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3 years ago

Michelle made 26 more sales calls last month than Allen. Together, they made 120 calls. How many calls were made by Michelle?

Mathematics

1 answer:

algol133 years ago

6 0

Answer

Step-by-step explanation:

you need to subtract the 26 from 120 to get 94 divide that by 2 to get 47 so thats haw many calls they each made then add on the 26 to find her amount to get 73

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givi [52]

Answer:

3) C.

4) B.

5) C.

Step-by-step explanation:

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3 years ago

A manager at a local company asked his employees how many times they had given blood in the last year. The results of the survey

Lubov Fominskaja [6]

Answer:

$Var(X) = E(X^2) -[E(X)]^2 = 4.97 -(1.61)^2 =2.3779$

And the deviation would be:

$Sd(X) =\sqrt{2.3779}= 1.542 \approx 1.54$

Step-by-step explanation:

For this case we have the following distribution given:

X 0 1 2 3 4 5 6

P(X) 0.3 0.25 0.2 0.12 0.07 0.04 0.02

For this case we need to find first the expected value given by:

$E(X) = \sum_{i=1}^n X_i P(X_I)$

And replacing we got:

$E(X)= 0*0.3 +1*0.25 +2*0.2 +3*0.12 +4*0.07+ 5*0.04 +6*0.02=1.61$

Now we can find the second moment given by:

$E(X^2) =\sum_{i=1}^n X^2_i P(X_i)$

And replacing we got:

$E(X^2)= 0^2*0.3 +1^2*0.25 +2^2*0.2 +3^2*0.12 +4^2*0.07+ 5^2*0.04 +6^2*0.02=4.97$

And the variance would be given by:

$Var(X) = E(X^2) -[E(X)]^2 = 4.97 -(1.61)^2 =2.3779$

And the deviation would be:

$Sd(X) =\sqrt{2.3779}= 1.542 \approx 1.54$

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3 years ago

Point B lies on Ac between A and C if AB=3 and AC=14 find BC Please help

vovangra [49]

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3 years ago

What is the value of (-14⁰)-2 a -1/196 b 1/196 c 0 d 1

natta225 [31]

Answer:

It is -1/196 for those who want the quick answer and not the one below me calling the person dumb which I reported BTW because it is unacceptable.

Step-by-step explanation:

I know i dont work for Brainly but i apologize for the person who was called dumb.

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3 years ago

The elevation of lake sam rayburn is 164 above mean sea level during the summer if it does not rain the elevation of the lake de

andrew-mc [135]

Answer:

I guess that you want to model the elevation of Lake Sam Rayburn.

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If it does not rain, the elevation of the lake decreases by 0.5ft each week.

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L(w) = 165ft - 0.5ft*w

Where w is the number of weeks without rain, if we have 0 weeks without rain, then the level of the lake remains constant at 165ft above sea level,

L(0) = 165ft - 0.

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3 years ago