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quester [9]
3 years ago
12

Find 4,5,6 Answer the rest for a thank you, and a brainliest.

Mathematics
2 answers:
zmey [24]3 years ago
4 0
Area of circle=\pi  r^{2}

Q4. Area of circle=\pi *12^{2}
                            =3.14*12^{2}
                            =452.16in^{2}   

Q5. Area of circle=\pi * ( \frac{6}{2} )^{2}
                            =3.14*3^{2}
                            =28.26in^{2}

Q6. Area of circle=\pi * (3 \frac{1}{2} )^{2}
                            =\frac{22}{7} * ( \frac{7}{2} )^{2}
                            =38.5in^{2}
Kay [80]3 years ago
4 0
4.  = 3.14 * 12^2 =  452.16
5. = 3.14 * 3^2 =  28.26
3. = 3.14 * 1.75^2 = 9.62
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Amiraneli [1.4K]

Answer:

volume of a cone = 1/3*(πr²h)

Step-by-step explanation:

6 0
2 years ago
I will mark you as brainliest if you're answer is correct​
GalinKa [24]

Answer:

perimeter = 28.13 cm

Step-by-step explanation:

Calculate the length of a line drawn from A to C.

sin 85 = b/8, b = 7.97

cos 85 = c/8, c = 0.697

AC² =7.97² + (6 + 0.697)² = 63.52 + 44.85 = 108.37

AC = 10.41

Now you have a right triangle ADC with a known hypotenuse and  one leg.

Using the Pythagorean theorem:

DC² = 10.41² - 5²

DC² = 108.37 - 25 = 83.37

DC = 9.13 cm

perimeter = 5 + 6 + 8 + 9.13 = 28.13 cm

8 0
3 years ago
What fraction is closest in value to 0.39?<br> 1/3, 2/5, 3/8, or 9/25?
Afina-wow [57]
1/3 (0.333,,,) is 0.05666... away from 0.39 .

2/5 (0.4) is 0.01 away .

3.8 (0.375) is 0.015 away .

9/25 (0.36) is 0.3 away .

2/5 is the closest one.
4 0
3 years ago
Read 2 more answers
A bag of marbles contains 1 green, 5 red, and 2 blue. Find the probability of picking a red marble, putting it back in the
sleet_krkn [62]

Answer:

Red = 25/32768

Blue = 4/64

Step-by-step explanation:

Green Marbles = 1

Red Marbles = 5

Blue Marbles = 2

Probability of picking a red marble = 5/8 x 5/8 x 5/8 x 5/8 x 5/8 = 25/32768

Probability of picking a blue marble = 2/8 x 2/8 = 4/64

6 0
3 years ago
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blondinia [14]
Think it’s A just because it’s actually decaying rather than being from decayed to up like B, C, and D( I don’t know how to explain it, sorry) I’m not sure however !
7 0
3 years ago
Read 2 more answers
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