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sertanlavr [38]
3 years ago
7

The Drama Club is showing a video of their recent play.The first showing begin at 2:30pm.The second showing is scheduled at 5:25

pm. with a 1/2hours break between the showings
Mathematics
1 answer:
zavuch27 [327]3 years ago
5 0
Each showing is 145 minutes.
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The Nutty Professor sells cashews for $7.40 per pound and Brazil nuts for $4.80 per pound. How much of each type should be used
rjkz [21]

Answer:

cos4B =1-8sin^2(B)+8sin^4(B)

Step-by-step explanation:

cos4B =1-8sin^2(B)+8sin^4(B)

8 0
1 year ago
2y+5x=4<br> please answer
marshall27 [118]

Answer:x=x=

−2

5

y+

4

5

Step-by-step explanation:

Let's solve for x.

2y+5x=4

Step 1: Add -2y to both sides.

5x+2y+−2y=4+−2y

5x=−2y+4

Step 2: Divide both sides by 5.

5x

5

=

−2y+4

5

x=

−2

5

y+

4

5

Answer:

x=

−2

5

y+

4

5

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5 0
2 years ago
5. Shelly spent $15.73 at the mall. Her sister Kelly spent $7.92. How much more did Shelly spend than Kelly? Answer using number
Allushta [10]

Answer:

$7.81

Step-by-step explanation:

$15.73-$7.92

7 0
2 years ago
What size does the radius of a sphere need to be for its volume to be larger than its surface area? HINT! It is less than 10. HI
Lera25 [3.4K]
We know that
volume of a sphere=(4/3)*pi*r³----> (r/3)*(4*pi*r²)
and
surface area of sphere=4*pi*r²
so
the volume of a sphere=(r/3)*surface area of sphere
therefore
if r=3
volume of a sphere=(3/3)*surface area of sphere
volume of a sphere=surface area of sphere

if r> 3
the term (r/3) is > 0
so
volume of a sphere > surface area of sphere

if r<3
the term (r/3) is < 0
so
volume of a sphere < surface area of sphere

examples
1) for radius r=3 units
volume of a sphere=(4/3)*pi*3³----> 113.04 unit³
surface area=4*pi*3²----> 113.04 units²
volume is equal to surface area

2) for radius r=10 units
volume of a sphere=(4/3)*pi*10³----> 4186.67 unit³
surface area=4*pi*10²----> 1256 units²
volume is > surface area

3) for radius r=2 units
volume of a sphere=(4/3)*pi*2³----> 33.49 unit³
surface area=4*pi*2²----> 50.24 units²
volume is <  surface area
7 0
3 years ago
Two cities on a map were 2 1/4 in. apart. The cities are actually 56.25 miles apart. Write the scale as a COMMON RATIO/FRACTION
arsen [322]
25 mile scale

25 miles/1 inch
5 0
3 years ago
Read 2 more answers
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