Answer:
Step-by-step explanation:
Ellen is playing a video game in which she captures butterflies.there are 3 butterflies on screen, but the number of butterflies doubles every minute.after 4 minutes, she was able to capture 7 of the butterflies
Initial buttlerfies =3
Since doubles every minute, the no of butterflies follow a geometric progression, with first term =3, and common ratio =2
Hence in 4 minutes no of butterflies = 3(2)^(4-1) = 3(8) =24
So in 4 minutes no of butter flies =24
NO of buttlerflies captured = 7
Remaining butterflies = 17
Answer:
Total air in the tent =77×16=1232 m 3 (which is the total volume of tent) Since the tent is conical we will use some formula of cone: Volume= 31πr 2h ; Curved surface area=πrl l= slant height & r=7m Volume = 31πr 2h= 31π(7 2)h= 31 7227 2h= 3154h And we eknow that total volume is 1232m 3 So, 1232= 3154h h= 1541232×3=24m
Step-by-step explanation:
To solve this problem, we need to use the volume formula of a cone and equate it to the total volume of air needed by the 77 persons. Once we solve for the height, we can then determine the curved surface area of the cone using the radius and height.
This mathematics problem can be solved using the formula for the volume of a cone, which is given by V = 1/3 * π * r² * h where “r” stands for the radius of the base of the cone, “h” corresponds to the height, and “π” is a constant that roughly equals to 3.14. To accommodate 77 persons, with each person needing 16 m³ of air to breathe, the total volume necessary would be 77 * 16 = 1232 m³. Setting this equal to the volume of the cone formula and plugging in the given radius (r = 7 m), we solve for the height. Simultaneously, the curved surface area of a cone is given by A = π * r * l = π * r * sqrt((r²)+(h²)). We can evaluate both the height of the tent and its curved surface area applying these equations.
Learn more about Volume and Surface Area of Cone here:
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1 hour, 50 minutes
2 hours
2 hours, 10 minutes
Answer: 2 hours, 10 minutes
Step-by-step explanation:
First page:
Angles B and C >>> vertical angles
C + D is 180 because they form a >>> straight line
D and E are congruent bc they are alternating interior.
Second page:
If A = 72 degrees, then D is 72 degrees. E and G would also be 72 degrees.
If A = 72, just remember that A + B = 180 (bc together they are a straight line), so 180-72 = 108. So Angle B is 108 degrees.
If B is 108 degrees, then C, F and H are also 108 degrees.
So the actual questions in the order listed:
B = 108 degrees
D = 72 degrees
E = 72 degrees
F = 108 degrees
H = 108 degrees
G = 72 degrees