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3 years ago

Write an equation to the nth term of the arithmetic sequence. (write the equation for the sequence)

Mathematics

1 answer:

azamat3 years ago

4 0

Answer:

15,13,11,9,…

Given

13 - 15 = -2

11 - 13 = -2

9 - 11 = -2

d = -2

when n = 515,13,11,9,…

Given

13 - 15 = -2

11 - 13 = -2

9 - 11 = -2

d = -2

when n = 515,13,11,9,…

Given

13 - 15 = -2

11 - 13 = -2

9 - 11 = -2

d = -2

when n = 5

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a student found the slope of a line that passes through the points (1,14) and (3,4) to be 5. what mistake did she make?

mariarad [96]

$x_{1}=1$
$x_{2}= 3$
$y_{1} =14$
$y_{2}=4$
$Slope= \frac{rise}{run} = \frac{ y_{2} - y_{1} }{ x_{2} - x_{1} } = \frac{4-14}{3-1} = \frac{-10}{2} =-5$

answer: The student flipped the y values

3 0

3 years ago

Anna wants to buy a car in two years and wants to have $10,000 for the purchase. How much will Anna need to deposit today in an

Brut [27]

Answer:

Anna will need to deposit $\$9,050.25$

Step-by-step explanation:

we know that

The compound interest formula is equal to

$A=P(1+\frac{r}{n})^{nt}$

where

A is the Final Investment Value

P is the Principal amount of money to be invested

r is the rate of interest in decimal

t is Number of Time Periods

n is the number of times interest is compounded per year

in this problem we have

$t=2\ years\\A=\$10,000\\ r=0.05\\n=12$

substitute in the formula above and solve for P

$10,000=P(1+\frac{0.05}{12})^{12*2}$

$10,000=P(1.0042)^{24}$

$P=10,000/(1.0042)^{24}$

$P=\$9,050.25$

8 0

3 years ago

Bob and Caitlyn are playing a trading-card game. Between them, they have 81 cards. Bob has 7 fewer cards than Caitlyn.

Alina [70]

We know that Bob and Caitlyn are playing a trading-card game. Between them, they have 81 cards. Bob has 7 fewer cards than Caitlyn. Since Bob has 7 cards fewer them Caitlyn we have to divide by 2 and subtract 7.

81 / 2 = 40 [rounded]

40 - 7 = cards Bob has

= 33 cards bob has

3 0

3 years ago

Read 2 more answers

Complete the table for the given rule rule: y= x/2 X Y 8 __ 14 __ __ 3

Oxana [17]

Answer:

X Y

8 4

14 7

6 3

Step-by-step explanation:

y = x/2