1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Gennadij [26K]
3 years ago
9

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

Mathematics
2 answers:
Sloan [31]3 years ago
5 1
The equation is y=mx+c where m is the gradient and c is the y-intercept

allsm [11]3 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

You might be interested in
Billy buys a fridge.
Alex777 [14]
To answer this item, we let x represent the original price of the object or the fridge before it happened. 

The representation would lead us to conclusion that the total amount to be paid is equal to,

                   1.20x = £480

The value of x from the equation,

                     x = 400

The answer is <span>£</span>400
7 0
3 years ago
I need answers please just a few is fine
alina1380 [7]
The second one is correct so its 2
4 0
3 years ago
The perimeter of a frame is 24 inches.The width is 5 inches. What is the length
Kisachek [45]
Assuming the frame is rectangular, the perimeter is 2*width + 2*length. so 5*2 + 2*length = 24. subtract ten from both sides to get the 14 = 2*length. the length = 7.
4 0
3 years ago
1. Jamie purchases gifts for three friends. She chooses a book for $12.80 and then finds two identical necklaces. Her budget is
Evgen [1.6K]

Step-by-step explanation:

1.

  • (48 - 12.80)/2 = $17.6

2.

  • 250/6 ≈ 42 and more

3.

  • 485 - 319 = 166 more people

4.

  • 14.5x + 80 > 500
  • 14.5x > 420
  • x > 420/14.5
  • x > 29

5.

  • 1.25x + 3 ≤ 28
  • 1.25x ≤ 25
  • x ≤ 25/1.25
  • x ≤ 20 miles

6.  <em>This seems a typo... 460 is likely $60</em>

  • 60x + 145 ≤ 625
  • 60x ≤ 625 - 145
  • 60x ≤ 480
  • x ≤ 480/60
  • x ≤ 8 days

7 0
3 years ago
If an 8-foot ladder is leaned against a wall with its foot braced 4 feet from the wall's base, how far up the wall will the top
vivado [14]
We know that
see the picture to better understand the problem
in the right triangle ABC
Applying the Pythagoras Theorem
AB²=BC²+AC²-------> BC²=AB²-AC²
AB=8 ft
AC=4 ft
BC²=8²-4²-----> BC²=48--------> BC=√48-------> BC=6.93 ft

the answer is
6.93 ft

8 0
3 years ago
Other questions:
  • An astronaut drops a rock off the edge of a cliff on the Moon.
    13·1 answer
  • How to know if a limit exists
    7·1 answer
  • Is -14 an integer and a rational number?if not why
    8·1 answer
  • What is the value of X in this figure?<br><br> Answers:<br><br> 6<br> 6√3<br> 12√2<br> 12√3
    15·1 answer
  • Nick ate 1/3 of a melon, and Emma ate 1/2 of the melon. How much of the melon was eaten in total
    13·1 answer
  • Number 9 please. I need help
    9·1 answer
  • Whiw do you graph y=3x-2
    7·1 answer
  • If (4,-3) is the midpoint of the line segment ST and the coordinates of S are (1,5), find the
    8·1 answer
  • F(x)=4x+11 If f(x) = -1 what is the value of x
    9·2 answers
  • Simplify _4x+2y+z_3x+2y_2z ​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!