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2 years ago

5

Daniel wants to do 312 practice problems to prepare for an exam. if he wants to do approximately the same number of problems eac

h day for 36 days, which best describes the number of problems that he needs each to do each day?

1 answer:

alexandr1967 [171]2 years ago

6 0

Answer:

Step-by-step explanation:

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A medicine capsule is in the shape of a cylinder with two hemispheres stuck to each of its ends. The length of the entire capsul

mezya [45]

Diameter of the cylindrical portion of capsule = 5 mm
Length of the cylindrical portion of capsule = 14 mm - 5mm = 9 mm

Curved surface area of the cylindrical portion of capsule = $2\pi \: rh$
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Curved surface area of two hemisphere = $4\pi \: r {}^{2}$
$= 4 \times \frac{22}{7} \times ( \frac{5}{2} ) {}^{2}$
$= 4 \times \frac{22}{7} \times \frac{25}{4} = \frac{550}{7} mm {}^{2}$

Surface area of the capsule = Curved surface area of cylindrical portion + Curved surface area of hemispherical ends
$= ( \frac{990}{7} + \frac{550}{7} ) \: mm {}^{2} = 220 \: mm {}^{2}$

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3 years ago

Devon started the week with $50 in his checking account. On Monday he took $20 out of the

ki77a [65]

Answer:

see below

Step-by-step explanation:

Starting with 50

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Then the balance was 0

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Taking out 30

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DochEvi [55]

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morpeh [17]

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Step-by-step explanation:

2xy-6td-4(xy-9td)

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2xy-4xy-6td+36td

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