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3 years ago

16cm/min equals how many meters in one hour

1 answer:

6 0

16cm x 60 would give you the centimeters per hour
16 x 60 = 960cm
= 9.6m

(There are 60 minutes in an hour which is how i got that number)

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939miles * 15gallons / 40miles = x

pantera1 [17]

Answer: 281.7

Step-by-step explanation:

3 0

2 years ago

Please help

Ivenika [448]

Answer:

Step-by-step explanation:

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3 years ago

The estimated measurements of the objects are shown below.

olga2289 [7]

The scientific notation is a method that scientists use to easily handle very large numbers or very small numbers. As an example, instead of writing down the value 0.0000000065, we write the value 6.5 x 10-9 in scientific notation. The number of places the decimal point got moved becomes the exponent of the number 10. When the movement is from left to right, the exponent is negative (for very small numbers). When it is right to left, the exponent is positive (for very large numbers).

Therefore writing estimated measurements in scientific notation:

length of a grain of salt : 0.0002 centimeters = 2 x 10-4 centimeters

width of a key ring : 0.02 centimeters = 2 x 10-2 centimeters

6 0

2 years ago

HELP! I'll give brainliest.

gavmur [86]

Answer:

-4 < x ≤ -3

Step-by-step explanation:

The compound inequality needs to be separated into its two parts in order to obtain a solution.

We can do a little preliminary work to make the solutions easier.

2x +6 ≤ x +3 < 3x +11 . . . . . given

x +3 ≤ 0 < 2x +8 . . . . . . . . subtract x+3

x +3 ≤ 0

x ≤ -3 . . . . . . . subtract 3

<h3>right side</h3>

0 < 2x +8

0 < x +4 . . . . divide by 2

-4 < x . . . . . . subtract 4

<h3>solution</h3>

Now, we can rearrange these back into a compound inequality.

-4 < x ≤ -3

_____

The graphing calculator shows the same solution.

6 0

1 year ago

What is the area of a rectangle with vertices at (−3, −1) , (1, 3) , (3, 1) , and (−1, −3) ?

kondaur [170]

The length of the side joining points (-3, -1) and (1, 3) is given by

$l= \sqrt{(1+3)^2+(3+1)^2} \\ \\ = \sqrt{4^2+4^2} = \sqrt{16+16} \\ \\ = \sqrt{32}$

The length of the side joining points (1, 3) and (3, 1) is given by

$w= \sqrt{(3-1)^2+(1-3)^2} \\ \\ = \sqrt{2^2+(-2)^2} = \sqrt{4+4} \\ \\ = \sqrt{8}$

The area of a rectangle is given by length times width.

Thus, the area of the given rectangle is given by

$Area=l\times w \\ \\ = \sqrt{32} \times \sqrt{8} \\ \\ = \sqrt{32\times8} = \sqrt{256} \\ \\ =\bold{16} \ units^2$

7 0

2 years ago

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