Answer:

**Answer:**

Z = 0.8528 < 2.576

**The calculated value Z = 0.8528 < 2.576 at 0.01 level of significance**

**Null hypothesis is Accepted at 0.01 level of significance.**

**There is no significance difference between the means**

**Step-by-step explanation****:**

**Given data **

**size of the sample 'n' = 11**

**mean of the sample x⁻ =20.5**

**Mean of the Population μ = 18.7**

**Standard deviation of Population σ = 7**

**Test statistic**

Z = 0.8528

**critical Value**

**The calculated value Z = 0.8528 < 2.576 at 0.01 level of significance**

**Null hypothesis is Accepted at 0.01 level of significance.**

**There is no significance difference between the means**

Answer:

**Answer:Answer:**

**B. 18.7 ± 9.7**

**Step-by-step explanation:**

If your the bus driver and you have 30 kids on the bus. But the first stop 10 kids get off the bus how old is the bus driver?

The height of a cylinder is decreasing at a constant rate of 1 centimeters per minute, and the volume is decreasing at a rate of 2341 cubic centimeters per minute. At the instant when the height of the cylinder is 1010 centimeters and the volume is 577 cubic centimeters, what is the rate of change of the radius? The volume of a cylinder can be found with the equation V=pi r^2 h. Round your answer to three decimal places.

Ordered pair of -x+3y=9

Which correlation coefficient corresponds to the best-fit line that most closely models it’s set of data. A. -0.87, B. -0.15. C. 0.13. D. 0.84

James is 10 feet below sea level if he increases his elevation by 30 feet what is his location?

The height of a cylinder is decreasing at a constant rate of 1 centimeters per minute, and the volume is decreasing at a rate of 2341 cubic centimeters per minute. At the instant when the height of the cylinder is 1010 centimeters and the volume is 577 cubic centimeters, what is the rate of change of the radius? The volume of a cylinder can be found with the equation V=pi r^2 h. Round your answer to three decimal places.

Ordered pair of -x+3y=9

Which correlation coefficient corresponds to the best-fit line that most closely models it’s set of data. A. -0.87, B. -0.15. C. 0.13. D. 0.84

James is 10 feet below sea level if he increases his elevation by 30 feet what is his location?

**Answer:**

50% of the scores were above 75

**Step-by-step explanation:**

**Problems of normally distributed(bell-shaped) samples are solved using the z-score formula.**

In a set with mean and standard deviation , the zscore of a measure X is given by:

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

**In this problem, we have that:**

**What percent of the scores were above 75?**

This is 1 subtracted by the pvalue of Z when X = 75. So

has a pvalue of 0.5

1 - 0.5 = 0.5

50% of the scores were above 75

Hello,

The correct answer is 3/4

Because 3 × 4 = 12

Hope this helps!!!! Happy Holidays!!!! (:

The puppy is 3/4 of a pound.

**Answer:**

uhh hope this helps

**Step-by-step explanation:**

A Diginacci sequence is created as follows.

• The ﬁrst two terms are any positive whole numbers.

• Each of the remaining terms is the sum of the digits of the previous

two terms.

For example, starting with 5 and 8 the Diginacci sequence is

5, 8, 13, 12, 7, 10,. . .

The calculations for this example are

5 + 8 = 13, 8 + 1 + 3 = 12, 1+ 3 +1+ 2 = 7, 1 + 2 + 7 = 10.

a) List the ﬁrst 26 terms of the Diginacci sequence above.

b) Find, with explanation, two starting terms for a Diginacci sequence

so that its 2021st term is 11.

c) Find, with explanation, a Diginacci sequence that has no term equal

to 11.

d) Find, with explanation, a sequence with two diﬀerent starting terms

which contains ﬁve consecutive terms that are even and not all identical

Both 2 and 3 is correct.

-150+(-45)= -195

Negative since it’s deeper

this might be yo answer im not sure

i hope this helped u tho

Answer:

We have the three angles of a triangle as an equation, so we can add them together, and they equal 180.

So:

4x+10+12x-6+3x+5= 19x+9=180

19x=171 ... so: x= 171/19 = 9.

So ABC = 102 .. Obtuse angle

BAC = 46 .. Acute angle

BCA = 32 .. Acute Angle

Edit:

Angle 1 = 180 - BAC = 180 - 46 = 134

Angle 2= 180 - ABC = 180 - 102 = 78

**Answer:**

inf(A) does not exist.

**Step-by-step explanation:**

As per the question:

We need to prove that A is closed under multiplication,

If for every

Proof:

Suppose, x, y

Since, both x and y are real numbers thus xy is also a real number.

Now, consider another set B such that:

B = {xy} has only a single element 'xy' and thus [B] is bounded.

Since, [A] represents the union of all the bounded sets, therefore,

⇒ xy

Therefore, from x, y , we have xy .

Hence, set a is closed under multiplication.

Now, to prove whether inf(A) exist or not

Proof:

Let us assume that inf(A) exist and inf(A) =

Thus is also a real number.

Let C be another set such that

C = { - 1}

Now, we know that C is a bounded set thus { - 1} is also an element of A

Also, we know:

inf(A) =

Therefore,

But

is an element of A and

This is contradictory, thus inf(A) does not exist.

Hence, proved.