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fredd [130]
3 years ago
7

FASST PLZZZ!! It’s really important!!!

Mathematics
2 answers:
marysya [2.9K]3 years ago
5 0

Answer:

The second, third and fifth are true.

Step-by-step explanation:

1) False, the radius is d÷2=8÷2=4 cm

2) True, C = 2×π×r = π×d = 8π

3) True, C = 8π = 8 × 22/7 = 176÷6 ≈ 25,14

4) False, C = 25,14 ≈ 25

5) True, C = 8π = 8×3,14 = 25,12

seraphim [82]3 years ago
4 0

Answer: B,C,E

Step-by-step explanation:

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Tcecarenko [31]
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3 years ago
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Colt1911 [192]

Answer:

B.In slope-intercept form, the slope is −79.These values are A and B, but with the opposite sign, so the slope of the line from the equation in standard form is −AB.

Step-by-step explanation:

A is being moved to the other side of the equation so it has to be negative and is multiplied by B since the y value has to be divided to equal the base of y not 9y but y.

7 0
3 years ago
What is the equivalent expression for 2/3÷4/5
Aliun [14]
2/3÷4/5
2/3*5/4
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3 years ago
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Consider a circle with a diameter of 5 centimeters. Which equation shows how the relationship between the circumference and the
mrs_skeptik [129]

Answer:

The equation which shows how the relationship between the circumference and the diameter of this circle is equivalent to π is π =  \frac{C}{5} ⇒ answer C

Step-by-step explanation:

In any circle there is a constant ratio between the circumference of the circle and its diameter

This constant ratio is called π

∵ The formula of the circumference of a circle is C = π d,

    where d is the diameter of the circle

- Divide both sides by d

∴ \frac{C}{d} = π

- Switch the two sides

∴ π =  \frac{C}{d}

∵ The diameter of the circle is 5 centimeters

∴ π =  \frac{C}{5}

The equation which shows how the relationship between the circumference and the diameter of this circle is equivalent to π is π =  \frac{C}{5}

5 0
3 years ago
Solve the equation<br> 121x ²+64=0
slava [35]
Hello there ^ _ ^

121x² + 64 = 0
121x² = 0 - 64
121x² = -64
x² = 64/121
Now take square root
x = +/-√-64/121


I hope this help!
4 0
3 years ago
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