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3 years ago

Which set of side lengths form a right triangle?

1 answer:

4 0

Since we don't want to use the Pythagorean Theorem on all of these, first we look for some Pythagorean Triples. Its very helpful to know some of the common ones, so here's a list:

3, 4, 5
5, 12, 13
7, 24, 25
8, 15, 17

So we either look for these or a multiple of these numbers.

The last one is the only one that fits because 15, 20, 25 is a multiple of the triple 3, 4, 5 by multiplying all of them by 5.

Thus, 15, 20, 25 forms a right triangle.

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The sum of three consecutive integers is 48. What are the three numbers?

Alinara [238K]

What three consecutive integers have a sum of 48? Which means that the first number is 15, the second number is 15 + 1 and the third number is 15 + 2. Therefore, three consecutive integers that add up to 48 are 15, 16, and 17.

7 0

3 years ago

What is 1.3*10^4 in standard notation<br> A. 1.3^4<br> B. 13,000<br> C. 0.00013<br> D. 1300

Lelechka [254]

Answer:

13000

Step-by-step explanation:

If you go 4 steps forward at first, it is 13. Add three zeros and then it is at 10^4 and 13000

One zero added is one power in scientific notation

3 0

3 years ago

Read 2 more answers

Can someone simplify

Rashid [163]

Answer:

Option (2). $2\frac{1}{4}$

Step-by-step explanation:

The given expression is [ $-5\frac{1}{4}-(-7\frac{1}{2})$ ]

We can rewrite the fractions as,

$-5\frac{1}{4}$ = $-(5+\frac{1}{4})$

$-7\frac{1}{2}=-(7+\frac{1}{2})$

Now we will substitute the fractions in the expression,

$[-(5+\frac{1}{4})]-[-(7+\frac{1}{2})]$

= $-(5+\frac{1}{4})+(7+\frac{1}{2})$

= (-5 + 7) + $(-\frac{1}{4}+\frac{1}{2})$

= 2 + $\frac{2-1}{4}$

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

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

Therefore, Option (2). will be the answer.

7 0

3 years ago

30 pts, will mark brainliest

sveta [45]

Answer:

T = 20

min = 1

max = 0

Step-by-step explanation:

In the first image, the period is calculated by measuring the distance on the x-axis that it takes for the function to complete a cycle.

The attached image shows a way to measure the period, marking the distance from x = 0 until the wave completes the rise and fall cycle at x = 20.

Therefore the period is 20.

In the second image it can be seen that the lowest peak of the function is y = 1. The function is never less than y = 1. Therefore, that value is the minimum.

In the third image it can be seen that the maximum value of the function is y = 0. Since it is the maximum value that reaches the top peak

3 0

3 years ago

Read 2 more answers

The perimeter of a rectangular garden is 98 feet

dexar [7]

Each side is 24.5 u take 98 divide it by 4

6 0

3 years ago

Read 2 more answers