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skelet666 [1.2K]
3 years ago
13

Radical 2 squared plus 7 squared

Mathematics
2 answers:
ololo11 [35]3 years ago
7 0

Answer: 51

Step-by-step explanation: (sqrt(2))^2 + 7^2

The squareroot and square cancel, leaving 2. 7^2=7*7=49

49+2=51

Vladimir [108]3 years ago
4 0

Answer:

51

Step-by-step explanation:

√2^2 + 7^2

√4 + 49

2+49

51

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Step-by-step explanation:

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3 years ago
Find the surface area of the composite figure.
taurus [48]

Answer:

surface area is 39

Step-by-step explanation:

add the areas of each geometric figure making up the composite 3D figure.

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2+2+6+6

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3 0
3 years ago
soymeal is 14 percent protein cornmeal is 7 percent protein how many pounds of each should be mixed together in order to get 280
erma4kov [3.2K]
Let the weight of soymeal be s, and let the weight of cornmeal be c.
You need a total of 280 lb, so that gives us one equation.

s + c = 280

Now we use the protein to write another equation.
The protein in s lb of soymeal is 0.14s.
The protein in c lb of cornmeal is 0.07c.
The protein in 280 lb of 0.09% protein mix is 0.09(280).
This gives us a second equation.

0.14s + 0.07c = 0.09(280)

Now we solve the two equations as a system of equations.

s + c = 280
0.14s + 0.07c = 0.09(280)

Solve the first equation for s and plug in tot eh second equation.

s = 280 - c

0.14(280 - c) + 0.07c = 25.2

39.2 - 0.14c + 0.07c = 25.2

-0.07c = -14

c = 200

Now we substitute c = 200 in the first equation to find s.

s + 200 = 280

s = 80

Answer: 200 lb of soymeal and 80 lb of cornmeal
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