How to do do this question I don't know how to do

Answers

Answer 1

Answer: Hello,

Let denote
h the number of men in the concert hall (before leaving)
f the number of women in the concert hall (before leaving)

1/5 h quit =60/2
15/100 f =60/2

h=30*5=150
f=30*100/15=200

Tey were 150+200 = 350 humans in the hall.
(why h : homme, f:femme you may call m and w)

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Multiple 8 by 10 5. How many zeros are before the decimal point in the product

Answers

your answer would 84.5

multiply the problem and then move your decimal over 1 to the left assuming it was at the end of your answer on the right your answer would be 840. move 1x to the left then becomes 84.0

Darlene purchases 20,000 worth of stock on her brokers advice and pays her broker a 1.5% broker fee darlene purchases 20,000 worth of stock on your brokers advice and pays her broker a 1.5% broker freeshe sells her stock when it increases to $28,600.02 years later and uses a discount broker who charges $21 per trade compute Darlenes net proceeds after the broker fees are taken out

Answers

Answer:

Darlene's net proceeds after the broker fees are taken out is $8,279.

Step-by-step explanation:

From the question, the following can be obtained:

Basic cost of purchase of the stock = $20,000

Broker fee related to purchase = Basic cost of purchase of the stock * 1.5% = $20,000 * 1.5% = 300

Total cost of purchase of the stock = Basic cost of purchase of the stock + Broker fee related to purchase = $20,000 + 300 = $20,300

Selling price = $28,600

Broker fees related sales = 21

The net proceed can therefore be calculated as follows:

Net proceeds = Selling price - Broker fees related sales - Total cost of purchase of the stock = $28,600 - $21 - $20,300 = $8,279

Therefore, Darlene's net proceeds after the broker fees are taken out is $8,279.

Find the arc of the semicircle(diameter is 12)

Answers

Answer:

$18.849$

Step-by-step explanation:

$(180)/(360) * 2\pi \: * 6 \n (1)/(2) * 2 * \pi * 6 \n \pi * 6 \n = 18.849$

Verify the identity. Justify each step. tan (thetA) + cot (thetA) = 1 / sin (thetA) cos (thetA)

Answers

The verification of the given identity i.e. an (thetA) + cot (thetA) = 1 / sin (thetA) cos (thetA) so it should be explained below.

Verification of the identity:

Since

theta = t

tan t + cot t = 1/ sin t cos t

Now

sin t / cos t + cos t / sin t = 1 / sin t cos t

So,

( sin² t + cos² t ) / sin t cos t = 1/ sin t cos t

And, finally

1/ sin t cos t = 1 / sin t cos t

Learn more about tan here: brainly.com/question/18437853

theta = t
tan t + cot t = 1/ sin t cos t
sin t / cos t + cos t / sin t = 1 / sin t cos t
( sin² t + cos² t ) / sin t cos t = 1/ sin t cos t
1/ sin t cos t = 1 / sin t cos t

A mathematical formula designed to predict population fluctuations in a community could be called a(an)

Answers

It would be called an ecological model.

Prime factorization of 147

Answers

3, 7^2 the two is supposed to be an exponent.

Answer B: 3 x 7 x7 or 3 x 7^7

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