21 I think because 3 times 7 is 21 so you multiply 3 times 7.
The probability that a point is chosen at random in the square is in the blue region is 0.8.
<h3>What is Probability?</h3>
The probability helps us to know the chances of an event occurring.
As we know that the area of the shaded region is the sum of the area of triangle A and the area of triangle B. Therefore, the area of the blue shaded region is,
The area of the square can be written as,
Now, the probability that a point is chosen at random in the square is in the blue region can be written as,
Hence, the probability that a point is chosen at random in the square is in the blue region is 0.8.
Learn more about Probability:
brainly.com/question/795909
Answer:
C.
Step-by-step explanation:
I dont really know so hope its right.
The answer would be -323 because absolute value means the magnitude of a real number without regard to its sign. put into easier words means u put the opposite number...
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<span>x2</span>=<span>102</span>+<span>72 </span>= <span>14
</span><span>x= √149 = 12,2
</span><span>and for b-c diagonal
</span>
<span>y2</span>=<span>72</span>+<span>32</span>=<span>58
</span><span>y= √58 = 7,616
</span><span>and a-c
</span>
<span>z2</span>=12,<span>22</span>+7,<span>6162</span>=206,<span>84
</span>
z = √206,84 = 14,3
<span>so angle would be
</span>
<span>cosθ=7,616÷14,38
</span>θ = <span>58.19</span>