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Katena32 [7]
3 years ago
11

"What is the probability that the first two cards drawn from a deck will be red? (With replacement)"?

Mathematics
1 answer:
Novay_Z [31]3 years ago
3 0
26/52 times 26/52

Which is equivalent to 1/2 times 1/2

Which equals 1/4. Or 25%. Or 1:4. However you prefer
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If sin(x) = cos(y) for acute angles x and y, how are the angles related?
Vesnalui [34]

Answer:

b. complementary

Step-by-step explanation:

-Complementary angles are angles that add up to 90°.

-These are usually the two acute angles in the right triangle.

#To verify, lets take the two angles 30° and 60°:

Cos \ 60\textdegree=0.5\\\\Sin \ 30\textdegree=0.5\\\\\therefore Sin \ 30\textdegree=Cos \ 60 \textdegree=0.5

#We can reverse as:

Sin \ 60\textdegree=0.86603\\\\Cos \ 30\textdegree=0.86603\\\\\therefore Sin \ 60\textdegree=Cos \ 30\textdegree=0.86603

Hence, two angles are said to be complimentary if they sum up to 90°.

6 0
3 years ago
What is the circumference of this circle?
Yanka [14]
C ≈ 307.88
Hope that helps.
7 0
3 years ago
Fill in the blank. Given O below, you can conclude that OD is congruent to ___________.
Debora [2.8K]

The circle with center O has two chords AC and EF which are of same length 9.07.

OD and OB are the two perpendiculars drawn from the center O to the two chords AC and EF .It represents the distance of the chords from the centre.

The circle theorem states: congruent chords are equidistant from the center.

OD is congruent to OB.

Option A is the right answer.

4 0
3 years ago
Read 2 more answers
Given f(x)=px+q and f^3(x)=8x-7<br>find value of p and q<br><br>​
Zielflug [23.3K]

Answer:answer is 17

Step-by-step explanation:

8(3) - 7

24-7

17

6 0
3 years ago
PLS HELP ASAP!!! &lt;3
satela [25.4K]
The answer would be C. A is the same angle and Lines AE=AB and AC=AD
7 0
3 years ago
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