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Iteru [2.4K]
3 years ago
11

Which expression correctly represents "twice the sum of four and a numbe​

Mathematics
1 answer:
Firlakuza [10]3 years ago
3 0

Answer:

2( 4+n)

Step-by-step explanation:

Let n be the number  ( it could be any letter)

We need to find the sum of 4 and a number

4+n

Now multiply that by 2

2( 4+n)

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A pentagon with exterior angles is shown. The angles are 57 degrees, 108 degrees, 51 degrees, 60 degrees, and (x + 12) degrees.
kozerog [31]

Answer:

72

Step-by-step explanation:

3 0
3 years ago
If dy/dx equals cosine squared of the quantity pi times y over 2 and y = 0.5 when x = 0, then find the value of x when y = 2.5.
Ray Of Light [21]

Answer: 2 over pi

Step-by-step explanation: Bear with me, this is a hard one to explain it'll take 40 minutes to type out my explanation because my computer is not taking the photo, I could send it to you over snap or instagram immediately

7 0
3 years ago
Test the four possible vertices that you found in the objective function in part A. Use those values to determine which set of v
irga5000 [103]

The testing of the four vertices of the objective function gives;

C(5, 0, 55) = 430

C(5, 30, 25) = 400

C(15, 30, 15) = 420

C(45, 0, 15) = 510 (maximum)

<h3>How to test objective functions?</h3>

The objective function is seen as attached.

Now, it is noticed that just two of the vertices are listed. The other two vertices are intersections of x + y + z = 60 with x = 5 and the constraints on y.

We will assume that; 0 ≤ y ≤ 30

Thus, the missing vertices are;

(x, y, z) = (5, 0, 55)  and  (5, 30, 25)

The two given vertices are;

(x, y, z) = (15, 30, 15)  and  (45, 0, 15)

Therefore, the objective function values are;

C(5, 0, 55) = 9·5 +6·0 +7·55 = 45 +0 +385 = 430

C(5, 30, 25) = 9·5 +6·30 +7·25 = 45 +180 +175 = 400

C(15, 30, 15) = 9·15 +6·30 +7·15 = 135 +180 +105 = 420

C(45, 0, 15) = 9·45 +6·0 +7·15 = 405 +0 +105 = 510

Read more about Objective Functions at; brainly.com/question/16826001

#SPJ1

5 0
1 year ago
Which equation represents a line that is perpendicular to the line whose equation is -2y=3x+7
notsponge [240]

Answer:

Any line with the slope of 2/3 would be perpendicular.

Step-by-step explanation:

To find this, first solve the equation for y.

-2y = 3x + 7

y = -3/2x - 7/2

Perpendicular lines always have opposite and reciprocal slopes. Therefore, we flip the slope in the original equation (-3/2 becomes -2/3) and then we change the sign (-2/3 becomes 2/3)

8 0
3 years ago
Can someone give me the answers to these
krok68 [10]

Answer:

thanks for free points

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
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