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3 years ago

What do these signs mean

Mathematics

1 answer:

polet [3.4K]3 years ago

8 0

:-) :-( ;-) :-P (^o^) ^o^ ^_^ :-! 8-) :-{ :-[ (-: 

or

 that is not an exercise. but still thanks for the points.

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Pergunta 5 You need to fill a football with air to play with it. You know that your pump expels air at speed of 8.2 ft/s. The ne

ra1l [238]

The volume flow rate of the air being pumped into the football will be given by:
Q=V*A
Where
V=Speed
A=Area
You know that your pump expels air at speed of 8.2 ft/s
The area of The needle of your pump is
A=pi*r^2=pi*((4.5/1000)*(3.28))^2=0.00068442 ft^2
Finally
Q=V*A=(8.2 ft/s)*(0.00068442ft^2)=0.005612243 ft^3/s

8 0

3 years ago

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Citrus2011 [14]

Answer:

170 km/h

Step-by-step explanation:

4 0

2 years ago

Solve the nonlinear inequality. express the solution using interval notation. (x − 2)(x + 8) < 0 webassign

stepladder [879]

First you find the zeros/x-intercepts using the factors already given in the inequality.

$x = 2$
$x = - 8$

Therefore we make our solution using the interval notation.

$- 8 \leqslant x \leqslant 2$

8 0

2 years ago

I need help with this problem. please help

Margarita [4]

Answer:

$y = 46x + 0$

Step-by-step explanation:

The equation of a line follows the following format

$y = mx + c$

Note m= the gradient of the line or the slope of the line. To find the gradient it is

$m = \frac{rise}{run}$

On this graph the

$rise \: = 460 \: \\ and \\ run = 10 \\ \\ m = \frac{460}{10} \\ m = 46$

After finding the gradient we can now find the equation of the line. We can use any point on the line in order to do this, in that case lets use the point (10, 460)

$y = 460 \: \: \: \: \: \: x = 10 \: \: \: \: \: m = 46\\ y = mx + c \\ 460 = (46)(10) + c \\ 460 = 460 + c \\ 460 - 460 = c \\ 0 = c$

$y = 46x + 0$

6 0

1 year ago

1. What is the greatest common factor of 16, 24, 40? *

docker41 [41]

Answer:

1. B

2. C

3. A

4. D

5. C

6. C

7. A

8. A

9. B

10. B

Step-by-step explanation:

5 0

2 years ago