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ss7ja [257]
3 years ago
12

The quotient of two numbers is negative. It must be true that _____. a neither number is negative b one of the numbers is negati

ve c both of the numbers are negative
Mathematics
2 answers:
OverLord2011 [107]3 years ago
7 0
The answer is B. One of the numbers is negative.
vivado [14]3 years ago
3 0
The answer is B.) one of the numbers is negative. 

So if you take the example...
-3 x -7 = 21
then we know that they equal a positive. 
21 ÷ -3 = -7 

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Prod
Lapatulllka [165]

Answer:

Step-by-step explanation:

If n is even then the product  is positive.

If n is odd - the product is negative.

4 0
3 years ago
Which expression is equivalent to 4x+3x+4-2x
kifflom [539]

Answer:

5x+4

Step-by-step explanation:

4x+3x+4-2x

Combine like terms

4x+3x-2x      +4

5x          +4

7 0
2 years ago
B(t)=4*e^0.8t, How many hours will it take for the population to grow to 400?
Mariulka [41]
Given:  "<span>B(t)=4*e^0.8t, How many hours will it take for the population to grow to 400?"   Set B(t) = 400.  Then:

400=4*e^(0.8t), or

100 = e^(0.8t)

Take the natural log of both sides, obtaining
                                       ln 100
ln 100 = 0.8t.  Then t = ----------- = 5.76 hours.
                                        0.8</span>
7 0
3 years ago
7) what is the slope and
alexira [117]

Answer:

is questions no 6 is the correct answer

7 0
2 years ago
A sample of 5 strings of thread is randomly selected and the following thicknesses are measured in millimeters. Give a point est
liq [111]

Answer:

s^2 = \frac{(1.48-1.502)^2 +(1.45-1.502)^2 +(1.54-1.502)^2 +(1.52-1.502)^2 +(1.52-1.502)^2}{5-1} =0.00132

And for the deviation we have:

s= \sqrt{0.00132}=0.0363

And that value represent the best estimator for the population deviation since:

E(s) =\sigma

Step-by-step explanation:

For this case we have the following data:

1.48,1.45,1.54,1.52,1.52

The first step for this cae is find the sample mean with the following formula:

\bar X =\frac{\sum_{i=1}^n X_}{n}

And replacing we got:

\bar X= \frac{1.48+1.45+1.54+1.52+1.52}{5} = 1.502

And now we can calculate the sample variance with the following formula:

s^2 =\frac{\sum_{i=1}^n (X_i -\bar X)^2}{n-1}

And replacing we got:

s^2 = \frac{(1.48-1.502)^2 +(1.45-1.502)^2 +(1.54-1.502)^2 +(1.52-1.502)^2 +(1.52-1.502)^2}{5-1} =0.00132

And for the deviation we have:

s= \sqrt{0.00132}=0.0363

And that value represent the best estimator for the population deviation since:

E(s) =\sigma

4 0
3 years ago
Read 2 more answers
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