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Nady [450]
3 years ago
6

Deshawn draws a regular pentagon and rotates it about its center.

Mathematics
2 answers:
salantis [7]3 years ago
7 0

Answer:

f

Step-by-step explanation:

Molodets [167]3 years ago
7 0

Answer:

72, 144, 216, and 288.

Step-by-step explanation:

done the topic

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Carran is building a fence around his rectangular yard. The fence will cover the front and the 2 sides of the yard. The
dolphi86 [110]

9514 1404 393

Answer:

  • sides: 12 feet
  • front: 28 feet

Step-by-step explanation:

Let x represent the length of one side of the yard. Then the width of the yard is 2x+4, and the perimeter is ...

  P = 2(L +W) . . . . . . . . . . formula for perimeter of a rectangle

  80 = 2(x + (2x+4)) . . . . . with values from the problem filled in

  40 = 3x +4 . . . . . . . . divide by 2, collect terms

  36 = 3x . . . . . . . . . subtract 4

  12 = x . . . . . . . . . divide by 3. This is the length of the side fence.

  2x +4 = 2(12) +4 = 28

The fence is 12 feet on the sides and 28 feet on the front. (Its total length is 52 feet.)

7 0
2 years ago
9x^2-6x+8=0 what is the fifth step in solving this equation
Simora [160]

Answer:

write the equation as a binomial

Step-by-step explanation:


8 0
3 years ago
Joshua is going to mow lawns during his summer break. The graph in the figure shows a linear relationship between the number of
inessss [21]

Answer:

we need the graph to answer the question

Step-by-step explanation:

we wont know much he makes each week without the graph

7 0
3 years ago
(sinx-1)(sinx+cos^2x) multiply and simplify
sveta [45]
\bf [sin(x)-1][sin(x)+cos^2(x)]\\\\
-------------------------------\\\\
sin^2(x)+sin(x)cos^2(x)-sin(x)-cos^2(x)
\\\\\\\
[sin^2(x)-cos^2(x)]+[sin(x)cos^2(x)-sin(x)]
\\\\\\
-[cos^2(x)-sin^2(x)]-[sin(x)-sin(x)cos^2(x)]
\\\\\\
-[\stackrel{cos(2x)}{cos^2(x)-sin^2(x)}]-sin(x)\stackrel{sin^2(x)}{[1-cos^2(x)]}
\\\\\\
-cos(2x)-sin(x)sin^2(x)\implies -cos(2x)-sin^3(x)
7 0
2 years ago
3x - 3y = -3<br>2x - y = -5​
Korolek [52]

For this case we must solve the following system of equations:

3x-3y = -3\\2x-y = -5

To solve we follow the steps below:

We multiply the second equation by -3:

-6x + 3y = 15

Thus, we have the equivalent system:

3x-3y = -3\\-6x + 3y = 15

We add the equations:

3x-6x-3y + 3y = -3 + 15\\-3x = -3 + 15\\-3x = 12\\x = \frac {12} {- 3}\\x = -4

We look for the value of the variable "y":

2 (-4) -y = -5\\-8-y = -5\\-y = -5 + 8\\-y = 3\\y = -3

Thus, the solution of the system is given by:

(x, y): (- 4, -3)

Answer:

(x, y): (- 4, -3)

4 0
3 years ago
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