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Blizzard [7]
3 years ago
10

Solve (√7-√3)^2 A.) 10-2√21 B.) 4-2√21 C. 4 D. -4

Mathematics
1 answer:
natulia [17]3 years ago
7 0
The answer is A
10-2sqrt21
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Hi guys! I need the answer quick for 10 points! Thx!
svlad2 [7]

D . A cube that is 1 inch long , 1inch wide and 1 inch high .

\red{ \bold{What \: is \: unit \: cube \: }}

Answer

its a cube whose side is 1 unit long .

And total surface area should be 6 square units .

as we can see

3 0
4 years ago
The height above the surface of the Earth​ (in meters) of a rock thrown into the air at 10​ m/s after x seconds is given by f(x)
SSSSS [86.1K]

Answer:

do you still need help

Step-by-step explanation:

8 0
4 years ago
Read 2 more answers
In the barn, there are horses and chickens. There are 11 heads and 32 legs altogether. How many chickens are there?
Masteriza [31]

Answer:

6 Chickens

Step-by-step explanation:

Let  H represent the number of horses and  C represent the number of chickens. Since there are 32 legs altogether this means that on equation to use would be given by:

2C  +  4 H  =  32     (Eq. 1)

Another equation can be made from the fact that there are 11 heads or 11 animals altogether which can be written as:

C  +  H  =  11    (Eq. 2)

From Eq. 2, solve for the number of chickens:

C  +  H  =  11

C   =  11  - H    (Eq. 3)

Substituting Eq. 3 in Eq. 1, the number of horses can be determined:

2 C  +  4 H  =  32

2 ( 11  −  H )  +  4 H  =  32

22   −  2 H  +  4 H  =  32

2H  =  32  − 22

2 H  = 10

H = 5               Eq.4

Putting Eq.4 in Eq.1

2C + 4*5 =  32

2C = 32 - 20

2C = 12

C = 12/2

C = 6

8 0
3 years ago
A large bag of sand weighs 48.5 pounds a small bag of sand weighs 24.6 pounds if Mrs.Waggoner buys a large bag and A small bag h
Lera25 [3.4K]

Answer: 73.1 pounds of sand.

Step-by-step explanation: 48.5 Pounds (Big Bag) + 24.6 (Small Bag)

48.5+24.6 is equal to 73.1 pounds of sand. That is how much sand was purchased altogether.

3 0
3 years ago
Find the value of x in the equation below.<br> 17 = 14 +2
ozzi

Answer:

3

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
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