1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Fynjy0 [20]
3 years ago
15

the function f(x)=-2cos(3x-pi/4) has. . a. amplitude 3 and period pi. b. amplitude 2 and period 2pi/3. c. amplitue 3 and period

2pi. d. amplitude 3 and period 4pi
Mathematics
1 answer:
oksian1 [2.3K]3 years ago
5 0
Form of the function:
y = a cos ( b x + c )            a = -2, b = 3
where amplitude is | a | = |-2 | = 2
and period: T = 2π/b = 2π/3
Answer: B ) amplitude 2 and period 2π/3
You might be interested in
In a deck of cards what's the probability of drawing a Face Card (king, queen, jack)
Bumek [7]

Answer:

3/13

Step-by-step explanation:

There are 52 card in a deck of cards

12 of them are face cards   3 cards *4 suits =12

P (face card) = 12/52 = 3/13

3 0
3 years ago
Read 2 more answers
Suppose that a​ person's peak blood alcohol level is 0.07 ​(grams per 100​ mL) and that this level decreases by 40​% each hour.
Natalija [7]

Answer:

Step-by-step explanation:

Considering a person peak blood is 0.07

It decrease by 4% every hour

a) Using exponential function

f(x) = Ca^x

where,

a = 1 + r

r = -0.40%

Here,

C = 0.07,

a = 1 - 0.04 = 0.06

f(x)=0.07(0.6)^x

<h3>Therefore, hourly decay factor is 0.6</h3>

b)

Here the hourly decay factor is 0.6

B(x)=ca^x\\\\0.07(0.6)^x

c) Evaluate

B(2)=0.07\times (0.6)^2\\\\0.07(0.36)\\\\= 0.0252g

0.0252g or 100mL

<h3>Thus, after 2 hours the blood is 0.0252g or 100mL</h3>
3 0
3 years ago
Read 2 more answers
Which statement about converting metric units of measurement is true? Use the metric table to help answer the question.
Kamila [148]

Answer:

C.There are 6.8 kiloliters in 68 hectoliters.

Step-by-step explanation:

1 hectolitre = 100 litres

1 decilitre = 0.1 litre

1 kilolitre = 1000 litree

6.8 kilolitres = 6800 litres

Or 68 hectolitres

7 0
3 years ago
Read 2 more answers
3 /8 + 2/ 3 = 9/ 24 + 16/ 24 = 25/ 24 =
Alchen [17]
Convert the denominator of the first two fractions to 24 since 3 and 8 can fit into 24.

3/8=9/24

2/3=16/24

Now add them together.

9/24+16/24=25/24

Next add the second two fractions 9/24 and 16/24.

9/24+16/24=25/24


Since all fractions equal 25/24, the equation was true!

Hope this helps!

7 0
3 years ago
Anyone please???????
leva [86]

Answer:

\boxed{\sf B)\: x=\sqrt{17}}

Step-by-step explanation:

<u>Use the Pythagorean Theorem</u>

The equation for the Pythagorean Theorem is \tt a^2+b^2=c^2

* a and b are the lengths of the legs, and c is the hypotenuse.*

(To know which side is the hypotenuse look at longest side which is across the right angle).

a= x, b=8, c=9

\sf a^2+b^2=c^2

Let's Plug in the side lengths:

\sf x^2+8^2=9^2

Evaluate 8^2 and 9^2:

\sf x^2+64=81

Subtract 64 from both sides:

\sf x^2+64-64=81-64

\sf x^2=17

Take the square root of both sides:

\sf x=\sqrt{17}

___________________________

5 0
2 years ago
Read 2 more answers
Other questions:
  • How do you do this simultaneous equation?
    13·1 answer
  • What can be said about the relationship between triangles and circle
    11·2 answers
  • Is this right? PLEASE HELP ASAP‼️‼️‼️
    11·1 answer
  • An item has a regular price of $75 at three different stores. Each store has a different offer for the item.
    5·1 answer
  • Consider the equation 9 - 4x = 2x.
    9·1 answer
  • Consider the experimental situation described below. Ability to grow in shade may help pines in the dry forests of Arizona resis
    8·1 answer
  • Please help me find the missing side lengths
    6·1 answer
  • I’m not sure how to do angle relationships, so what is angle cbd?
    8·1 answer
  • You are choosing between two health clubs. Club A offers membership for a fee of $60 plus a monthly fee of $85. Club B offers me
    5·1 answer
  • Divide 6,580 ÷ 31<br> A.212 r 2<br> B.212 r8<br> C.214 r2<br> D.214 r 8
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!