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julia-pushkina [17]
3 years ago
11

According to a study done by De Anza students, the height for Asian adult males is normally distributed with an average of 66 in

ches and a standard deviation of 2.5 inches. Suppose one Asian adult male is randomly chosen. Let X = height of the individual. a. X ~ __N___(_66____,__2.5___) b. Find the probability that the person is between 65 and 69 inches. Include a sketch of the graph, and write a probability statement.
Mathematics
1 answer:
Crazy boy [7]3 years ago
7 0

Answer:

0.54035

Step-by-step explanation:

Given that :

Mean, m = 66 inches

Standard deviation, s = 2.5 inches

P(65 < X < 69)

P(X < 69) - P(X < 65)

((69 - 66) / 2.5) - ((65 - 66) / 2.5)

P(Z <(3/ 2.5)) - P(Z <(-1 / 2.5))

P(Z < 1.2) - P(Z < - 0.4)

0.88493 - 0.34458

= 0.54035

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On a board measuring 1x100, each square is numbered from
max2010maxim [7]

Answer:

97

Step-by-step explanation:

Given the following conditions :

board measuring 1x100, each square is numbered from 1 to 100

Three colors are used to paint the squares from left to right in the sequence :

one blue, two reds and three green squares in a repeated pattern.

What is the highest numbered square that is painted blue?

The sequence of painting is repeated after :

(1 + 2 + 3) = 6 successive squares

Since the number of squares = 100

Maximum complete repetition possible :

100 / 6 = 16 remainder 4

Hence 16 * 6 = 96 (the highest complete sequence terminates on the square numbered 96)

On the 97th square, another sequence begins which is a blue and the 100th square is painted the first of the 3 green colors.

Hence, the highest numbered square that is painted blue is 97

5 0
3 years ago
Read 2 more answers
In parallelogram ABCD, diagonals AC and BD intersect at point E, AE = x^2 - 12, and CE = 4x What is AC?
Thepotemich [5.8K]

The length of the AC is x^2  + 4x  - 12.

<h3>What is a parallelogram?</h3>

That quadrilateral in which opposite sides are parallel is called a parallelogram.

Thus, a parallelogram is always a quadrilateral but a quadrilateral can or cannot be a parallelogram.

Given :

In Parallelogram ABCD, diagonals AC and BD intersect at point E.

such that

AE = x^2 - 12,

CE = 4x

We know that the diagonal of a parallelogram bisect each other.

x^2 - 12 = 4x

x^2  - 4x  - 12= 0

(x-6)(x-2) = 0

Hence, the value of x = 6, 2.

AC = AE + CE = x^2  + 4x  - 12.

The length of the AC is x^2  + 4x  - 12.

Learn more about Parallelogram ;

brainly.com/question/12871564

#SPJ1

6 0
2 years ago
Which is the better price 17% off 35 or 12% off 32 Explain
ohaa [14]

The better price is 12%x32=3.84 because is less than 5.95.

3 0
3 years ago
A ship is stationary at sea. A tugboat is 28 km away at a bearing of 210°, and a yacht is 24 km from the tugboat at a bearing of
3241004551 [841]

Answer:

The distance between the yacht from the ship is about 33.6 km.

Step-by-step explanation:

The diagram is attached below.

Point A is the shipe, Point B is the tugboat, and Point C is the yacht.

Since the tugboat is 28 km away, and the scale being used is 1 cm : 4 km, the tugboat is 7 cm away from the ship at a 210° bearing on the diagram.

Likewise, the yacht is 6 cm away from the tugboat at a 210° bearing.

To find the distance between the yacht to the ship, we need to

yacht to the ship, we need to determine the value of x.

To do so, we can use the Law of Cosines:

b²a² + c²2ac cos(B) =

First, we need to determine ZB.

A has a bearing of 210°. 180° is covered by QI and IV. So, the small angle in QIII is 30°.

By Alternate Interior Angles, the angle in QI (inside the triangle) of Point B must also be 30°.

And since Point B has a bearing of 310°, 270° is covered in total by QI, QIV, and QIII. So, 40° is left in QII.

Therefore, 50° is the measure of the angle in QIII within the triangle of Point B.

Thus, ZB measures 50° + 30° = 80°.

So, ZB measures 80°. We also know that a = 6 and c= 7. Substitute:

b² = (6)² + (7)² - 2(6)(7) cos(80)

Simplify and take the square root of both sides. So:

b = √85-84 cos(80)

Approximate using a calculator:

b = 8.3912... ≈ 8.39 cm

Since 1 cm: 4km, to find the distance in km, we simply need to multiply by four. So:

⇒b= 4(8.3912...) = 33.5651 ≈

33.6 km

The distance between the yacht from the ship is about 33.6 km.

Step-by-step explanation:

hope it helps you itz admirer

4 0
2 years ago
The sum of 6 consecutive even numbers is 270
____ [38]
Let's make x the smallest number. Since they are even numbers, it must be increased by 2 each time.

x + x +2 + x + 4 + x + 6 + x + 8 + x + 10 = 270
6x + 30 = 270
6x = 240
x = 40

The numbers should be 40, 42, 44, 46, 48, and 50. Hope this helps!
5 0
4 years ago
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