}{3} \div\frac{z^{-5}}{6}[/tex], we are to write it in the form of [tex]nz^n[/tex]. To do that we will simplify the given indicinal expression as shown;

[tex]\dfrac{z^{-1}}{3} \div\dfrac{z^{-5}}{6}\\= \dfrac{z^{-1}}{3} \times\dfrac{6}{z^{-5}}\\= \dfrac{6z^{-1}}{3z^{-5}}\\ = \dfrac{2z^{-1}}{z^{-5}}\\[/tex]

According to indices [tex]\dfrac{a^m}{a^n} = a^{m-n}[/tex], the resulting equation will become;

[tex]= \dfrac{2z^{-1}}{z^{-5}}\\= 2z^{-1-(-5)}\\= 2z^{-1+5}\\= 2z^{4}[/tex]

Hence expression in the form [tex]nz^n \ is \ 2z^4[/tex].

Answer:

9z

Step-by-step explanation:

Khan Academy

Answer:

(0,-2) (1,1) (2,4)

Step-by-step explanation:

Answer:

C. 11 3/4

Step-by-step explanation:

3 + 3 + 2 + 2 = 10

1/4 + 3/4 + 1/4 = 1 1/4

1/2 -> 2/4

2/4 + 1 1/4 = 1 3/4

10 + 1 3/4 = 11 3/4

Answer:

3^-5 = 1/3^5

Step-by-step explanation:

3^4 ⋅ 3−^9

When multiplying exponents and the bases are the same, we can add the exponents

a^b * a^c = a^ ( b+c)

3^4 ⋅ 3−^9

3^( 4-9)

3^-5

We know that a^ -b = 1/a^b

3^-5 = 1/3^5

Answer:                                                                                                                                

3^4 times 3^9 = 3^4 times 1/3^9

Step-by-step explanation:

I dont know if this is right there were no answer choices.

Answer:

0,-9,-8,3

Step-by-step explanation:

Domain

0

-9

-8

3

Answer:

number of adults tickets sold = x = 90

number of teachers tickets = y = 45

number of students tickets = z = 145

Step-by-step explanation:

Cost of tickets

Adults = $6

Teachers = $4

Students = $2

Total tickets sold = 280

Total revenue = $1010

Let

x = number of adults tickets

y = number of teachers tickets

z = number of students tickets

x + y + z = 280

6x + 4y + 2z = 1010

If the number of adult tickets sold was twice the number of teacher tickets

x = 2y

Substitute x=2y into the equations

x + y + z = 280

6x + 4y + 2z = 1010

2y + y + z = 280

6(2y) + 4y + 2z = 1010

3y + z = 280

12y + 4y + 2z = 1010

3y + z = 280 (1)

16y + 2z = 1010 (2)

Multiply (1) by 2

6y + 2z = 560 (3)

16y + 2z = 1010

Subtract (3) from (2)

16y - 6y = 1010 - 560

10y = 450

Divide both sides by 10

y = 450/10

= 45

y = 45

Substitute y=45 into (1)

3y + z = 280

3(45) + z = 280

135 + z = 280

z = 280 - 135

= 145

z = 145

Substitute the values of y and z into

x + y + z = 280

x + 45 + 145 = 280

x + 190 = 280

x = 280 - 190

= 90

x = 90

Therefore,

number of adults tickets sold = x = 90

number of teachers tickets = y = 45

number of students tickets = z = 145

Answer:

4x2 - 9x - 8

Step-by-step explanation:

Answer:

coefficients: 1, 4

like terms 13, -5 and 1x, 4x

constant: 13, 5

Answer:

C.  24.27 cm

Step-by-step explanation:

sin 65° = opposite ÷ hypotenuse

sin 65° = 22/x

multiply both sides of the equation by x

(sin 65°)x = 22

divide both sides of the equation by sin 65°

x = 22 ÷ sin 65°

punch in 65 sin into your calculator

x = 22 ÷ 0.90631

x = 24.27 cm

Answer:

1 painting /8 weeks

Step-by-step explanation:

Answer:

1 full painting every 8 weeks

Step-by-step explanation:

she completed 1/4 every 2 week which is 0.25

if 0.25x4 =1  

so if you multiply 2x4 weeks= 8

Complete question:

Benjamin decides to treat himself to breakfast at his favorite restaurant. He orders chocolate milk that costs \$3.25$3.25dollar sign, 3, point, 25. Then, he wants to buy as many pancakes as he can, but he wants his bill to be at most \$30$30dollar sign, 30 before tax. The restaurant only sells pancakes in stacks of 444 pancakes for \$5.50$5.50dollar sign, 5, point, 50. Let SSS represent the number of stacks of pancakes that Benjamin buys. 1) Which inequality describes this scenario?

Answer:

Kindly check explanation

Step-by-step explanation:

Given that :

Cost of chocolate milk = $3.25

Cost of pancakes = $5.50 (stack of 4)

Number of stacks of pancakes purchased = S

Maximum amount spent ≤ $30

Cost of chocolate + (Cost of pancake stack * number of stacks) ≤ $30

3.25 + 5.50S ≤ 30

5.50S ≤ 30 - 3.25

5.50S ≤ 26.75

S ≤ 26.75 / 5.50

S ≤ 4.86

Hence maximum number of pancake stacks he can purchase without exceeding budget = 4

Hence total number of pancakes = number of stacks * number in a stack

= 4 * 4

= 16

Answer:

Chose option have answer 3.25+5.50S [tex]\leq[/tex] 30

16 pancakes

Step-by-step explanation: If you find answer from Khan please use this answer

Answer:6 im not to sure

Step-by-step explanation:

Anyways, the question isn't clear. Can you get a better screenshot?

Answer:

Domain, -1<x<=6

Range, -3<=y<=5

Step-by-step explanation:

Just trust me

7x -1 + 9x + 5 = 180

16x = 180 - 5 + 1

16x = 176

x = 176/16

x = 11

Step-by-step explanation:

(7x-1)+(9x+5)=180 ( since its a straight line )

16x+4=180

x= 11

Answer:

No; x=1.6

Step-by-step explanation:

Answer:

Step-by-step explanation:

(3 , 6 )      ;( 9 , 2)

Distance = [tex]\sqrt{(x_{2}-x_{1})^{2}+(y_{2}-y_{1})^{2}}[/tex]

               [tex]= \sqrt{(9-3)^{2}+(2-6)^{2}}\\\\=\sqrt{6^{2}+(-4)^{2}}\\\\=\sqrt{36+16}\\\\=\sqrt{52}\\\\=\sqrt{2*2*13}\\\\=2\sqrt{13}[/tex]

Answer:

-13, -12, -11, -10, -9, -8, -7, -6, -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

Answer:

6 pieces

Step-by-step explanation: