3 years ago

Is the square root of 0.49 rational

Mathematics

1 answer:

Galina-37 [17]3 years ago

6 0

Answer:

rational

Best of luck!

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One of two complementary angles measures 30 degrees more than three times the other. Find each angle.

Leviafan [203]

The two complementary angles are:

95° and 15°

Step-by-step explanation:

Let x be one angle

then the other angle will be 90-x

As the sum of complementary angles is 90

So,

then according to statement

$x = 3(90-x)+30\\x = 270-3x +30\\x = 300-3x\\x+3x = 300\\4x = 300\\x = \frac{300}[4}\\x = 75\\and\\90 -x = 90 - 75 = 15$

The two complementary angles are:

95° and 15°

Keywords: Angles, triangles

Learn more about angles at:

#LearnwithBrainly

7 0

3 years ago

For every 30 minutes of tv airtime,there are 8 minute commercials.If 90 minutes of tv airtime are aired,how many minutes of comm

Alex777 [14]

Answer:

For 90 minutes of TV there will be 24 mins of commercials

Step-by-step explanation:

You start with 30 and keep adding 30 mins each time until you get to 90. (So..30..60..90) each time you add 30mins you add 8 more minutes to the commercials)

30 mins tv----8mins commercials

60 mins tv----16mins commercials

90 mins tv----24mins commercials

Hope this helps, good luck!

8 0

3 years ago

3n^5 divided by 6n^3 simplified,<br> thank

insens350 [35]

Answer:

$\frac{ {n}^{2} }{2}$

Step-by-step explanation:

$\frac{3 {n}^{5} }{6 {n}^{3} } = \frac{3}{6} \times \frac{ {n}^{5} }{ {n}^{3} } = \frac{1}{2} \times {n}^{5 - 3} = \frac{1}{2} \times {n}^{2} = \frac{ {n}^{2} }{2}$