All categories

3 years ago

What is theformula for finding the hight of a 30-60-90 degree triangle

1 answer:

7 0

We don't know which side your triangle is sitting on, so the 'height'
could be any one of three values.

Here are the two simple tools that tell you everything you want to
know about a 30°-60°-90° triangle. These are worth memorizing:

-- The side opposite the 30° angle is 1/2 of the hypotenuse.

-- The side opposite the 60° angle is 1/2 of the hypotenuse times √3 .

I memorized them exactly 60 years ago. They've been very useful,
and as far as I know, they haven't changed.

You might be interested in

Shana, who lives in Canada, and Pearl, who lives in Pennsylvania, were discussing the weather. Shana complained about the cold t

mezya [45]

Answer:

- -20 = 20

Step-by-step explanation:

The "opposite" here means we take the negative of -20 C.

So we can write - -20 which is equal to 20.

So the first option is correct, - -20 = 20.

6 0

3 years ago

Which statements describe a residual plot for a line of best fit that is a good model for a scatterplot? Check all that apply.

sergeinik [125]

Answer:there are about the same number of points above the x axis as below it

The points are randomly scattered with no clear pattern, i know that those two are correct but I’m not to sure on the others but i hope this helps!

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

1 What values of x are solutions for r + 2x = 8 ?

Ket [755]

X can be 1, 2, 3, 4
R can be 6, 4, 2, 0

3 0

3 years ago

It takes 4 hours to drive 240 miles. Select all the other trips that are traveling at the same rate.

kogti [31]

Answer:

60 mph

Step-by-step explanation:

Time:miles

4:240

1:x

To get x divide 240 by 4 because that's what we divided 4 by to get 1

The rate is 60

select all times with the rate of 60 mph

6 0

2 years ago

The mean monthly car payment for 123 residents of the local apartment complex is $624. What is the best point estimate for the m

Natali [406]

Answer:

The best point estimate for the mean monthly car payment for all residents of the local apartment complex is $624.

Step-by-step explanation:

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean $\mu$ and standard deviation $\sigma$ , the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean $\mu$ and standard deviation $s = \frac{\sigma}{\sqrt{n}}$ .

In this question:

We apply the inverse Central Limit Theorem.

The mean monthy car payment for 123 residents of the local apartment complex is $624.

So, for all residents of the local apartment complex, the best point estimate for the mean monthly car payment is $624.

3 0

3 years ago