3 years ago

1. Which graph models the equation y = 3.5x?

1 answer:

7 0

1) is C because the line is increasing not decreasing and it goes up 7 & right 2.
2) the y-intercept is -2 and the slope is up 3 over 1, so the answer has to be B
3) the answer is A because the up 2 over 3
4) the y-intercept is a positive 4, and the slope is going down 3 and to the right 5, and the line is decreasing so you know it has to be negative. the answer is D

You might be interested in

Which equation demonstrates the additive identity property?

kramer

It's the first one (7+4i)+(7-4i)=14

6 0

2 years ago

Rockport had 5,620 residents at the time of its founding. Currently there are 3,934 residents. What is the percent of decrease i

adell [148]

Answer:

30%

Step-by-step explanation:

percent decrease = (new - old) / old * 100 = (3934-5620)/5620 * 100 = 30%

3 0

1 year ago

One minute after it is released, a gas-filled balloon has risen 100 feet. In each succeeding minute, the balloon rises only 50%

goldfiish [28.3K]

The amount that it rises each minute forms a geometric sequence...

a(n)=ar^(n-1), and we know that a=100 ft and r=1/2 so

a(n)=100(1/2)^(n-1)

And the sum of a geometric sequence is:

s(n)=a(1-r^n)/(1-r)

s(n)=100(1-0.5^n)/(1-0.5)

s(n)=200(1-0.5^n)

So we can call these sums the height function

h(t)=200(1-0.5^t)

So after 5 minutes...

h(5)=200(1-0.5^5)

h(5)=193.75 ft

8 0

3 years ago

What is the circumference of the following circle?

Elodia [21]

Answer:

$31.415$