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Fantom [35]
3 years ago
13

Explain why (5,-2) and (-2,5) do not represent the same point

Mathematics
1 answer:
Salsk061 [2.6K]3 years ago
7 0
Let A(5,-2) and B(-2, 5)

To get A we have to go 5 units horizontally (5 on the right) and - 2 units vertically, (down 2 ) whereas for  B(-2,5):

 To get B we have to go -2 units horizontally (2 on the LEFT) and 5 units vertically, (UP 5)





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A grade has 81 girls and 72 boys. the grade is split into groups that have the same ratio of girls to boys as the whole grade. h
Arturiano [62]

Answer:

<u>There are 18 girls in a group that has 16 boys.</u>

Step-by-step explanation:

1. Let's review the information given to us for solving the question:

Number of girls in the grade = 81

Number of the boys in the grade = 72

Number of students in the grade = 81 + 72 = 153

2. Let's find the number of girls in a group that has 16 boys.

For getting that number we will use the Rule of three simple, this way:

Number of girls in a group that has 16 boys = (81 * 16)/72

Number of girls in a group that has 16 boys = 1,296 / 72

<u>Number of girls in a group that has 16 boys = 18</u>

<u>There are 18 girls in a group that has 16 boys.</u>

3 0
3 years ago
Solve for r. -49 = -7r
Nikolay [14]
R=7 because you would do -49 divided by -7
5 0
2 years ago
Y-1/4=-3/8 solve for y
Leona [35]

Answer:

y=-1/8

Step-by-step explanation:

Add 1/4 to -3/8

3 0
3 years ago
How do I solve #14????
Tcecarenko [31]
All the measures in a triangle are equal to 180 degrees.

Let the unknown angle= x.

40+89+x= 180

Combine like terms.

129+x= 180

Subtract 129 from both sides.

x= 51

The angle is equal to 51.

I hope this helps!
~kaikers
5 0
3 years ago
A triangle has the coordinates of A (1,2), B (4,6), and C (4,-3). If the triangle is translated 2 units right, what are the new
yaroslaw [1]

A'(3, 2 ), B'(6, 6 ),C'(6, - 3 )

A translation of 2 units right is equivalent to adding 2 to the x- coordinate with no change to the y- coordinate.

A(1, 2 ) → A'(1 + 2, 2 ) → A'(3, 2 )

B(4, 6 ) → B'( 4 + 2, 6 ) → B'(6, 6 )

C(4, - 3 ) → B'(4 + 2, - 3 ) → B'(6, - 3 )


8 0
3 years ago
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