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irinina [24]
3 years ago
12

What is the area of a circle with a diameter of 16 m?

Mathematics
1 answer:
miss Akunina [59]3 years ago
4 0

Answer:

200.96 m2

Step-by-step explanation:

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A driver averages 42 miles per hour and took 15 hours to travel between two cities what is the distance between the two cities
pishuonlain [190]

Answer:

The distence bettween the two cities is 630miles

Step-by-step explanation:

So you take 42 and multiply it by 15 and you get 630.

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If something is $380, then the sellers mark up the price by 84%, what is the final sale price??
nadya68 [22]
699.2 is correct answer
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The angles in a triangle are in the ratio 1:2:3. Show that this triangle is a right-angled triangle. The hypotenuse of the trian
natita [175]

Answer:

see explanation

Step-by-step explanation:

(a)

Sum the parts of the ratio , 1 + 2 + 3 = 6 parts

Divide sum of angles in a triangle by 6 to find the value of one part of the ratio.

180° ÷ 6 = 30° ← value of 1 part of the ratio

2 parts = 2 × 30° = 60°

3 parts = 3 × 30° = 90°

Since there is an angle of 90° then the triangle is right.

(b)

The shortest side is the side opposite the smallest angle of 30°

Using the sine ratio and the exact value

sin30° = \frac{1}{2} , then

sin30° = \frac{opp}{hyp} = \frac{opp}{19} = \frac{1}{2} ( cross- multiply )

2 opp = 19 ( divide both sides by 2 )

opp = 9,5

Shortest side in the triangle is 9.5 cm

6 0
3 years ago
Find the value of x.
Rashid [163]

Answer:

99

Step-by-step explanation:

That quadrilateral equals to 360. So i had to add the numbers which equal 261. Then i did 360-261=99.

6 0
3 years ago
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What's the mass of one iron atom in standard and scientific notation
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Check the attached file for the answer.

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