Answer: Complementary Angles
Step-by-step explanation:
The angles shown add up to 90°. Complementary angles are angles that also add up to 90°
Answer:
The exponential function y = 2 ^ x has these properties:
A. The domain is the set of all real numbers.
B. The range is zero to infinity, (0, ∞).
C. The graph appears in Quadrants I and II and never touches the x-axis.
D. The function is always positive.
E. The inverse function of y = 2 ^ x is found b)y interchanging x and y here and solving x = 2^y for y: taking the natural log (ln) of both sides, ln x = y ln 2, so that y = (ln x) / (ln 2)
The above (E) can only be done if x is positive.
Answer:
5
Step-by-step explanation:
Since DE is tangent to the circle, that means DE is perpendicular to EF
==> DF = sqrt(4^2+3^2) = 5
<span>The key step is to rewrite the exponential notations so that the exponent is the same. Then you can deal with the addition just as you would adding two decimals. The best way is to rewrite the number with the smaller exponent.
6.30 x 10^11 = 0.0630 x 10^13
Now you are adding 6.28 x 10^13 and 0.0630 x 10^13, and your answer is (6.28 + 0.0630) x 10^13. You can do the addition in the parentheses using the usual rules for sig dig when you add decimals. If necessary, afterward, you can rewrite the exponent again so that the mantissa is between 1 and 10.</span>