Pls help! 30 points!

Mathematics

2 answers:

ohaa [14]2 years ago

7 0

The top left hand graph represents the two equation. The open circle means it is less than but not equal. The closed sign always includes equal to. You have it marked correctly on the attachment I see.

Have a good day.

miss Akunina [59]2 years ago

6 0

Step-by-step explanation:

its the third onebecause i got it right

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Maria studied the traffic trends in India. She found that the number of cars on the road increases by 10% each year. If there we

Delvig [45]

Answer:

Step-by-step explanation:

Let's first find the exponential function that models the situation in year one. The exponential standard form is

$y=a(b)^x$ where a is the initial value and b is the growth/decay rate in decimal form. If it is growth it is added to 100% of the initial value; if it is decay it is taken away from 100% of the initial value. We are told that the number of cars in year one was 80 million, so

a = 80 (in millions)

If b is increasing by 10%, then we are adding that amount to the initial 100% we started with to give us 100% + 10% = 110% or, in decimal form, 1.1

The model for our situation is

$y=80(1.1)^x$ where y is the number of cars after x years goes by. We want to find the difference between years 3 and 2, so we will use our model twice, replacing x with both a 2 and then a 3 and subtracting.