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Alja [10]
3 years ago
15

How many of the scores from the group that studied in question eight are in one mean absolute deviation of the mean? Which score

s are within one mean absolute deviation of the mean. Studied: 87 100 94 79 92 100 95 83 89 99 100 91 89 95 100 93 96 83. Did not study: 82 72 45 91 58 83 65 87 90 77 73 89.
Mathematics
1 answer:
n200080 [17]3 years ago
4 0

Answer:

93

Step-by-step explanation:

<u><em>Add all of the numbers and divide them by the number of numbers there are.


</em></u><em>Hope this helped  ·ω·</em>

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What is the possible value of b? SOMEONE HELP ME PLEASE
alisha [4.7K]
Solve for b by cross multiplying.

exact form:

b = 9/2

decimal form:

b = 4.5

mixed number form:

b = 4 and 1/2

(p.s. please mark me brainliest, it would help a lot)
6 0
1 year ago
Which division sentence is related to the product of a/3(a/3) when a≠0
Mashcka [7]

Answer:

\frac{a}{3} \frac{.}{.}\frac{3}{a} =1

Step-by-step explanation:

As we seen that the reciprocal of the a/3(a/3) provides the result as a product number that gives the output as 1 .

Also we know that two fractions number gives output 1 if they are the reciprocal or multiplicative inverse from each other.

So,  a/3(a/3

\frac{3a}{3a} \\\\it\ can\ be \ written \ as \\\frac{3}{a} \frac{.}{.}\frac{a}{3}=\ 1

8 0
4 years ago
[HELP PLEASE ALGEBRA] <br><br> Would the answer only be B?
Salsk061 [2.6K]
Hello,

|x+4|=3x-5
if x+4>=0 then
          |x+4|=x+4
          x+4=3x-5
          2x=9
            x=9/2
else
    x+4<0 : x<-4
    |x+4|=-(x+4)
     -(x+4)=3x-5
    -x-4=3x-5
    4x=1
    x=1/4 : to exclude since x<-4
end if


Only one solution : x=9/2
ANSWER B.
7 0
3 years ago
Write the result of (4+9i)(7-4i) in a+bi form​
Serhud [2]

ANSWER

(4 + 9i)(7 - 4i) = 64 + 47i

EXPLANATION

The given complex number expression is:

(4 + 9i)(7 - 4i)

We expand using the distributive property to get;

(4 + 9i)(7 - 4i) = 4(7 - 4i) +  9i(7 - 4i)

(4 + 9i)(7 - 4i) = 28- 16i +  63i - 36 {i}^{2}

Recall that,

{i}^{2}  =  - 1

Our expression now simplifies to:

(4 + 9i)(7 - 4i) = 28 + 47i  + 36

(4 + 9i)(7 - 4i) = 64 + 47i

4 0
4 years ago
Read 2 more answers
Three friends each have a balance of $5,000 on their credit cards with a 25% APR. They've decided that they will not make any ot
egoroff_w [7]

Answer:

Sharon=700per month Cecelia=2000per month Alexander=4000 per month

6 0
2 years ago
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