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topjm [15]
3 years ago
8

Permutations and Combinations : wake up cereal comes in 2 types, crispy and crunchy. If a researcher has 10 boxes of each, how m

any ways can he select three boxes of each for a quality control test?
Mathematics
1 answer:
pantera1 [17]3 years ago
6 0

Answer:

I'm pretty sure theres 11 ways

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Hayden earns $9.50 per hour as a lifeguard.He earns a bonus of $50.00 for taking a training course.How many hours must he work t
mel-nik [20]

Answer: he must work for at least 26.32 hours

Step-by-step explanation:

Let x represent the number of hours that Hayden works as a life guard.

Hayden earns $9.50 per hour as a lifeguard. This means that the amount that he earns for working for x hours would be

9.5x

He earns a bonus of $50.00 for taking a training course. If he takes this bonus cost, the amount that he would earn for working for x hours is

9.5x + 50

Therefore, the number of hours that he must work to earn at least $300.00 would be

9.5x + 50 ≥ 300

9.5x ≥ 300 - 50

9.5x ≥ 250

x ≥ 250/9.5

x ≥ 26.32

4 0
3 years ago
What's equivlent to 60/1
AnnyKZ [126]

Answer:

60

Step-by-step explanation:

4 0
3 years ago
A person runs 1/7 mile in 1/56 hour.The person's speed is miles per hour.
Oduvanchick [21]
1 minute 8.25 seconds per mile
8 0
3 years ago
Read 2 more answers
What is the coefficient of the term x7y in the expansion of (x + y)^8?
s344n2d4d5 [400]
<span>The coefficient for x^7*y is equal to 8Choose7 which is 8!/7! which is 8, or answer b. Pascal's triangle may be used to capture this as well, or use the exponent as above.</span>
3 0
3 years ago
1+sin^2 x = 2-cos^2 x
Alinara [238K]
1+sin²x=2-cos²x
Remenber:   sin²x+cos²x=1      ⇒sin²x=1-cos²x
 
1+sin²x=1+(1-cos²x)=2-cos² x       (this is true)

3 0
3 years ago
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