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3 years ago

14

johanna receives a report that says her typing speed is 65 words per minute. she knows that she made 4 errors in 5-minutes test.

how many words did she type in 5 minutes?

2 answers:

Marina86 [1]3 years ago

8 0

Without the errors 325 words with 305

yarga [219]3 years ago

8 0

Answer:

325 words in 5 minutes

Step-by-step explanation:

65 times 5 = 325 words in 5 minutes

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While hovering near the top of Ribbon Falls in Yosemite National Park at 1600 feet, a

ella [17]

Answer:

a)The sunglasses hit the ground at t=0 seconds

b)The maximum height h(t) = 1600feet

Step-by-step explanation:

<u><em>Step(i):-</em></u>

Given that the polynomial function

h(t) = -16 t² + 1600 ...(i)

Differentiating equation (i) with respective to 't' , we get

$\frac{dh}{dt} = -16(2t)+0$

Equating zero

$\frac{dh}{dt} = 0$

⇒ -32t =0

⇒ t =0

The sunglasses hit the ground at t=0 seconds

<u><em>Step(ii):-</em></u>

Again differentiating with respective to 't', we get

$\frac{d^{2} h}{dt^{2} } = -32(1) = -32$

The maximum height at t=0

h(t) = -16 t² + 1600

h(t) = 1600feet

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3 years ago

A similar follow-up study is done on a sample of 25 meat-lovers who never eat vegetables, again randomly selected from the same

Alona [7]

Answer:

The lower limit is 75.04

The upper limit is 78.96

Step-by-step explanation:

From the question we are told that

The sample size is $n = 25$

The sample mean is $\= x = 77$

The standard deviation is $\sigma = 5$

Given that the confidence level is 95% then the level of significance is mathematically represented as

$\alpha = (100 - 95)\%$

$\alpha = 0.05$

The critical value for $\frac{\alpha }{2}$ obtained from the normal distribution table is

$Z_{\frac{\alpha }{2} } = 1.96$

Generally the margin of error is mathematically represented as

$E = Z_{\frac{\alpha }{2} } * \frac{\sigma }{\sqrt{n} }$

=> $E = 1.96* \frac{5 }{\sqrt{25} }$

=> $E = 1.96$

The 95% confidence interval is mathematically represented as

$\= x -E < \mu < \= x +E$

=> $77 - 1.96 < \mu < 77 + 1.96$

=> $75.04 < \mu < 78.96$

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igomit [66]

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3 years ago

Question 10 of 10

dangina [55]

Answer:

thanks for the points bye bye for now

Step-by-step explanation:

thanks for the points bye bye for now love u

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3 years ago

Maria has 7 gallons of water. Josh has 24 quarts of water. How many more cups of water does Maria have than Josh?

andriy [413]

Answer: Maria has 16 more cups of water than Josh

Step-by-step explanation:

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3 years ago

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