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Artemon [7]
3 years ago
15

Which of the following statements contains a quotient? A. 7 + 6 = 13 B. 7 × 6 = 42 C. 42 ÷ 6 = 7 D. 7 – 6 = 1

Mathematics
2 answers:
My name is Ann [436]3 years ago
8 0
The quotient is the answer to a division problem. Therefore, C is the correct answer.
Airida [17]3 years ago
5 0
Mathematically, quotient means the solution you get when solving a division problem.

The only reliable choice is C)

Choice A) is called "the sum or total"
Choice B) is called "the product."
Choice D) is called the "the difference"

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How do I solve for y?
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The number 20 is multiplied either by 4 or by 5, then the product is increased either by 3 or by 5, and then the sum is divided
likoan [24]

Answer:

15

Step-by-step explanation:

If it was 20 × 4 = 80, 80 + 3 = 83 and 80 + 5 = 85 but neither of those numbers are divisible by either 6 or 7 so we know it's not 20 × 4. If we did 20 × 5 = 100, 100 + 3 = 103 and 100 + 5 = 105. Since 105 / 7 = 15 the answer is 15.

6 0
3 years ago
Read 2 more answers
PLEASE HELP
Tanzania [10]
<span>These are 14 questions and 14 answers.

Since this exceeds the limit and I had to delete the last questions and I copied all the answers to a file that is attache. See the attachment with all the answers.

1) Question 1. Find the first six terms of the sequence: a1 = -6, an = 4 • an-1


Answer: option D) -6, -24, -96, -384, -1536, -6144

Explanation:

A(1) = - 6

A(n) = 4 * A(n-1)

n                 A(n)

1                 - 6

2                  4 * (-6) = - 24

3                  4 * (-24) = - 96

4                  4 * (-96) = - 384

5                  4 * (-384) = - 1536

6                  4 * ( -1536) = -6144

So, the first six terms are: -6, - 24, - 96, - 384, - 1536, - 6144.

2) Question 2: </span><span>Find an equation for the nth term of the arithmetic sequence.
-15, -6, 3, 12, ...

</span>Answer: option D) - 15 + 9(n - 1)

Explanation:

1. find the difference between the consecutive terms:

-6 - (-15) = -6 + 15 = 9
3 - (-6) = 3 + 6 = 9
12 - 3 = 9

So, the difference is 9, and you can find any term adding 9 to the previous.

2. Since the first term is - 15, you have:

First term, A1 = - 15 + 9(0) = - 15
Second term, A2 =  - 15 + 9(1) = - 6
Third term, A3 = -15 + 9(2) = - 15 + 18 = 3
Fourth term, A4 = - 15 + 9(3) = - 15 + 27 = 12

3. So, the general formula is An = - 15 + 9 (n - 1), which is the option D)

3) Question 3. Find an equation for the nth term of the arithmetic sequence A14 = - 33, A15 = 9.

Answer: option B) An = - 579 + 42(n - 1)

Explanation:

1) Find the difference: 9 - (-33) = 9 + 33 = 42

2) A15 = A1 + 42 * (15 - 1)

=> A1 = A15 - 42(15 - 1)

A1 = A15 - 42(14)

A1 = 9 - 588 = - 579

Therefore, the formula es An = - 579 + 42(n - 1)

4) <span>Question 4. Determine whether the sequence converges or diverges. If it converges, give the limit.

48, 8, 4/3, 2/9, ...
</span>

Answer: the sequence converges to 288/5

Explanation:

That is a geometric sequence.

The ratio is 1/6: 8/48 = 1/6; (4/3) / 8 = 4/24 = 1/6; (2/9)/(4/3) = 6/36 = 1/6.

The convergence criterium is that if |ratio| < 1 then the series, this is the sum of all the terms, converge to: A1 / (1 - ratio)

Then the limit 48 / (1 - 1/6) = 48 / (5/6) = 48*6 / 5 = 288/5

5) Question 5. Find an equation for the nth term of the sequence.

-3, -12, - 48, -192

Answer: - 3 * (4)^(n-1)

Explanation: clearly any term (from the second) is the previous term multiplied by 4.

The first term is  -3
The second term is -3(4) = - 12
The third term is -3(4)(4)= - 48
The fourth term is - 3 (4)(4)(4) = - 192

So, the general formula for the nth term is -3 * 4^ (n-1)

6) Question 6. <span>Find an equation for the nth term of a geometric sequence where the second and fifth terms are -21 and 567, respectively.

Answer: </span><span>An =7 * (-3)^(n-1)

Explanation:

1) The fith term is the second term * (ratio)^3: A5 = A3 * (r)^3

2)  A5 = 567, A2 = - 21 => r^3 = A5 / A2 = - 567 / 21 = - 27

=> r = ∛(-27) = - 3

3) So the first term is A1 = A2 / r = -21 / -3 = 7

4) The general formula is

An =7 * (-3)^(n-1)

7) Question 7.</span><span><span> Write the sum using summation notation, assuming the suggested pattern continues.

5 - 15 + 45 - 135 + ... </span>

Answer: option B) </span><span>summation of five times negative three to the power of n from n equals zero to infinity

Explanation:

5 = 5
-15 = 5 (-3)
45 = 5(-3)^2
-135 = 5(-3)^3

=> 5 + 5(-3) + 5(-3)^2 + 5(-3)^3+....

Using the summation notation that is:

∞
∑ (5)(-3)^n
n=0

Which means </span>summation of five times negative three to the power of n from n equals zero to infinity

8) Question <span>8. Write the sum using summation notation, assuming the suggested pattern continues.
-9 - 3 + 3 + 9 + ... + 81

Answer: option </span><span>A) summation of the quantity negative nine plus six n from n equals zero to fifteen

Explanation:

Find the difference:

-3 - (-9) = - 3 + 9 = 6
3 - (-3) = 3 + 3 = 6
9 - 3 = 6

First term: - 9
Second term: - 9 + 6(1)
Third term: - 9 + 6(2)

nth term = - 9 + (n -1)

Summation = [- 9] + [- 9 + 6(1) + [-9 + 6(2)] + [-9 + 6(3) ]+ .... [-9 + 6(15) ]

Using summation notation:

15
∑ [-9 + 6n]
n=0

which means </span><span>summation of the quantity negative nine plus six n from n equals zero to fifteen.


</span>9) Question 9. Write the sum using summation notation, assuming the suggested pattern continues.
<span>

64 + 81 + 100 + 121 + ... + n2 + ...</span><span>

Answer: A) summation of n squared from n equals eight to infinity</span><span>

Explanation:</span><span>

64 = 8^2
</span>

<span>81 = 9^2
</span>

100 = 10^2

<span>121 = 11^2
</span>

<span>n^2
</span>

<span>
</span>

<span>=>
</span>

<span>∞
</span>

<span>∑ n^2
</span>

<span>n=8
</span>


which means <span>summation of n squared from n equals eight to infinity</span>

<span> 10) Question 10. Find the sum of the arithmetic sequence.
17, 19, 21, 23, ..., 35
</span>

<span>
</span>

<span>Answer: 260
</span>

<span>
</span>

<span>Explanation:
</span>

<span>The difference is 2:
</span>

<span>The sum is: 17 + 19 + 21 + 23 + 25 + 27 + 29 + 31 + 33 + 35.
</span>

<span>You can use the formula for the sum of an arithmetic sequence:
</span>

<span>
</span>

<span>(A1 + An) * n / 2 = (17 + 35)*10/2 = 260
</span>

<span>

11) Question 11. Find the sum of the geometric sequence. </span>

<span> 1, 1/2, 1/4, 1/8, 1/16</span>

<span>Answer: option D) 31/16</span>

<span>
</span>

<span>Explanation:
</span>

<span>
</span>

<span>You can either sum the 5 terms or use the formula for the partial sum of a geometric sequence.
</span>

<span>The formula is: Sum = A * ( 1 - r^n) / (1 - r)
</span>

<span>
</span>

<span>Here A = 1, r = 1/2, and n = 5 => Sum = 1 * (1 - (1/2)^5 ) / (1 - 1/2) =
</span>

<span>
</span>

<span>= [ 1 - 1/32] / [1/2] = [31/32] / [1/2] = 31 / 16
</span>

Download pdf
3 0
3 years ago
Read 2 more answers
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