MathNerd(version2.0)

tan(3) = x/10

x = 10 * tan(3)

x = 0.52407779283

It's just 1 divided by the variable/constant to the absolute value of the exponent

Example:

x^(-5) = 1/x^5

If the angles are congruent, then

7x+15 = 2x+12

5x = -3

x = -3/5

2^x = 6

Reversed, this equation becomes log with a base of 2 of 6 equals x.

so enter log2(6) into the calculator and you should get 2.58

First of all, -4 * 5 = -20.

Then, n^5 * n^7 = n^(5+7) = n^12

So the final answer is -20n^12

$\frac{7.4*10^6}{6.8*10^-6} = \frac{7.4}{6.8}*\frac{10^6}{10^-6}$

7.4 / 6.8 is approximately 1.088. This multiplied by the second part is 1.088 * 10^12. After rounding to 1 significant figure, you would get 1 * 10^12

27 = 9x

27/9 = 9x/9

x = 3

if you mean y = 3* (-2) - 2, then y = -8

but you mean y = 3* (-2)(-2), then y = 12

What is sinx equal to?