Mathematics High School

An alternating current. I Amperes, is given by i = 10sin2nft.where f is the frequenct in Hertz and t the time in seconds.What is the rate of change of current when t = 20ms given that f = 150 Hzπ​

Answers

Answer 1

Answer:

150

Step-by-step explanation:

Related Questions

PLEASE ANSWER!!!! I NEED HELP AND EXPLANATION!!!!

Answers

The answer is B
((((((((((((((((((((((((((((((((

Tessa grabbed a quick bite to eat during her lunch
break. She purchased an $8.50 sandwich and a
lemonade for $1.99. She tipped the barista 15%
and paid a 6% sales tax. Note: The sales tax and
tip are each based on the cost of the food and
drink, only.

Answers

Answer:

2x power of 3+4x−3

Step-by-step explanation:

hellooop

what is the y-intercept of the graph shown below?

Answers

Answer:

-7 :) hope this helps

Step-by-step explanation:

Answer:

-6

Step-by-step explanation:

To find the y intercept find where the line crosses the the x axis at zero so for this graph it crosses at (0,-6) making the y intercept -6

Which equation has exactly ONE solution?
A) 3 + 10x / 2 = 4x + 2
B) 15x − 5 / 3 = 5x + 4
C) 2 + 6x / 2 = 3x + 1
D) 4x − 10 / 2 = 2x − 5

Answers

Answer:

the answer is d.

Step-by-step explanation:

please mark brainliest

Answer:

I don't know  because

Step-by-step explanation:

A= -1

B)= 17/30

C)= has no solutions

D)= 0

Steve invests $1,800 in an account that earns 3.7% annual interest, compounded continuously. What is the value of the account after 10 years? Round your answer to the nearest dollar. A. about $2,466 B. about $2,589 C. about $2,601 D. about $2,606

Answers

Answer:

B. about $2,589

Step-by-step explanation:

Given data

P=$1,800

R= 3.7%

T=10years

The expression for the compound interest is given as

A= P(1+r)^t

substitute

A= 1800(1+0.037)^10

A= 1800(1.037)^10

A=1800*1.43809495884

A=$2588.570

Hence the answer is  B. about $2,589

Pls help I’m stuck with this problem

Answers

Answer:

463×10³

463×1000

=0.463

Do u love school? I while give u brainliest and alot of points to the people who answer first

Answers

Answer:

yes

Step-by-step explanation:

School is an educational building where you learn math and reading and it doesnt help you but it benifits you in jobs.

Answer:

well yes but no at the same time

Step-by-step explanation:

have a nice week. please mark as brainllest

[o]-[o]

\___/

Identify four tables that show a proportional relationship. Giving correct answer brain and 5 stars!!!

Answers

Answer:

The correct answer is A

Step-by-step explanation:

Forget about the decimal nd think about quarters 1 quarter is 25 2 is 50 3 is 75 and 4 is 1.00

Answer:

The answer is A if I understand the question correctly.

Step-by-step explanation:

Simplify the equation. n ÷ 12 = 11​

Answers

Answer:

n=132

Step-by-step explanation:

Answer:

132

Step-by-step explanation:

n/12=11

n=11*12

n=132

Help me please!!! I will give Brainly if correct!
If you go 540 miles in 27 hours, how many miles per hour are you traveling?
75 mph
20 mph
35 mph
5 mph

Answers

Answer:

B, 20mph

Step-by-step explanation:

540 miles in 27 hours is 540/27 = 20 miles in 1 hour. This is 20 mph

Answer:

B. 20 mph

Step-by-step explanation:

You're gonna divide the total distance traveled in the time it took to find how much time it took per hour

540/27 = 20

A jet flies 175 miles in 7 minutes. How far will the jet fly in 85 minutes?

Answers

Given:

A jet flies 175 miles in 7 minutes.

To find:

How far will the jet fly in 85 minutes?

Solution:

According to the given information,

Distance covered by the jet in 7 minutes = 175 miles

Using this, we get

Distance covered by the jet in 1 minutes = [tex]\dfrac{175}{7}[/tex] miles

Distance covered by the jet in 1 minutes = [tex]25[/tex] miles

Now,

Distance covered by the jet in 85 minutes = [tex]85\times 25[/tex] miles

Distance covered by the jet in 85 minutes = [tex]2125[/tex] miles

Therefore, the jet flies 2125 miles in 85 minutes.

A big-screen TV that previously sold for $2,400 has been marked down to $2,040. What is the original price?

Answers

Answer:

easy $2,400

Step-by-step explanation:

PLEASE HELP
What is the formula to find a square pyramid?

Answers

Answer:A Square Pyramid is a pyramid with a square base. Square Pyramid Formula : Area of Base (A) = s² Surface Area of Pyramid = s² + 2sl = A + 2sl Volume of Pyramid = (1/3)b²h

Step-by-step explanation:

4. Find the value of x.
A 7
B -7
C 3
D 3.5


Answers

Answer:

l got 7 sorry if it is not the answer

Step-by-step explanation:

2x+12=5x-9 two will come to the other side n become 5x-2x=3x then 9 will go to the other side n become 12+9=21

3x=21 then divide both sides by 3

Ayala has 806 computer files she wants to put on CDs.
If she can fit 19 files on each CD, how many CDs will she need? Enter the correct
answer to complete the statement.

Answers

152829262428191929353919173

Mike just opened a checking account at the bank. He asked for a debit card Instead an ATM card. What will Mike be able to do with a debit ca
that he could NOT do with an ATM card?
Select the best answer from the choices provided.
Ο Α.
transfer money
OB.
deposit money
C.
withdraw money
OD.
purchase an item

Answers

Answer:

the answer is d

Kimberly has 3.25 kilograms of flour in a container. She adds 45 grams of flour to the container. How many kilograms of flour does she have now?

Answers

Answer:

3.295 Kilograms of flour

Step-by-step explanation:

Kimberly has 3.25 kilograms of flour in a container. She adds 45 grams of flour to the container. How many kilograms of flour does she have now?

Kimberly has 3.25 kilograms of flour in a container.

She adds 45 grams of flour to the container.

We convert 45 grams to kilograms

1 gram = 0.001 kilogram

45 grams = x

Cross Multiply

x = 45 × 0.001 kilogram

x = 0.045 kilograms

The kilograms of flour she has now is calculated as:

Number of kilograms of flour in the container + Number of kilograms of Flour just added

= 3.25 kilograms + 0.045 kilograms

= 3.295 Kilograms of flour

There are 12 people in a tournament. Each player must play against every other player. How many games will be played?

Answers

Answer:

6

Step-by-step explanation:

A player will play against every OTHER player meaning that you will play against 6 players.

What is the volume of the cylinder?

Answers

Answer:

24

Step-by-step explanation:

There is a bag with only red marbles and blue marbles. The probability
of randomly choosing a red marble is 2/9. There are 63 marbles in total in
the bag and each is equally likely to be chosen. Work out how many red
marbles there must be.​

Answers

Answer:

No of red marbles = 14

Step-by-step explanation:

Let x be the number of red marbles

x/63 = 2/9

x = 14

No of red marbles = 14

Answer: 14

Step-by-step explanation:

An equation is shown. 21t = 252

Answers

Answer:

t = 12

Step-by-step explanation:

252 divded by 21 =

[tex]12[/tex]'

hi i will mark brainliest if at least 2 are done:)

Answers

Answer:

[tex]3x+18x+5x-2=180\\26x-2=180\\26x=182\\X=7[/tex]

[tex]<D=21\\<E=126\\<F=33\\[/tex]

[tex]16x+13x+16x=180\\45x=180\\X=4\\[/tex]

[tex]<G=64\\<H=64\\<I=52\\[/tex]

[tex]X+8+6x-5+2x-3=180\\9x=180\\X=20\\[/tex]

[tex]<J=28\\<K=115\\<L=37\\[/tex]

Step-by-step explanation:

Solve the proportion
2/r = 12/18​

Answers

Answer:

r=3

Step-by-step explanation:

Divide the numbers

2/r=12/18

2/r=2/3

Multiply all terms by the same value to eliminate fraction denominators

rx2/r=rx2/3

simplify

2=2r/3

multiply all terms by the same value to eliminate fraction denominators again

3x2=3x2r/3

simplify

6=2r

divide both sides if the equation by the same term

6/2=2r/2

r=3

One number is 16 more than another number. The two numbers have a sum of 120. Which system of equations could you use to find the two numbers?
A)y=x – 16
y=x + 120
B)y=x + 16
y = x + 120
C)y=x - 16
y=x – 120
D)y= x - 16
y = -x + 120​

Answers

Answer: D)y= x - 16

                y = -x + 120​

Step-by-step explanation:

Let the two numbers be x and y

such that if one number is x , the other number y

Let x be the number which is 16 more than another number , so that it  can be expressed as

x= y+16  which can also be written as

y= x - 16

Also, if the two numbers have a sum of 120, then it can be represented as

x+y=120  or

y = -x + 120​

Therefore system of equations  to find the two numbers are

D)y= x - 16

y = -x + 120​

Can someone plz help me with this one problem plz!!!!

Answers

Answer:

x  |  y

3  |  0

4  |  1

5  |  2

6  |  3

Step-by-step explanation:

PLEASE HELP......due today

Answers

Answer:

Yes, *2

Step-by-step explanation:

The second figure is exactly half of the first figure

find the value of x in the given figure​

Answers

Answer:

x = 32

Step-by-step explanation:

(2x + 60) + (3x - 40) = 180  because they are supplementary angles

5x + 20 = 180

5x = 160

x = 32

Pls help ASAP and ill give brainliest

Answers

Answer:

81 lbs of raisins

Step-by-step explanation:

make a ratio

3 x

-- = ---

2 54

solve for x by cross multiplying

162= 2x

x= 81 lbs of raisins

Solve the system of equations.
12x - 5y = –20
y=x+4
2 =
Y=

Answers

Answer:

Solution :

{x,y} = {0/14261512,4}

Step-by-step explanation:

Solve by Substitution :

// Solve equation [2] for the variable y

[2] y = x + 4

// Plug this in for variable y in equation [1]

[1] 12x - 5•(x +4) = -20

[1] 7x = 0

// Solve equation [1] for the variable x

[1] 7x = 0

[1] x = 0

// By now we know this much :

x = 0

y = x+4

// Use the x value to solve for y

y = (-0/14261512)+4 = 4

Answer:y = (-0/14261512)+4 = 4

Step-by-step explanation:[2]    y = x + 4// Plug this in for variable  y  in equation [1]

  [1]    12x - 5•(x +4) = -20   [1]    7x = 0// Solve equation [1] for the variable  x

  [1]    7x = 0

  [1]    x = 0 // By now we know this much :

   x = 0    y = x+4// Use the  x  value to solve for  y

   y = (-0/14261512)+4 = 4 Solution : {x,y} = {0/14261512,4}

PLEASE HELP ASAP 100 POINTS AND BRAINIEST
please solve 7y + 13 -4z when =5 and z =9.

Answers

Answer:

35+13-36

Step-by-step explanation:

35+13=48

48-36=12

the answer is:

=12

if you need the step by step explanation let me know :)

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