54:15
What is the perimeter of rhombus ABCD?
10 units
20 units
277 units
C(-5,1)
A(1.1) +
477 units
-5
-3 -2 -1
1
2
3
4
5
B(-2,-3)
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Arley is building a model of a city map. in one part of the city, three roads form a right triangle, which harley draws as triangle abc, with the following measures: m∠b=90° and m∠a=30°. in his scale model, the hypotenuse of triangle abc, ac¯¯¯¯¯¯¯¯, has a length of 817−−√ cm. what is the value of a (the length of bc¯¯¯¯¯¯¯¯)?

What is the frequency of the sinusoidal graph?

Is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis.