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Softa [21]
3 years ago
13

What is the standard deviation of the following data? If necessary, round your answer to two decimal places. 9, 10, 10, 8, 7, 11

, 12, 9
Mathematics
1 answer:
Ierofanga [76]3 years ago
8 0
The standard deviation is approximately 9.5
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Can someone please help will mark brainlist
Virty [35]

Answer:

You can complete the mission 5 times before you earn less than 400 points.

Explanation:

100(0.8)^n^-^1 < 400

(0.8)^n^-^1 < 0.4

log 0.8^n < log 0.32

n > 5.1

8 0
2 years ago
Fill in the table and then round to the given place<br> 4.3<br> hundredths<br> tenths<br> ones
NISA [10]
4.3
4=ones
.3= hundredths
0=tenths

Hope I helped:P 
  
6 0
3 years ago
Please help! ! Timed !******
lord [1]

Answer:

(fоg)(x) =  x

Step-by-step explanation:

f(x) = (x-1)/3

g(x)=3x+1

(fоg)(x) = f(g(x)) = ((3x+1)-1) / 3 = 3x / 3 = x

3 0
3 years ago
Solve the problem below by finding a common denominator 1/3 - 1/5
sweet [91]

Answer:

2/15

Step-by-step explanation:

1/3-1/5

5/15-3/15

= 2/15

3 0
2 years ago
Read 2 more answers
How much of a spice that is 30% salt should be added to 175 ounces of a spice that is 65% salt in order to make a spice that is
klasskru [66]
\bf \begin{array}{lccclll}&#10;&amount&concentration&&#10;\begin{array}{llll}&#10;concentrated\\&#10;amount&#10;\end{array}\\&#10;&-----&-------&-------\\&#10;\textit{30\% spice}&x&0.30&0.30x\\&#10;\textit{65\% spice}&175&0.65&(175)(0.65)\\&#10;-----&-----&-------&-------\\&#10;mixture&x+175&0.50&(x+175)(0.50)&#10;\end{array}

so.. as you can see, we use the decimal notation for the percentages... 65% is just 65/100 and 50% is just 50/100 and so on

so.. whatever the salted amounts are, we know they'll add up to (x+175)(0.50)

thus  (0.30x) + (175)(0.65) = (x+175)(0.50)

solve for "x"
5 0
3 years ago
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