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Dahasolnce [82]
3 years ago
10

What is the ninth term of the arithmetic sequence defined by the rule below? A(n)= -14+(n-1)(2)

Mathematics
2 answers:
Usimov [2.4K]3 years ago
6 0
We need to just plug in n = 9 into the rule to find out the 9th term.

A(9)= -14+(9-1)(2)

Subtract 9-1
A(9) = -14+(8)(2)

Multiply 8*2
A(9) = -14+16

Add -14+16, which is the same as 16-14
A(9) = 2

The 9th term is 2.



Crazy boy [7]3 years ago
3 0
A(9) = -14 + (9-1)(2)
A(9) = -14 + (8)(2)
A(9) = -14 + 16
A(9) = 16 - 14

A(9) = 2
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Dafna1 [17]
Dist from slide to fountain: 200 ft, because they are 2 grid spaces away from each other (y axis, coordinate (-2, 0) to coordinate (-2, -2))

dist from fountain to swings is 700 ft, because they are 7 grid spaces away from each other (x axis, coordinate (5, -2) to (-2, -2))

easy as 3.14159 (pi) xd
8 0
3 years ago
Anna worked 3 hours a day for seven days. she made a total of 94.50. how much did she make per hour?
MrMuchimi

Answer:

31.5

Step-by-step explanation:

just divide the numbers

8 0
3 years ago
Martin's unpaid credit card balance was $1539.39. his APR is 13.2%. what is his new balance after he makes one new transaction f
irinina [24]
Given that <span>Martin's unpaid credit card balance was $1539.39 and his APR is 13.2%.

APR is the annual interest rate, to get the monthly interest rate, we divide the APR by 12.

Thus, monthly interest rate is </span>i= \frac{13.2\%}{12} =1.1%

The interest charge for the month is given by I=Pi, where P is the previous balance, i is the monthly interest rate.

Thus, interest charge is I=1,539.39(0.011)=1,539.39(0.011)=\$16.93

The balance after the monthly interest charge = $1,539.39 + $16.93 = $1,556.32

Therefore, the balance after the new transaction is given by $1,556.32 + $178 = $1734.32
4 0
3 years ago
Find the distance between <img src="https://tex.z-dn.net/?f=%5Cfrac%7B7%7D%7B12%7D" id="TexFormula1" title="\frac{7}{12}" alt="\
jek_recluse [69]

Answer:

5/36

Explanation:

Distance on a number line is basically difference between two numbers. So we subtract the two numbers. This can be solved on a calculator btw. 7/12 - √16/81 = 5/36.

3 0
2 years ago
Write an inequality to describe the region. The solid upper hemisphere of the sphere of radius 5 centered at the origin
dusya [7]

Answer:

x^2 + y^2 + z^2 \le 25 for z \ge 0

Step-by-step explanation:

Given

r = 5 --- radius

Required

Determine the inequality of the region

The inequality of a region of a sphere is determined using:

x^2 + y^2 + z^2 \le r^2

Substitute 5 for r

x^2 + y^2 + z^2 \le 5^2

x^2 + y^2 + z^2 \le 25

Solving further: <em>The question says only the upper hemisphere is considered.</em>

This implies that:

z \ge 0

<em>So, the equation is:</em>

x^2 + y^2 + z^2 \le 25

z \ge 0

5 0
3 years ago
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