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Diano4ka-milaya [45]
3 years ago
13

Which of the following expressions results in 0 when evaluated at x = 3?

Mathematics
1 answer:
Olenka [21]3 years ago
6 0

Answer:

You need to provide the expressions you have to choose from.

Step-by-step explanation:

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The kinetic energy (in joules ) of a moving object can be calculated from the expression 1/2mv to the second power, where m is t
yulyashka [42]

E = 1/2 m v^2

E = 1/2 (0.145) (40)^2

E = 0.0725 x 1600

E = 116 kg m^2/s^2

1 joule = 1 kg m^2/s^2

so here E in joules is 116 joules

so E = 116 joules

7 0
3 years ago
Chris Christina collects stamps she is 47 stamps and all she has 20 from Europe the number of African stamps is 2 times the numb
AVprozaik [17]

Answer:

Step-by-step explanation:

Let x represent the number of stamps from Europe.

Let y represent the number of stamps from Africa.

Let z represent the number of stamps from Asia.

She has 47 stamps in all. This means that

x + y + z = 47 - - - - - - - - - - - 1

The number of African stamps is 2 times the number of Asian stamps. This means that

y = 2z

She has 20 stamps from Europe. Therefore, substituting x = 20 and y = 2z into equation 1, it becomes

20 + 2z + z = 47

3z = 47 - 20 = 27

z = 27/3 = 9

y = 2z = 2 × 9

y = 18

She has 20 stamps from Europe, 18 stamps from Africa and 9 stamps Asia.

7 0
3 years ago
use the graph to write a linear function that relates y to x when the slope is 4/3 and the yint is 2​
lora16 [44]

Answer:

 y = 4/3x +2

Step-by-step explanation:

The graph crosses the y-axis at y=2, so that is the y-intercept.

The points have a rise of 4 units for each horizontal run of 3 units, so the slope is ...

 m = rise/run = 4/3

The slope-intercept equation for the line is ...

 y = mx +b . . . . . . line with slope m and y-intercept b

 y = 4/3x +2

Still stuck? Get 1-on-1 help from an expert tutor now.

7 0
2 years ago
Which of the following represents a statistical question
luda_lava [24]
There are no choices to pick
7 0
3 years ago
Plz help. I am very stuck. Its due today and I have none to ask help to.
Nonamiya [84]

Answer:

Hi there!

The correct answers for the question are:

For 45 mph, the trip time is: 9.78

For 55 mph, the trip time is: 8.36

For 65 mph, the trip time is: 7.38

Step-by-step explanation:

The values given to you represent the variable "S" so therefore you just plug in the values into the equation and you get "t"

4 0
3 years ago
Read 2 more answers
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