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Sauron [17]
3 years ago
15

PLA HELP PLS I NEED TO PASS !! Mendel team built a structure for a competition using wooden spheres and cylinders. The wood they

used weighs 1 g for each 1.4cm ^3. They used 4 spheres and 4 cylinders to build the base of the structure. Each sphere has a radius of 4.45cm. Each cylinder has a radius of 3cm. The base weighs 1700 g. What is the height of the cylinders? Use 3.14 to approximate pi and round your answer to the nearest whole number. Show your work
Mathematics
1 answer:
Ainat [17]3 years ago
6 0
The answer to your question is 22.875
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dybincka [34]
You’ve got the correct answer (which is the first one) hope this helps
5 0
2 years ago
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A partial sum of an arithmetic sequence is given. Find the sum.
Nezavi [6.7K]

Answer:

72.3

Step-by-step explanation:

Given that:

The arithmetic sequence:

\sum \limits ^{14}_{k=0} (3 + 0.26k)

The first term of the sequence a_0 = 3 since k = 0

i.e (3 + 0.26(0)) = 3

The last term of the sequence a_{14} = 6.64

i.e (3+ 0.26(14)

= (3 + 3.64)

= 6.64

Total no of terms = 15 i.e from 0 to 14

∴

The partial sum of the arithmetic sequence = \dfrac{Total \ no \ of \ terms }{2}  \times (a_o+a_{15})}

=\dfrac{15 }{2}  \times (3+6.64)}

= 72.3

3 0
2 years ago
On Monday, Torrance practiced the violin for 4/10 of an hour. On Tuesday, he practiced for 1 6/8 of an hour. How much time did h
Yuri [45]

Answer: 2\frac{3}{20}

<u>Step-by-step explanation:</u>

First, convert mixed numbers into improper fractions and simplify all fractions

\frac{4}{10} ÷ \frac{2}{2} = \frac{2}{5}

1\frac{6}{8} = \frac{8(1) + 6}{8} = \frac{14}{8} ÷ \frac{2}{2} = \frac{7}{4}

Next, find their sum.  Remember to find the LCD and convert the fractions so they have like denominators.

Monday + Tuesday = Total

\frac{2}{5} + \frac{7}{4} = Total      <em>the LCD of 5 and 4 is 20</em>

(\frac{4}{4})\frac{2}{5} + (\frac{5}{5})\frac{7}{4} = Total

\frac{8}{20} + \frac{35}{20} = Total

\frac{43}{20} = Total

Then, convert the improper fraction into a mixed number

\frac{43}{20} = 2\frac{3}{20}

7 0
3 years ago
Can someone help me please and thankyou
Phantasy [73]
X° = 90°-29°
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y°= 90°- 61°
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8 0
2 years ago
What type of sample produces valid results?
Finger [1]
I would say D the other answers seem wrong
3 0
2 years ago
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