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maks197457 [2]
3 years ago
14

Systems By Graphing - Solve All Correctly For a Thanks, 5-Stars, And A Brianliest!

Mathematics
1 answer:
BartSMP [9]3 years ago
4 0

Answer:

Step-by-step explanation:

Amari= Graph C and Solution is (-6,-2)

Bella= Graph A and Solution is (3,4)

Carl= Graph B and Solution is (0,-3)

0 solutions because the slopes are the same. The lines will never cross because they are at the exact same angle.

No, I do not agree with Joey because the lines have different slopes and will lead to the system cross which is the solution.

1st graph: y=2x-1 and y=7 solution #1= (4,7)

2nd graph: y=-2x-3 and y=1/2x solution #2= (-2,1)

3rd graph: y=x and y= -1/5+6 solution #3= (5,5)

I had this exact same assignment a few months ago, my teacher didn't use the 2nd slide but I had the 1st and 3rd slide so this should help!

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*ANSWER PLS, DIFFICULT QUESTION* Wrapping paper costs $0.025 per square inch. If a moving box that is an 8 ½ inch cube is being
stira [4]

Answer: D $10.84

Step-by-step explanation:

If the box is a cube and paper is needed to wrap it, then we need to find the surface area of the box then multiply it buy the cost of the wrapping paper.

The surface area of a cube uses the formula 6a^2  where a is any side length.

We know that the box has a side length of 8.5 inches.

SA = 6*8.5^2

SA= 433.5  

Now multiply the surface area by the money.

433.5 * 0.025 = 10.8375  

Round 10.8375 to dollars and cents as it is required.

10.8375 = 10.84

Which means it will cost $10.84 to wrap the box.

5 0
3 years ago
Which sets of numbers are closed under addition?
Ostrovityanka [42]
All close under addition therefore all are right
4 0
3 years ago
What is the quotient of 7 to the power of negative 4 and 7 to the power if negative 9​
stepladder [879]

Answer:

Step-by-step explanation:

7^-4/7^-9

7^9/7^4 = 7^(9-4)

7^5 is the solution

3 0
3 years ago
Given:
stira [4]
Angle CFE is an alternate interior angle with angle FCD
5 0
3 years ago
A regular decagon has 10 sides. How many reflectional symmetries does a regular decagon have?
lina2011 [118]

The rule for regular polygons are very easy. The number of reflectional symmetries is same as the number of sides. Regular polygons have all sides the same length and all angles same. Reflection symmetry means that you can fold the shape along that line and it will match up.

For this question, we want the number of reflectional symmetries of a regular decagon. Decagon is a 10 sided figure. Hence, the number of reflectional symmetries is 10.

There are 5 symmetry lines from one vertex to opposite vertex and 5 more symmetry lines form midpoint of one side to midpoint of opposite side.

ANSWER: 10

7 0
3 years ago
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