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Pepsi [2]
3 years ago
5

Answer to this question ?

Mathematics
1 answer:
seraphim [82]3 years ago
3 0

Answer:

(x - 10)(x - 3)

Step-by-step explanation:

You have to think of numbers that multiply up to 30 and add up to 13. So you eliminate the numbers down to 10 and 3, because you can add up to 13 and multiply to 30. Now you have to find how it adds up to <em>negative </em>13 and multiply it to <em>postive </em>30. 2 negatives make a positive when multiplying, and 2 negatives added together make another negative, so your roots are 10 and 3. Put that into factored form and you have (x - 10)(x - 3).

Alternatively you can either graph to find its zeros or guess-and-check.

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A central angle theta in a circle of radius 7 m is subtended by an arc of length 8 m. Find the measure of theta in degrees. (Rou
gogolik [260]

Answer: In degrees , The measure of \theta=65.5^{\circ}

In radians , the measure of  \theta =\dfrac{8}{7}\text{ radians}.

Step-by-step explanation:

We know that the formula for length of arc is given by :-

l=\theta r

, where \theta = Central angle subtended by arc.

r= radius of the circle.

As per given , we have

Radius of circle : r=7 m

Length of arc : l=  8 m

Substitute these values in the above formula , we get

8=\theta (7)\\\\\Rightarrow\ \theta =\dfrac{8}{7}\text{ radians}

Hence, the measure of \theta =\dfrac{8}{7}\text{ radians}.

To convert it into degrees we multiply it with \dfrac{180^{\circ}}{\pi}

The measure of \theta =\dfrac{8}{7}\times\dfrac{180^{\circ}}{\pi}

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8 0
3 years ago
The sum of a positive number and 56 times its reciprocal is equal to its cube. What is the number?
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or

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x² = -7 would mean that x is an imaginary number. so, that is not a valid solution here.

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Step-by-step explanation:

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Step-by-step explanation:

hi.

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