MATHEMATICS COLLEGE

How do i write 400.004 in unit form?

Answers

Answer 1
Answer:

Answer:

4 hundreds and point 4 thousandths

Step-by-step explanation:

You have to write a number using place value units.

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The health of the bear population in yellowstone national park is monitored by periodic measurements. a sample of 54 bears has a mean weight of 182.9 lb. assuming the standard deviation is known to be 121.8lb find a 99% confidence intreval estimate

Answers

The 99% confidence interval will be found as follows:
x_bar +/- z(σ/√n)
where
z- z-score
σ-sigma
n=sample size
thus from the information given we shall have:
182.9+/-2.58(121.8/√54)
=182.9+/-42.7632
=225.6632 or 140.1368

The hypotenuse of the triangle shown below is 12 inches. What is the lengthof a side in inches?

Answers

Can you send a picture of the triangle ?

What is 9x-2?????????????

Answers

Answer:

If you mean 9 x -2 it's -18

Step-by-step explanation:

Using a ruler, you measure the length of a rectangle to be 12.75 cm and the width to be 3.64 cm. Calculate the area of this rectangle (show work), reporting your answer to the correct number of significant figures.

Answers

The area of rectangle with length 12.75 cm and the width 3.64 cm with 4 significant figures is 46.41 cm².

What is a quadrilateral?

quadrilateral is a plane mathematical closed figure consist of four side and four edges. There are 7 types of quadrilateral.

Trapezium, Parallelogram, Rectangle, Rhombus, Square, Kite.

Here, it is given that :

the lengthl of a rectangle is = 12.75 cm

the breadthb of a rectangle is = 3.64 cm

Now, let us calculate the area of this rectangle using area formula :

area of rectangle  A = length x breadth

                              A = 12.75 x 3.64

                              A = 46.41 cm²

Therefore, the area of rectangle with length 12.75 cm and the width 3.64 cm with 4 significant figures is 46.41 cm².

check and know more about quadrilateral here :

brainly.com/question/18331758

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Answer:

3200

Step-by-step explanation:

The number of potholes on 30 randomly selected 1 mile stretch of highways in the City of Chicago is given below 2, 7, 4, 7, 2, 7, 2, 2, 2, 3, 4, 3, 1, 2, 3, 2, 1, 4, 2, 2, 5, 2, 3, 4, 4, 1, 7, 6, 3, 5 (a) Complete the frequency distribution for the data. Make sure to enter your answers for the relative frequency as decimals, rounded to the nearest tenth.

Answers

Answer:

Kindly check explanation

Step-by-step explanation:

Given the data:

2, 7, 4, 7, 2, 7, 2, 2, 2, 3, 4, 3, 1, 2, 3, 2, 1, 4, 2, 2, 5, 2, 3, 4, 4, 1, 7, 6, 3, 5

Value __ Frequency ___ relative frequency

1 ___ 3 ______ 3/30 ____ 0.1

2 __ 10 ______ 10/30 ___ 0.3

3 __ 5 _______ 5/30____0.2

4 __ 5 ________ 5 / 30 __0.2

5 __ 2 _________ 2/30 __ 0.1

6 __ 1 _________ 1/30 ___0.0

7 __ 4 ________ 4/30 ___0.1

Kindly note that relative frequencies were rounded to the nearest tenth.

Let Z={a,c,{a,b}}. What is |Z|?What is the power set of Z?

Which of the following are true?

1. {a,c} ⊆ Z

2. a ∈ Z

3. {c} ⊆ Z

4. {c} ∈ Z

5. b ∈ Z

6. {a,b} ∈ Z

Answers

Z=\{a,c,\{a,b\}\}

\boxed{|Z|=3} (treat \{a,b\} as one element of Z)

The power set of Z is

\boxed{2^Z=\bigg\{\{\},\{a\},\{c\},\big\{\{a,b\}\big\},\{a,c\},\big\{a,\{a,b\}\big\},\big\{c,\{a,b\}\big\},\big\{a,c,\{a,b\}\big\}\bigg\}}

1. \{a,c\}\subseteq Z is true because both a\in Z and c\in Z.

2. a\in Z is true.

3. \{c\}\subseteq Z is true (same reason as part 1).

4. \{c\}\in Z is false because Z does not contain the set \{c\}, rather just the element c itself.

5. b\in Z is false because the element b on its own simply is not in Z. That b\in\{a,b\} does not mean b\in Z, but that b belongs to a subset of Z.

6. \{a,b\}\in Z is true.
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A paint manufacturer made a modification to a paint to speed up its drying time. Independent simple random samples of 11 cans of type A (the original paint) and 9 cans of type B (the modified paint) were selected and applied to similar surfaces. The drying times, in hours, were recorded. The following 98% confidence interval was obtained for μ1 - μ2, the difference between the mean drying time for paint cans of type A and the mean drying time for paint cans of type B: 4.90 hrs < μ1 - μ2 < 17.50 hrs What does the confidence interval suggest about the population means?A. The confidence interval includes 0 which suggests that the two population means might be equal. There​ doesn't appear to be a significant difference between the mean drying time for paint type A and the mean drying time for paint type B. The modification does not seem to be effective in reducing drying times. B. The confidence interval includes only positive values which suggests that the mean drying time for paint type A is greater than the mean drying time for paint type B. The modification seems to be effective in reducing drying times. C. The confidence interval includes only positive values which suggests that the two population means might be equal. There​ doesn't appear to be a significant difference between the mean drying time for paint type A and the mean drying time for paint type B. The modification does not seem to be effective in reducing drying times. D. The confidence interval includes only positive values which suggests that the mean drying time for paint type A is smaller than the mean drying time for paint type B. The modification does not seem to be effective in reducing drying times.