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Katyanochek1 [597]
3 years ago
11

Please show your work

Mathematics
1 answer:
Andrei [34K]3 years ago
5 0

Answer:

a = 9

Step-by-step explanation:

a^2 = 41^2 - 40^2

a^2 = 1681-1600 = 81

a = 9

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At the beginning of the day the stock market goes up 30 1/2 points. At the end of the day, the stock market goes down 100 3/4 po
Akimi4 [234]
Well, is namely their difference, so, let's first convert the mixed fractions to "improper", and subtract.

\bf \stackrel{mixed}{30\frac{1}{2}}\implies \cfrac{30\cdot 2+1}{2}\implies \stackrel{improper}{\cfrac{61}{2}}
\\\\\\
\stackrel{mixed}{100\frac{3}{4}}\implies \cfrac{100\cdot 4+3}{4}\implies \stackrel{improper}{\cfrac{403}{4}}\\\\
-------------------------------\\\\
\cfrac{61}{2}-\cfrac{403}{4}\impliedby \textit{so our \underline{LCD is 4}}\implies \cfrac{(2\cdot 61)~-~(1\cdot 403)}{4}
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\cfrac{122-403}{4}\implies \cfrac{-281}{4}\implies -70\frac{1}{4}
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2 years ago
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olga55 [171]

Answer:

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4 0
3 years ago
Read 2 more answers
Solve.<br> x<br> __<br> 2 = 7<br> ----------------------------------------<br> PLEASE HELP!
galina1969 [7]
\frac{x}{2} = 7\\\\\frac{x}{2} \times 2 = 7\times2\\\\\boxed{x=14}
5 0
3 years ago
1. What must be true about a circle with a circumference of 16 π?
snow_tiger [21]
1. - B) <span>the diameter is 16

2. - C.) </span><span>diameter is 8

3. - D.) </span><span>a circle's circumference divided by its diameter.

4. - C.) </span><span>the radius.

5. - A.) 9.42

6. - D.) </span><span>16 inches or less.

7. - A.) </span><span>π

8. - B.) </span><span>2 (3.14) π

9. - A.) 8

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7 0
2 years ago
The volume of a fish tank is 60 cubic feet. If the density is 0.3 fish over feet cubed, how many fish are in the tank? 200 9 100
FinnZ [79.3K]

Answer:

There are 18 fish in the fish tank.

Step-by-step explanation:

The volume of a fish tank is 60 cubic feet: V = 60 ft³.

The density is 0.3 fish over feet cubed. d = 0.3 fish/ft³

We can find the number of fish using proportions. The required conversion factor is 0.3 fish/ft³. The number of fish is:

60 ft³ × (0.3 fish/ft³) = 18 fish

There are 18 fish in the fish tank.

5 0
2 years ago
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