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3 years ago

What angle do the minute and hour hands make at 4:30??

Mathematics

1 answer:

seraphim [82]3 years ago

3 0

Answer:

45°

Step-by-step explanation:

The hour hand makes a trip of 360° around the face of the clock in 12 hours, so in 4.5 hours will make an angle of ...

... (4.5/12)·360° = 135°

clockwise from straight up.

The minute hand makes that 360° turn in 1 hour, so in 30 minutes, it will be 180° clockwise from straight up.

The difference between the angles of the hands is ...

... 180° -135° = 45°

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A website developer wished to analyze the clicks per day on their newly updated website. Let the mean number of clicks per day b

beks73 [17]

Answer:

Null Hypothesis, $H_0$ : $\mu$ = 200 clicks a day

Alternate Hypothesis, $H_A$ : $\mu\neq$ 200 clicks a day

Step-by-step explanation:

We are given that a website developer wished to analyze the clicks per day on their newly updated website.

The website developer wants to know if the number of clicks per day is different than 200 clicks a day, on average.

Let $\mu$ = mean number of clicks per day.

So, Null Hypothesis, $H_0$ : $\mu$ = 200 clicks a day

Alternate Hypothesis, $H_A$ : $\mu\neq$ 200 clicks a day

Here, the null hypothesis states that the mean number of clicks per day is 200 clicks a day.

On the other hand, the alternate hypothesis states that the mean number of clicks per day is different than 200 clicks a day.

Hence, this is the correct null and alternative hypotheses.

4 0

3 years ago

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What is the slope, y-intercept and slope intercept equation to this graph. Plz help

fredd [130]

Answer:

y intercept is 3 and slope is 4/1

Step-by-step explanation:

3 0

2 years ago

Can u help me with this

Tanzania [10]

1. x^2 + x - 90

2. (x+10)(x-1)

3. x= -10 and 1

4 0

3 years ago

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Drag each equation to the model and situation it matches. (Picture) *I will give a brainliest

arlik [135]

Answer:

First model gets the equation: y = 2 . 2^z

Second model gets the equation: y = 4^z

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7 0

2 years ago

Cell Phone Company A charges $20 each month plus $0.03 per text. Cell Phone Company B charges $5 each month plus $0.07 per text.

Ymorist [56]

Cost of company A=monthlyfee+text=20+0.03t where t=number of texts
A=20+0.03t

company b is monthlyfee+texts=5+0.07t
B=5+0.07t

1.
c=20+0.03t
c=5+0.07t
using c for cost is confusing because we can't tell which is for which company

2.

equal, means the costs are equal so
20+0.03t=5+0.07t
minus 5 from both sides
15+0.03t=0.07t
minus 0.03t from both sides
15=0.04t
divide both sides by 0.04
375=t
the answer is 375 texts

4 0

2 years ago

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