Answer: 50%
Step-by-step explanation:
<em><u>Answer:</u></em>
<em><u>y = 5, 3; x = 171, 155</u></em>
<em><u>Step-by-step explanation:</u></em>
8y - 15 = y^2
y^2-8y+15=0
y^2-3y-5y+15=0
y(y-3)-5(y-3)=0
(y-5)(y-3)=0
y can be 5 or 3.
x = 180 - (8y - 15)
x = 180 - (8(3)-15)
x = 180 - 9
x = 171
OR
x = 180 - (8(5) - 15)
x = 180 - 25
x = 155
By graphing the function, we can see that we have 3 real solutions and 2 non-real solutions.
<h3>
How many real and nonreal solutions does the equation have?</h3>
To check this, we need to graph the equation and see how many times it intersects the x-axis.
Because the degree is 5, we know that there are 5 solutions in total.
Now if we look at the graph, we can see that it intersects the x-axis on 3 points, so there are 3 real solutions. And because there are 5 solutions in total, we conclude that the other 2 solutions are non-real.
So we have 3 real solutions and 2 non-real solutions.
If you want to learn more about polynomials:
brainly.com/question/4142886
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Answer:
37.3
Step-by-step explanation
you add the total of the weekly used minutes and subtract that from 120 because thats the amnt on the card and you get 37.3 mins
Answer:
Number of cards at week n = 10,000(0.85)^(n-1).
At week 6 Dylan has 4437 cards.
Step-by-step explanation:
At the start of week 1 he had 10,000 = 10,000(0.85)^0 cards.
So at the start of week 2 he had 10,000(0.85)^(2-1) cards.
Number of cards for week n = 10,000(0.85)^(n-1).
Number of he will have at the start of the 6th week
= 10,000(0.85)^(6-1)
= 4437 cards (answer).
