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Andrej [43]
3 years ago
7

Use an area model to multiply (3x+7)(4x+5).

Mathematics
1 answer:
DochEvi [55]3 years ago
5 0

Answer: 12x^2 + 43x + 35 (if you go to k12)

Step-by-step explanation: took the quiz :) (also, sorry forgot to actually answer..)

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Find the slope and y-intercept of -x + 2y = 3. I need help on working this problem out​
natita [175]

Answer:

So the slope of this function is \frac{1}{2} and the y-intercept is \frac{3}{2}

Step-by-step explanation:

A first order function has the following format:

y = ax + b

In which a is the slope and b is the y-intercept, that is, the value of y when x = 0.

We have the following equation:

-x + 2y = 3

We just have to rewrite this equation

2y = x + 3

y = \frac{x+3}{2}

y = \frac{x}{2} + \frac{3}{2}

Which means that

a = \frac{1}{2}, b = \frac{3}{2}

So the slope of this function is \frac{1}{2} and the y-intercept is \frac{3}{2}

6 0
3 years ago
Dan must do homework for 1/2 of an hour and clean his room for 1/3 of an hour before he can play. What faction of an hour must D
zloy xaker [14]

Answer:

50 minutes

Step-by-step explanation:

1/2 hour = 30 minutes

1/3 hour = 20 minutes

30 + 20 = 50 minutes

4 0
3 years ago
Is there no solution, one solution or many solutions for 21+2.5w=6+5.7w-3.2w+15?
MatroZZZ [7]
There are many solutions. infinite solutions at that. when you solve it it equals itself 2.5w+21= 2.5w+21 so that means all numbers would work as a solution.
6 0
3 years ago
A total of 231 tickets were sold for the school play. They were either adult tickets or student tickets. The number of student t
Bumek [7]
Well if there are 231 tickets, then divide 231 by three, that will equal 77, so if you see what i am doing,i am diving all tickets by 3 so that the students get 2/3 and the adults get the pther 1/3. so the answer is 77. 
5 0
3 years ago
The difference in the x-coordinates of two points is 3, and the difference in the y-coordinates of the two points is 6. Wha
Yanka [14]

Answer:

2

to find the slope you get the rise which is the difference between the y coordinates over the run which is the difference between the x coordinates. so 6/3=2

3 0
3 years ago
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