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adoni [48]
3 years ago
11

hat is the lateral area of this regular octagonal pyramid? 149.3 cm² 182.9 cm² 211.2 cm² 298.7 cm² The figure shows a regular oc

tagonal pyramid. A dashed line segment is shown perpendicular to a base edge with its second endpoint being the center of the base and has a length of 8 centimeters. A second dashed line segment has one endpoint at the center of the base and the second endpoint at the vertex of the pyramid and has a length of 8 centimeters. A base edge has a length of 6.6 centimeters.
Mathematics
2 answers:
alukav5142 [94]3 years ago
4 0

Answer:

The answer is 298.7

Step-by-step explanation:

dem82 [27]3 years ago
3 0

Answer:

Hello! The correct answer is 298.7 cm^{2}

Step-by-step explanation:

I am just confirming!

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Kelly and Daniel wrote the following proofs to prove that vertical angles are congruent. who is correct?
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There are 68 apples in the school kitchen. The school needs 130 apples for all the students in grade 2. The school gets two boxe
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3 years ago
A flying carpet flies 2.4 miles with the wind in the same amount of time it flies 1.4 miles against the wind. The wind speed is
Ainat [17]

Answer:

15.2~mph

Step-by-step explanation:

Let the time flown by the flying carpet be t. Then, we have that (2.4)/t=(1.4)/t+2*4.

We multiply both sides of the equation by t to get 2.4=1.4+8t.

We subtract 1.4 from both sides to get 1=8t.

We divide both sides of the equation by t=1/8.

We know that the speed of the flying carpet in still wind is the average of the rates of the speed of the flying carpet with the wind and against the wind.

The speed with wind is (2.4)/(1/8)=19.2mph.

The speed against wind is (1.4)/(1/8)=11.2mph.

The speed in still wind is (19.2+11.2)/2=(30.4)/2=15.2.

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4 0
3 years ago
Write the expanded form of the decimal 0.082¯ using powers of 10
Softa [21]

Answer:

0.082 = 8.2× 10^-2

Step-by-step explanation:

Given the decimal number 0.082, the expanded form using the power of 10 can be gotten by writing the decimal number in standard format(writing as a multiple of 10).

To do that we will shift the decimal point to the front up to the front of digit 8. This shows that the decimal point will be shifted 2times to the front. Since of is shifted 2times to the front, our power of 10 will be -2.

0.082 = 8.2× 10^-2

This gives the required answer.

Note that, the power of 10 is positive when decimals are shifted to the back and negative when shifted to the front(in this case).

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3 years ago
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