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2 years ago

Choose a justification for each step in the derivation of the sine difference identity.

Mathematics

2 answers:

Natali [406]2 years ago

8 0

Answer:

Step 1:

✔ Cofunction identity

Step 5:

✔ Sine difference identity

Step 6:

✔ Cofunction Identity

Step 7:

✔ Cosine function is even, sine function is odd.

Step-by-step explanation:

Aleks04 [339]2 years ago

8 0

Answer:

Step 1: Cofunction identity

Step 5: Cosine difference identity

Step 6: Cofunction identity

Step 7: Cosine function is even, sine function is odd

Step-by-step explanation:

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There are 8 circles and 20 triangles. What is the simplest ratio of circles to total shapes?

liubo4ka [24]

Answer:

8:20

Step-by-step explanation:

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3 years ago

What is a multiple? explain

nikitadnepr [17]

Answer:

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Step-by-step explanation:

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2 years ago

Mr. Schordine wants to fill up enough helium balloons to allow him to fly through the skies. He weighs 84 kilograms. He knows th

Cerrena [4.2K]

Answer:

There is needed around 311 balloons to fulfill Mr. Schordine’s dream of flight.

Step-by-step explanation:

First, we need to calculate the volume of each balloon by considering the balloons as a sphere:

$V = \frac{4}{3}\pi r^{3}$

Where:

r: is the radius = 0.4 meters

$V = \frac{4}{3}\pi r^{3} = \frac{4}{3}\pi (0.4 m)^{3} = 0.27 m^{3}$

Knowing that 1 m³ of helium is able to lift about 1 kg, that Mr. Schordine weights 84 kg, and that each ballon has 0.27 m³ of helium, the number of balloons needed are:

$N = \frac{1 m^{3}}{1 kg}*84 kg*\frac{1 balloon}{0.27 m^{3}} = 311.1 \: balloon$

Therefore, there is needed around 311 balloons to fulfill Mr. Schordine’s dream of flight.

I hope it helps you!

6 0

2 years ago

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kati45 [8]

P= $48c + $17.76 hope this helps

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2 years ago

#7: Five containers, each weighing the same amount, were placed on a 30-pound

Ede4ka [16]

Answer:

Option (B)

Step-by-step explanation:

Let the weight of one container = x pounds

Therefore, weight of 5 containers = 5x pounds

Weight of the platform = 30 pounds

Total weight of the platform and containers = (5x + 30) pounds

If the maximum weight that can be lifted by the cable = 780 pounds

Inequality representing this situation will be,

(5x + 30) < 780

5x < 780 - 30

5x < 750

x < 150

Therefore, Option (B) is the answer.

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3 years ago