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maria [59]
3 years ago
15

A diver is swimming at -10m. he then descends 3 m and rises 6 m. at what new level is the diver swimming?

Mathematics
2 answers:
yaroslaw [1]3 years ago
7 0
-10-3+6= -7

hope this helped!!
tankabanditka [31]3 years ago
7 0

Hey there!

The correct answer would be~

The diver is now swimming at <u> -7 meters.</u>

Here's how:

If the diver is already swimming at negative 10, going deeper would <em>add </em>to that.

(-10) + (-3) = -13

So at this point, he is at -13 meters. However, it says he rises <em>6 meters. </em>

So if he rises, we need to subtract.

13 - 6 = 7

Therefore he is now at <em>-7 meters.</em>

Hope this helps!

~Fluerie

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Which best explains what determines whether a number is irrational?​
AleksandrR [38]
You can determine if a number is rational if it can be represented as a terminating or repeated decimal, but if it can not, then the number is irrational.
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4 years ago
A random sample of 121 students from the University of Oklahoma had a sample mean ACT score of 23.4 with a sample standard devia
Grace [21]

Answer:

(22.74,24.06) is the required 95% confidence interval for the population mean ACT score of University of Oklahoma students.

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 121

Sample mean = 23.4

Sample standard deviation = 3.65

Level of significance = 0.05

Degree of freedom

= n - 1 = 120

95% Confidence interval:  

\bar{x} \pm t_{critical}\displaystyle\frac{s}{\sqrt{n}}  

Calculation of critical value:

t_{critical}\text{ at degree of freedom 120 and}~\alpha_{0.05} = \pm 1.9799  

Putting the values, we get,  

23.4\pm 1.9799(\dfrac{3.65}{\sqrt{121}} )\\\\ = 23.4 \pm 0.6569\\\\ = (22.7431 ,24.0569)\approx (22.74,24.06)  

(22.74,24.06) is the required 95% confidence interval for the population mean ACT score of University of Oklahoma students.

5 0
3 years ago
Find the equation of a line with the given points. (Put your answers in the form y = mx + b.) (7, 3) (3, 7)
igor_vitrenko [27]
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.. x + y = 10
Then
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8 0
3 years ago
(10-3)*2+(5-14/2 help
Dafna11 [192]
2(10-3) distribute = 2*10 is 20 and 2*3 is 6
20-6+(5-14/2)
now 20-6 is 14
14+(5-14/2)
now 14/2 is 7
14+(5-7)
now 5-7 is -2
14+-2
is 12 
the answer is 12
but if you want to you can do 12/3 to get the greatest common factor 
which is 4
hope i help you :P 
6 0
3 years ago
Read 2 more answers
Determine the standard form of the equation of the line that passes through (6, – 9) and (-8, 6).
muminat

Answer:

15x + 14y = -18

Step-by-step explanation:

slope = (6 - -9)/(-8 - 6) = 15/-14

y = mx + b

6 = -15/14(-8) + b

6 = 60/7 + b

b = -18/7

y = -15/14x - 18/7

15/14x + y = -18/7, multiply everything by 14

15x + 14y = -18

4 0
3 years ago
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