Answer:
8.2
Step-by-step explanation:
The distance formula is
In this case, x_1 = 2, y_1 = 7, x_1 = 4, y_1 = -1.
We can plug in these values, getting
b. 80 minutes
c. 200 minutes
d. 240 minutes HELP?!
Answer:
If they work together, they take 48 minutes to line the football field.
Step-by-step explanation:
Given: Reggie can line a football field in 120 minutes. Rosalinda can line a football field in 80 minutes.
To find : If they work together, how many minutes does it take them to line a football field?
Solution :
If they work together,
Let the number of minutes(x) they take to line the foot ball field.
According to question,
Cross multiply,
Therefore, If they work together, they take 48 minutes to line the football field.
Answer: If they work together, they can line a football field in 48 minutes.
Step-by-step explanation: Given that Reggie can line a football field in 120 minutes and Rosalinda can line a football field in 80 minutes.
We are to find the number of minutes does it take them to line a football field if they work together.
We have
Time taken by Reggie to line a football field = 120 minutes.
So, in 1 minute, Reggie can line part of the field.
Time taken by Rosalinda to line a football field = 80 minutes.
So, in 1 minute, Rosalinda can line part of the field.
Therefore, if they work together, the portion of the football field that they can lie in 1 minute is given by
Thus, if they work together, they can line a football field in 48 minutes.
I will be really thankful for help
Answer:
1. Terminating
2. 60
3. I don't know
Step-by-step explanation:
What is the interquartile range of the data?
Answer: 4
Step-by-step explanation:
First arrange the given data in ascending order :-
Number of terms = 9
Second quartile =Median=
Now, the first quartile=The median for the lower half of data
= Mean of 2nd term and 3rd term
The third quartile =The median for the upper half of data
= Mean of 7th term and 8th term
Now, Interquartile range =
Hence, the interquartile range of the data =4.
Answer:
(C) 4
Step-by-step explanation:
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Answer:
The required quadratic function is .
Step-by-step explanation:
The standard form of the parabola is
Where the focus is (h, k + p) and the directrix is y = k - p.
The directrix of y = 2 and a focus of (3, −4).
On comparing both sides we get
...... (1)
...... (2)
Add equation (1) and (2).
Substitute k=-1 in equation (1).
Therefore the equation of parabola is
It can be rewritten as
Therefore the required quadratic function is .
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