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3 years ago

Select all the sets of three side lengths that will make a triangle.

Mathematics

2 answers:

ryzh [129]3 years ago

6 0

The answer is Set 3,4,5 because 9 plus 16 equal 25

Degger [83]3 years ago

3 0

2,35 i think i’m not sure:)

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((60 points to whoever answers all of these))

Readme [11.4K]

1. 9^2

2. 15^3

3. 14^3

4. 11^5

5. 16^4

3 0

3 years ago

Read 2 more answers

The radius of a circle is 9 feet. What is the circumference?

Vlad1618 [11]

Answer: 18 $\pi$

Step-by-step explanation:

The circumference formula is C= 2 $\pi$ r

r being the radius, so you can just plug in.

C= 2 $\pi$ (9) = 18 $\pi$

7 0

3 years ago

Evaluate the integral ∫2−1|x−1|dx

defon

I think you might be referring to the definite integral,

$\displaystyle \int_{-1}^2|x-1|\,\mathrm dx$

Recall the definition of absolute value:

$|x| = \begin{cases}x&\text{if }x\ge0\\-x&\text{if }x$

Then $|x-1|=x-1$ if $x\ge1$ , and $|x-1|=1-x$ is $x$ . So spliting up the integral at <em>x</em> = 1, we have

$\displaystyle \int_{-1}^2|x-1|\,\mathrm dx = \int_{-1}^1(1-x)\,\mathrm dx + \int_1^2(x-1)\,\mathrm dx$

The rest is simple:

$\displaystyle \int_{-1}^2|x-1|\,\mathrm dx = \left(x-\dfrac{x^2}2\right)\bigg|_{-1}^1 + \left(\dfrac{x^2}2-x\right)\bigg|_1^2 \\\\ = \left(\left(1-\frac12\right)-\left(-1-\frac12\right)\right) + \left(\left(2-2\right)-\left(\frac12-1\right)\right) \\\\ = \boxed{\frac52}$

5 0

3 years ago

What is 0.5 divided by 2.675

eduard

.186915888

that is the answer

if I meant 2.675 divided by .5 it is 5.35

7 0

3 years ago

Read 2 more answers

The print on the package of -watt General Electric soft-white light-bulbs says that these bulbs have an average life of hours. A

Naddika [18.5K]

Answer:

Hi your question is incomplete attached below is the complete question

answer : p ( X < 725 ) = 0.0116

Step-by-step explanation:

Given data:

Average life of bulbs (μ ) = 750 hours

standard deviation (б ) = 55 hours

n ( sample size ) = 25

X = 725

<u>Probability that the mean life of a random sample of 25 bulbs will be less than725 hours </u>

p ( X < 725 ) = p (( X - μ )/ б √n < 725 - 750 / 55√25 )

= P ( Z > - 2.27 )

Hence P ( X < 725 ) = 0.0116 ( using Z-table )

3 0

3 years ago