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2 years ago

Pls help only those who know for certain answer pls

Mathematics

1 answer:

castortr0y [4]2 years ago

3 0

Answer:

x = 111

Step-by-step explanation:

All angles in a triangle add up to 180°. Therfore, you can solve by adding up the values of the two known angles (37 + 32 = 69) and subtract this value from 180 to get the missing angle (180 - 69 = 111).

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Step-by-step explanation:

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The length of a rectangle is six times it’s width. If the area of the rectangle is 150ft^2, find its perimeter.

sineoko [7]

Answer:

Perimeter = 70ft

Step-by-step explanation:

Area of a rectangle is:

area = (length * width)

150 = a * b

a = 6b

a = length

b = width

then:

150 = 6b*b

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then:

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3 years ago

If a polynomial function f(x) has roots 6 and square root of 5, what must also be a root of f(x)?

ivolga24 [154]

Answer:

- $\sqrt{5}$

Step-by-step explanation:

A root with square root or under root is only obtained when we take the square root of both sides. Remember that when we take a square root, there are two possible answers:

One answer with positive square root
One answer with negative square root

For example, for the equation:

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If we take the square root of both sides, the answers will be:

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Only getting one solution with square root is not possible. Solutions with square root always occur in pairs.

For given case, the roots are 6 and $\sqrt{5}$ . Therefore, the 3rd root of the polynomial function f(x) had to be - $\sqrt{5}$

It seems you made error while writing option B, it should be - square root of 5.

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3 years ago