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Olin [163]
3 years ago
11

Use addition to solve the Ix-y=6 ly=x-4

Mathematics
1 answer:
Vanyuwa [196]3 years ago
5 0

Answer:

Ix-y=6, Ly=x-4

Step-by-step explanation:

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Complete the table of values for y=2x squared + x
Lapatulllka [165]

Answer:

y=2x^2 + 2x - 3 x -2 -1 0 1 2

Step By Step Explanation:

The values can be find by plugging the x values in the equation which gives us the y value ,

x -2 -1 0 1 2

y 1 -3 -3 1 9

(b) Plot the points on the graph and join by a smooth curve.

(c) The line y=1 will be passing through 1 and parallel to x-axis.

(d) solve 2x^2 + 2x - 3 = 1

Subtract 1 from both the sides ,

2x^2 + 2x - 2 = 0

Factoring out the 2 from the equation ,

2(x^2 + x - 1) = 0

x^2 + x - 1 = 0

Apply the quadratic formula

x=(-1-sqrt(5))/2 and x = (-1+sqrt(5))/5

5 0
3 years ago
15 r minus 6 r = 36. What is the value of r?
vodomira [7]

Answer:

r=4

Step-by-step explanation:

15r-6r=36

9r=36

r=36/9

r=4

3 0
3 years ago
Read 2 more answers
1. Ella took a biology test that was 54 questions. She got 5/6 of the questions correct. How many questions did she get wrong on
melisa1 [442]
1. She got 9 questions wrong. 

2. I believe the total is $44.80 
3 0
3 years ago
20 Points:
belka [17]

Answer:

D. 105 students and 150 guests

Step-by-step explanation:

105 students and $1 for each ticket is $105.(105 x 1 = 105)

150 guests and $5 for each ticket is $750.(150 x 5 =750)

$105 + $750 = $855

6 0
2 years ago
Read 2 more answers
Yolanda needs 5 pounds of ground beef to make lasagna for a family reunion. One package of ground beef holds 2 1/2 pounds. Anoth
jonny [76]
You can find the answer by adding the two packages and subtracting them by 5. 
2 1/2+2 3/5=5 1/10
5 1/10-5=1/10

Yolonda will have 1/10 left over. 
4 0
3 years ago
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