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mojhsa [17]
4 years ago
5

Simplify 3 square root of 2 - 3 square root of 18

Mathematics
1 answer:
djyliett [7]4 years ago
5 0

Answer:

-6 √(2) = -8.48528137424

Step-by-step explanation:

:))

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For which of the following does the line pass through the origin?
g100num [7]
C because the y intercept is 0
5 0
4 years ago
A patient is given a 100-milligram dosage of a drug that decays exponentially at a rate of 11% per hour. The doctor wants to kno
I am Lyosha [343]

Answer:

This is an example of exponential decay (somewhat similar to half-life).

If it decays at 11% per hour we can calculate its half-life by this formula:

half life = [ time • ln (2) ] ÷ ln (beginning amount ÷ ending amount)

where "ln" means natural log

half life =[ 1 hour * .69315] / ln (100 / 89)

half life =[.69315] / ln (1.1235955056)

half life =[.69315] / 0.11653381624

half life = 5.9481 hours


We need "lambda" "λ" (the decay constant) which equals

λ  = ln(2) / half-life = .693147 / 5.9481 = 0.1165325062


Now we need a formula for the time required:

time = ln (Nt ÷ N0) ÷ -λ where No = beginning amount (100 milligrams) Nt = ending amount (15 milligrams)

time = ln (15 ÷ 100) ÷ -0.1165325062

time = ln (.15)  /  -0.1165325062

time = -1.8971199849 / -0.1165325062


time = 16.2797492885 hours

Source: https://www.1728.org/halflif2.htm



Step-by-step explanation:


4 0
3 years ago
About 42% of a paint mix is whit. A painter orders 18 gallons of the paint mix. How much of it is white?
evablogger [386]
Answer 7.56

Explanation: looked it up
6 0
3 years ago
A gambler is trying to determine whether or not to make a bet. If he bets and wins, he will profit $2000. If he bets and loses,
PIT_PIT [208]

Answer:

The gambler's expected value if he makes the bet is $45.

Step-by-step explanation:

Expected value:

15% probability of a profit of $2000.

100 - 15 = 85% probability of having to pay $300, that is, a loss of $300.

The expected value is each outcome multiplied by it's probability, so:

E = 0.15*2000 - 0.85*300 = 45

The gambler's expected value if he makes the bet is $45.

4 0
3 years ago
Can someone please help me?
algol [13]

Answer:

<u>Question 1:</u>  The answer is<em> "He could ask each person in his class who is the tallest person in the class."</em>

<u>Question 2:</u>  The mode is <em>56.</em>

Step-by-step explanation:

Explanation 1:  A statistical question is a question that can be answered by <em>collecting data that varies</em>. For example,<em> “How old am I?"</em> is <em>not </em>a statistical question, but <em>“How old are the students in my school?” </em>is a statistical question.  Therefore, when we look at the options, <em>the second option is the best.</em>

Explanation 2:  To find the mode we have to find <em>which number is most frequent</em> through out the set.  When we look at the numbers, there are 3 numbers that have <em>56</em>.  Therefore, <em>56 is the mode. </em>

5 0
3 years ago
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