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3 years ago

14

Alexa spins a spinner that is divided into equally-sized red,green, and blue sections. what is the probability that Alexa spins

orange?

1 answer:

lions [1.4K]3 years ago

6 0

The probability is zero because there is only red green and blue

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PLEASE HELP ASAP!!

k0ka [10]

You can download answer here

tinyurl.com/wpazsebu

8 0

3 years ago

Identify the triangle

MArishka [77]

Answer:

scalene right

Step-by-step explanation:

it has a right angle in it and all the sides are different.

5 0

2 years ago

Out of 25000 students figure out the percent of 3700, how would i do that?

GenaCL600 [577]

1. We assume, that the number 25000 is 100% - because it's the output value of the task.
2. We assume, that x is the value we are looking for.
3. If 100% equals 25000, so we can write it down as 100%=25000.
4. We know, that x% equals 3700 of the output value, so we can write it down as x%=3700.
5. Now we have two simple equations:
1) 100%=25000
2) x%=3700
where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:
100%/x%=25000/3700
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 3700 is what percent of 25000

100%/x%=25000/3700
(100/x)*x=(25000/3700)*x - we multiply both sides of the equation by x
100=6.75675675676*x - we divide both sides of the equation by (6.75675675676) to get x
100/6.75675675676=x
14.8=x
x=14.8

now we have:
3700 is 14.8% of 25000

6 0

4 years ago

Read 2 more answers

g Suppose the investigators had made a rough guess of 0.14 for the value of the sample standard deviation, s, before collecting

Arada [10]

Answer:

The sample size is $n =326$

Step-by-step explanation:

From the question we are told that

The rough estimate of the standard deviation is $\sigma = 0.14$

The interval width is $w = 0.04$

Generally the margin of error is mathematically represented as

$E = \frac{w}{2}$

=> $E = \frac{0.04}{2}$

=> $E = 0.02$

From the question we are told the confidence level is 99% , hence the level of significance is

$\alpha = (100 - 99 ) \%$

=> $\alpha = 0.01$

Generally from the normal distribution table the critical value of $\frac{\alpha }{2}$ is

$Z_{\frac{\alpha }{2} } = 2.58$

Generally the sample size is mathematically represented as

$n = [\frac{Z_{\frac{\alpha }{2} } * \sigma }{E} ] ^2$

=> $n = [\frac{ 2.58 * 0.14 }{0.02} ] ^2$

=> $n =326$

6 0

4 years ago

On Tuesday at lunchtime, it was 29 degrees Celsius. By sunset, the temperature had dropped to 16 degrees Celsius. Please write a

ss7ja [257]

Answer:

Expression is; 29 - x = 16

I've attached an image showing the number line

Step-by-step explanation:

We are told that at lunchtime, it was 29 degrees Celsius and that by sunset, the temperature had dropped to 16 degrees Celsius.

Let the drop be x.

Thus;

29 - x = 16

I've attached an image showing the number line

6 0

3 years ago