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1 year ago

Identify next three numbers in this sequence: 2, 6, 3, 9, 6, 18, 15…

Mathematics

2 answers:

Colt1911 [192]1 year ago

5 0

Jam is djndkenzie sjwnxjezi 29 djdjdj 38383

Pani-rosa [81]1 year ago

4 0

45,42,126 it’s times 3 -3 so every time yu times yu minus that number by 3

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the length of a sandbox is three feet longer than it’s width. Write the expression that would represent the area of the sandbox.

Rashid [163]

Part A : D.)

Part B : Length of the sandbox is 10 feet.

Step-by-step explanation:

Given,

Perimeter = 29 ft

We need to find the equation for the perimeter and also the length of the sandbox.

Solution,

Let the width of the sandbox be 'w'.

Now as per question said;

The length of the sandbox is 1 foot longer than twice the width of the sandbox.

So we can say that;

Length =

Now we know that the perimeter is equal to the sum of twice of length and width.

framing in equation form, we get;

Perimeter =

we have given the perimeter, so on substituting the value, we get;

Hence The equation used to find the width is .

Now we solve for 'w'.

Applying distributive property, we get;

Subtracting both side by '2' we get

Dividing both side by 6 we get;

Width of the sandbox = 4.5 ft

Length of the sandbox =

Hence Length of the sandbox is 10 feet.

6 0

2 years ago

The manufacturing of a ball bearing is normally distributed with a mean diameter of 22 millimeters and a standard deviation of .

Misha Larkins [42]

Answer:

0.1507 or 15.07%.

Step-by-step explanation:

We have been given that the manufacturing of a ball bearing is normally distributed with a mean diameter of 22 millimeters and a standard deviation of .016 millimeters. To be acceptable the diameter needs to be between 21.97 and 22.03 millimeters.

First of all, we will find z-scores for data points using z-score formula.

$z=\frac{x-\mu}{\sigma}$ , where,

z = z-score,

x = Sample score,

$\mu$ = Mean,

$\sigma$ = Standard deviation.

$z=\frac{21.97-22}{0.016}$

$z=\frac{-0.03}{0.016}$

$z=-0.1875$

Let us find z-score of data point 22.03.

$z=\frac{22.03-22}{0.016}$

$z=\frac{0.03}{0.016}$

$z=0.1875$

Using probability formula $P(a$ , we will get:

$P(-0.1875$

Therefore, the probability that a randomly selected ball bearing will be acceptable is 0.1507 or 15.07%.

6 0

2 years ago

Biologists tagged 139 fish in a lake on January 1, On February 1, they returned and collected a random sample

Bogdan [553]

Answer:

417 fish

Step-by-step explanation:

139/(10/30)=139*3=417

4 0

2 years ago

The surface area of a cylinder consists of the sum of the areas of what shapes?

Paraphin [41]

<span>The surface area of a cylinder includes the bases which are circles and the side which is a rectangle</span>

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2 years ago

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Weekly wages at a certain factory are normally distributed with a mean of $400 and a standard deviation of $50. Find the probabi

AlekseyPX

Answer:

$80

Step-by-step explanation:

400÷50= 80 which is the weekly rate of wages

7 0

2 years ago

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