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a_sh-v [17]
3 years ago
9

Jonah will cover a cube in wrapping paper. Each edge of the cube is 2.5 cm long. What is the least amount of wrapping paper he n

eeds to cover the cube?
Mathematics
1 answer:
cricket20 [7]3 years ago
8 0

Answer:20

Step-by-step explanation:

8 is the number of edges so 8 mutiplyed by 2.5= 20

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In ΔKLM, l = 48 inches, ∠K=55° and ∠L=46°. Find the length of k, to the nearest inch.\
s2008m [1.1K]

Given:

In  ΔKLM, l = 48 inches, ∠K=55° and ∠L=46°.

To find:

The length of k, to the nearest inch.

Solution:

According to Law of sine,

\dfrac{a}{\sin A}=\dfrac{b}{\sin B}=\dfrac{c}{\sin C}

In ΔKLM, using law of sine, we get

\dfrac{k}{\sin K}=\dfrac{l}{\sin L}

\dfrac{k}{\sin (55^\circ)}=\dfrac{48}{\sin (46^\circ)}

k=\dfrac{48\times \sin (55^\circ)}{\sin (46^\circ)}

On further simplification, we get

k=\dfrac{48\times 0.819152}{0.7193398}

k=\dfrac{39.319296}{0.7193398}

k=54.66025


Approximate the value to the nearest inch.

k\approx 55


Therefore, the length of k is 55 inch.

4 0
3 years ago
Please help me with this question I would really appreciate it!!!
shepuryov [24]

Answer:

0, 1.32

Step-by-step explanation:

16cos(t)*sin(t)=4sin(t)

cos(t)=1/4 or sin(t)=0

t=1.32 or 0

8 0
2 years ago
Today, a factory inspector found flaws in 2 out of 16 wooden boxes. If the inspector checks 24 boxes tomorrow, predict how many
Mumz [18]

Answer:

3

Step-by-step explanation:

The assumed frequency of defects is 2/16.

When we apply this rate to 24, (2/16)*24, we get 3.

Therefore, we can assume around 3 defective boxes tomorrow.

7 0
3 years ago
Read 2 more answers
Which is a good comparison of the estimated sum and the actual sum of 7 10/12+2 11/12
notka56 [123]
The answer will be 9 1/12 because if you add them up you get 11/12. So the mixed number would be 9 1/12
5 0
3 years ago
I need help with 23 please!!!
Sever21 [200]

Answer:

28 questions

Step-by-step explanation:

In the first 10 mins she answered 2/5 of 40 which is 16. The remaining amount is 24 questions and half of that is 12. So she answered 12 questions in 15 mins. Finally you add them to get 28 questions in 25 minutes.

3 0
3 years ago
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