Cos(5π/3)= A. -√2/2 B. √3/2 C. √2/2 D. 1/2

Mathematics

1 answer:

ololo11 [35]3 years ago

6 0

Answer:

$\frac{5\pi}{3} = 300deg$

360-300=60

cos(60)=1/2 that is the answer

You might be interested in

Which relationship describes angles 1 and 2?

galina1969 [7]

Angle 1 and 2 are vertical angles

Hope this helps :)

8 0

3 years ago

Read 2 more answers

Assuming that n 1 , rewrite the compound interest equation B t 900 1.185 t in the general form.

Rufina [12.5K]

$\bf \qquad \textit{Compound Interest Earned Amount}
\\\\
A=P\left(1+\frac{r}{n}\right)^{nt}
\quad 
\begin{cases}
A=\textit{accumulated amount}\\
P=\textit{original amount deposited}\\
r=rate\to r\%\to \frac{r}{100}\\
n=
\begin{array}{llll}
\textit{times it compounds per year}
\end{array}\\
t=year
\end{cases}$

$\bf 1.185\implies 1+0.185\qquad\quad and\quad n=1
\\\\\\
A=P\left(1+\frac{r}{n}\right)^{nt}\implies A=P\left(1+0.185\right)^{nt}\implies A=P\left(1+\frac{0.185}{1}\right)^{1\cdot t}$

so, the percentage of the rate is 0.185, what's that as a percentage? well, 0.185 * 100, 18.5%.

3 0

3 years ago

Write and solve an equation. Tommy has 5 more toy cars than Billy does. If Tommy has 12 toy cars, how many cars, c, does Billy h

8090 [49]

12-5=7 so billy has 7 toy cars

8 0

3 years ago

How many and what type of solutions does the equation have?

ella [17]

Answer: C

Step-by-step explanation:

Simplify to 4x^2 + 12x + 5 = 0 so that all the terms are on one side.

Do a part of the quadratic formula to see.

You only need to do the $-b^2-4ac$ part. If it is negative, that means there are irrational solutions. If it is positive, it has two solutions. If it is 0, it has 1 solution.

$12^2-4(4)(5) = 64$

It is positive so it has two solutions.

7 0

3 years ago

A 30$ Watch is discounted 15%what is the sale price

My name is Ann [436]

25.5 ; you do 30(.15) = 4.50 and that is your difference therefore you do 30 - 4.50 which equals 25.50 as your sale price. i’m

8 0

3 years ago