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joja [24]
3 years ago
5

I really need help (the picture of the problem is attached, you must zoom out)

Mathematics
1 answer:
zubka84 [21]3 years ago
7 0
If the entire class lasts 7/8 of an hour, then it lasts 52.5 minutes as:

60/8 * 7 = 52.5mins or 52min 30secs

a) Then warm up and cool down lasts 3/10 of the class so this is:

52.5/10 * 3 = 15.75mins or 15min 45secs

b) Instruction is 1/5 of the class so 4/5 is not spent on instruction so:

52.5 / 5 * 4 = 42mins
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12. State whether the number 97 is prime, composite, or neither.
Sophie [7]

Answer:

97 is a prime number.

I hope this helps <3


8 0
3 years ago
Find the slope of 9x=3y+5
qaws [65]
<u>9x</u> = <u>3y + 5</u>
 9         9
x = 1/3y + 5/9
x - 5/9 = 1/3y + 5/9 - 5/9
x - 5/9 = 1/3y
3(x - 5/9) = 1/3y · 3
3x - 1 2/3 = y
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4 0
3 years ago
the volume of a cylinder is 1,356.48^ feet. If the diameter is 12 feet, calculate the height of the cylinder.
Olin [163]

Answer:

11.99 ft

Step-by-step explanation:

The formula for the volume of a cyl. of radius r and height h is V = πr²h.

Solving this immediately for h yields:

         V

h = ----------

         πr²

Inserting the known quantities results in:

         V           1356.48 ft³

h = ---------- = ----------------------      Note that r = (1/2)d, so r = (1/2)(12 ft) = 6 ft

         πr²         3.14159 (6 ft)²

   =   11.994 ft

The height of the cyl. is 11.99 ft (to the nearest hundredth foot)

4 0
3 years ago
Solve the system of equations.
kotegsom [21]
Y =  2.
x =  0?
i believe I am correct about x but I am not sure.
4 0
3 years ago
Read 2 more answers
(tanx+cotx)/(secxcscx)=1
Dennis_Churaev [7]
Hello here is a solution:

3 0
3 years ago
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