For the first one write 9 divided by 2 gives your your radius an it’s 3.5. the formula is 2 x 3.14 x radius and that gives you 21.98.
the 2nd one is 2 x 3.14 x 9 = 56.52
the 3rd is 2 x 3.14 x 5= 31.4
formula is always 2 x 3.14 (or pie) x radius
to get your radius from your diameter you do your diameter divided by 2
To find the multiplicative rate of change for the exponential function f(x) = 2(5/4)^-x (I am assuming that is what you meant), you would label the necessary key components of any exponential function, which would mean the number outside the parenthesis is the initial value, and the rate of change would be inside the parenthesis. Therefore the rate of change is 5/4. Hope this helps. Please rate, leave a thanks, and mark a brainliest answer (Not necessarily mine). Thanks, it really helps!
<h2>
Answer:</h2><h2>The angle of depression from the hiker to his car,
Θ = 56.39 degrees</h2>
Step-by-step explanation:
A hiker at the top of a mountain spots his car back in the parking lot at the
bottom of the trail. If the trail is 632 meters long and the mountain is 420
meters tall,
opposite side = 632 m
adjacent side = 420 m
Angle of depression, Θ = arctan
= arctan
Θ = 56.39 degrees
Order the numbers from least to greatest. 15, 20, –13, –20, –9, 7 A. 20, 15, 7, –9, –13, –20 B. –20, –9, 15, 20, –13, 7 C. 7, –1
Dovator [93]
Answer:
D
Step-by-step explanation:
the numbers on answer D are in order on the number line from LEAST to GREATEST