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SSSSS [86.1K]
3 years ago
6

Find the 39th term of the arithmetic sequence

Mathematics
1 answer:
myrzilka [38]3 years ago
8 0

Answer:

  -142

Step-by-step explanation:

You seem to have an arithmetic sequence with first term -66 and common difference (-68-(-66)) = -2. The general term of such a sequence is given by ...

  an = a1 +d(n -1) . . . . . for first term a1 and common difference d

We want to evaluate this equation for a1 = -66, d = -2, n = 39:

  a39 = -66 -2(39 -1) = -66 -76 = -142

The 39th term is -142.

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11) a - 15 &gt;-40-6 + 3a)<br>​
SOVA2 [1]

Answer:

a < \frac{31}{2}

Step-by-step explanation:

Given

a - 15 > - 40 - 6 + 3a ← simplify right side

a - 15 > - 46 + 3a ( subtract a from both sides )

- 15 > - 46 + 2a ( add 46 to both sides )

31 > 2a ( divide both sides by 2 )

\frac{31}{2} > a ⇒ a < \frac{31}{2}

4 0
3 years ago
Which of the following statements
irga5000 [103]

Answer:

tqweryetqwewrqfvwrq

Step-by-step explanation:

5 0
3 years ago
At Best Buy they have a stereo system that sells for $2200 and is on sale for 15% and sales tax is 7% what is the final cost
vlada-n [284]

The sales price is 85% of the original $2,200, which can be calculated as follows: .85(2,200) = 1870 Assuming you meant 15% discount price..

Now we need to find a 7% sales tax, which can be calculated as follows:

.07(1870) = 130.90

Now we add the sale price and the sales tax: 1870 + 130,90 = $2000.90 for the total cost.

6 0
2 years ago
Can someone find the median? I got 177 divided by 2 but not sure
Lostsunrise [7]
Greetings!

The Median refers to the middle of the set of number! So line up the numbers from largest to smallest or vice versa:
97,94,89,88,88,83

The middle number(s) is/are:
89 and 88.

Now we can use the same technique to find the mode, using the two number:
=88+89

=177

Now divide the sum by the number of numbers (2):
= \frac{177}{2}

=88.5

The Median is:
\left[\begin{array}{ccc}88.5\end{array}\right]

Hope this helps!
-Benjamin


8 0
3 years ago
Triangle ABC has vertices A(1,4), B(−2,4) , and C(−1,−1) . A dilation with a scale factor of 0.25 and center at the origin is ap
zloy xaker [14]
So multiply to get answer.

B' is (-2*.25, 4*.25), or (-0.5, 1)

Answer: (-0.5, 1)
6 0
3 years ago
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