Answer: 31.2 pies
Step-by-step explanation:
Kim sold pies for $5.00 each and earned $156 from doing so.
The number of pies she sold to get to this was x pies.
The formula for doing so is therefore:
5 * x pies = 156
5x = 156
x = 156 / 5
= 31.2 pies
he would have traveled 210 miles because in half an hour he would have traveled 30 miles and in 3 hours he would have traveled 180 miles. so we have to add those up and we get our answer: 210 miles
Answer:
1.) 6√13/13
2.) 4√13/13
3.) 3
Step-by-step explanation:
given that cot(x) = 2/3
But cot(x) = 1/tan(x)
Substitutes 1/tan(x) for cot(x)
1/tan(x) = 2/3
Reciprocate both sides
Tan(x) = 3/2 = opposite/adjacent
Use pythagorean theorem to find the hypothenus.
Hypothenus = sqrt ( 3^2 + 2^2 )
Hypothenus = sqrt ( 9 + 4 )
Hypothenus = sqrt (13)
Hypothenus = √13
1.) Sin(x) = opposite/hypothenus = 3/√13
Rationalise
3/√13 × √13/√13
3√13/13
Sin(2x) = 2 × 3√13/13
Sin(2x) = 6√13/13
2.) Cos( x ) = adjacent/hypothenus
Cos (x) = 2/√13
Rationalise
2/√13 × √13 /√13
2√13/13
Cos(2x) = 2 × 2√13/13
Cos(2x) = 4√13/13
3.) Tan (x) = 3/2
tan (2x) = 2 × 3/2
Tan(2x) = 3
Answer:
You need to add or multiply the degres.
Step-by-step explanation:
donnne wc
Answer:
8/15
Step-by-step explanation:
The reason is because to multiply, you take the reciprocal of the fraction...
So
4/5/3/-2, right? So that's basically -4/5 ÷ 3/-2 so 4/5 * -2/3. The reciprocal of a fraction is literally just flipping it. Now, you know how to multiply, right?
-4/5 * -2/3 = (you can't simplify) 8 (negative times negative = positive) / 5*3
so 8/5*3 = 8/15. 8/15 is 0.53333, or you can just keep it as a fraction.
