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3 years ago

Please answer ✨✨✨dbdhd

Mathematics

1 answer:

blagie [28]3 years ago

5 0

thank you for being given the chance to answer the question. I don't have any idea

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If points c, d, and e are on a line and cd =20 and ce = 32 what are the possible values of de

vivado [14]

In this question it is given that the values of CD and CE are 20 and 32 respectively.

Since the length of CE is greater then of CD, so C and D could not be the end points.

Therefore, either D and E are the endpoints or C and E are the endpoints.

If D and E are the endpoints, then DE is the sum of 20 and 32 which is 52.

And if C and E are the endpoints, then DE is the difference of CE and CD that is 12.

So the possible values of DE are 12 and 52.

6 0

3 years ago

The waiting times at a certain bank are normally distributed with a mean waiting time of 3.7 minutes and a standard deviation of

muminat

Answer:

From the given options we can say the correct answer is d.) 6.3

Step-by-step explanation:

The waiting times at the bank are given to be normally distributed.

The mean of the waiting time is given as = 3.7 minutes

The given standard deviation is = 1.4 minutes

It is required to find the waiting time at the 97th percentile.

So we are required to find the time which can be said to be the waiting time which occurs with 97 % probability.

Let the time required be designated as y.

Therefore we can write p(X < y) = 0.97 (where 0.97 means the 97th percentile)

This is a left tailed test.

Using the formula from MSEXCEL to find y we get

y = NORMINV(0.97, 3.7, 1.4) = 6.333.

The other approach would to find the Z value corresponding to the probability value from the Z Table

The Z value for a probability of 0.97 gives us Z = 1.881 .

Therefore $\frac{y - 3.7}{1.4} = 1.881$ . Therefore y = (1.881 × 1.4) + 3.7 = 6.33

Therefore from the given options we can say the correct answer is d.) 6.3

7 0

3 years ago

Question 1 of 10

boyakko [2]

Answer:

i feel like the answer is d srry if im wrong

Step-by-step explanation:

4 0

3 years ago

Show all the stepsx: 3, 9, 13, 20y: 9, 27, 39, 60State whether the relationship between the variables in the table is a direct v

a_sh-v [17]

By looking at the table, we can see that the y values are equal to the x values multiplied by 3.

3x = 3*3 = 9

3x =3*9 = 27

3x=3*13=39

3x= 3*20= 60

So, it is a direct variation and the function is y=3x

6 0

1 year ago

Which of the following fractions is an improper fraction?<br> 2/3<br> 6/11<br> 21/25<br> 8/7

kirza4 [7]

Answer:

8/7

Step-by-step explanation:

The Numerator is bigger than the denominator which in turn can be converted to a mixed fraction.

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3 years ago