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2 years ago

Which set of numbers represents a Pythagorean triple

Mathematics

1 answer:

Anuta_ua [19.1K]2 years ago

3 0

Answer:

27,36,45

Step-by-step explanation:

Pythagorean theorem

$a^{2} +b^{2} =c^{2}$

$6^{2}+ 9^{2}\\ =117\\\neq 12^{2}$

$7^{2}+ 10^{2}\\ =149\\\neq 12^{2}$

$16^{2}+ 18^{2}\\ =580\\\neq 25^{2}$

$27^{2}+ 36^{2}\\ =2025\\= 45^{2}$

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Shawn graphed the points listed below.

Semenov [28]

Answer: A. (4, 4) and (4, 5)

Step-by-step explanation:

The same x value maps onto more than one y value.

6 0

1 year ago

The correct answer is D but i don’t understand

iren [92.7K]

The answer depends on the way you solved it.

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But in actuality, you need to use the equation above and plug in 1.5 and 1
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Do the same to the other side, you should get 6.

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2 years ago

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Karla, Ruby, Anna, and Megan each had a balance of $0 in her bank account on the first day of April. Here are their account bala

bogdanovich [222]

Anna had the biggest change in their bank account because they dropped by $48. The rest of the numbers are closer to zero while -48 is the furthest from zero, therefore it is the biggest change.

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2 years ago

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Find the indicated probability. The weekly salaries of teachers in one state are normally distributed with a mean of $490 and a

Alecsey [184]

Given Information:

Mean weekly salary = μ = $490

Standard deviation of weekly salary = σ = $45

Required Information:

P(X > $525) = ?

Answer:

P(X > $525) = 21.77%

Step-by-step explanation:

We want to find out the probability that a randomly selected teacher earns more than $525 a week.

$P(X > 525) = 1 - P(X < 525)\\\\P(X > 525) = 1 - P(Z < \frac{x - \mu}{\sigma} )\\\\P(X > 525) = 1 - P(Z < \frac{525 - 490}{45} )\\\\P(X > 525) = 1 - P(Z < \frac{35}{45} )\\\\P(X > 525) = 1 - P(Z < 0.78)\\\\$

The z-score corresponding to 0.78 from the z-table is 0.7823

$P(X > 525) = 1 - 0.7823\\\\P(X > 525) = 0.2177\\\\P(X > 525) = 21.77 \%$

Therefore, there is 21.77% probability that a randomly selected teacher earns more than $525 a week.

How to use z-table?

Step 1:

In the z-table, find the two-digit number on the left side corresponding to your z-score. (e.g 0.7, 2.2, 1.5 etc.)

Step 2:

Then look up at the top of z-table to find the remaining decimal point in the range of 0.00 to 0.09. (e.g. if you are looking for 0.78 then go for 0.08 column)

Step 3:

Finally, find the corresponding probability from the z-table at the intersection of step 1 and step 2.

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2 years ago

X + 4 = 11

mojhsa [17]

Answer:

A. Subtraction

B. Subtraction

C. x+4=11

-4 -4

D. x=7

Step-by-step explanation:

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2 years ago