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omeli [17]
3 years ago
10

Randy is checking to determine if the expressions 2x+2+4x and 2(3x+1) are equivalent. When x=3, he correctly finds that both exp

ressions have a value of 20. When x=2, he correctly evaluates the first expression to find that 2x+2+4x=14.What is the value of the second expression when x=2 and are the two expressions equivalent?A. The value of the second expression is 7, so the expressions are not equivalent.B. The value of the second expression is 12, so the expressions are not equivalent.C. The value of the second expression is 14, so the expressions are equivalent.D. The value of the second expression is 20, so the expressions are equivalent.
Mathematics
2 answers:
Shalnov [3]3 years ago
4 0
The answer shd be c.
Delvig [45]3 years ago
4 0

Answer: c. ;]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]


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Part A: A circle is the set of all points that are the same distance from one given point. Find an example that contradicts this
IRINA_888 [86]

Answer:

  • a sphere
  • the definition needs to restrict all of the points to a plane

Step-by-step explanation:

In 3-dimensional Euclidean space, a sphere is the set of all points the same distance from a given point. The given definition of a circle only applies when the given point and the solution set are in the same plane, and the geometry is Euclidean.

8 0
3 years ago
The cost, in millions of dollars, for a company to manufacture x thousand speed boats is given by the function C(x) = 3x2 - 30x
nalin [4]

Answer:

  5000

Step-by-step explanation:

In vertex form, the cost function is ...

  C(x) = 3(x² -10x) +175 = 3(x² -10x +25) +175 -3(25)

  C(x) = 3(x -5)² +100

The vertex is at x=5, so the cost function will be minimized when 5000 speed boats are produced.

7 0
3 years ago
Carmen's golf score is 6 strokes less than Linda's. Their two scores total 156. What is each girls score?​
DochEvi [55]

Answer:

Carmen's score is 75 strokes.

Linda's score is 81 strokes.

Step-by-step explanation:

Let the score of Linda be "x".  

<em>It is given that Carmen's golf score is 6 strokes less than Linda's.</em>

Thus, Carmen's score is (x-6).

The total score of the girls is

= x + (x-6) = 2x-6

The total score is given to be 156.

Thus, the equation becomes,

2x-6 = 156

2x= 162

x = 81

<em>Thus Linda's score is 81 and Carmen's score is (156-81) 75.</em>

5 0
3 years ago
Find the area of the figure.<br><br> 40.8 cm2<br><br> 1128 cm2<br><br> 47.52 cm2<br><br> 33.7 cm2
Marat540 [252]

Answer:

answer is 47.52 cm2

Step-by-step explanation:

follow me please

6 0
2 years ago
Which steps will generate an expression equivalent to 20(x + 17)? Need Help, Thanks
DENIUS [597]
20(x+17)
20×x+20×17
20x+340
5 0
3 years ago
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