D is the answer
Multiply 15 times 30 and divide by 2.25
The LCD here is 20. Thus, 1/4 = 5/20. The sum of 5/20 and 13/20 is 18/20, which can be reduced to 9/10.
hence, the common ratio of the given G.P. is 3 or −3.
The function y = -16x² + 48x + 64 is a non linear function with a parabolic shape graph.
<h3>What is an
equation?</h3>
An equation is an expression that shows the relationship between two or more numbers and variables.
A non linear function is a function whose graph is not linear or can be represented by a straight line.
The function y = -16x² + 48x + 64 is a non linear function with a parabolic shape graph.
Find out more on equation at: brainly.com/question/2972832
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Answer:
x=5
Step-by-step explanation:
20(20-x) = 300
Divide each side by 20
20/20(20-x) = 300/20
20-x = 15
Subtract 20 from each side
20-x-20 = 15-20
-x = -5
Multiply each side by -1
x = 5