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allochka39001 [22]

3 years ago

6

The freezing point of a certain liquid isn't -7 degrees. Another liquid freezes at -12 degrees. What is the difference between t

he absolute values of each freezing point?

1 answer:

Degger [83]3 years ago

7 0

The answer is 12-7 which is 5

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Is (1,3) (2,4) and (-2,1) (-3,0) a parallel line?

GREYUIT [131]

Answer:

yes

Step-by-step explanation:

i graphed it buy i dont know how to screenshot on my computer so i cant post it.

5 0

3 years ago

Suppose you have a random variable that is uniformly distributed between 1 and 29. what is the expected value for this random va

Kryger [21]

Assuming the distribution is continuous, you have

$\mathbb E(X)=\displaystyle\int_1^{29}\frac x{29-1}\,\mathrm dx=\dfrac1{28}\int_1^{29}x\,\mathrm dx=15$

If instead the distribution is discrete, the value will depend on how the interval of number between 1 and 29 are chosen - are they integers? evenly spaced rationals? etc

3 0

3 years ago

You purchase pair of pants for $34.60 and a shirt for $12.30. If you need to pay 8% sales tax, what is the final price?

11111nata11111 [884]

Answer:

50.65

Step-by-step explanation:

34.60+12.30=46.90

8%=.08

46.90*.08=3.752

add tax to the total-

46.90+ 3.75= 50.65

4 0

3 years ago

Find the equation of the line through ( - 10, - 8) that is perpendicular to the line through (10,6), (5,5).

Furkat [3]

Answer:

y=-5x-58

Step-by-step explanation:

The equation of a line in slope-intercept form is y=mx+b where m is the slope and b is the y-intercept.

Perpendicular lines have opposite reciprocal slopes.

Anyways we need to find the slope of the line going through (10,6) and (5,5).

To find the slope, we are going to line up the points vertically and subtract vertically, then put 2nd difference over 1st difference. Like so:

( 10 , 6)

- ( 5 , 5)

------------------

5 1

So the slope of the line through (10,6) and (5,5) is 1/5.

The slope of a line that is perpendicular will be the opposite reciprocal of 1/5.

The opposite reciprocal of 1/5 is -5.

The line we are looking for is y=-5x+b where we need to find the y-intercept b.

y=-5x+b goes through (-10,-8)

So we can use (x,y)=(-10,-8) to find b in y=-5x+b.

y=-5x+b with (x,y)=(-10,-8)

-8=-5(-10)+b

-8=50+b

Subtract 50 on both sides:

-8-50=b

-58=b

So the equation is y=-5x-58

4 0

4 years ago

It costs 6.95 to ship a 4-pound package and $9.35 to ship a 7-pound package. The shipping charge can be modeled by a linear func

Valentin [98]

Don’t know go on google

5 0

3 years ago