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3 years ago

10

Explain the connections and parallels in finding missing side lengths and angle measures in a right triangle using the trigonome

tric functions

1 answer:

quester [9]3 years ago

4 0

This th8 sky and lengths of angle measurez

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1 4/5 cm by 4 2/5 cm

LenaWriter [7]

If it is area you're looking for, the answer is 7.92 cm^2, or ~7 11/12 cm^2.

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3 years ago

sally has a pet snail that snail fell in the well the well is 16 feet deep. each day the snail climbs up 5 feet but each night i

vlada-n [284]

<em>Answer:</em>

<em>The net speed per 24 hours is 5 - 4 = 1 foot. </em>

<em>1 ft / 24 hrs = 16 ft / x hrs </em>

<em> </em>

<em>16 * 24 hrs = 16 days (384 hrs) </em>

<em />

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3 years ago

How many times can 15 go into 170

Aleks04 [339]

11 times with a remainder of 5

7 0

3 years ago

Read 2 more answers

The polynomial x^2+3x-1 is a factor of x^4+3x^3-2x^2-3x+1 true or false?

pashok25 [27]

Answer:

Yes, it is true that $x^2+3x-1$ is a factor of $x^4+3x^3-2x^2-3x+1$ .

Step-by-step explanation:

Let us try to factorize $x^4+3x^3-2x^2-3x+1$

$x^4+3x^3-2x^2-3x+1\\\Rightarrow x^4-2x^2+1-3x+3x^3$

Let us try to make a whole square of the given terms:

$\Rightarrow (x^2)^2-2\times x^2 \times 1+1^2+3x^3-3x\\\Rightarrow (x^2-1)^2+3x^3-3x\\$

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Formula used above:

$a^{2} -2 \times a \times b +b^{2} = (a-b)^2$

In the above equation, we had $a = x, b = 1$ .

--------------

Further solving the above equation, taking $3x$ common out of $3x^3-3x$

$\Rightarrow (x^2-1)^2+3x(x^2-1)\\$

Taking $(x^{2} -1)$ common out of the above term:

$\Rightarrow (x^2-1)((x^2-1)+3x)\\\Rightarrow (x^2-1)(x^2+3x-1)$

So, the two factors are $(x^2-1)\ and\ (x^2+3x-1)$ .

$\therefore$ The statement that $x^2+3x-1$ is a factor of $x^4+3x^3-2x^2-3x+1$ is <em>True.</em>

7 0

3 years ago

Combine like terms. What is a simpler form of each expression?<br> 30 - 5d - C + 3d

borishaifa [10]

30 - 5d - c + 3d

In this equation there are two numbers which have the letter d with them. These would be like terms.

You have -5d + 3d which equals -2d

The simplified form would be 30 -2d -c

4 0

3 years ago

Read 2 more answers