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3 years ago

Help me please!!!!! :)))

Mathematics

1 answer:

Vikentia [17]3 years ago

4 0

Answer:

Step-by-step explanation:

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Find the mean of the set of data. Use a calculator if necessary. (Remember to put the list in numerical order.)

kompoz [17]

Answer:

9.4

Step-by-step explanation:

How to find the mean of a data set: Add each number in the set together. Then divide the sum of all of the numbers by how many numbers there are.

5 0

3 years ago

Read 2 more answers

If you ride a pterodactyl for 3 hours at 10 mph and then ride a stegosaurus for 1 hour at 2 mph, what would be your average spee

g100num [7]

Answer:

8 mph

Step-by-step explanation:

The equation for average speed is:

$average\ speed=\frac{total\ distance}{total\ time}$

Let's start by finding the distance for each animal:

$d=st\\d=3h*10\frac{m}{h}\\d=30m$

$d=st\\d=1h*2\frac{m}{h}\\d=2m$

Now, we can find the average speed:

$average \ speed=\frac{30mi+2mi}{3hr+1hr}=\frac{32mi}{4hr}=8\frac{mi}{h}$

8 mph

3 0

3 years ago

6x²-y³=1<br><br>differentiate the equation to dy/dx

kenny6666 [7]

Dy/dx=4x/y2 this is what i got
hope this helps

5 0

3 years ago

What is the standard form of the quadratic equation y=−1/2(x+5)^2−10?

mr Goodwill [35]

Answer:

y = -1/2x^2 -5x -45/2

Step-by-step explanation:

Multiply it out and collect terms.

y = -1/2(x^2 +10x +25) -10 . . . . . expand the square

y = -1/2x^2 -5x -25/2 -20/2 . . . eliminate parentheses

y = -1/2x^2 -5x -45/2 . . . . . . . . collect terms

3 0

4 years ago

A light bulb filament is one-hundredth of an inch thick, with an allowable error of 2 percent. What is the least allowable thick

Andreyy89

Answer:

0.00998 Inches

Step-by-step explanation:

Thickness of the light bulb filament = 0.01 Inch

Allowable error = 2%.

2% of 0.01 = 0.02 X 0.01 =0.0002 Inch

Therefore, the allowable thickness of the bulb filament

$=0.01 \pm 0.0002 $ Inches$

We can then calculate the least allowable thickness of the filament as:

$=0.01 - 0.0002 \\=0.00998$ Inches$

The least allowable thickness of the filament is 0.00998 Inches.

3 0

4 years ago