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babunello [35]
3 years ago
11

I need to know the answers to them

Mathematics
1 answer:
Archy [21]3 years ago
4 0
9. P2 with a tiny 2
10. 18-x
11. K-4
12. Z+12 or 12+X
13. 82g or 82xG
14. N-7
15. 32/X
16. H+7
17. C-31
18. T5 with a little 5
19. R-(7/8)
20. 12T or 12xT or Tx12
21.200n or 200xN or Nx200
Hope that helps
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(1 pt) Let an=n+1n+3. Find the smallest number M such that: (a) |an−1|≤0.001 for n≥M M= 1997 (b) |an−1|≤0.00001 for n≥M M= 20000
xenn [34]

We want to prove

\displaystyle\lim_{n\to\infty}\frac{n+1}{n+3}=1

which is akin to saying that, for any given \varepsilon>0, we guarantee that

\left|\dfrac{n+1}{n+3}-1\right|

for all n exceeding some threshold N=N(\varepsilon).

We want to end up with

\left|\dfrac{n+1}{n+3}-1\right|=\left|-\dfrac2{n+3}\right|=\dfrac2{n+3}

\implies\dfrac{n+3}2>\dfrac1\varepsilon\implies n>\dfrac2\varepsilon-3

which suggests that we guarantee that a_n is arbitrarily close to 1 if N=\left\lceil\dfrac2\varepsilon-3\right\rceil. (Take the ceiling to ensure N is a natural number.)

Now for the proof: Let \varepsilon>0 be given. Then for n>N=\left\lceil\dfrac2\varepsilon-3\right\rceil we have

n>\left\lceil\dfrac2\varepsilon-3\right\rceil\le\dfrac2\varepsilon-3\implies\dfrac2{n+3}

QED

3 0
4 years ago
An odd number on a spinner with equal sized sections labeled 1-8
mixas84 [53]
Probability is
(desired outcomes)/(total possible outcomes)
total possible is 8 since 8 total spaces

A. number les than 4, there are 3 numbers (1,2,3) so
3/8 os probability

B. number greater than 4, ther are 4 (5,6,7,8), so 4/8=1/2 is probability

C. multiplule of 3, there are 2 (3,6) so 2/8=1/4 is probability

D. even number, there are 4 (2,4,6,8) so 4/8=1/2 is probability


A. 3/8
B. 1/2
C. 1/4
D. 1/2
7 0
4 years ago
What is the slope of the line passing through the points (-2, 6) and (1, -3)
8090 [49]

Answer:

slope is -3

Step-by-step explanation:

use slope equation, shown in picture hope this helps

5 0
4 years ago
Read 2 more answers
choose the equation that represents a line that represents a line that passes through points -3, 2 and 2,1 A. 5x+y=-13 B. 5x-y=1
Mrrafil [7]

bearing in mind that standard form for a linear equation means

• all coefficients must be integers, no fractions

• only the constant on the right-hand-side

• all variables on the left-hand-side, sorted

• "x" must not have a negative coefficient

\bf (\stackrel{x_1}{-3}~,~\stackrel{y_1}{2})\qquad (\stackrel{x_2}{2}~,~\stackrel{y_2}{1}) \\\\\\ slope = m\implies \cfrac{\stackrel{rise}{ y_2- y_1}}{\stackrel{run}{ x_2- x_1}}\implies \cfrac{1-2}{2-(-3)}\implies \cfrac{-1}{2+3}\implies -\cfrac{1}{5} \\\\\\ \begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-2=-\cfrac{1}{5}[x-(-3)]\implies y-2=-\cfrac{1}{5}(x+3)

\bf y-2=-\cfrac{1}{5}x-\cfrac{3}{5}\implies \stackrel{\textit{multiplying both sides by }\stackrel{LCD}{5}}{5\left(y-2 \right)=5\left( -\cfrac{1}{5}x-\cfrac{3}{5} \right)}\implies 5y-10=-x-3 \\\\\\ 5y=-x+7\implies x+5y=7

6 0
4 years ago
If _A = 28°, what must the measure of D be in order for A ABC to be similar
Mila [183]

Answer:

62°

Step-by-step explanation:

If it is a right triangle, subtract 90, from 180 and then subtract 28 to get D.  D should = 62°

5 0
3 years ago
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