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Law Incorporation [45]
3 years ago
13

I need help plz it is for khan academy

Mathematics
1 answer:
Schach [20]3 years ago
7 0

Answer:

slope = 1

Step-by-step explanation:

Calculate the slope m using the slope formula

m = \frac{y_{2}-y_{1}  }{x_{2}-x_{1}  }

with (x₁, y₁ ) = (- 1, 0) and (x₂, y₂ ) = (0, 1)

m = \frac{1-0}{0+1} = 1

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6/12 + 1/3 Simplify completely, show all work.
marissa [1.9K]
If you multiply the numerator and the denominator of 1/3 by 4, you will get a common denominator. 

1/3 = 4/12

Then you can add:

6/12 +4/12 = 10/12

Just add the top 2 numbers and the bottom 2 stay the same. Then you can simplify. 2 goes into both 10 and 12, so divide them both by 2 and you get 5/6 as your answer.
6 0
4 years ago
Please help me solve this and please also show work so I can understand it BETTER PLEASEEE ITS DUE
ratelena [41]

Answer:

6. 8b²-5b-4

7. -3x²+9x-4

8. 3

9. 6a+15

Step-by-step explanation:

you will subtract/add the numbers with the same variables and exponent.

ex. (number 6) 7b²+ b²= 8b²

5b= 5b 8b²+5b-4

1-5= -4

(plus 5b because it didnt come out to a negative) if you have any questions, say in the comments and ill try my best to help

8 0
3 years ago
Expand and simplify (3x-1)(2x+5)
Mrac [35]

(3x-1)*(2x+5)=

(6x²+15x-2x*5)=

6x²+13x-5

6 0
4 years ago
Josiah works at an electronics store as a salesperson. Josiah earns a 2% commission on the total dollar amount of all phone sale
salantis [7]

Answer: the equations are

0.02x + 0.07y = 156

y = 300 + x

Step-by-step explanation:

Let x represent the total dollar amount of phone sales that she makes.

Let y represent the the total dollar amount of computer sales that she makes.

Josiah earns a 2% commission on the total dollar amount of all phone sales he makes, and earns a 7% commission on all computer sales. She earned a total of $156 in commission. This means that

0.02x + 0.07y = 156 - - - - - - - - - - -1

Josiah had $300 more in computer sales than in phone sales. This means that

y = 300 + x

4 0
3 years ago
Read 2 more answers
Which function has zeros at x= 10 and x= 2?
kari74 [83]
<span>f(x) = x^2 – 12x + 20</span>
6 0
3 years ago
Read 2 more answers
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