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Liula [17]
3 years ago
9

Evaluate the expression P (9,1)=_____

Mathematics
2 answers:
Umnica [9.8K]3 years ago
6 0
Solutions 

P(9,1) =  \frac{9!}{8!} = 9 


kvasek [131]3 years ago
3 0
P(9,1)=\dfrac{9!}{8!}=9
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Step 1: –10 + 8x < 6x – 4
Aleks04 [339]

Answer:

    3 > x

Step-by-step explanation:

–2(5 – 4x) < 6x – 4

Step 1: –10 + 8x < 6x – 4

Step 2: –10 < –2x – 4

Step 3: –6 < –2x

Step 4: divide each side by by -2, remembering to flip the inequality

   -6/-2 > -2/-2

    3 > x

6 0
3 years ago
Read 2 more answers
A medical researcher wants to investigate the amount of time it takes for patients' headache pain to be relieved after taking a
Mariana [72]
<span>A medical researcher wants to investigate the amount of time it takes for patients' headache pain to be relieved after taking a new prescription painkiller. She plans to use statistical methods to estimate the mean of the population of relief times. She believes that the population is normally distributed with a standard deviation of 18 minutes. How large a sample should she take to estimate the mean time to within 4 minutes with 97% confidence?
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n = [z*s/E]^2
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n = [2.17*18/4]^2 = 96 when rounded up

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3 0
3 years ago
Ranking correct answer brainliest :)
MrRa [10]

Answer:

115

Step-by-step explanation:

angle DEF is an inscribed angle and arc DF is the arc it intercepts

if you didn't know an inscribed angle is equal to half the measure of the arc it intercepts

Hence angle DEF = 1/2 of arc DF

If arc DF = 230 then angle DEF = half of 230 or 230/2

230/2=115

Hence angle DEF = 115

8 0
3 years ago
How to you solve -4a -8 &lt;= -44 or 6-9a &gt;= -12
dimaraw [331]
<span>The answer to your question is a≥<span><span>9<span> or </span></span>a</span></span>≤<span>2</span>
8 0
3 years ago
Determine the solution for x^2-3x-28 &gt; or equal to 0
omeli [17]
The solutions are:
x = −4,x = 7
Explanation:
X^2−3x−28= 0
We can first factorise this expression by splitting the middle term and then find the solutions:
= x^2−7x+4x−28=0

= x( x−7) + 4( x − 7)=0
=(x+4)(x−7)
Now, we can equate the two factors with zero and find the solutions:
x+4=0,x =−4x−7=0,x=7
8 0
3 years ago
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