Help pls!! 8 1/2 miles in 1/2 hour

URGENT!!! Write the product as a sum or difference.

CaHeK987 [17]

Answer:

3 sin(41t) - 3 sin(t)

Step-by-step explanation:

The general formula to convert the product of the form cos(a)sin(b) into sum is:

cos(a) sin(b) = 0.5 [ sin(a+b) - sin (a-b) ]

The given product is:

6 cos(21t) sin(20t) = 6 [ cos(21t) sin(20t) ]

Comparing the given product with general product mentioned above, we get:

a = 21t and b = 20t

Using these values in the formula we get:

6 cos(21t) sin(20t) = 6 x 0.5 [ sin(21t+20t) - sin(21t-20t)]

= 3 [sin(41t) - sin(t)]

= 3 sin(41t) - 3 sin(t)

Therefore, second option gives the correct answer

4 0

3 years ago

the total weight of 6 pieces of butter and a bag of sugar is 3.8 Ib. if the weight of the bag of sugar is 1.4 Ib, what is the we

baherus [9]

0.4 lbs each.

<h3>Further explanation</h3>

<u>Given: </u>

The total weight of 6 pieces of butter and a bag of sugar is 3.8 Ib.
The weight of the bag of sugar is 1.4 Ib

<u>Question: </u>

What is the weight of each piece of butter?

<u>The Process: </u>

The two steps for obtaining the weight of each piece of butter are as follows:

<u>Step-1:</u> the total amount of butter is the total bag of butter and sugar subtracted by the weight of the bag of sugar.

$\boxed{ \ 3.8 \ lbs - 1.4 \ lbs = 2.4 \ lbs \ }$

<u>Step-2:</u> the total amount of butter divided by the number of pieces of butter is the the weight of each piece of butter.

$\boxed{ \ 2.4 \ lbs \div 6 \ pieces = \boxed{ \ 0.4 \ lbs/piece \ } \ }$

Let's also consider the following quick steps.

<u>Quick steps: </u>

$\boxed{ \ \frac{(3.8 - 1.4) \ lbs}{6 \ pieces} = \boxed{ \ 0.4 \ lbs/piece \ } \ }$

Therefore, the weight of each piece of butter is 0.4 lbs.

<h3>Learn more </h3>

What is the cost of the toy car? brainly.com/question/5282516
How much netting did Mrs.Nguyen use per goal? brainly.com/question/13174287
How much punch is in each bowl? brainly.com/question/1878521

Keyword: the total weight, 6 pieces of butter, a bag of sugar is 3.8 Ib, if the weight of the bag of sugar is 1.4 Ib, each piece, subtracted, divide

5 0

3 years ago

Read 2 more answers

Pls answer..<br>5 men earns Rs. 7500 in 3 days, gind the amount that earn by 3 men by 4 days,

Elena-2011 [213]

Answer:

3 men = Rs. 6000 = 4 days

Step-by-step explanation:

→ Find how much 1 man make in 3 days

1 man = Rs. 1500 = 3 days

→ Find how much he makes in 1 day

1 man = Rs. 500 = 1 day

→ Find how much one man can make in 4 days

1 man = Rs. 2000 = 4 days

→ Find how much 3 men will make

3 men = Rs. 6000 = 4 days

6 0

2 years ago

What are the domain and range of the function? F(x)=-3/5x^3

Ksivusya [100]

Answer:

A) Domain: All real numbers, excluding zero (-∞, 0) ∪ (0, ∞)

Range: All real numbers, excluding zero (-∞, 0) ∪ (0, ∞)

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers

What is the actual length and width of the living room? Show your work.

alina1380 [7]

20 is the area
And 18 is the perimeter

6 0

3 years ago