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4vir4ik [10]
3 years ago
10

The Pythagorean Theorem can be applied to what kind of triangles?

Mathematics
2 answers:
Vaselesa [24]3 years ago
8 0
B because one side can always need to be solved
ololo11 [35]3 years ago
7 0
Right triangles. This only works if it's a right triangle, cuz right triangles have hypotenuses.
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What is 56.57 rounded to the nearest whole number
const2013 [10]
Your answer would be 57
3 0
2 years ago
1/2x+1/4y=6. 1/5x+1/3y=1
Ierofanga [76]
\frac{1}{2}x+\frac{1}{4}y=6 \ \ \ |\times 2 \\
\frac{1}{5}x+\frac{1}{3}y=1 \ \ \ |\times (-5) \\ \\
x+\frac{1}{2}y=12 \\
\underline{-x-\frac{5}{3}y=-5} \\
\frac{1}{2}y-\frac{5}{3}y=12-5 \\
\frac{3}{6}y-\frac{10}{6}y=7 \\
-\frac{7}{6}y=7 \\
y=7 \times (-\frac{6}{7}) \\
y=-6 \\ \\
x+\frac{1}{2}y=12 \\
x+\frac{1}{2} \times (-6)=12 \\
x-3=12 \\
x=12+3 \\
x=15 \\ \\
\boxed{(x,y)=(15,-6)}
3 0
3 years ago
Read 2 more answers
If y varies directly as (x+3) and inversely as (x-3) and y=21 when x=4, what is the equation for y in terms of x?
igor_vitrenko [27]
\bf \qquad \qquad \textit{double proportional variation}
\\\\
\begin{array}{llll}
\textit{\underline{y} varies directly with \underline{x}}\\
\textit{and inversely with \underline{z}}
\end{array}\implies y=\cfrac{kx}{z}\impliedby 
\begin{array}{llll}
k=constant\ of\\
\qquad  variation
\end{array}\\\\
-------------------------------\\\\

\bf \textit{\underline{y} varies directly as (x+3) and inversely as (x-3)}\implies y=\cfrac{k(x+3)}{x-3}
\\\\\\
\textit{we also know that }
\begin{cases}
y=21\\
x=4
\end{cases}\implies 21=\cfrac{k(4+3)}{4-3}\implies 21=\cfrac{k(7)}{1}
\\\\\\
\cfrac{21}{7}=k\implies 3=k\qquad thus\qquad \qquad \boxed{y=\cfrac{3(x+3)}{x-3}}
6 0
3 years ago
(a 2n - a n - 6) (a n + 8)
yawa3891 [41]
Here
2an-an=an
then (an-6)(an+8)
=asqnsq+8an-6an+48
=asqnsq+2an+48answer



sq is square and first We should add or subtract like terms
6 0
2 years ago
Brenda already has $200 toward the purchase of a new laptop that sells for $450. She will save $50 each month, starting next mon
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$250, $300, $350, $400, $450
$0, $200, $250, $300, $350, $400, $450
<span>$50, $200, $450</span>
4 0
2 years ago
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