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mezya [45]
4 years ago
8

PLEASE answer this NOW

Mathematics
2 answers:
Contact [7]4 years ago
8 0

Below zero that means negative

So answer is -21

Lostsunrise [7]4 years ago
6 0

It has to be -21 because it below zero

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Line l passes through the origin and point (3,4).What is the slope of a line parallel to line l
allochka39001 [22]
\bf \begin{array}{lllll}
&x_1&y_1&x_2&y_2\\
%   (a,b)
&({{ 0}}\quad ,&{{ 0}})\quad 
%   (c,d)
&({{ 3}}\quad ,&{{ 4}})\\
&origin
\end{array}
\\\\\\
% slope  = m
slope = {{ m}}= \cfrac{rise}{run} \implies 
\cfrac{{{ y_2}}-{{ y_1}}}{{{ x_2}}-{{ x_1}}}\implies \cfrac{4-0}{3-0}\implies \cfrac{4}{3}

so, that's the slope of a line passing through the origin and 3,4, and any line parallel to it, will have the same exact slope.
5 0
4 years ago
The director of admissions at Kinzua University in Nova Scotia estimated the distribution of student admissions for the fall sem
wariber [46]

Answer:

In order to calculate the expected value we can use the following formula:  

E(X)=\sum_{i=1}^n X_i P(X_i)  

And if we use the values obtained we got:  

E(X)=(1060*0.5) +(1400*0.1) +(1620*0.4)=1318  

Step-by-step explanation:

Let X the random variable that represent the number of admisions at the universit, and we have this probability distribution given:

X        1060   1400    1620

P(X)     0.5      0.1        0.4

In statistics and probability analysis, the expected value "is calculated by multiplying each of the possible outcomes by the likelihood each outcome will occur and then summing all of those values".

The variance of a random variable Var(X) is the expected value of the squared deviation from the mean of X, E(X).

And the standard deviation of a random variable X is just the square root of the variance.  

In order to calculate the expected value we can use the following formula:  

E(X)=\sum_{i=1}^n X_i P(X_i)  

And if we use the values obtained we got:  

E(X)=(1060*0.5) +(1400*0.1) +(1620*0.4)=1318  

3 0
3 years ago
-1⁄4 a − 4 = 4 what is a
Vaselesa [24]

Answer:

add 4 so -1/2a=8

mult both sides by 2 so

-1a=16

divide 16 and -1

a = -16

Step-by-step explanation:

4 0
3 years ago
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Terry bought a sweater for $24 before tax. He had a coupon for 14 off. The sales tax rate was 0.06. How much did Terry pay for t
yawa3891 [41]

Answer:

$11.44

Step-by-step explanation:

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Can someone help me understand this ​
Gnoma [55]

Answer:

The answer for the question is E.

8 0
3 years ago
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