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vovikov84 [41]
4 years ago
11

Square root

21 } " align="absmiddle" class="latex-formula">
​
Mathematics
2 answers:
wariber [46]4 years ago
7 0

Answer:

11

Step-by-step explanation:

The number inside the square root symbol is the number you have to get when you multiply a certain number twice.

So \sqrt{121} :

What multiplied by itself is 121?

Backwards equation:

121 / 11

==> 11

Do not do the backwards method all the times, it does not work for all numbers.

Hitman42 [59]4 years ago
6 0
Answer: 11

Explanation:
11 x 11 = 121
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The diagonal of a square is 27 cm long. The diagonal of a smaller square is 12 cm long. What is the difference between the lengt
kykrilka [37]

length of big square

\sqrt{27}  = 5.2

length of small square

\sqrt{12 }  = 3.5

difference between length of two square

=5.2-3.5

=1.7

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3 years ago
A Morning Dove can reach speeds up to 158,400 feet per hour. How fast is this in miles per hour?
julia-pushkina [17]

Answer: 30 mph

Step-by-step explanation: Divide 158,400 by 5280(the amount of feet in a mile) to get your answer.

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3 years ago
If the Jonas family wanted to plant 3 bushes that needed to be 3 feet apart and 3 feet away from the fence around the yard, woul
Semenov [28]

Answer:

Not enough info.

Step-by-step explanation:

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4 years ago
P1= (5,-4); p2=(8,-3);p3=(7,-10) find the length of each side of the triangle determined by three points
Dima020 [189]

so the points are, from P1 to P2, namely P1P2, and from P2 to P3, namely P2P3, and from P3 back to P1, namely P3P1.




\bf ~~~~~~~~~~~~\textit{distance between 2 points} \\\\ P1(\stackrel{x_1}{5}~,~\stackrel{y_1}{-4})\qquad  P2(\stackrel{x_2}{8}~,~\stackrel{y_2}{-3})\qquad \qquad  d = \sqrt{( x_2- x_1)^2 + ( y_2- y_1)^2} \\\\\\ P1P2=\sqrt{[8-5]^2+[-3-(-4)]^2}\implies P1P2=\sqrt{(8-5)^2+(-3+4)^2} \\\\\\ P1P2=\sqrt{3^2+1^2}\implies \boxed{P1P2=\sqrt{10}}\\\\[-0.35em] \rule{34em}{0.25pt}


\bf ~~~~~~~~~~~~\textit{distance between 2 points} \\\\ P2(\stackrel{x_2}{8}~,~\stackrel{y_2}{-3})\qquad  P3(\stackrel{x_2}{7}~,~\stackrel{y_2}{-10}) \\\\\\ P2P3=\sqrt{[7-8]^2+[-10-(-3)]^2}\implies P2P3=\sqrt{(7-8)^2+(-10+3)^2} \\\\\\ P2P3=\sqrt{(-1)^2+(-7)^2}\implies P2P3=\sqrt{50}\implies \boxed{P2P3=5\sqrt{2}}\\\\[-0.35em] \rule{34em}{0.25pt}


\bf ~~~~~~~~~~~~\textit{distance between 2 points} \\\\ P3(\stackrel{x_2}{7}~,~\stackrel{y_2}{-10})\qquad  P1(\stackrel{x_1}{5}~,~\stackrel{y_1}{-4}) \\\\\\ P3P1=\sqrt{[5-7]^2+[-4-(-10)]^2}\implies P3P1=\sqrt{(5-7)^2+(-4+10)^2} \\\\\\ P3P1=\sqrt{(-2)^2+6^2}\implies P3P1=\sqrt{40}\implies \boxed{P3P1=2\sqrt{10}}



5 0
3 years ago
a waiter had nine tables he was waiting on, with seven women and three men at each table. how many customees total did the waite
Greeley [361]
Since each table had 7 women and 3 men at each table, that would mean each table has 10 people. Since there are 9 tables he was waiting on, and 10 people at each table, multiply 9 x 10, and you will find that he served 90 people in total.

8 0
4 years ago
Read 2 more answers
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