All Answers 356020 Answers

Remember:

S-O-H-C-A-H-T-O-A

Sin = Opposite/Hypotenuse

Cos=Adjacent/hypotenuse

Tan=Opposite/Adjacent

Area calculations difer for each type of figure

Circle  = pi x r^2

triangle = 1/2 b x h

square or rectangle = l x w

etc....

Of what type of figure are you interested in finding the area????

2/3 x^2 = 6   Multiply both sides by 3/2

x^2 = 9

x = +3  or -3

Triangle ABC has a right angle at angle B. Legs AB and CB are extended past point B to points D and E, respectively, such that angle EAC = angle ACD = 90 degrees. Prove that EB * BD = AB * BC.

Below is the diagram representing the described triangle.

Geometric mean theorem:

\(\begin{array}{|lrcll|} \hline (1) & AB^2 &=& EB \cdot BC \\ (2) & BC^2 &=& AB\cdot BD \\ \hline (1) \cdot (2): & AB^2\cdot BC^2 &=& EB \cdot BC\cdot AB\cdot BD \quad & | \quad : (AB\cdot BC) \\ & AB\cdot BC &=& EB\cdot BD \\ \hline \end{array}\)

Help.

Geometric mean theorem:

\(\begin{array}{|rcll|} \hline 5^2 &=& 12\cdot x \\ x &=& \frac{25}{12} \\ \hline \end{array}\)

Cathetus Theorem:

\(\begin{array}{|rcll|} \hline y^2 &=& x\cdot (x+12) \\ y^2 &=& \frac{25}{12}\cdot (\frac{25}{12}+12) \\ y^2 &=& \frac{25}{12}\cdot (\frac{25+144}{12}) \\ y^2 &=& \frac{25}{12}\cdot (\frac{169}{12}) \\ y^2 &=& \frac{5^2}{12^2}\cdot 13^2 \\ y &=& \frac{5 }{12 }\cdot 13 \\ y &=& \frac{65}{12 }\\ \hline \end{array}\)

cos x  =  √3 / 2

scientific notation 0.5401

\(0.5401 = 5.401\cdot 10^{-1}\)

if given the numbers 8,3,2,and 22 how do i find 34

\(\begin{array}{|rcll|} \hline 34 &=& (22+3-8)\cdot 2 \\ \hline \end{array} \)

please answer and simplify squareroot of -2 times square root of -12. Remember i factor.

\(\sqrt{-2}\cdot \sqrt{-12} = \sqrt{(-2)\cdot(-12)}=\sqrt{24}=\sqrt{4\cdot 6}=\sqrt{4}\cdot \sqrt{6}=2\cdot \sqrt{6}=4.89897948557\)

Or you could use the forward slash on the keyboard (/) and it will come up as a fraction at the top

The radius of the hour hand is 20 units

The radius of the minute hand is 2(20) = 40 units

The circumference of the hour hand's circle = 2(20)π = 40π units

The circumference of the minute hand's circle is 2(40)π = 80π units

The tip of the hour hand goes 1/12 of the circumference of its circle in one hour.

The tip of the minute hand goes 1 of the circumference of its circle in one hour.

The tip of the hour hand travels (1/12)(40π) = 10π/3 units

The tip of the minute hand travels (1)(80π) = 80π units

80π - 10π/3 = 230π/3 units ≈ 240.86 units

19 lol

19 lol

y=61,400*(1.00-.2)^x put in years and guess and check