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Lady bird [3.3K]
3 years ago
13

Please answer these two questions !!!

Mathematics
1 answer:
Roman55 [17]3 years ago
3 0

I don't know 1 but 2 can be 2.3 over 4.5 I think sorry if it's wrong but I hope it helps

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52% of ______ days is 13 days.
abruzzese [7]
'of' in mathematics means multiplication
'is' in mathematics means equal

52% * x = 13

52/100 * x = 13

0.52x = 13

x = 13/0.52

x = 25

52% of 25 days is 13 days.

8 0
3 years ago
What is the surface area of the cylinder with height 4m and radius 2m? Round your answer to the nearest thousandth.
Artyom0805 [142]

Answer:

50.265m^3

Step-by-step explanation:

because the formula for solving this problem is πr^2•height and then to finish solving it would have to be put into cubed as it's 3d

3 0
3 years ago
Sum of the areas of two squares is 468 m2. If the difference of their perimeters is 24m, determine the sides of the two sqares.
postnew [5]

Answer:

Step-by-step explanation:

square = 468 m² x² + (6+x)² = 468 [Area of a square = side²] x² + (6)² + x² + 2×6×x= 468 [(a+b)²= a²+b²+2ab] 2x² + 36 + 12x= 468 2x² + 12x + 36 - 468= 0 2x² + 12x + 36 - 432 = 0 2(x² +6x - 216)= 0 x² +6x - 216 = 0 x² +18x -12x -216 =0

5 0
2 years ago
HELP!! URGENT!! I WILL AWARD BRAINLIEST
castortr0y [4]
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3 years ago
Read 2 more answers
Find the domain of the function:
Pie

x^3+8x\not =0\\ x(x^2+8)\not =0

x^2+8>0 for any x, so only x\not =0

D_f:x\in(-\infty,0)\cup(0,\infty)

7 0
3 years ago
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