So you would plug in 0 for a from the beginning since this is numerical slope definition of a derivative
Answer:
1 ft : 2.5 yd or 1 ft : 2 1/2 yd
Step-by-step explanation:
He wants a real dimension of 10 yards to be represented by a scale dimension of 4 ft.
4 ft : 10 yd
Divide both sides by 4.
1 ft : 2.5 yd or 1 ft : 2 1/2 yd
Question:
Consider the sequence of numbers: ![\frac{3}{8}, \frac{3}{4}, 1\frac{1}{8}, 1\frac{1}{2}, 1\frac{7}{8}](https://tex.z-dn.net/?f=%5Cfrac%7B3%7D%7B8%7D%2C%20%5Cfrac%7B3%7D%7B4%7D%2C%201%5Cfrac%7B1%7D%7B8%7D%2C%201%5Cfrac%7B1%7D%7B2%7D%2C%201%5Cfrac%7B7%7D%7B8%7D)
Which statement is a description of the sequence?
(A) The sequence is recursive, where each term is 1/4 greater than its preceding term.
(B) The sequence is recursive and can be represented by the function
f(n + 1) = f(n) + 3/8 .
(C) The sequence is arithmetic, where each pair of terms has a constant difference of 3/4 .
(D) The sequence is arithmetic and can be represented by the function
f(n + 1) = f(n)3/8.
Answer:
Option B:
The sequence is recursive and can be represented by the function
![f(n + 1) = f(n) + \frac{3}{8} .](https://tex.z-dn.net/?f=f%28n%20%2B%201%29%20%3D%20f%28n%29%20%2B%20%5Cfrac%7B3%7D%7B8%7D%20%20.)
Explanation:
A sequence of numbers are
![\frac{3}{8}, \frac{3}{4}, 1\frac{1}{8}, 1\frac{1}{2}, 1\frac{7}{8}](https://tex.z-dn.net/?f=%5Cfrac%7B3%7D%7B8%7D%2C%20%5Cfrac%7B3%7D%7B4%7D%2C%201%5Cfrac%7B1%7D%7B8%7D%2C%201%5Cfrac%7B1%7D%7B2%7D%2C%201%5Cfrac%7B7%7D%7B8%7D)
Let us first change mixed fraction into improper fraction.
![\frac{3}{8}, \frac{3}{4}, \frac{9}{8}, \frac{3}{2}, \frac{15}{8}](https://tex.z-dn.net/?f=%5Cfrac%7B3%7D%7B8%7D%2C%20%5Cfrac%7B3%7D%7B4%7D%2C%20%5Cfrac%7B9%7D%7B8%7D%2C%20%5Cfrac%7B3%7D%7B2%7D%2C%20%5Cfrac%7B15%7D%7B8%7D)
To find the pattern of the sequence.
To find the common difference between the sequence of numbers.
![\frac{3}{4}-\frac{3}{8}=\frac{6}{8}-\frac{3}{8}= \frac{3}{8}](https://tex.z-dn.net/?f=%5Cfrac%7B3%7D%7B4%7D-%5Cfrac%7B3%7D%7B8%7D%3D%5Cfrac%7B6%7D%7B8%7D-%5Cfrac%7B3%7D%7B8%7D%3D%20%5Cfrac%7B3%7D%7B8%7D)
![\frac{9}{8}-\frac{3}{4}=\frac{9}{8}-\frac{6}{8}= \frac{3}{8}](https://tex.z-dn.net/?f=%5Cfrac%7B9%7D%7B8%7D-%5Cfrac%7B3%7D%7B4%7D%3D%5Cfrac%7B9%7D%7B8%7D-%5Cfrac%7B6%7D%7B8%7D%3D%20%5Cfrac%7B3%7D%7B8%7D)
![\frac{3}{2}-\frac{9}{8}=\frac{12}{8}-\frac{9}{8}= \frac{3}{8}](https://tex.z-dn.net/?f=%5Cfrac%7B3%7D%7B2%7D-%5Cfrac%7B9%7D%7B8%7D%3D%5Cfrac%7B12%7D%7B8%7D-%5Cfrac%7B9%7D%7B8%7D%3D%20%5Cfrac%7B3%7D%7B8%7D)
![\frac{15}{8}-\frac{3}{2}=\frac{15}{8}-\frac{12}{8}= \frac{3}{8}](https://tex.z-dn.net/?f=%5Cfrac%7B15%7D%7B8%7D-%5Cfrac%7B3%7D%7B2%7D%3D%5Cfrac%7B15%7D%7B8%7D-%5Cfrac%7B12%7D%7B8%7D%3D%20%5Cfrac%7B3%7D%7B8%7D)
Therefore, the common difference of the sequence is 3.
That means each term is obtained by adding
to the previous term.
Hence, the sequence is recursive and can be represented by the function
The decrease was 27%.
Step-by-step explanation:
Old value = $980
New value = $720
Decrease = Old value - New value
![Decrease=980-720=\$260](https://tex.z-dn.net/?f=Decrease%3D980-720%3D%5C%24260)
Percent decrease = ![\frac{Decreased/ amount}{Old value}*100](https://tex.z-dn.net/?f=%5Cfrac%7BDecreased%2F%20amount%7D%7BOld%20value%7D%2A100)
![Percent\ decrease=\frac{260}{980}*100\\Percent\ decrease=0.265*100\\Percent\ decrease= 26.5\%](https://tex.z-dn.net/?f=Percent%5C%20decrease%3D%5Cfrac%7B260%7D%7B980%7D%2A100%5C%5CPercent%5C%20decrease%3D0.265%2A100%5C%5CPercent%5C%20decrease%3D%2026.5%5C%25)
Rounding off to near whole percent
Percent decrease = 27%
The decrease was 27%.
Keywords: Percentage, subtraction
Learn more about subtraction at:
#LearnwithBrainly