3 years ago

What is the length of leg s of the triangle below?

Mathematics

1 answer:

Vladimir79 [104]3 years ago

3 0

Answer:

the answer is F.8

Step-by-step explanation:

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if you work and 8 hour shift on each weekend day and take two weeks off during the year, how many hours will you work in a year?

otez555 [7]

$365:7=52 \frac{1}{7} \rightarrow\ the\ number\ of\ weeks\ in\ year\\\\52 \frac{1}{7}-2=50 \frac{1}{7}\\\\50 \cdot5+1=251\ \ \ \rightarrow\ \ \ number\ of \ workday\\\\251\cdot8=2008\ (hour/year)\ \leftarrow\ Ans.$

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4 years ago

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The line with equation ax+by=20 passes through the points(-2,10) and (1,5)<br>find a and b

Doss [256]

$ax+by=20 \\ \\(-2,10) \\ \\ a*(-2)+b*10 = 20 \\ \\-2a +10b = 20 \\ \\ (1,5)\\ \\ a*1+b*5 = 20 \\ \\ a +5b = 20$

$\begin{cases} -2a+10b =20\\ a+5b =20 \ /*2\end{cases} \\ \\\begin{cases} -2a+10b =20\\ 2a+10b =40 \end{cases}\\--------\\ 20b=60 \ / :20 \\ \\b=\frac{60}{20} =3$

$-2a+10b=20 \\ \\-2a +10*3=20 \\ \\-2a +30=20\\ \\-2a=20-30\\ \\-2a=-10 \ /: (-2)$

$a=\frac{10}{2}=5\\ \\\begin{cases} a= 5 \\b=3\end{cases}$

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4 years ago

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From the end of the class today, you have 1 day, 11 hours, and 59 minutes until the test is due. How many minutes do you have to

Triss [41]

Answer:

2159

Step-by-step explanation:

1440 minutes in a day.

60 minutes in an hour

60 x 11 = 660.

1440 + 660 = 2100.