2 years ago

A wire is bent into semicircles. How long is the wire to the neared hundredth? The diameter is 32 cm

Mathematics

1 answer:

docker41 [41]2 years ago

5 0

Answer:

200.96

Step-by-step explanation:

2πr is the perimeter or circumference of a circle

diameter is 32cm so radius=16cm

2*3.14*16=100.48cm is long

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Sholpan [36]

With some simplification,

cos⁻¹(x) - 5 cos⁻¹(x) - π/3 = 2π/3

becomes

-4 cos⁻¹(x) = π

cos⁻¹(x) = -π/4

However, the inverse cosine function has a range of 0 ≤ cos⁻¹(x) ≤ π, so there are no solutions to this equation.

4 0

2 years ago

Which section of the function is decreasing?

Allisa [31]

Answer:

Step-by-step explanation:

A section is decreasing

8 0

2 years ago

Need help with number 6

posledela

Answer:

(3)

Step-by-step explanation:

the sum of n and 5 is (n + 5), then multiply by 3 gives

3(n + 5)

The result is at least 17 which means it must be greater than or equal to 17

3(n + 5) ≥ 17

7 0

3 years ago

What is the variable y in w= x y/z?

AleksAgata [21]

Multiply by z to get
wz = xy
divide by x
y = wz/x

8 0

2 years ago

The probability that a region prone to hurricanes will be hit by a hurricane in any single year is 0.1 and independent of other

ludmilkaskok [199]

Answer:

0.40951

Step-by-step explanation:

P(none in five years) = 1 - 0.1 = 0.9

P(at least one) = 1 - P(none in five years)

= 1 - $0.9^{5}$

= 1 - 0.59049

= 0.40951

So the probability of a hurricane hit at least once in the next 5 years is 0.40951

8 0

3 years ago