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WINSTONCH [101]
3 years ago
12

Find the 22nd term of the sequence described by the explicit formula: f(n) = 8 + 3(n - 1)

Mathematics
1 answer:
kari74 [83]3 years ago
5 0
<h3><u>Answer:</u></h3>

\boxed{\boxed{\pink{\bf \leadsto The \ 22nd \ term \ is \ 71. }}}

<h3><u>Step-by-step explanation:</u></h3>

Given that the nth term of the Arthemetic Sequence is given by :-

\implies f(n) = 8 + 3(n-1)

And we need to find the 22nd term .

So in place of n substitute 22 .

\bf\implies f(n) = 8 + 3(n-1) \\\\\bf\implies f_{22} = 8 + 3(22-1) \\\\\bf\implies f_{22} = 8 + 3\times 21 \\\\\bf\implies f_{22} = 8 + 63 \\\\\bf\boxed{\bf\implies f_{22} = 71 }

<h3><u>Hence </u><u>the</u><u> </u><u>2</u><u>2</u><u>n</u><u>d</u><u> </u><u>term</u><u> </u><u>is</u><u> </u><u>7</u><u>1</u><u> </u><u>.</u></h3>
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A bag contains 8 yellow marbles and 7 red marbles. What is the probability of pulling out a yellow marble?
White raven [17]

Answer:

8/15

Step-by-step explanation:

there are 8 yellow marbles and 15 total marbles

5 0
3 years ago
Select the correct answer. What is the solution to |x − 6| ≥ 5? A. 1 ≤ x ≤ 11 B. -11 ≤ x ≤ 1 C. x ≥ 11 or x ≤ 1 D. x ≥ 1 or x ≤
diamong [38]

The absolute value of a number <em>a</em> is written as  |a|  . And represents the distance between a and 0 on a number line.

So, Option C. x≥ 11 or x ≤ 1 is correct answer

Inequality given is,

                              |x − 6| ≥ 5

Taking <em>positive case,</em>

                               x − 6 ≥ 5

                               x − 6 + 6 ≥ 5 + 6

                                x ≥ 11

Taking <em>negative case,</em>

                                 x − 6 ≤  - 5

                                x - 6 + 6 ≤ -5 + 6

                                   x ≤ 1

So, solution of given inequality is  x ≥ 11 or   x ≤ 1

Learn more:

brainly.com/question/1779337

5 0
3 years ago
Find a polynomial P(x) with real coefficients having a degree 4, leading coefficient 4, and zeros 3-i and 4i.
Alisiya [41]

now, this polynomial has roots of 3-i and 4i, namely 3 - i and 0 + 4i.

let's bear in mind that a complex root never comes all by her lonesome, her sibling is always with her, the conjugate, so if 3 - i is there, 3 + i is also coming along, likewise if 0 + 4i is there, her sibling 0 - 4i is also there.

\bf \begin{cases} x=3-i\implies &x-3+i=0\\ x=3+i\implies &x-3-i=0\\ x=4i\implies &x-4i=0\\ x=-4i\implies &x+4i=0 \end{cases}\\\\[-0.35em] ~\dotfill\\\\ (x-3+i)(x-3-i)(x-4i)(x+4i)=\stackrel{y}{0} \\[2em] \underset{\textit{difference of squares}}{[(x-3)+i][(x-3)-i]}\underset{\textit{difference of squares}}{[x-4i][x+4i]}=0

\bf [(x-3)^2-i^2][x^2-(4i)^2]=y\implies [(x-3)^2-(-1)][x^2-(4^2i^2)]=0 \\[2em] [(x-3)^2-(-1)][x^2-(16(-1))]=0\implies [(x-3)^2+1][x^2+16]=0 \\[2em] [(x^2-6x+9)+1][x^2+16]=y\implies (x^2-6x+10)(x^2+16)=0 \\\\\\ x^4-6x^3+10x^2+16x^2-96x+160=0 \\\\\\ x^4-6x^3+26x^2-96x+160=0 \\\\\\ \stackrel{\textit{multiplying both sides by 4}}{4(x^4-6x^3+26x^2-96x+160)=4(0)} \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ ~\hfill 4x^4-24x^3+104x^2-384x+640=y~\hfill

3 0
4 years ago
Which relationships describe angles 1 and 2?
iVinArrow [24]
Vertical angles hope that helps
6 0
3 years ago
Read 2 more answers
Select the two values of x that are roots of this equation.
Aliun [14]

Answer:

A and C

x = -(√17 - 5)/2, (√17 + 5)/2

Step-by-step explanation:

Quadratic Formula: x = \frac{-b +/-\sqrt{b^2-4ac} }{2a}

Step 1: Use quadratic formula

<em>a</em> = 1, <em>b</em> = -5, <em>c</em> = 2

x = \frac{5 +/-\sqrt{(-5)^2-4(1)(2)} }{2(1)}

x = \frac{5 +/-\sqrt{25-8} }{2}

x = \frac{5 +/-\sqrt{17} }{2}

3 0
3 years ago
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