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3 years ago

How do u simplify 3/30

1 answer:

8 0

$\bf \cfrac{3}{30}\implies \cfrac{3\cdot 1}{3\cdot 10}\implies \cfrac{3}{3}\cdot \cfrac{1}{10}\implies 1\cdot \cfrac{1}{10}\implies \cfrac{1}{10}$

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Vladimir [108]

Answer:

$cos^2\theta + sin^2\theta = 1$

Step-by-step explanation:

Given

$(\frac{b}{r})^2 + (\frac{a}{r})^2$

Required

Use the expression to prove a trigonometry identity

The given expression is not complete until it is written as:

$(\frac{b}{r})^2 + (\frac{a}{r})^2 = (\frac{r}{r})^2$

Going by the Pythagoras theorem, we can assume the following.

a = Opposite
b = Adjacent
r = Hypothenuse

So, we have:

$Sin\theta = \frac{a}{r}$

$Cos\theta = \frac{b}{r}$

Having said that:

The expression can be further simplified as:

$(\frac{b}{r})^2 + (\frac{a}{r})^2 = 1$

Substitute values for sin and cos

$(\frac{b}{r})^2 + (\frac{a}{r})^2 = 1$ becomes

$cos^2\theta + sin^2\theta = 1$

3 0

3 years ago

The number of different cars sold in some country rose from 205 in 1997 to 277 in 2007. Find the percent increase. Round to the

Reptile [31]

We are finding slope:

change in y / change in x

277 - 205 / 2007 - 1997

72 / 10

7.2

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2 years ago

ian went away for 6 days to space camp.his parents received 12 emails from him while he was away.what is the rate of ians emails

Lena [83]

Answer:

2 mails everday

Step-by-step explanation:

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2 years ago

Muffy, Carlos, Doug and Shay are flying kites.

Morgarella [4.7K]

Muffy = 175 feet
Carlos = 100 feet
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Hope I helped.

7 0

2 years ago

Read 2 more answers

You purchased a new car for 17,999 in the year 2015. It is now 2020 and you want to sell your car for a fair price. If your car

salantis [7]

Answer:

$7,986.25

Step-by-step explanation:

We can use the following formula to solve:

$A=P(1-r)^t$

<em>P = principal value</em>

<em>r = rate (decimal)</em>

<em>t = time (years)</em>

<em />

First, change 15% into a decimal:

15% -> $\frac{15}{100}$ -> 0.15

Since 2015 and 2020 are 5 years apart, we will use 5 for t. Now, plug the values into the equation:

$A=17,999(1-0.15)^5$

$A=7,986.25$

Your car would be worth $7,986.25

8 0

2 years ago

How do u simplify 3/30​

How do u simplify 3/30