2 years ago

Which graph represents f(x)=−2cos(4πx)?

Mathematics

1 answer:

algol [13]2 years ago

3 0

Answer:

the last one (bottom right)

Step-by-step explanation:

4×pi is the same as twice around the whole circle to the beginning. it is the same as 0°, and cos(0) = 1, and then -2×cos(0) = -2

so, we only need to look, where the function reaches -2.

it should be at x = 0, x = 0.5 and x = 1.

You might be interested in

Which of the following has factor of (× - 4) (× - 3)?

julia-pushkina [17]

Answer:

Hello!

After reading your question I have come up with the correct way to factor (x-4) and (x-3) together:

x²-7x+12

Step-by-step explanation:

This is my work:

3 0

2 years ago

Mark works in an paint factory. He pours 1,336 liters of paint into 8 barrels. He pours the same amount of paint into each barre

9966 [12]

C : 167 liters
1336 dived by 8=167

3 0

3 years ago

Read 2 more answers

Second pictures of my last question

Elanso [62]

Answer:

you really did not give us the full pictuer

Step-by-step explanation:

8 0

2 years ago

If the risk-free rate is 7 percent, the expected return on the market is 10 percent, and the expected return on Security J is 13

Lelu [443]

Answer:

0.02 or 2% = Beta

Step-by-step explanation:

Given that,

Risk-free rate = 7 percent

Expected return on the market = 10 percent

Expected return on Security J = 13 percent

Therefore, the beta of Security J is calculated as follows;

Expected return on Security J = Risk-free rate + Beta (Expected return on the market - Risk-free rate)

13 percent = 7 percent + Beta (10 percent - 7 percent)

0.13 - 0.07 = 0.03 Beta

0.06 = 0.03 Beta

0.06 ÷ 0.03 = Beta

0.02 or 2% = Beta

6 0

3 years ago

Easy 100 points, plz answer ASP! Please include an explanation!!

valina [46]

Answer:

The third option

Step-by-step explanation:

the most reasonable

6 0

3 years ago

Read 2 more answers