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Temka [501]
3 years ago
14

If x^2+y^2=49,xy=7 find x^3-y^3

Mathematics
1 answer:
Vikki [24]3 years ago
4 0

Answer: 0

Step-by-step explanation: First substitute 7 for x and y

                                             7^3-7^3 = 0

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The number 6 has exactly four different factors:1,2,3 and 6. How many different factors does the number 36 have?
Aliun [14]
36 has 1,2,3,4,6,and 9

3 0
3 years ago
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Meghan made $458 in her last paycheck. If she would like to save at least $175 of it, how much can she spend?
Olenka [21]

Answer: $283

Step-by-step explanation:

If you subtract 458-175 you get 283 so that how much Megan can spend.

3 0
3 years ago
Use the Law of Sines to solve the following triangle. Approximate your answers to the nearest tenths. c = 10.2 in, A = 45.1° B =
Sergeu [11.5K]
Law of sines says
a/sinA=b/sinB=c/SinC
where a,b,c are sides of a triangle and A,B,C are angles respectively.
a/sin45.1=c/sin59.1

(we can find angle C by sum of angles of a triangle is 180.)

a=sin(45.1) x 10.2/sin (59.1)

a=0.708 x 10.2/0.85
a=8.496
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4 0
3 years ago
A cubical water tank can contain 1000/125 cubic meters of water. Find the length of a
Gala2k [10]

Answer:

2 meters.

Step-by-step explanation:

We know that a cube of sidelength L has a volume:

V = L^3

Here, we know that the volume of water that the cube can hold is:

(1000/125) m^3

Then the volume of our cube is exactly that:

V = (1000/125) m^3

Then we have the equation:

L^3 = (1000/125) m^3

Which we can solve for L

L = ∛((1000/125) m^3 ) = (∛1000/∛125) m

Where we used that:

∛(a/b) = ∛a/∛b

Solving the cubic roots, we get:

L = (10/5) m = 2m

The length of the side of the water tank is 2 meters.

4 0
3 years ago
I am so lost on this question. I’ve never heard of a matrices so I have no clue where to even start to solve this problem.
balu736 [363]

Answer:

thas multiple matrix bro

Step-by-step explanation:

5 0
3 years ago
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