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3 years ago

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Mathematics

2 answers:

vampirchik [111]3 years ago

5 0

Answer:i got 2.5 with the exes

but i got mean=6 with doing 4,5,6 and 9 and the median of those is 5.5 which is an answer choice on the paper

im pretty sure its 2.5 because that is with the data given but i dont see it as an answer choice thats why i told you the other answer

Step-by-step explanation:to get the mean you get the sum of the numbers divided by the count the sum in this particular example was 10 and the count 4 because of the rows so 10/4=2.5

Licemer1 [7]3 years ago

3 0

Answer:

3+4+2+1 = 10

----

1.6

Step-by-step explanation:

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The measure of angle θ is 600°. . The point (x, y) corresponding to θ on the unit circle is? (___,___). the options for inside p

Ipatiy [6.2K]

Answer: C: -1/2 (x-coordinate) and A: - ∛3 / 2 (y-coordinate)

Explanation:

1) In the unit circle, the x and y - coordinates are the cosine and sine ratios, respectivle.

2) 600° corresponds to 600 - 360° = 240°.

3) 180° < 240° < 270° ⇒ the point is in the third quadrant.

Third quadrant ⇒ both x and y coordinates are negative, so D. cannot be a solution.

4) You can work with the supplementary angle to use notable angles:

240° - 180° = 60°

The sine and cosine of 60° are known:

sin 60° = ∛3 / 2, and cos 60° = 1/2.

5) In the unit circle the x-coordinate is the cosine of the angle, and the y-coordinate is the sine of the angle:

So, x = - 1/2 and y = - ∛3/2.

6) You can verify in a calculator; sin 240° = -0.866... and cos 240° = - 0.5.

Therefore, the answer is: A: - ∛3 / 2, for the y-coordinate, and C: - 1/2 for the x-coordinate.

6 0

4 years ago

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What is a rational number equivalent to —— 3.12

Ludmilka [50]

Answer:

$\frac{78}{25}$

Step-by-step explanation:

A rational number has the form

$\frac{a}{b}$ ← where a and b are integers

3.12 = $\frac{312}{100}$ ← divide numerator/denominator by 4, thus

3.12 = $\frac{78}{25}$ ← in simplest form

4 0

4 years ago

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Anastaziya [24]

Answer:

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Step-by-step explanation:

If x and y are proportional, then it will create a straight (linear) line

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3 years ago

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Answer:

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3 years ago

F ∠A is 95° and ∠B is 105°, what is ∠C? A) 75° B) 85° C) 95° D) 105°

Jobisdone [24]

The question is missing important data. The quadrilateral having vertices A, B, C and D is a cyclic quadrilateral.

Answer:

B) 85°

Step-by-step explanation:

Given:

A cyclic quadrilateral with ∠A is 95° and ∠B is 105°.

For a cyclic quadrilateral, the sum of the opposite interior angles is equal to 180°

Therefore, sum of angles A and C is 180°.

$\angle A + \angle C=180\°\\95\°+\angle C=180\°\\\angle C=180-95\\\angle C =85\°$

Therefore, the correct option is option B) 85°

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4 years ago

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