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julia-pushkina [17]

3 years ago

13

Two neon lights are turned on at the same time one blinks every 5 seconds and the other blinks every 8 seconds when will both bl

ink at the same time

2 answers:

Natasha2012 [34]3 years ago

6 0

Answer: 40 seconds

Step-by-step explanation:

They have that multiple in common

s344n2d4d5 [400]3 years ago

5 0

Just find the lowest common multiple of 5 and 8.

So:

LCM [5, 8] = 40

At 40 seconds, both lights will blink at the same time.

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Given sin x = 4/5 and cos = 3/5<br> What is the ratio for tan x?

Tanzania [10]

Answer:

4/3

Step-by-step explanation:

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4 years ago

Please answer number 8. I need help, I don’t understand.

Bond [772]

Answer:

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Step-by-step explanation:

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2 years ago

Margin of error: 0.04; confidence level: 95%; from a prior study, bold p with bold overparenthesis on top is estimated by the de

GrogVix [38]

Answer: 235

Step-by-step explanation:

The formula to calculate the sample size :-

$n=(\hat{p}(1-\hat{p}))(\dfrac{z_{\alpha/2}}{E})^2$

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Significance level : $\alpha=1-0.95=0.05$

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6 0

3 years ago

Nico practiced the drums for 1.5 fewer hours than he practiced the piano. If nico practiced for 4 hours, how many hours did he p

dedylja [7]

Answer: I think it might be 3.5 hours

Step-by-step explanation: 4 - 1.5 = 3.5

I'm not 100% sure but hope this helps!

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3 years ago

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Answer:

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Step-by-step explanation:

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7 0

3 years ago

Read 2 more answers