Find the measure of the angle between the vectors 〈6, –3, 1〉 and 〈8, 9, –11〉 A:90°
B:30°
C:84.8°
D:102.6°​

Ifurniture stores having a weekend sale and is offering 20% discount on patio chairs and table the sales tax on furniture is 6.25 using function composition how can you represent the total amount a that you would need to pay for this furniture that cost x dollars

The dolphins at the webster are fed 1/2 of a bucket of fish each day the sea otters are fed 1/2 as much fish as the dolphins how many buckets of fish are the sea fed each day? simplify you answer and write it as a proper fraction or as a whole or mixed number

Prove that the value of the expression 7^8–7^7+7^6 is divisible by 43.