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ollegr [7]
3 years ago
10

Pentagon ABCDE is rotated 90 degrees counterclockwise about the origin to form pentagon A’ B’ C’ D’ E’. What is the y-coordinate

if point C’?

Mathematics
2 answers:
Nat2105 [25]3 years ago
7 0

Answer:

4

Step-by-step explanation:

Hope this helped!

Sophie [7]3 years ago
5 0

Answer:

4

Step-by-step explanation:

<em>When rotating a point 90 degrees counterclockwise about the origin the  point A(x,y) becomes A'(-y,x). </em>

Point C has coordinates of (4, 3)

New coordinates will be C'(-3, 4)

<u>So the answer is:</u>

y-coordinate of C' is 4

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malfutka [58]

Answer:

C. Finding the mean weight of boxers

E. Using the results of a poll to predict who will be the next president

Both C & E answer are right!!

6 0
3 years ago
PLEASE HELP BRAINLIEST
Sliva [168]

Answer:

I cant see whats the question

Step-by-step explanation:

8 0
3 years ago
Find the missing side lengths.<br><br> Can someone please help???
ale4655 [162]

Answer:

x = sqrt (2), y = sqrt (2)

Step-by-step explanation:

Here is how we can approach this problem in a step by step solution:

  1. Look at what we are given - we know that the triangle is a right triangle (has a square on one of its angles representing 90 degrees), and the hypotenuse (the side opposite 90 degree angle) is 2 units long, and one of the other angles is 45 degrees
  2. Using this information about angle measurements, we can solve for the third angle using the sum of angles in a triangle equals 180 degrees theorem: 180 - 90 - 45 = 45. After solving, we get that the final angle is 45 degrees
  3. Now, we know that the angles of the triangle are 90, 45, and 45 degrees. Using the base angle theorem, we know that his triangle must be an isocoles right triangle
  4. That means that both legs of the triangle must be congruent (x = y)
  5. Finally, we can use the Pythagorean theorem because this is a right triangle to solve for the missing sides 4 = x^2 + y^2, 4 = 2 + 2, x = sqrt (2) y = sqrt (2)

*Also, if you knew that a 45-45-90 triangle's sides form a ratio of a, a, and sqrt (2) a, you could also use that and substitute in the values to solve. Both ways work! Hope this helps!!

6 0
3 years ago
Help me out please :)
Alisiya [41]

Answer:

2$ I think

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Log k-log(k-2)=log25
Studentka2010 [4]

Answer:

k = \frac{25}{12}

Step-by-step explanation:

Using the rules of logarithms

log x - log y = log(\frac{x}{y} )

log a = log b ⇒ a = b

Given

logk - log(k - 2) = log25, then

log (\frac{k}{k-2} ) = log25, thus

\frac{k}{k-2} = 25 ( multiply both sides by (k - 2)

25(k - 2) = k

25k - 50 = k ( subtract k from both sides )

24k - 50 = 0 ( add 50 to both sides )

24k = 50 ( divide both sides by 24 )

k = \frac{50}{24} = \frac{25}{12}

6 0
3 years ago
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