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
Molodets [167]
4 years ago
8

Samuel took an antique clock that his grandfather had purchased, to be appraised. The appraiser evaluated the current price of t

he clock to be $400 and stated that the value will continue to increase at 2% per year.
Which of the following graphs shows the value of the antique clock, y, in dollars, after x years?

Mathematics
1 answer:
andrew11 [14]4 years ago
6 0
This is an exponential growth problem. Exponential growth can be expressed mathematically in the following way: 
y=a (1+r)^{t}.
Parameter a presents initial amount.
Parameter r is percentage increase. 
Parameter t is time.
An equation that would describe given problem is:
y=400 (1+0.02)^{t}
t is the time in years.
I attached the graph of this function.

You might be interested in
What does mx+b stand for
S_A_V [24]

Answer:

thats the equation for slope-intercept form

Step-by-step explanation:

m is the slope and b is where the line intercepts on the y axis

4 0
2 years ago
Read 2 more answers
Choose the correct classification of 3x^4 − 9x^3 − 3x^2 + 6.
aliina [53]
It's a 4th degree polynomial since the largest degree (exponent) is 4
6 0
4 years ago
Read 2 more answers
I need to show work and Idk how for 2 or 3. The -5,-2 and 8,3 is the answers just need work shown thanks
prisoha [69]
#2
2x - 4y = -2
2x + 3y = -16
------------------subtract
-7y = 14
y = 14/-7
y = -2

2x - 4y = -2
2x - 4(-2) = -2
2x + 8 = -2
2x = -2 -8
2x = -10
x = -10/2
x = -5
answer x = -2 and y = -5

check:

2(-5)- 4(-2) = -2
-10 +8 = -2
-2 = -2.....true

2x + 3y = -16
2(-5)+3(-2) = -16
-10 + (-6) = -16
-16 = -16...true


3 0
3 years ago
Graph the image of the figure after a dilation with a scale factor of 2 centered at (−2,−2). Use the Polygon tool to graph the q
kolbaska11 [484]

Answer:

  see below

Step-by-step explanation:

Every vertex moves twice as far from the center of dilation as it is in the pre-image.

Perhaps the easiest image point to find is the one at lower left. In the pre-image it is 2 units left of the center of dilation, so the image point will be 2×2 = 4 units left of the center of dilation. It will be located at (-6, -2).

Other points on the image can be found either by reference to the center of dilation, or by reference to known image points. For example, the next point clockwise is 1 left and 4 up in the pre-image, so will be 2 left and 8 up from (-6, -2) in the image. That is, the pre-image point (-5, 2) becomes image point (-8, 6). You will note that (-5, 2) is 3 left and 4 up from the center of dilation, and that (-8, 6) is 6 left and 8 up from the center of dilation (twice as far away).

5 0
3 years ago
) If the pattern shown continues, how many black keys appear on a portable keyboard with 49 white keys? Suggestion: use equivale
andriy [413]

Answer:

35

Step-by-step explanation:

Here we see 5 black keys for every 7 white keys.

So the ratio is 5:7

If we need 49 white keys, find the amount we scale the original ratio by:

    49/7 = 7

So we are scaling by a factor of 7.

The number of black keys would be 5 * the scale of 7. = 35

So there should be 35 black keys.

5 0
3 years ago
Read 2 more answers
Other questions:
  • What is the value of x?<br> 25 pts.<br> Enter your answer in the box.
    10·2 answers
  • I need help is it A B C or D
    13·1 answer
  • Elizabeth has a 15% discount coupon for a furniture store. She sees a new couch that she wants to buy. After the 15% discount wa
    11·1 answer
  • What are some factors of 42
    8·2 answers
  • How many terms are in 5x4-2x3+x-4
    10·1 answer
  • Write an equation in slope intercept form for the line with slope negative three fourths and y intercept of negative one
    7·1 answer
  • Use the graph of y=-2(x-3)^2+2 to find the vertex. Decide whether the vertex is a maximum or a minimum point.
    7·1 answer
  • Choose ALL the right triangles.
    12·2 answers
  • Can some please help me w this and explain it to me
    10·2 answers
  • If possible can someone help me with this problem.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!