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Artyom0805 [142]
3 years ago
14

Choose the correct simplification of the following: (2x^2 + x - 1) - (x^2 + 3x – 5)

Mathematics
1 answer:
yKpoI14uk [10]3 years ago
6 0

Answer:

x^2 - 2x + 4

Step-by-step explanation:

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A line passes through the points (4, 19) and (9, 24). Write A linear function in the form Y equals MX plus be for this line.
avanturin [10]

Answer:

y = x + 15

Step-by-step explanation:

okay so you're gonna use the y2-y1/x2-x1 formula to find the slope (m)

24 - 19/9 - 4 = 5/5 = 1

so that is your slope (m)

and now if you follow your slope then you should get your y-intercept (b)

4 - 1 = 3      19 - 1 = 18

(3, 18)

3 - 1 = 2      18 - 1 = 17

(2, 17)

2 - 1 = 1       17 - 1 = 16

(1, 16)

1 - 1 = 0       16 - 1 = 15

(0, 15)

so thats your y-intercept (b)

and the equation will look like:

y = mx + b          y = x + 15  or    y = 1x + 15 (but the 1 isn't necessary)

3 0
3 years ago
John had 80 filers to post around town. Last week, he posted 1/4 of them. This week, he posted 3/5 of the remaining filers. How
Reil [10]

Answer: 24 fliers

Step-by-step explanation:

he had 80 to begin with so last week if he posted 1/4 of them he would have 3/4 left and

3/4 * 80 = 60

and then if he posts 3/5 of the 60 remaining fliers he would have 2/5 left over and

2/5 * 60 = 24

so your answer is 24 fliers

4 0
3 years ago
Read 2 more answers
I need help with these math problem ASASP! Please! The first question....
Mkey [24]
From x equals five to nine, the y value changes as follows
+10,+2,+1,+3
Assuming that "average" implies the mean, the sum of all four values is 15. Then divide 15 by the four values added = 15/4 = 3 3/4 or 3.75
4 0
3 years ago
Simplify each expression <br> 3(m+4)-5m
mash [69]

Answer:

You can start by distributing the 3 to the m+4

(3m + 12)

Now you can add on the -5m and simplify

(3m+12-5m)

-2m+12

3 0
3 years ago
Read 2 more answers
Graph the equation by first finding the​ x- and​y-intercepts.
dalvyx [7]

Answer:

x-intercept: (2,0)

y-intercept: (0,3)

Step-by-step explanation:

We are asked to graph our given equation \frac{1}{2}x+\frac{1}{3}y=1.

To find x-intercept, we will substitute y=0 in our given equation.

\frac{1}{2}x+\frac{1}{3}(0)=1

\frac{1}{2}x+0=1

2*\frac{1}{2}x=2*1

x=2

Therefore, the x-intercept is (2,0).

To find y-intercept, we will substitute x=0 in our given equation.

\frac{1}{2}(0)+\frac{1}{3}y=1

0+\frac{1}{3}y=1

3*\frac{1}{3}y=3*1

y=3

Therefore, the y-intercept is (0,3).

Upon connecting these two points, we will get our required graph as shown below.

8 0
3 years ago
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