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Wittaler [7]
3 years ago
10

What does 7/8 + -5/6 euqal​

Mathematics
2 answers:
kolbaska11 [484]3 years ago
5 0

Answer:

7/8 + -5/6

24 is multiple for 6 and 8

7*3/8*3 + -5*4/6*4

=21/24 + -20/24

=1/24

Step-by-step explanation:

Virty [35]3 years ago
3 0

Answer:

1/24

Step-by-step explanation:

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Five students visiting the student health center for a free dental examination during National Dental Hygiene Month were asked h
Andrews [41]

Answer:

[0.9 months, 32.69 months]

Step-by-step explanation:

The mean is

\bf \bar x=\frac{5+17+12+21+29}{5}=16.8

The standard deviation is

\bf s=\sqrt{\frac{(5-16.8)^2+(17-16.8)^2+(12-16.8)^2+(21-16.8)^2+(29-16.8)^2}{5}}=8.1092

Now, we have to find two values a and b such that the area under the Normal curve with mean 16.8 and standard deviation 8.1092 between a and b equals <em>95% = 0.95 </em>

Using a spreadsheet we find these values are

a = 0.906

b = 32.694

<h3>(See picture) </h3>

and our 95% confidence interval for the mean number of months elapsed since the last visit to a dentist for the population of students participating in the program rounded to two decimal places is

[0.9 months, 32.69 months]

4 0
3 years ago
If one stamp cost $.45 what does a roll of 125 stamps cost in cents? What is the amount in dollars and cents
Rufina [12.5K]
The cost of the roll = 125 * 45 = 5625 cents

5625 / 100 = 56.25 $
5 0
3 years ago
Read 2 more answers
the ratio of the number of adults to the number of children in a library is 12:5 if there are 45 children in the library how my
anygoal [31]
I’m guessing 108. 45 divided by 5 is 9, so 9 times 12 is 108.
5 0
3 years ago
Read 2 more answers
Which is the value of the expression (StartFraction (10 Superscript 4 Baseline) (5 squared) Over (10 cubed) (5 cubed)) cubed?
Flura [38]

Answer:

The value to the given expression is 8

Therefore \left[\frac{(10^4)(5^2)}{(10^3)(5^3)}\right]^3=8

Step-by-step explanation:

Given expression is (StartFraction (10 Superscript 4 Baseline) (5 squared) Over (10 cubed) (5 cubed)) cubed

Given expression can be written as below

\left[\frac{(10^4)(5^2)}{(10^3)(5^3)}\right]^3

To find the value of the given expression:

\left[\frac{(10^4)(5^2)}{(10^3)(5^3)}\right]^3=\frac{((10^4)(5^2))^3}{((10^3)(5^3))^3}

( By using the property ((\frac{a}{b})^m=\frac{a^m}{b^m} )

=\frac{(10^4)^3(5^2)^3}{(10^3)^3(5^3)^3}

( By using the property (ab)^m=a^mb^m )

=\frac{(10^{12})(5^6)}{(10^9)(5^9)}

( By using the property (a^m)^n=a^{mn} )

=(10^{12})(5^6)(10^{-9})(5^{-9})

( By using the property \frac{1}{a^m}=a^{-m} )

=(10^{12-9})(5^{6-9}) (By using the property a^m.b^n=a^{m+n} )

=(10^3)(5^{-3})

=\frac{10^3}{5^3} ( By using the property a^{-m}=\frac{1}{a^m} )

=\frac{1000}{125}

=8

Therefore \left[\frac{(10^4)(5^2)}{(10^3)(5^3)}\right]^3=8

Therefore the value to the given expression is 8

3 0
3 years ago
Read 2 more answers
The computer rendering of a mural in a town's square uses
rjkz [21]

Answer:

B

The highest point of the mountain defined by the function is 16 feet.

ED 2020

Step-by-step explanation:

7 0
4 years ago
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