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artcher [175]
2 years ago
7

Help please ........​

Mathematics
1 answer:
Dmitry_Shevchenko [17]2 years ago
5 0

9514 1404 393

Answer:

  1. no
  2. yes

Step-by-step explanation:

Put the values of x and y in the equation and see if it is true.

1.  2 = 2×0 . . . . False (not a solution)

2. 12 = 6×2 . . . True (is a solution)

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Help find the missing number for x
elena55 [62]

Answer:

41

Step-by-step explanation:

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= 1600+81

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x= √1681 = 41

3 0
3 years ago
The product of two numbers is 192. what is the minimum value of the sum of the first value plus twice the second value
VARVARA [1.3K]
Let x and y be the two positive numbers. -  Their product is 192: x *  y  =  192   equation 1

-  the sum of the first plus twice the second is a minimum:  x + 2y

<span>From the first equation, y =  192 / x. 
Substitute that into the second equation:
</span>
 x + 2y = x + 2(<span>192/x ) = x + 384/x

</span>f(x) is minimum when f'(x) = 0 and f"(x) > 0 

f(x)= <span>x + 384/x
</span>
f(x) = 1-384/x^2 

<span>1-384  / x^2 =  0 

x^2-384 = 0 

x^ 2= 354
 x = radical  354    = 18.8  here i'm confused why the number is decimal
???/ 
</span>

4 0
3 years ago
Use the image from problem 11 to answer this problem.
guajiro [1.7K]

Answer:

34.

Step-by-step explanation:

All angles of a triangle combined equal 180, so if 1 angle measures 146, subtract 146 from 180. 180-146=34

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2 years ago
A person can burn 250 calories in 20 minutes of running. Find the unit rate of calories burned per hour.
Yuliya22 [10]
750 calories per hour
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3 years ago
1/4(2x+8) -1/5(15x-25)H=25.5
Furkat [3]

Answer:

Abracadabra

Step-by-step explanation:

7 0
2 years ago
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