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Illusion [34]
3 years ago
5

Corinna's cell phone bill was $52.75 in July.

Mathematics
1 answer:
rodikova [14]3 years ago
7 0

Answer:

The answer is 21.10

Explanation:

If her bill in July was $52.75 and her bill in August was only 60% of July

60% of 52.75 is 31.65

and they asked how much more she paid:

52.75-31.65 = 21.10

hope this helps!

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How do you find the arctan 4/3 ? (Without a calculator)
Soloha48 [4]
If arctan 4/3 = the tangent of that angle will be 4/3 , opposite 4 over adjacent 3

Now, you only have to take the sin of that angle it's opposite 4 over hypotenuse 5. 

You will get that the answer is 4/5

hope this helps



7 0
3 years ago
During the day the temperature was -3 Fahrenheit at night the temperature dropped 19 Fahrenheit what was the temperature at nigh
Sholpan [36]

Answer:

-22 degrees Fahrenheit

Step-by-step explanation:

-3 - 19 = -22

5 0
3 years ago
A graduate-level computer science course only gives the grades of A, B, or C. The department has determined that there should be
kupik [55]

Step-by-step explanation:

The null hypothesis: The department has determined that there should be 40% A’s given, 40% B’s given and 20% C’s given as final grades for the course

If  the p-value for this hypothesis test is = 0.000... and this number is lower than the 0.05 significance level, we reject the null hypothesis and conclude that from the result of our observation that final grades do not match this grading guidelines.

It means the grading guidelines was exceeded in terms of As, was  less in terms of Bs and was higher in terms of Cs i e the grading guidelines was not consistent with what was stated in the null.

6 0
2 years ago
237 devided by 8 times 564
Goshia [24]
237÷8×564 = 16708.5..
6 0
3 years ago
10 x y = 122<br> I need to show my work
patriot [66]


You need to divide 122 by 10, then you multiply your answer by 10 and see if you get 122. So 122 divided by 10 = 12.2, then 10 x 12.2= 122.


7 0
3 years ago
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