All categories

3 years ago

He figure is rotated counterclockwise. Which rotation could have taken place?

Mathematics

1 answer:

ruslelena [56]3 years ago

7 0

Answer:

a 90° rotation

I'm not sure about answer...

You might be interested in

The spring concert at a certain high school sold 155 tickets. Students were charged $4 each and adults $8 each. The income from

garik1379 [7]

Answer:

Step-by-step explanation: 85 students and 80 adults

6 0

2 years ago

X-3/2=x+8/6 solve the proportion

Aneli [31]

Answer:

x = 17/2

Step-by-step explanation:

x-3 x+8

------ = ------------

2 6

Using cross products

(x-3) *6 = 2 (x+8)

Distribute

6x - 18 = 2x+16

Subtract 2x from each side

6x-2x-18 = 2x-2x+16

4x-18 = 16

Add 18 to each side

4x-18+18 = 16+18

4x = 34

Divide each side by 4

4x/4 = 34/4

x = 17/2

8 0

3 years ago

15 - 4x = -9x + 75

algol13

Answer:

x=12

Step-by-step explanation:

8 0

2 years ago

One thousand tonnes (1000 t, one t equals 10 cubed kg) of sand contains about a trillion (10 super 12) grains of sand. How many

Phantasy [73]

Answer with Step-by-step explanation:

Since 1 mole of sand will contain Avagadro's Number of sand particles (by definition of 1 mole)

Thus we have

1 mole of sand = $6.022\times 10^{23}$ sand particles

Thus in number of trillion sand particles we have no of trillion sand particles in 12 mole is

$\frac{6.022\times 10^{23}}{10^{12}}=6.022\times 10^{11}$

Now since it is given that mass of 1 trillion sand particles is 1000 tonnes Thus the mass of $6.022\times 10^{11}$ trillion sand particles is

$Mass=1000\times 6.022\times 10^{11}=6.022\times 10^{14}tonnes$

Part 2)

Since it is given that volume of 1 sand particle is $1.0mm^{3}$ thus the volume of 1 mole of sand is volume of $6.022\times 10^{23}$ sand particles

Thus volume of 1 mole is $V=1.00\times 10^{-18}km^{3}\times 6.022\times 10^{23}=6.022\times 10^{5}km^{3}$

Now since the Area of united states is $A=3.6\times 10^{6}mile^{2}=5.8\times 10^{6}km^{2}$

Thus the depth of the sand pile is

$Depth=\frac{Volume}{Area}=\frac{6.022\times 10^5}{5.8\times 10^6}=0.10387km=103.8meters$

4 0

3 years ago

50 points for the person to answer these :)

svetoff [14.1K]

I'm assuming you don't still need these? Sorry I didn't see this in time

7 0

2 years ago