2 years ago

Hey guys please help anything would be helpful at least try

1 answer:

8 0

I’m in grade 12 and this has me confused lol the wording is weird but my best guess is 180° around point H and then 2 up 5 right

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Answer:

d. 19

Step-by-step explanation:

Degrees of freedom is the number is the number of value which is used in the final calculation. It calculate as n-1, where n is the sample size. The degrees of freedom for the given scenario is 19. The sample size is 20 so the degrees of freedom is 1 less which will be 19.

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3 years ago

Solve 5|x – 4| ≥ –10

Nataly_w [17]

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3 years ago

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Anna71 [15]

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Step-by-step explanation:

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2 years ago

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3 years ago

A thread is being pulled off a spool at the rate of 40 cm per second. Find the radius of the spool

murzikaleks [220]

Answer:

r = 0.0424 cm (3sf)

Step-by-step explanation:

it makes 150 rev/sec

1 revolution = 1 circumference = 2pi*r

so every second the spool goes through 2*pi*r*150 of distance

we know that the rate of pulling is 40cm/sec

so 2pi*r*150 = 40

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check: Circumference is 2pi*r = 0.2666

now multiply by 150rev/sec = 40 cm/sec

3 0

2 years ago