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Serga [27]
3 years ago
9

Which is the graph of x^2/9 + y^2/4 = 1

Mathematics
1 answer:
ladessa [460]3 years ago
4 0

Answer:

Step-by-step explanation:

it is an ellipse.

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in triangle PQR the measure of angle R=90, QP=73, RQ=55, and PR=48. what is the value of the sine of angle P to the nearest Hund
alexandr402 [8]

Answer:

P ≈ 48.89°(nearest hundredth)

Step-by-step explanation:

The triangle PQR forms a right angle triangle since angle R is 90°. The triangle has an hypotenuse , adjacent and opposite side.

Using the SOHCAHTOA principle one can find the sine ratio of angle P. Let us designate where each side represent.

opposite side(QR) = 55

adjacent side(PR) = 48

hypotenuse(PQ) = 73

sin P = opposite/hypotenuse

sin P = 55/73

P = sin⁻¹ 55/73

P = sin⁻¹ 0.75342465753

P = 48.8879095605

P ≈ 48.89°(nearest hundredth)

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Step-by-step explanation:

  1. The numbers to the <u>right</u> of 0 are <u>positive</u>. The numbers to the <u>left</u> of 0 are <u>negative</u><u>.</u> 0 is neither positive nor negative.
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Why do some metals react with only steam?​
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Answer:

Metals which react with steam form the solid metal oxide and hydrogen gas.

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The apparatus used to react a metal with steam and collect the gas produced is shown below.

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