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1 year ago

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Let x represent BC. Using either ABC or CAB and trigonometric functions, solve for x to three decimal places in at least three d

ifferent ways.
Show your work for each way you find x.

1 answer:

mezya [45]1 year ago

5 0

Answer:

Step-by-step explanation:

plato answer

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Two race cars,car x an y,are at the starting point of a two km track at the same time.car x and car y make one lap every 60 s an

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Answer is attached.

Please check the image.

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3 years ago

Simplify (3x+2)(x-7)

vovangra [49]

The answer is
$3 {x}^{2} - 19x - 14$
first you must multiply or use the FOIL method (First, Outer, Inner, Last)
First you multiply the first terms
$(3x)(x)$
this gives you 3x^2, then you multiple the outer terms
$( - 7)(3x)$
this gives you -21x, then you multiply the inner terms
$(2)(x)$
that gives you 2x, finally you multiply the last terms
$(2)( - 7)$
that gives you 14, now you combine like terms
$- 21x + 2x = - 19x$
now you put all the terms together and end up with your solution
$3 {x}^{2} - 19x - 14$

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3 years ago

Read 2 more answers

How to <br> Graph y= 2/3x - 4

Alecsey [184]

Step-by-step explanation:

y iterscept is -4 slope 2/3 rise over run

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2 years ago

The manager of a music store has kept records of

Marysya12 [62]

Answer:

(a) $P(x\le 3) = 0.75$

(b) $P(x\le 3) = 0.75$

<em>(b) is the same as (a)</em>

(c) $P(x \ge 5) = 0.10$

(d) $P(x = 1\ or\ 2) = 0.55$

(e) $P(x > 2) = 0.45$

Step-by-step explanation:

Given

$\begin{array}{ccccccc}{CDs} & {1} & {2} & {3} & {4} & {5} & {6\ or\ more}\ \\ {Prob} & {0.30} & {0.25} & {0.20} & {0.15} & {0.05} & {0.05}\ \ \end{array}$

Solving (a): Probability of 3 or fewer CDs

Here, we consider:

$\begin{array}{cccc}{CDs} & {1} & {2} & {3} \ \\ {Prob} & {0.30} & {0.25} & {0.20} \ \ \end{array}$

This probability is calculated as:

$P(x\le 3) = P(1) + P(2) + P(3)$

This gives:

$P(x\le 3) = 0.30 + 0.25 + 0.20$

$P(x\le 3) = 0.75$

Solving (b): Probability of at most 3 CDs

Here, we consider:

$\begin{array}{cccc}{CDs} & {1} & {2} & {3} \ \\ {Prob} & {0.30} & {0.25} & {0.20} \ \ \end{array}$

This probability is calculated as:

$P(x\le 3) = P(1) + P(2) + P(3)$

This gives:

$P(x\le 3) = 0.30 + 0.25 + 0.20$

$P(x\le 3) = 0.75$

<em>(b) is the same as (a)</em>

<em />

Solving (c): Probability of 5 or more CDs

Here, we consider:

$\begin{array}{ccc}{CDs} & {5} & {6\ or\ more}\ \\ {Prob} & {0.05} & {0.05}\ \ \end{array}$

This probability is calculated as:

$P(x \ge 5) = P(5) + P(6\ or\ more)$

This gives:

$P(x\ge 5) = 0.05 + 0.05$

$P(x \ge 5) = 0.10$

Solving (d): Probability of 1 or 2 CDs

Here, we consider:

$\begin{array}{ccc}{CDs} & {1} & {2} \ \\ {Prob} & {0.30} & {0.25} \ \ \end{array}$

This probability is calculated as:

$P(x = 1\ or\ 2) = P(1) + P(2)$

This gives:

$P(x = 1\ or\ 2) = 0.30 + 0.25$

$P(x = 1\ or\ 2) = 0.55$

Solving (e): Probability of more than 2 CDs

Here, we consider:

$\begin{array}{ccccc}{CDs} & {3} & {4} & {5} & {6\ or\ more}\ \\ {Prob} & {0.20} & {0.15} & {0.05} & {0.05}\ \ \end{array}$

This probability is calculated as:

$P(x > 2) = P(3) + P(4) + P(5) + P(6\ or\ more)$

This gives:

$P(x > 2) = 0.20+ 0.15 + 0.05 + 0.05$

$P(x > 2) = 0.45$

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2 years ago

Which of the following is a polynomial?

Tcecarenko [31]

Answer:

(D.) 3x^2 + 6x

Step-by-step explanation:

the other options aren't complete and some don't even create a parabola.

3 0

2 years ago