All categories

3 years ago

Arctan(tan(105°)) = 105° True False

Mathematics

1 answer:

fredd [130]3 years ago

4 0

It might be false because it equals something else

You might be interested in

You have 4 dimes, 5 quarters, and 3 pennies in your pocket. What is the probability of reaching in and randomly picking out a di

Monica [59]

9/11 chance that you will pick out a dime or a quarter.

6 0

3 years ago

Read 2 more answers

Pweasee help!!!!!!!!!!!!!

Oduvanchick [21]

Answer:

B. $\dfrac{1}{3}x-\dfrac{1}{4}y-\dfrac{4}{5}+\dfrac{1}{3}x-\dfrac{1}{4}y$

Step-by-step explanation:

Consider all options:

A. In the expression

$\dfrac{1}{3}x-\dfrac{1}{4}y-\dfrac{4}{5}+\dfrac{1}{3}x+\dfrac{1}{4}y$

combine the like terms:

$\left(\dfrac{1}{3}x+\dfrac{1}{3}x\right)+\left(-\dfrac{1}{4}y+\dfrac{1}{4}y\right)-\dfrac{4}{5}$

Use distributive property:

$x\left(\dfrac{1}{3}+\dfrac{1}{3}\right)+y\left(-\dfrac{1}{4}+\dfrac{1}{4}\right)-\dfrac{4}{5}=\dfrac{2}{3}x-\dfrac{4}{5}$

This option is false.

2. In the expression

$\dfrac{1}{3}x-\dfrac{1}{4}y-\dfrac{4}{5}+\dfrac{1}{3}x-\dfrac{1}{4}y$

combine the like terms:

$\left(\dfrac{1}{3}x+\dfrac{1}{3}x\right)+\left(-\dfrac{1}{4}y-\dfrac{1}{4}y\right)-\dfrac{4}{5}$

Use distributive property:

$x\left(\dfrac{1}{3}+\dfrac{1}{3}\right)+y\left(-\dfrac{1}{4}-\dfrac{1}{4}\right)-\dfrac{4}{5}=\dfrac{2}{3}x-\dfrac{1}{2}y-\dfrac{4}{5}$

This option is true.

3. In the expression

$\dfrac{1}{3}x-\dfrac{1}{4}y-\dfrac{1}{5}-\dfrac{1}{3}x-\dfrac{3}{5}-\dfrac{1}{4}y$

combine the like terms:

$\left(\dfrac{1}{3}x-\dfrac{1}{3}x\right)+\left(-\dfrac{1}{4}y-\dfrac{1}{4}y\right)+\left(-\dfrac{1}{5}-\dfrac{3}{5}\right)$

Use distributive property:

$x\left(\dfrac{1}{3}-\dfrac{1}{3}\right)+y\left(-\dfrac{1}{4}-\dfrac{1}{4}\right)-\dfrac{4}{5}=-\dfrac{1}{2}y-\dfrac{4}{5}$

This option is false.

4. In the expression

$\dfrac{1}{3}x-\dfrac{1}{4}y+\dfrac{2}{5}+\dfrac{1}{3}x-\dfrac{2}{5}-\dfrac{1}{4}y$

combine the like terms:

$\left(\dfrac{1}{3}x+\dfrac{1}{3}x\right)+\left(-\dfrac{1}{4}y-\dfrac{1}{4}y\right)+\left(\dfrac{2}{5}-\dfrac{2}{5}\right)$

Use distributive property:

$x\left(\dfrac{1}{3}+\dfrac{1}{3}\right)+y\left(-\dfrac{1}{4}-\dfrac{1}{4}\right)=\dfrac{2}{3}x-\dfrac{1}{2}y$

This option is false.

7 0

3 years ago

Identify the variation as a direct, inverse, joint, or combined.<br> xy/z=c

Korvikt [17]

The given equation is a combined variation.

We have been given an equation is

$\frac{xy}{z}$

This is an equation in which we have three variables and one constant.

This can not be the case of direct or inverse variation because in direct or inverse variation we have only two variables. Whereas, here we have three variables.

So, Direct and inverse options are discarded.

So, either It can be joint or combined

In joint variation both the variables are directly proportional

Hence, given equation is not joint because if we rewrite the equation we will get $y = \frac{cz}{x}$ both the variables are not directly proportional.

In combined, one variable is directly proportional and the other one is inversely proportional.

From $y = \frac{cz}{x}$ we can see that z is directly proportional and x is inversely proportional.

Hence the answer is, the given equation is combined variation.

To learn more about variations click here brainly.com/question/2375770

#SPJ9

3 0

1 year ago

I need 1 answer for 99 points

Nataly [62]

Answer:

$7.45

Step-by-step explanation:

If it's constant , divide the amount he earns by the amount of hours. It should be the same every time.

44.70 divided by 6=7.45

and so on

3 0

2 years ago

Read 2 more answers

If you have designed a test that measures principal leadership, and want to explore whether there are other constructs that are

DIA [1.3K]

Answer:

Factor analysis

Step-by-step explanation:

Factor Analysis is a method for modeling observed variables, and their covariance structure, in terms of a smaller number of underlying unobservable “factors.” These factors are typically viewed as broad concepts or ideas that may describe a noted occurrence.

Take for example:

A basic impulse of acquiring a certain social level might explain most consumption behavior. These unobserved factors are more interesting to the social scientist than the noted numerical measurements.

6 0

3 years ago