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3 years ago

Point A is at (-2, -7) and point M is at (2.5, -1.5).

Mathematics

1 answer:

uysha [10]3 years ago

8 0

Answer:

B = (7, 4)

Step-by-step explanation:

B = 2M -A = 2(2.5, -1.5) -(-2, -7)

B = (5+2, -3+7)

B = (7, 4)

<em>Derivation</em>

You know the midpoint is calculated from ...

M = (A+B)/2

Solving for B, we get ...

2M = A+B

B = 2M-A . . . . the formula we used above

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Find the minimum, maximum, range, mean, and median for the data set.

Papessa [141]

Minimum: 37
maximum: 208
range: maximum - minimum = 208 - 37 = 171
mean: (37 + 43 + 54 + 83 + 102 + 117 + 160 + 208)/8 = 100.5
median: middle number (83 + 102)/2 = 92.5

3 0

3 years ago

Read 2 more answers

Mimi and Rita both plan to run for a spot on the school

hammer [34]

Answer:

The equal number of signatures Mimi and Rita eventually collects are 70 signatures

Step-by-step explanation:

1) The initial number of signatures Mimi has = 30 Signatures

The average rate at which Mimi can collect signatures = 8 signatures per hour

The average rate at which Rita can collect signatures = 14 signatures per hour

The table of values showing the number of signatures Mimi and Rita can have at a given hour is presented as follows;

For Mimi, we have;

Hour ${}$ Number of Signatures

0 ${}$ 30

1 ${}$ 38

2 ${}$ 46

3 ${}$ 54

4 ${}$ 62

5 ${}$ 70

For Rita, we have;

Hour ${}$ Number of Signatures

0 ${}$ 0

1 ${}$ 14

2 ${}$ 28

3 ${}$ 42

4 ${}$ 56

5 ${}$ 70

2) The equation representing the number of signatures Mimi has at a given time, t, is given as follows;

The number of signatures Mimi has = 30 + 8 × t

The equation representing the number of signatures Rita has at a given time, t, is given as follows;

The number of signatures Rita has = 14 × t

3) Please find attached the required graph of the number of signatures Mimi and Rita has

4) The solution if the system of equations is given as follows;

30 + 8 × t = 14 × t

From which we have;

30 = 14 × t - 8 × t = 6 × t

t = 30/6 = 5 Hours

By substituting t = 5 hours in the above equations, the equal number of signature of signatures Mimi and Rita can have is therefore;

30 + 8 × 5 = 70 signatures = (14 × 5) signatures

The equal number of signatures Mimi and Rita eventually collects are 70 signatures

5) The meaning of the solution is that is Mimi and Rita continue collecting signatures at their respective constant rate of 8 and 14 signatures per hour, given that Mimi already has 30 signatures, they will have the same number of 70 signatures after 5 hours