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Mrrafil [7]
3 years ago
8

Use the algebraic expression below to identify the following parts of the

Mathematics
2 answers:
antiseptic1488 [7]3 years ago
6 0

Answer:

−4x+13

Step-by-step explanation:

collect like terms: (−3x−2x+x)+(16+5−8)

Snowcat [4.5K]3 years ago
5 0

Answer:

-3x-2x-x+16+5-8=-4x13

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What is the solution of 5y + 1=31
gayaneshka [121]

Answer:

y=6

Step-by-step explanation:

edge2020

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2 years ago
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ill give brainliest n a recent survey, 3 out of every 5 students said Math is their favorite class.If 200 students were surveyed
anyanavicka [17]

Answer: <em>D. 120 students</em>

Step-by-step explanation:

<em>This is an easy solution</em>

<em>Take 300 and divide it by 5</em>

<em>300/5</em>

<em>This will result in 40</em>

<em>Now Multiply 40 by 3</em>

<em>Like so: 40x3</em>

<em>This will result in </em><em>120</em>

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2 years ago
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Which graph represents the function y = 2x – 4? A coordinate plane with a line passing through (negative 4, 0) and (0, 2). A coo
VARVARA [1.3K]

Answer:

The third option: "A coordinate plane with a line passing through (0, negative 4) and (2, 0)."

Step-by-step explanation:

Use the equation defined by the function: y = 2x - 4 to check the (x, y) values they give you. If they both render true mathematical statements, those are indeed points on the plane that belong to the given line.

For the third case; the pairs (0,-4) and (2,0), both satisfy the equation of the line that is given.

For (0,-4):  y = 2x - 4 becomes:

(-4)=2(0)-4\\-4=0-4\\-4=-4 which is a TRUE statement

For (2,0):  y = 2x - 4 becomes:

(0)=2(2)-4\\0=4-4\\0=0 which is also a TRUE statement.

This option is the only one that verifies both given points as truly being part of the given line.

8 0
2 years ago
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Consider the following problem: A farmer with 750 ft of fencing wants to enclose a rectangular area and then divide it into four
gregori [183]

Answer and step-by-step explanation:

For any rectangle, the one with the largest area will be the one whose dimensions are as close to a square as possible.

However, the dividers change the process to find this maximum somewhat.

Letting x represent two sides of the rectangle and the 3 parallel dividers, we have 2x+3x = 5x.

Letting y represent the other two sides of the rectangle, we have 2y.

We know that 2y + 5x = 750.

Solving for y, we first subtract 5x from each side:

2y + 5x - 5x = 750 - 5x

2y = -5x + 750

Next we divide both sides by 2:

2y/2 = -5x/2 + 750/2

y = -2.5x + 375

We know that the area of a rectangle is given by

A = lw, where l is the length and w is the width.  In this rectangle, one dimension is x and the other is y, making the area

A = xy

Substituting the expression for y we just found above, we have

A = x(-2.5x+375)

A = -2.5x² + 375x

This is a quadratic equation, with values a = -2.5, b = 375 and c = 0.

To find the maximum, we will find the vertex.  First we find the axis of symmetry, using the equation

x = -b/2a

x = -375/2(-2.5) = -375/-5 = 75

Substituting this back in place of every x in our area equation, we have

A = -2.5x² + 375x

A = -2.5(75)² + 375(75) = -2.5(5625) + 28125 = -14062.5 + 28125 = 14062.5

6 0
3 years ago
Which of the following is a ballistic stretching exercise?
Vladimir [108]

Answer:

B. Arm circles

Hope you have a great day :)

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1 year ago
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