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Phantasy [73]
2 years ago
7

I need help with question 2​

Mathematics
1 answer:
vitfil [10]2 years ago
6 0

Answer:

t=2.5d

Step-by-step explanation:

For every 5 minutes, the distance in laps is always 2.5x less
That is why I made the equation
t=2.5d
For every minute it will be distance x 2.5 to make it equal.

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I learned it before but now I forgot it. Please help!
JulijaS [17]
X should be 3,

because 8x means 8 times what number.

So 8x must be 3.

8 times 3 = 24. 24 +5 = 29.

Hope you Understand :) !
6 0
3 years ago
Read 2 more answers
Express the confidence interval (0.036, 0.086) in the form of p-e< p
lina2011 [118]

Answer:

p-e< p < p+e

(0.061 - 0.025) < 0.061 < (0.061 + 0.025)

0.036 < 0.061 < 0.086

Step-by-step explanation:

Given;

Confidence interval CI = (a,b) = (0.036, 0.086)

Lower bound a = 0.036

Upper bound b = 0.086

To express in the form;

p-e< p < p+e

Where;

p = mean Proportion

and

e = margin of error

The mean p =( lower bound + higher bound)/2

p = (a+b)/2

Substituting the values;

p = (0.036+0.086)/2

Mean Proportion p = 0.061

The margin of error e = (b-a)/2

Substituting the given values;

e = (0.086-0.036)/2

e = 0.025

Re-writing in the stated form, with p = 0.061 and e = 0.025

p-e< p < p+e

(0.061 - 0.025) < 0.061 < (0.061 + 0.025)

0.036 < 0.061 < 0.086

6 0
3 years ago
The midpoint of overline AB is M(4, -5). If the coordinates of A are (6, -4)what are the coordinates of B?
jolli1 [7]

Img attached

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7 0
1 year ago
How to simplify this 5x^2 -3 (x + 2) - 2x​
lukranit [14]
Answer: 5x^2 - 5x - 6

work:
5x^2 -3(x+2) - 2x
distribute
5x^2 -3x - 6 - 2x
combine like terms
5x^2 -5x - 6
4 0
3 years ago
Marcus is planning a budget. He plans to spend less than 25% of his allowance each week on entertainment. Last week Marcus spent
g100num [7]
Marcus went above his budget as 25% percent of his allowance would be $5, and he went $2.42 over.

4 0
3 years ago
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