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2 years ago

14

Help me!!! PLEASE (I only have 13 points)

1 answer:

yan [13]2 years ago

3 0

Answer:

<em>0.6 ÷ 0.3 - Option 2.</em>

<em>0.2 × 0.9 - Option 3.</em>

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The power goes out as Sandra is trying to get dressed. If she has 9 white T-shirts and 11 colored T-shirts in her drawer, is it

Lapatulllka [165]

Because she has more COLORED shirts then WHITE shirts it is likely she will pick a COLORED shirt.

11 +9 = 20 total shirts

probability for a colored one = 11/20

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3 years ago

What is the mean and median and mode and range

RSB [31]

The mean means average. To find it, add together all of your values and divide by the number of addends. The median is the middle number of your data set when in order from least to greatest. The mode is the number that occurred the most often. The range is the difference between the highest and lowest values.

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3 years ago

If tan theta =3, find the value of tan theta + tan (theta+pi) + tan (theta +2pi)

sweet-ann [11.9K]

Answer:

$tan\theta + tan(\theta + \pi) + tan(\theta+2\pi) = 9$

Step-by-step explanation:

Given

$tan\theta = 3$

Required

Find

$tan\theta + tan(\theta + \pi) + tan(\theta+2\pi)$

Calculate $tan(\theta + \pi) \ and\ tan(\theta+2\pi)$

Using tan rule

$tan(\theta + \pi) = \frac{tan\theta + tan\pi}{1 - tan\theta tan\pi}$

So:

$tan(\theta + \pi) = \frac{tan\theta + 0}{1 - tan\theta *0}$

$tan(\theta + \pi) = \frac{tan\theta}{1 }$

$tan(\theta + \pi) = \tan\theta$

$tan(\theta+2\pi)$

$tan(\theta + 2\pi) = \frac{tan\theta + tan2\pi}{1 - tan\theta tan2\pi}$

$tan(\theta + 2\pi) = \frac{tan\theta + 0}{1 - tan\theta *0}$

$tan(\theta + 2\pi) = \tan\theta$ '

'So:

$tan\theta + tan(\theta + \pi) + tan(\theta+2\pi)$ $= tan\theta +tan\theta +tan\theta$

$tan\theta + tan(\theta + \pi) + tan(\theta+2\pi) = 3+3+3$

$tan\theta + tan(\theta + \pi) + tan(\theta+2\pi) = 9$

4 0

2 years ago

There are 24 boys and 16 grils on a playground. What is the ratio of boys tototal number of children on the playground

tatuchka [14]

Answer:

24:40 or 3:5

Step-by-step explanation:

Boys: 24

All children: 24 + 16 = 40

Boys to total amount of children: 24:40

Simplify: 24:40 = 3:5

8 0

2 years ago

Math 9. please help, and show work :)

galina1969 [7]

3.5 cm from the centre

8 0

3 years ago