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Licemer1 [7]
3 years ago
13

Question 7 (0.1 points)

Mathematics
1 answer:
Hitman42 [59]3 years ago
5 0

Answer:

c = 10

Step-by-step explanation:

5(2c + 5) – 5c = 2(3c+ 2) +11

Simplify...

5c+25=6c+15

Substract 6c from both sides...

5c+25-25=6c+15-25

5c=6c-10

-c=-10

Divide both sides by -1...

-c/-1 = -10/-1

c=10

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#2) A lifeguard is swimming to a drowning swimmer. The lifeguard's location is at
Ulleksa [173]

Answer:

<h3>9.43</h3>

Step-by-step explanation:

The formula for calculating the distance between two points is expressed as

D =√(x2-x1)²+(y2-y1)²

Given the coordinates (0,0) and (8,5)

D = √(5-0)²+(8-0)²

D = √5²+8²

D = √25 + 64

D = √89

<em>D = 9.43</em>

<em>Hence the distance between the life guard and the swimmer is 9.43</em>

<em></em>

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3 years ago
What are the properties of rotations?
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4 years ago
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. A referee was standing on a certain yard line as the first quarter ended. He walked 41 3/ 4 yards to a yard line with the same
deff fn [24]
100 yards minus 41 3/4 which is 58 1/4 divided by 2 which is 29 1/2
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Point C (2, 1) is the image of C(2,5) reflected across line m. What is the equation of line<br> m?
Tresset [83]

Answer:

Y=3

Step-by-step explanation:

The line is a horizontal line, and the points are in a vertical line. Y=3 is on a horizontal line at 3 up from the x axis.

8 0
3 years ago
Which statement shows how the product of (x + 7)2 demonstrates the closure property of multiplication?
Illusion [34]

<h3>(x + 7)² = x² + 14x + 49</h3>

The true statement that show the closure property of multiplication :

<h3>a.  x² + 14x + 49 is a polynomial</h3>

\texttt{ }

<h3>Further explanation</h3>

<em>If equation ax³ + bx² + cx + d = 0 has roots x₁ , x₂ , and x₃ then</em>

x_1 + x_2 + x_3 = - \frac{b}{a}

x_1 x_2 + x_1 x_3 + x_2 x_3 = \frac{c}{a}

x_1 x_2 x_3 = - \frac{d}{a}

Let us now tackle the problem!

\texttt{ }

This problem is about Polynomial.

(x + 7)^2 = (x + 7)(x + 7)

(x + 7)^2 = x^2 + 7x + 7x + 7(7)

(x + 7)^2 = x^2 + 14x + 49

x^2 + 14x + 49 is a polynomial.

x + 7 is polynomial.

It demonstrates the closure property of multiplication.

\texttt{ }

<h3>Conclusion:</h3>

<em>The true statement that show how the product of (x + 7)² demonstrates the closure property of multiplication:</em>

<h3>a.  x² + 14x + 49 is a polynomial</h3>

\texttt{ }

<h3>Learn more</h3>
  • Solving Quadratic Equations by Factoring : brainly.com/question/12182022
  • Determine the Discriminant : brainly.com/question/4600943
  • Formula of Quadratic Equations : brainly.com/question/3776858

\texttt{ }

<h3>Answer details</h3>

Grade: High School

Subject: Mathematics

Chapter: Polynomial

\texttt{ }

Keywords: Quadratic , Equation , Discriminant , Real , Number

#LearnWithBrainly

7 0
4 years ago
Read 2 more answers
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