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3 years ago

I need to do the work of each one! help

Mathematics

1 answer:

iVinArrow [24]3 years ago

7 0

A. 3/4 • 7/8 = 21/32 < 7/8

B. 1 1/3 • 9/10 = 2 1/5 > 9/10

C. 3/4 • 7/8 = 21/32 < 7/8

D. 7/8 • 9/10 = 17/20 < 9/10

A is the correct answer.

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50 POINTS!!!!!!

spin [16.1K]

Answer:
The experimental probability is 1/6, and the theoretical probability is 1/4. The theoretical probability is greater than the experimental probability in this trial.
-------------------
Explanation:

Theoretical probability is the mathematically calculated probability of the circumstances occurring.

There is a 1/2 chance of rolling an even number, and a 1/2 chance of flipping a coin on heads.

Since the question asks for the possibility of both happening, multiply those together to find the probability:

$\frac{1}{2} * \frac{1}{2} = \frac{1}{4}$

The theoretical probability of rolling an even number and then flipping a head is 1/4.

Now we'll focus on Taka's trials.

Experimental probability is the probability that is taken from results of a trial.

Take the results, and see if they match the criteria of rolling an even number and flipping heads.

The results that are bolded fit the criteria:
<span>1 H, 4 T, 1 H, 5 T, 2 H, 3 T, 6 T, 2 H, 3 T, 5 T, 3 H, 4 T
</span>
Taka managed to roll and flip the coin to fit the criteria 2 times out of 12. Converted into a fraction, it is 2/12. Simplified, the experimental probability is 1/6.

3 0

3 years ago

Write each set in the indicated form.

viktelen [127]

Answer:

a) The set of natural numbers greater than or equal to 3 and less than or equal to 6.

b) {3,4,5,6}

Step-by-step explanation:

a) The Roster form is given as {6,8,10,12,...}

The descriptive form is a phrase that describes the given set.

The descriptive form is: <em>The set of even natural numbers greater than or equal to 6.</em>

b) The descriptive form is : The set of natural numbers greater than or equal to 3 and less than or equal to 6.

The Roster form is obtained by listing the numbers between 3 and 6 inclusive in curly brackets.

The Roster form is : {3,4,5,6}

3 0

3 years ago

If someone has a cube shaped box that measures 9 inches along each edge. Can they fit 1,000 1 square inch cubes inside the box

Stolb23 [73]

Answer:

The area of the box is equal to 9^3 = 729 in^3

729<1000

Step-by-step explanation:

No since the volume of the box is less than the total volume of the cubes

4 0

3 years ago

Using the Extended Euclidean Algorithm, find integers x and y such that 26x + 9y = 1.

Xelga [282]

Answer:

The solution is: x=-1 and y=3.

Step-by-step explanation:

Let's find the solution, but first let's remember the following:

A / B = C + R where:

A=dividend, B=divisor, C=quotient, and R=remainder. This can be express as follows:

A = (C * B) + R, which is the structure we are going to use next.

Using the Euclidian Algorithm we need to find the highst common factor (HCF) between the coefficients from your equation, this means:

The original equation: 26x+9y=1 is in the form Ax+By=C, so A=26, B=9 and C=1.

We need to find the HCF of 'A' and 'B'. Using the Euclidan Algorithm (EA), so we have:

A = (C * B) + R, using our values:

26 = (2 * 9) + 8, look that the divisor (B) is 9 and the remainder (R) is 8.

Now using the (EA) we divide the divisor (B=9) by the obtained remainder (R=8). And we do the same for each obtained result until the las remainder (R) is equal to 0, like this:

A = (C * B) + R

9 = (8 * 1) + 1

using the divisor (B=8) and the remainder (R=1) we obtain:

A = (C * B) + R

8 = (1 * 8) + 0, look that the remainder is now 0, so in summary we can use the method as follows:

26 = (2 * 9) + 8

9 = (8 * 1) + 1

8 = (1 * 8) + 0; and this equations are the ones we are going to use in order to find a solution.

Next step is to use the equation before R=0, so:

9 = (8 * 1) + 1, which is:

9 - (8 * 1) = 1; but if you consider the first obtained equation: 26 = (2 * 9) + 8, we can write:

26 - (2 * 9) = 8, and we can use this expression in the previous one, so:

9 - (8 * 1) = 1, is:

9 - ((26 - (2 * 9)) * 1) = 1, simplifying:

9 - 26 + (2*9) = 1

9 - 26 + (9 + 9) = 1

-26 + (9 + 9 + 9) = 1

-26 + (3 * 9) = 1

26*(-1) + 9*(3) = 1; if you compare the last expression with the original equation, which is: 26x+9y=1, you can see the similarity, where x=-1 and y=3.

So, the solution is: x=-1 and y=3.

8 0

4 years ago

Why is the product of 9s diagonal?

Nadusha1986 [10]

Answer:

A. With each 9s fact you add another 9, which means you go straight down a row and back one space. This creates a diagonal pattern in the grid.

6 0

3 years ago