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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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SO anyways :))))

artcher [175]

Answer:

1 / 8², B

Step-by-step explanation:

8 / 8³

8³ = 8*8*8

So, the equation can also be written as:

8 / 8*8*8

divide the numerator and denominator by 8.

1 / 8*8

This is equal to:

1 / 8²

The answer is B.

7 0

2 years ago

Please have an explanation with it

Nataly_w [17]

Hello from MrBillDoesMath!

Answer:

The protein/calories ratios are equivalent

Discussion:

For the first column

Protein/calories = 24/96 = 1/4

For the second column

Protein/calories = 28/112 = 1/4

So the protein/calories ratios are equivalent

Thank you,

MrB

7 0

2 years ago

To avoid an additional charge, the sum of the length, 1, width, w, and depth, d, of a piece of luggage to be checked on a

ololo11 [35]

The answer is B. l+w+d cannot be more than 61 inches so that sum must be less than 61 inches

5 0

3 years ago

Read 2 more answers

A fire department in a rural county reports that its response time to fires is approximatelyNormally distributed with a mean of

____ [38]

Answer:

Option C) 0.25

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 22 minutes

Standard Deviation, σ = 11.9 minutes

We are given that the distribution of response time is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

P(response times is over 30 minutes)

P(x > 30)

$P( x > 30) = P( z > \displaystyle\frac{30 - 22}{11.9}) = P(z > 0.6722)$

$= 1 - P(z \leq 0.6722)$

Calculation the value from standard normal z table, we have,

$P(x > 30) = 1 - 0.749= 0.251 = 25.1\%$

Thus, the correct answer is

Option C) 0.25

3 0

2 years ago

Read 2 more answers

Helppp meeee pleaseeeee

lutik1710 [3]

I hate math its so hard for no reason

6 0

2 years ago

Read 2 more answers