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3 years ago

Who can guess what time it is for me

Mathematics

2 answers:

qaws [65]3 years ago

7 0

Answer:

6:29

Step-by-step explanation:

Rainbow [258]3 years ago

3 0

I’ll try it don’t know if I will get it right

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Pls help i need it for my quizzzzzzzzz

djverab [1.8K]

Answer:

905.14 m³

Step-by-step explanation:

$Volume \: of \: sphere \\ = > \frac{4}{3} \pi {r}^{3} \\ = > \frac{4}{3} \times \pi \times {(6m)}^{3} \\ = > \frac{4}{3} \times \pi \times 216 {m}^{3} \\ = > 4 \times \pi \times 72 {m}^{3} \\ = > 4 \times \frac{22}{7} \times 72 {m}^{3} \\ = > \frac{6336}{7} {m}^{3} \\ = > 905.14 {m}^{3}$

8 0

2 years ago

Read 2 more answers

A 9-year-old girl did a science fair experiment in which she tested professional touch therapists to see if they could sense he

Orlov [11]

Answer:

We conclude that the the touch therapists does not use a method equivalent to random guesses.

Yes, the results suggest that touch therapists are effective.

Step-by-step explanation:

We are given that in a 9-year-old girl did a science fair experiment in which she tested professional touch therapists to see if they could sense her energy field.

Among 264264 trials, the touch therapists were correct 105105 times.

Let p = proportion that touch therapists uses a random guess method.

Here, random guess means; p = 50%

So, Null Hypothesis, $H_0$ : p = 50% {means that the touch therapists use a method equivalent to random guesses}

Alternate Hypothesis, $H_A$ : p $\neq$ 50% {means that the touch therapists does not use a method equivalent to random guesses}

The test statistics that would be used here One-sample z proportion statistics;

T.S. = $\frac{\hat p-p}{\sqrt{\frac{\hat p(1-\hat p)}{n} } }$ ~ N(0,1)

where, $\hat p$ = sample proportion of touch therapists were correct = $\frac{105}{264}$ = 0.39

n = sample of trials = 264

So, test statistics = $\frac{\frac{105}{264} -0.50}{\sqrt{\frac{\frac{105}{264}(1-\frac{105}{264})}{264} } }$

= -3.395

The value of z test statistics is -3.395.

Now, at 0.05 significance level the z table gives critical value of -1.96 and 1.96 for two-tailed test. Since our test statistics does not lie within the range of critical values of z, so we have sufficient evidence to reject our null hypothesis as it will in the rejection region due to which we reject our null hypothesis.

Therefore, we conclude that the the touch therapists does not use a method equivalent to random guesses.

Yes, the results suggest that touch therapists are effective.

3 0

3 years ago

26. The volumes of two similar solids are 1,728 m3 and 343 m3. The surface area of the larger solid is 576 m2. What is the surfa

zhuklara [117]

Where is the multiply chocie answer

7 0

3 years ago

Hippalectryon

ryzh [129]

Checking answer A:
distance from U to V = -2-(-11)=9
distance from U to W =7-(-2)=9 -> same distance !

checking answer B:
distance U-V : -2-(-8)=6
U-W : -2-(-6)=4 -> not the same distance

answer C :
U-V : -2-(-6)=4
U-W : 6-(-2)=8 -> not the same distance

answer D :
U-V : 0-(-2)=2
U-W : 2-(-2)=4 -> not the same distance

Conclusion : answer A

7 0

3 years ago

Read 2 more answers

An office building is on fire, so the firefighters must use a ladder to get inside the burning building before too much damage i

insens350 [35]

I had th esame qustion but icant fin dthe answer

6 0

3 years ago