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lesantik [10]
3 years ago
6

I need help ASAP! PLEASEEEE ​

Mathematics
1 answer:
salantis [7]3 years ago
6 0

Answer:

a) (i) 14.6cm (3 s.f.)

(ii) 77.6° (1 d.p.)

b) (i) see 4th picture

(ii) 16.3cm² (3 s.f.)

Step-by-step explanation:

Please see the attached pictures for full solution.

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How many full bag of wheat can be emptied into the conical end of radius 8.4 metre and height 3.5 metre, if space for the wheat
Vedmedyk [2.9K]

vol of wheat bag = 1.96 mater cuba so 258.72 / 1.96 = 392 bags I think this is the anwers. if wrong then sorry

4 0
3 years ago
Suppose the population standard deviation is σ = 5 , an SRS of n = 100 is obtained, and the confidence level is chosen to be 98%
beks73 [17]

Answer:

1.165.

Step-by-step explanation:

We have that to find our \alpha level, that is the subtraction of 1 by the confidence interval divided by 2. So:

\alpha = \frac{1-0.98}{2} = 0.01

Now, we have to find z in the Ztable as such z has a pvalue of 1-\alpha.

So it is z with a pvalue of 1-0.01 = 0.99, so z = 2.33

Now, find the margin of error M as such

M = z*\frac{\sigma}{\sqrt{n}}

In which \sigma is the standard deviation of the population and n is the size of the sample.

In this problem, we have that:

\sigma = 5, n = 100. So

M = z*\frac{\sigma}{\sqrt{n}}

M = 2.33*\frac{5}{\sqrt{100}} = 1.165

So the correct answer is:

1.165.

6 0
3 years ago
You are still debating about the two different computers. If you are paid $10.00/hour and your deductions are FICA (7.65%), fede
sattari [20]

Answer:

89 hours

Step-by-step explanation:

First solve all the deductions.

For each multiply the $10, which you are paid, and the percentage.

For FICA: $10 x 0.0765 = $0.77 per hr

For Fed tax: $10 x 0.12 = $1.2 per hr

For State tax: $10  x 0.08 = $0.8 per hr

Now subtract the remaining pay:

10 – 0.77 – 1.2 – 0.8 = $7.23

Time required = $640 / $7.23 per hr

Time required = 89 hrs

Final answer:

89 hours

8 0
3 years ago
Winton wants to find the volume of a cube. He uses the formula for volume of a cube V= <img src="https://tex.z-dn.net/?f=%20%7Bs
N76 [4]
0.125 cubic centimeters.
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3 years ago
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Convert 0.00049 to scientific Notation
BartSMP [9]
I think its 4.9 x 10-4
7 0
3 years ago
Read 2 more answers
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