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2 years ago

Which equation represents an exponential function that passes through the point (2, 80)?

Mathematics

2 answers:

Sloan [31]2 years ago

5 1

The equation is y=mx+c where m is the gradient and c is the y-intercept

allsm [11]2 years ago

3 1

Answer:

Step-by-step explanation:

Given that the exponential function passes through the point (2,80)

Since only one point is given there may be more than one exponential function satisfying this.

One of them we select here is with base 4 and coefficient 5.

i.e.

$y=5(4^x)$

We can check whether (2,80) lies on it.

Substitute x=2 and y =80

Left side =80

Right side = $5(4^2)=80$

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Sabra went for a long hike and burned 845 calories in 3 1/4 hours.Nelson decided to go for a bike ride. He burned 1,435 calories

sergey [27]

Answer:

Nelson burned the most calories per hour

Explanation:

To solve this question, we will get the amount calories burned by each in one hour and then compare the two values

To do this, we will divide the total amount of calories burned by the total time

1- For Sabra:

We are given that she burnt 845 calories in $3\frac{1}{25}$ (which is equivalent to 3.25) hours

Therefore:

Calories burnt in an hour = $\frac{845}{3.25}=260$ calories/hour

2- For Nelson:

We are given that he burnt 1435 calories in $4\frac{7}{8}$ (which is equivalent to 4.875) hours

Therefore:

Calories burnt in an hour = $\frac{1435}{4.875}=294.36$ calories/hour

3- Comparing the two values:

From the above calculations, we can deduce that Nelson burned the most calories per hour

Hope this helps :)

3 0

3 years ago

Malik buys and sells car parts. He bought two tires for $45.00 each and later sold them for $65.00 each. He bought three rims fo

tatiyna

Answer: $75

Step-by-step explanation: First he bought tires for 45.00 dollars - later sold it as 65.0 dollars.

=> 65 - 45 = 20 dollars is his profit

he brought 3 rims for 85 dollar - then later sold it as 126 dollars

=> 126 - 85 = 41 dollars

He bought headlight for 5.00 dollars then sold it later for 15 dollars.

=> 15 - 5 = 10 dollars

Total expenses

=> 134

Total amount sold

=> 209

Profit => 209 - 134 = 75 dollars

6 0

2 years ago

8x - 1 - 9x I don’t understand

Ivan

-x-1
all you do is subtract 9x from 8x.

5 0

3 years ago

Which undefined terms are needed to define perpendicular lines?

SVETLANKA909090 [29]

C is the answer lil flock

7 0

3 years ago

Read 2 more answers

6/8w= -9/3 solve for w pls hurry I need help I will give brainliest

Vesnalui [34]

Answer: w=−4

Step-by-step explanation:

hoped this helped

3 0

2 years ago