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aniked [119]
3 years ago
6

You are hiking with three friends. You pass a group of six hikers going the other way. Each person in one group greets each pers

on in the other group. How many greetings are there?
18

24

36

12
Mathematics
1 answer:
cestrela7 [59]3 years ago
6 0
12 I would think maybe
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The drama club collected $160 from ticket sales for the spring play. They need to collect at least $400 to pay for new lighting
valentina_108 [34]
We assume all money is spent on new lighting. Since they currently have $160 and need $400 we can subtract what they currently have from what they need.

$400-$160 = $240

Since we know the price of the ticket and now know they need $240 we can divide our $240 with the price of each ticket ($3)

$240/$3 = 80

So the drama club has to sell 80 more tickets in order to afford new lighting
6 0
3 years ago
(<br> x<br> −<br> 3<br> )<br> (<br> x<br> −<br> 1<br> )<br> (x−3)(x−1)
galina1969 [7]

Answer:

x² - 4x + 3

Step-by-step explanation:

When multiplying binomials (two terms in an expression), use FOIL. It stands for the first, outside, inside, and last terms in each bracket.

(x−3)(x−1)           Expand with FOIL

= x² - x - 3x + 3      Collect like terms

= x² - 4x + 3

7 0
3 years ago
All of the following are examples of essay types that colleges typically aska student to write except O A. essays about you. B.
Nataliya [291]

Answer: C. essays about work experience

Step-by-step explanation: I would chose C because when you apply for a job you are asked to write and an essay on your work experience. But in college, you are no applying for a job.

7 0
3 years ago
You want to create a 99% confidence interval with a margin of error of .5. Assuming the population standard deviation is equal t
miss Akunina [59]

Answer:

Sample size minimum is 60

Step-by-step explanation:

given that you want to create a 99% confidence interval with a margin of error of .5.

The population  standard deviation is equal to 1.5

i.e. \sigma = 0.5

Confidence level = 99%

Since population std deviation is known, we can use Z critical value for finding margin of error

Z critical value for 99% = 2.58

Margin of error = 2.58*\frac{1.5}{\sqrt{n} }

Equate this to 0.5 and solve for n

2.58*\frac{1.5}{\sqrt{n} }=0.5\\\sqrt{n} =7.74\\n =59.90\\n=60

8 0
3 years ago
Justine answered 69 questions correctly on a 150 question test
MArishka [77]

Answer:

I am assuming you are asking for what percent correct she got. She got 46% correct.

Step-by-step explanation:

You divide the answers correct by the total questions. She got 69 out of 150, so dividing that is .46

To turn a decimal into a percentage, just move the decimal two places to the right, thus getting 46 %

If I assumed what you were asking incorrectly, let me know and I'll be happy to help!

4 0
3 years ago
Read 2 more answers
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