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2 years ago

Plz help !! Needed to graduate

Mathematics

1 answer:

Eddi Din [679]2 years ago

8 0

$x {}^{2} - x - \frac{5}{2} = 0$
(1±√(1-4(1)(-5/2))/(2)

(1±√1+10)/(2)

$\frac{1 + \sqrt{11} }{2} \\ \frac{1 - \sqrt{11} }{2}$

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-0.125 as a fraction

kaheart [24]

Answer:

-1/8

Step-by-step explanation.

125 x 8 = 1000

.125 x 8 = 1

-.125 x 8 = -1

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2 years ago

PLS HELPP! :)<br><br>What is the radius with a circumference of 122 in?

Mumz [18]

Answer:

this is the answer r≈19.42in

because you radius with a circumference of 122in

and that's your answer

Step-by-step explanation:

hope it works

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2 years ago

Three angles of an irregular octagon are 100 degrees, 120 degrees, and 140 degrees. The remaining angles are congruent. Find the

STatiana [176]

Answer:

144°

Step-by-step explanation:

The sum of the interior angles of a polygon is

sum = 180° × (n - 2) ← n is the number of sides

Here n = 8 ( octagon ), hence

sum = 180° × 6 = 1080°

let the measure of 1 congruent angle be x

Then sum the 8 angles and equate to 1080

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7 0

2 years ago

7 times a number is 8 less than the square of that number. Find the negative solution.

charle [14.2K]

Answer:

-1

Step-by-step explanation:

The required relation is ...

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