-27=-3p+15-3p solve the equation and show your work
Answers
-27 = -3p + 15 - 3p
Combine like terms. -3p -3p = (-3-3)p = -6p
-27 = -6p + 15
Subtract 15 from each side to get the variable term on its own.
-27 - 15 = -6p + 15 - 15
-42 = -6p
Divide each side by -6 to find p.
p = -42 ÷ -6 = 7
A conclusion drawn based on evidence from the story is:inference textual evidence character trait
Answers
its textual evidence
Answer:
textual evidence
Step-by-step explanation:
You use 66 gallons of water on 2020 plants in your garden. At that rate, how much water will it take to water 3030 plants?
Answers
It will be 99 gallons. There's one and a half times as many plants so one and a half times as much water will be used.
Answer: it would be 99
Step-by-step explanation:
because of the rate it is going at it will be 99
If you flip 3 fair coins, what is the probability that you'll get at least 2 heads?
Answers
Let's go through all of the possible scenarios. H=Heads T=Tails
HHH HHT HTT HTH THH THT TTH TTT
4 of the 8 possible solutions ends with at least 2 heads.
P(2 heads)=4/8 Simplify P(2 heads)=1/2 or 50%
Can someone PLEASE explain cos and sin?!
Answers
Yes.
If you have a RIGHT triangle with a 29-degree angle in it, and you divide the length of the leg adjacent to the angle by the length of the hypotenuse, then it doesn't matter whether the triangle is drawn on the head of a pin or on a piece of paper that reaches from the Earth to the Moon, the quotient of (adjacent)/(hypotenuse) will always be the same number ... about 0.875 .
That number is a property of every 29-degree angle, no matter the size of the right triangle that it's in. It's called the cosine of 29 degrees.
If you were to divide the leg opposite the 29-degree angle (instead of the adjacent leg) by the length of the hypotenuse, you'd get a different number ... about 0.485 . That number is also a property of every 29-degree angle, no matter the size of the triangle around it. That one is called the sine of 29 degrees.
I just used 29 degrees as an example. Every angle has a sine and a cosine, and a few other things too.
If you have an angle, there's no easy way to calculate its sine or its cosine. You just have to look them up. They're in tables in books, or on line (just put 'cosine 29' in Google), and if you have a calculator, they're probably on your calculator too.
You don't know yet what these are good for, or what you can do with them. That'll be coming up in math before you know it !
So the easiest answer to your question is:
Every angle has properties, characteristics, and aspects of its personality that you never notice until you really get to know it. They're called the sine, the cosine, the tangent, the cotangent, the secant, and the cosecant. They're all numbers, and every angle has a full set of them !
Using sine and cosine, it's possible to describe any (x,y) point as an alternative, (r,θ) point, where r is the length of a segment from (0,0) to the point and θ is the angle between that segment and the x-axis. This is called the polar coordinate system, and the conversion rule is (x,y) = (rcos(θ),rsin(θ )).