Answer:
f(x) = 2^x
ln f(x) = ln 2^x
ln f(x) = x ln 2
Step-by-step explanation:
For the 1st hour the cost is $50 whatever is the duration (providing it's 1 hour max.
From one hour and onward the cost becomes an additional $25 per quater of an hour.
If y is the cost and x the number of hours, then the equation becomes :
y =50 + 0.25.x or y =1/4x + 50
Answer:
135
Step-by-step explanation:
180- 45= 135
The actual measurement of the length of the colored face of the aquarium is <u>D. 36 inches by 14 inches</u>.
<h3>What is a scale drawing?</h3>
Generally, a scale drawing is described as a drawing that has been reduced or enlarged from its original size to a specified scale.
For instance, the scale of the drawing of the original aquarium is ¹/16. This implies that the length, width, and height have been scaled down to one-sixteenth of the original size.
<h3>Data and Calculations:</h3>
Scale drawing = ¹/16 of the original aquarium
Length of the colored face = 2¹/₄ inches
The actual length of the colored face = 36 inches (2¹/₄ inches x 16)
Thus, the actual measurement of the length of the colored face of the aquarium is <u>D. 36 inches by 14 inches</u>.
Learn more about measurements at brainly.com/question/24842282
The first one is x^2 -9x +20
The second one is x^2 -12x +20
The third one is x^2 +x -20
The fourth one is x^2 - 8x -20