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lyudmila [28]
2 years ago
11

A circle’s circumference is approximately 76 cm.

Mathematics
1 answer:
olya-2409 [2.1K]2 years ago
8 0

Answer: Area= 459.73cm^2

Step-by-step explanation: Circumference of a circle is 2πr

76=2×3.14×r

r= 76÷(6×3.14)

r=12.10

Area of a circle= πr^2

Area= 3.14×(12.10)^2

Area= 456.73cm^2

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6)The experimental probability is 39%.(39/100(100)).

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3 years ago
Graph y=-(4)<br> X PLS HELP
mario62 [17]

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Step-by-step explanation:

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2 years ago
If tan a = 9/40<br>use trigonometric identities to find the values of sin a and cos a.​
Sindrei [870]

Answer:

see explanation

Step-by-step explanation:

Given

tan a = \frac{9}{40} = \frac{opposite}{adjacent}

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4 0
2 years ago
Information on a packet of seeds claims that 93% of them will germinate. Of the 200 seeds that I planted, only 175 germinated. (
Anvisha [2.4K]

Answer:

We reject H₀

we accept Hₐ seeds in the packet would germinate smaller than 93%

Step-by-step explanation:

Test of proportions

One tail-test  (left side)

93 %   =  0.93

p₀  =  0,93

1.- Hypothesis

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5 0
3 years ago
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