Answer:
0
Step-by-step explanation:
Total outcomes = 6
Favourable outcomes = 0(As there is no 7 in a dice)
Probability = Favourable Outcome/Total outcomes
=> 0/6
=> 0
Answer: The area is 5x + 20
Step-by-step explanation:
Add all the numbers up.
7 + 4x - 8 = 3
13 + (x + 8) = (x + 21)
Therefore, your answer is 5x + 20
Let me know if you have any questions!
Answer:
Step-by-step explanation:
Answer:
A stone is thrown straight up from the edge of a roof, 750 feet above the ground at a speed of 14 feet per second. A) Remembering that the acceleration due to gravity is -32 feet per second squared, how high is the stone 2 seconds later? B) At what time does the stone hit the ground? C) What is the velocity of the stone when it hits the ground?
Step-by-step explanation:
A stone is thrown straight up from the edge of a roof, 750 feet above the ground at a speed of 14 feet per second. A) Remembering that the acceleration due to gravity is -32 feet per second squared, how high is the stone 2 seconds later? B) At what time does the stone hit the ground? C) What is the velocity of the stone when it hits the ground?
<span>cos(x)/(1+sin(x) )+(1+sin(x))/cos(x) =2sec(x)
Work on the left hand side.
</span>[Common denominator is (1+sin(x))*cos(x)]
cos(x)/(1+sin(x) )+(1+sin(x))/cos(x) <span>
= (cos(x)^2+(1+sin(x))^2)/(</span>(1+sin(x))*cos(x))
=(cos(x)^2+1+sin(x)^2+2sin(x))/((1+sin(x))*cos(x))
=(cos(x)^2+sin(x)^2+1+2sin(x))/((1+sin(x))*cos(x))
=(1+1+2sin(x))/((1+sin(x))*cos(x))
=(2+2sin(x))/((1+sin(x))*cos(x))
=2(1+sin(x))/((1+sin(x))*cos(x))
=2/cos(x)
=2 sec(x) [QED]
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</span>
