Answer:
Look at image I attached below.
Step-by-step explanation:
Important points to memorize when finding missing angles like these:
- Two angles directly <u>across</u> from each other, <u>not next to</u>, are equal.
- <u>All</u> angles that are on one side of a straight line add up to 180°, because a straight line has an angle measure of 180°.
- A full spin-around equals 360°.
- <u>All</u> angles in <u>any triangle</u> add up to 180°.
When you know all these important rules, the rest is just a matter of adding and subtracting.
9514 1404 393
Answer:
Step-by-step explanation:
See the attachment for the working out of the long division.
How to solve exponents:
Learn the correct words and vocabulary for exponent problems. When you have an exponent, like 2^{3}, you have two simple parts. The bottom number, here a 2, is the base. The number it is raised to, here a 3, is known as the exponent or power. If you are talking about 2^{3}, you would say it is "two to the third," "two to the third power," or "two raised to the third power."
If a number is raised to the second power, like 5^{2}, you can also say that the number is squared, such as "five squared."
If a number is raised to the third power, like 10^{3}, you can also say it is cubed, such as "ten cubed."
If a number has no exponent shown, like a simple 4, it is technically to the first power and can be rewritten as 4^{1}.
If the exponent is 0, and a "non-zero number" is raised to the "zero power", then the whole thing equals 1, such as 4^{0}=1 or even something like (3/8)^{0}=1
Answer:
randomly choosing a marble from a bag, replacing it, and choosing again
rolling a number cube, rolling again, and trying to match the first roll
Explanation:
In an independent event, getting a certain outcome once does not change the probability of getting the same outcome again.
The second option (about the coins) is NOT independent because if you pull out a dime on your first try, there are fewer dimes in your pocket and you are less likely to pull out a dime the second try. The third option (about drawing a number) is also NOT independent for the same reason: you don't put the number back into the hat after drawing it out, so there's fewer numbers the second time and the probability is different.
