3 - 13x - 7x^2 - (5x^2 + 12x - 10)
Distributing the negative over the parentheses chamges the signs:-
= 3 - 13x - 7x^2 - 5x^2 - 12x + 10
adding like terms:-
= -12x^2 - 25x + 13 (answer).
Its B
The exponential function that shows San Francisco area after x years is y = 49(0.98)ˣ
<h3>What is an
exponential function?</h3>
An exponential function is in the form:
y = abˣ
Where a is the initial value of y and b is the multiplication factor.
Let y represent the land area of San Francisco after x years. Hence:
The city is only about 49 square miles in area, a = 49. It is losing 2% yearly, hence b = 100% - 2% = 0.98
The equation becomes y = 49(0.98)ˣ
Find out more on exponential function at: brainly.com/question/12940982
615 miles, because you do 205*3
Answer:
0.032
Step-by-step explanation:
Answer:
y = 2/5x - 3
Step-by-step explanation:
Rearrange the equation to get y by itself.
5y = 2x + 5
y = 2/5x + 1
Using y = mx + b and knowing that parallel lines have the same slope plug in the coordinate points given.
-1 = 2/5(5) + b
-1 = 2 + b
b = -3
y = 2/5x - 3
