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joja [24]
3 years ago
12

Kinda confused on this one, someone help please!

Mathematics
2 answers:
Leno4ka [110]3 years ago
7 0
As x increases from 0 to 1, y decreases from 89 to 55.  This could happen if 89 were multiplied by the rate of change factor 0.62:  0.62(89) = 55.  Likewise, if we mult. 55 by 0.62, we get 34, which also agrees with the table values for y.

Thus, this is an example of exponential decay, with decay constant 0.62.

trapecia [35]3 years ago
4 0
To determine which type of graph this is, look at the estimated population, and look at the differences between each point:

89, 55, 34, 21, 13

Differences: 34, 21, 13, 8

The differences are all different values, so linear can be removed.

Because the graph is decreasing at a rate, we can eliminate both quadratic answers, as they would have increasing values.

The answer is 'exponential; y = 89 * 0.62^x'.
You might be interested in
The difference between 3 times a number x and 2 is 19. What is the value of x?
Ber [7]

Answer:

the value of x is 7.

Step-by-step explanation:

2+19=21

21÷3=7

Check:

3×7=21

21-2=19

Therefore, 7 is the answer.

6 0
3 years ago
Please solve the system of equations below thank you<br> explain if u can
ivanzaharov [21]
First let’s try to cancel out the x
5x + -5x = 0
Add the y and the numbers together
-3y + -2y = -5y
26 + -16 = 10
-5y = 10
y = -2
Use y=-2 in one of the equations
-3(-2) + 5x = 26
6 + 5x = 26
5x = 20
X = 4

So
Y= -2
X= 4

https://mathsmadeeasy.co.uk/gcse-maths-revision/simultaneous-equations-gcse-maths-revision/

Check this link out for more help!
7 0
2 years ago
Nick can read 3 pages in 1 minute. write the ordered pairs for nick reading 0,1,2 and 3 min
Elis [28]
For 0 minutes, it would be 0 minutes (obviously)
for 1 minute, it would be 3
for 2 minutes, it would be 6 pages
and finally, 3 minutes, will be 9.
to get the answers, you would just have to add 3, since every minute, nick reads 3 pages.
4 0
3 years ago
A grocer stacks oranges in a four-sided pyramid that is 7 layers high. How many oranges are in the pile?
gayaneshka [121]
Short Answer D
P(1) = 1(1+1)(2*1 + 1)/6
P(1) = 1(2)(2 +1) / 6
P(1) = 1(2)(3)/6
P(1) = 1

P(2) = 2(2+1)(2*2 + 1) / 6
P(2) = 2(3)(5) / 6
P(2) = 5 So this formula is adding as it goes along. To Find the Total all we need do is use the formula to calculate P(1) to P(7)

P(7) = 7*(7 + 1)(2*7 + 1)/6
P(7) = 7 * 8 * 15 / 6
P(7) = 7 * 4 * 5 
P(7) = 140 <<<< Answer
4 0
3 years ago
Change the fraction 1/5 to a percent.
denis23 [38]
\frac{1}{5} \cdot 100 \ \% = 0.2 \cdot 100 \ \% = 20 \ \%.
5 0
3 years ago
Read 2 more answers
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