3 years ago

How do I solve this inequality?

Mathematics

1 answer:

Zolol [24]3 years ago

3 0

Answer:

Hey there is actually a calculator, A universal calculator called omni calculator, I recommend you use that instead of brainly, Its very simple to use

Step-by-step explanation:

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Which of the following is true? Tangent is positive in Quadrant I. Sine is negative in Quadrant II. Cosine is positive in Quadra

DiKsa [7]

A) Tangent is positive in Quadrant I.

Since sine and cosine are both positive in Quadrant I and tangent is the ratio of sine to cosine, tangent is positive in Quadrant I

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3 years ago

Identify the solutions to the quadratic equation.<br> Check all that apply.<br> x2 + 4x - 21 = 0

Vika [28.1K]

Answer:

C and D

Step-by-step explanation:

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2 years ago

Quadrilateral STWR is inscribed inside a circle as shown below. Write a proof showing that angles T and R are supplementary.

AlladinOne [14]

Observe the given figure.

Here, angle T and R are the inscribed angles.

And sum of inscribed angles is half of measure of intercepted arcs.

Since, the measure of intercepted arcs is 360 degrees.

Therefore, $\angle T + \angle R = \frac{1}{2} \times 360 ^{\circ}$

$\angle T + \angle R = 180 ^{\circ}$

Hence, the sum of the two angles is 180 degrees.

Therefore, these are the supplementary angles.

Therefore, angle T and angle R are supplementary angles.

Hence, proved.

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3 years ago

If a gold bar has a length of 17.78 cm, a width of 9.208 cm, a height of 4.445 cm, and the density of gold is 19.3 g/cm^3, what

kozerog [31]

Answer:

17.78×9.208×4.445=727.7275768

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3 years ago