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Questions and Answers

What is the general term for the sequence 3, 6, 9, 12,...?

  • u = n + 2
  • u = 3n + 2
  • u = 3n (correct)
  • u = 3^n
  • The sequence 3, -12, 48, -192,... is arithmetic.

    False

    What is the general term for the sequence 2, 10, 50, 150,...?

    u = 2 x 5^(n-1)

    The sequence 3, 6, 9, 12,... is classified as an ________ sequence.

    <p>arithmetic</p> Signup and view all the answers

    Match the sequences with their classifications:

    <p>3,6,9,12 = Arithmetic 3,-12,48,-192 = Geometric 2,10,30,150 = Geometric</p> Signup and view all the answers

    For the infinite geometric series, the upper limit is ______.

    <p>∞</p> Signup and view all the answers

    Match the following deposits to their corresponding month:

    <p>First Month = $100 Second Month = $200 Third Month = $300 Fourth Month = $400</p> Signup and view all the answers

    What is the computed sum of the series -1 + 4 - 9 + 16?

    <p>10</p> Signup and view all the answers

    What is the total amount Sebastian has to repay for his car loan after five years?

    <p>$38,750</p> Signup and view all the answers

    The interest on Habib's savings account is compounded annually.

    <p>False</p> Signup and view all the answers

    How much will be in Habib's account after four years?

    <p>$5865.99</p> Signup and view all the answers

    Leslie's student loan amount was $______ CAD.

    <p>12,090</p> Signup and view all the answers

    Match the following terms with their meanings:

    <p>Simple Interest = Interest calculated on the principal only Compound Interest = Interest calculated on the principal and accrued interest Principal = The original sum of money borrowed or invested QED = An abbreviation meaning 'what was to be demonstrated'</p> Signup and view all the answers

    What does QED stand for?

    <p>Quod Erat Demonstrandum</p> Signup and view all the answers

    Terms can jump from one side of a mathematical equation to the other side during the proof.

    <p>False</p> Signup and view all the answers

    What is the annual interest rate Leslie would be charged?

    <p>To be calculated</p> Signup and view all the answers

    What is the common ratio in the geometric series where the second term is 20 and the sixth term is 9?

    <p>0.45</p> Signup and view all the answers

    The sum to infinity of a geometric series can only be calculated if the common ratio is less than 1.

    <p>True</p> Signup and view all the answers

    How much interest will Angelina earn after 10 years on her initial deposit of $3000 with a 1.5% interest rate?

    <p>$450.0</p> Signup and view all the answers

    The maximum distance a ball can travel if dropped from a height of 20 m and rebounds to half its previous height is _____ m.

    <p>220</p> Signup and view all the answers

    Match the following interest rates with their corresponding actions:

    <p>1.5% = Angelina's savings account interest 2.75% = Brad's savings account interest 3% = Common interest rate for bonds 4% = Common interest rate for long-term loans</p> Signup and view all the answers

    What will Brad's investment amount to after 4 years with an interest rate of 2.75% compounded annually?

    <p>$6353.54</p> Signup and view all the answers

    What is the value of the term in Angelina's account at the start of January 2030 before her final deposit?

    <p>$xxxx.xx</p> Signup and view all the answers

    The sum of all integers between 500 and 1400 that are not divisible by 7 is _____ .

    <p>unknown</p> Signup and view all the answers

    What is the coefficient of the term in $x^5$ in the binomial expansion of $(3 + x)(4 + 2x)^5$?

    <p>840</p> Signup and view all the answers

    The constant term in the expansion of $ rac{1}{x - 4}$ represents the value when $x$ is equal to 4.

    <p>False</p> Signup and view all the answers

    What is the 6th term in a geometric series whose sum to infinity is 120 and the common ratio is 0.2?

    <p>3.2</p> Signup and view all the answers

    The value of $n$ for which the coefficient of $x^2$ in the binomial expansion of $(1 + 3x)^n$ is 495 is __________.

    <p>10</p> Signup and view all the answers

    Match the following mathematical operations with their corresponding results:

    <p>Expansion of $(2x - 1)(x - 3)$ = -2x² + 7x - 3 Expansion of $-2x(x - 3)^9$ = Term in $x^6$ Constant term in $(x^2 - 16)$ = 16 Sum of a convergent geometric series = To infinity</p> Signup and view all the answers

    In the expression $-x^2 - 31x + 51$, which term represents the linear term?

    <p>$-31x$</p> Signup and view all the answers

    The first three terms from the binomial expansion of $ rac{1}{x}$ always provides an exact approximation for $0.975$.

    <p>False</p> Signup and view all the answers

    The investment must reach $12,000 after _______ months.

    <p>12</p> Signup and view all the answers

    In a geometric progression, if the first term is $u_1$ and the seventh term is $u_7 = 22.78125$, which of the following could be the common ratio if $u_1 = 4.5$?

    <p>4</p> Signup and view all the answers

    A tank that contains 55 litres of water, losing water at a rate of 7% per minute, will have no water left after approximately 10 minutes.

    <p>True</p> Signup and view all the answers

    What is the 10th term of a geometric sequence if the fourth term is 8 times the first term and the sum of the first 10 terms is 765?

    <p>56.25</p> Signup and view all the answers

    The sequence of water left in the tank after each minute represents a ______ sequence.

    <p>geometric</p> Signup and view all the answers

    Match the following terms with their descriptions:

    <p>Geometric Sequence = A sequence with a constant ratio between consecutive terms Binomial Theorem = A formula to expand expressions of the form (a + b)^n Pascal's Triangle = A triangular array of binomial coefficients Loan Interest = The cost of borrowing money, typically expressed as an annual percentage</p> Signup and view all the answers

    How many terms are in the sequence 4, 7, 10,..., 61?

    <p>20</p> Signup and view all the answers

    In the binomial expansion of $(3x-y)^6$, the coefficient of the term in $x^2$ cannot be negative.

    <p>True</p> Signup and view all the answers

    What value of 'x' allows the three consecutive terms of a geometric sequence, x-3, 6, and x+2, to hold true?

    <p>3</p> Signup and view all the answers

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