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dolphi86 [110]
2 years ago
9

Fill in the blank with the correct number to balance the equation: 4Cr + 3O2 → Cr2O3

Mathematics
1 answer:
ivanzaharov [21]2 years ago
4 0

Answer:

2

Step-by-step explanation:

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what is the probability of drawing two blue cards if the first card is not included in the second draw? simplify your answer com
BlackZzzverrR [31]

Answer:

5/14

Step-by-step explanation:

The total number of cards is 8

There are 5 blue cards

P(1st card is blue) = blue/total = 5/8

We take away a blue card

The total number of cards is 7

There are 4 blue cards

P(2nd card is blue) = blue/total = 4/7

The probability of blue blue is P(blue blue ) =

P(1st card is blue)*P(2nd card is blue) =

5/8* 4/7

20/56

We can divide the top and bottom by 4

5/14

3 0
3 years ago
what is the equation for the volume of a cylinder? I think is v=pi × r^2 * h just asking for clarification ​
lys-0071 [83]

Answer:

V=pi multiplied by r^2 times height

Step-by-step explanation:

3 0
3 years ago
A flower bed has a shape of a rectangle 9yards long and 3 yarss wide what is the area in square feet
Maslowich
It should be 81 square feet.

3 yards x 9 yards = 27 yards squares.

It asks for your answer in square feet, so you multiply by 3. This is because there are 3 feet in ever yard.

27 x 3 feet = 81 square feet.
8 0
3 years ago
Please someone help quickly thank you very much
Tema [17]

Answer:

I think the answer is 81.

Step-by-step explanation:

Vertical angles are congruent.

x + 3 = 84

  - 3  = -3

--------------

x = 81

3 0
3 years ago
Sum of 2 and 5 is divided by the difference of 9 and 4 in expression form ​
Goshia [24]

Answer:

(2 + 5) / (9 - 4)

Step-by-step explanation:

"sum of 2 and 5" = (2 + 5)

"difference of 9 and 4" = (9 - 4)

"sum of 2 and 5 is divided by the difference of 9 and 4"

= (2 + 5) / (9 - 4)

5 0
3 years ago
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