Mathematics High School

can someone please help with this q^q

Answers

Answer 1

Answer:

[tex]y = -\frac{3}{4} sin(\frac{2}{3}x)[/tex]

Step-by-step explanation:

First determine whether it is a sine function or a cosine function. Since

sin(x) = 0 at x = 0 and we see indeed that the value of the function is 0 at x = 0 it must be a sine function

The general equation of a sine function is [tex]a sinbx[/tex]

where a is the amplitude. The amplitude is one-half the difference between the lowest and highest values in the graph.From the graph we can see that the highest value is 3/4 and lowest is -3/4 so the amplitude = 1/2 (3/4 + 3/4) = 3/4

If the amplitude were positive, the function would be increasing at (0,0) and going up to its amplitude value. However we can see that the function is decreasing at (0,0 ) and goes down to -3/4. Therefore the amplitude a has a negative sign so a = -3/4

To compute b, note that the period of the function ie where it finishes a full cycle is 3π since the function at that x value repeats itself. The relationship between b and the period is 2π/b = 3π in this particular case

This gives b = 2/3

So a = -3/4, b = 2/3 and the equation is [tex]y = -\frac{3}{4} sin(\frac{2}{3}x)[/tex]

Related Questions

Write 460,000,000 as a power of ten.

Answers

Answer:

460 million = 4.6 x 10^8

Step-by-step explanation:

Lusia wants to buy sulu. If she buys 7 meters,She is 1 dollar short. If she buys 5 meters, 5 dollar is left over . How much does she have ?

Answers

Answer:

$20

Step-by-step explanation:

let 1 meter of sulu = s, lusia has m dollar

7s = m + 1 => m = 7s - 1

5s = m - 5

5s = 7s - 1 - 5

2s = 6

s = 3

m = 7s - 1 = 21 - 1 = 20

Which expression equals -1?

Answers

Answer:

Option D. is correct.

Step-by-step explanation:

[tex]\cot ^{\left(2\right)}\left(73^{\circ \:}\right)-\csc ^{\left(2\right)}\left(73^{\circ \:}\right)\\[/tex]

[tex]\csc \left(73^{\circ \:}\right)=\frac{1}{\sin \left(73^{\circ \:}\right)}[/tex]

[tex]=\cot ^2\left(73^{\circ \:}\right)-\left(\frac{1}{\sin \left(73^{\circ \:}\right)}\right)^2[/tex]

[tex]\left(\frac{1}{\sin \left(73^{\circ \:}\right)}\right)^2 = \left\frac{1}{\sin^2 \left(73^{\circ \:}\right)}\right[/tex]

[tex]=\cot ^2\left(73^{\circ \:}\right)-\frac{1}{\sin ^2\left(73^{\circ \:}\right)}[/tex]

Which is the same as...

[tex]-1[/tex]

Find the derivative of f(x) = 7x + 9 at x = 6. (6 points)

Answers

Answer: f(x) = 7x x•9^(x-1)

Helppppppppp I’m struggling

Answers

Answer:

ok what must you do

Step-by-step explanation:

AYUDA LA NECESITO RAPIDO AHHHH

Answers

Answer:

y=7(3)= 21

y=7(8)= 56

y=7(10)= 70

Step-by-step explanation:

Answer:

X Y

3 21

8 56

10 70

Step-by-step explanation:

Find Y by plugging in each X value to the given function.

Encuentre Y reemplazando cada valor de X en la función dada.

When x = 3 : y = 7 * 3 = 21

Cuando x = 3 : y = 7 * 3 = 21

When x = 8 : y = 7 * 8 = 56

Cuando x = 8 : y = 7 * 8 = 56

When x = 10 : y = 7 * 10 = 70

Cuando x = 10 : y = 7 * 10 = 70

what is the answer for this question (5+×)²

Answers

[tex](5+x)^2\\\\=5^2 +2\cdot5\cdot x +x^2\\\\=25+10x +x^2 \\\\=x^2 +10x +25[/tex]

Is y=2^x linear, exponential or neither

Answers

Answer:
exponential

Step-by-step explanation:
An exponential function is defined as a function with a positive constant other than 1 raised to a variable exponent. A function is evaluated by solving at a specific input value. An exponential model can be found when the growth rate and initial value are known.

A straight highway is 100 miles long and each mile is marked by a mile post numbered from 0-100. A rest area is going to be built along the highway exactly 6 miles away from a milepost 57. If m is the milepost number of the rest area which of the following equations represents the possible locations for the rest area

Answers

Answer:

maybe this will help, but the rest area will be at mile marker 51

o 0 If a triangle has angle measurements of 60 and 70°, what is the measure of the third angle? What kind of triangle is this? Acute, Right, or Obtuse? Explain how you solve this problem.

Answers

Answer:

→ 50°

→ Acute triangle

Step-by-step explanation:

the measure of the third angle = 180 - (60 + 70) = 180 - 130 = 50°

definitions=======================================

Acute angle : it’s an angle that measures less than 90°.

Acute triangle: it’s a triangle with three acute angles.

………………………………………………………………………………………………

The measures of the angles in our triangle are respectively 60° , 70° , 50°

Thus ,it’s an acute triangle .

help asap check picture

Answers

81 wildebeest passed the biologist in the first 20 minutes.

pls answer asap, thanks!!! (will mark brainliest)

Answers

Step-by-step explanation:

s = top speed

p = horsepower

s = 27.3 × p^(1/6)

the exponent 1/6 means the 6th root of p.

17.

s = 27.3 × 70^(1/6) = 27.3 × 2.030094899... =

= 55.42159075... knots

18.

50 = 27.3 × p^(1/6)

50⁶ = 27.3⁶ × p

p = 50⁶/27.3⁶ = (50/27.3)⁶ = (1.831501832...)⁶ =

= 37.74367151... horsepower

show 2/5 65 and 3/8 on the number line below

Answers

2/5 is on the 4th tic mark, 65% is dead cent of the 6th and 7th tic mark, and 3/8 is most the way towards the 4th tic mark

There are 10 players on the swim team. How many ways can the coach select 3 people to swim in the relay?

A. 1,080
B. 960
C. 720
D. 120

Answers

Answer:

C. 720

Step-by-step explanation:

10 - 3 is 8 so you multiply all the numbers from 10 through 8

10 * 9 * 8 = 720

That is the answer. Hope it helped!

Answer:

C: 720

Step-by-step explanation:

i got 100% on the quiz

Lin solved a quadratic equation by factoring and found one solution to be x = 3/4. Which of the following expressions could have been one of her factors?

Answers

Answer: 4x-3

Step-by-step explanation: When subsituted, the equation should equal 0

PLEASE HELP ME MI AMOR

Answers

Answer:

Well for 1 question it would be a 25% chance but since its two i would say its a 50% chance

Step-by-step explanation:

HELLPP 50 points!! its due soon!!!!!

Answers

One two and six are the answers. Range cannot have two or more same number domain to be a function. One range on e domain

SOLVE ALL THESE EQUATION BY USING THE METHOD SUBSTITUTION ALGEBRAICALLY HERE'S ARE ALL THE EQUATION:
1. -7x - y = - 1/ y = 8x= 16
2. 3x +4y =0/ y=-3x -18
3. y = 3x/ -5x -2y = - 11
4. -8x -7y =0/ y = 6x
8. 2x- 6y = -14/ y=-5x -19

Answers

Answer:

See below ~

Step-by-step explanation:

Question 1

-7x - y = -1y = 8x + 16

⇒ -7x - (8x + 16) = -1

⇒ -7x - 8x - 16 = -1

⇒ -15x = 15

⇒ x = -1

⇒ y = 8(-1) + 16 = 8

⇒ Solution = (-1, 8)

Question 2

3x + 4y = 0y = -3x - 18

⇒ 3x + 4(-3x - 18) = 0

⇒ 3x - 12x - 72 = 0

⇒ -9x = 72

⇒ x = -8

⇒ y = -3(-8) - 18 = 6

⇒ Solution = (-8, 6)

Question 3 (not clear)

Question 4

-8x - 7y = 0y = 6x

⇒ -8x - 7(6x) = 0

⇒ -8x - 42x = 0

⇒ -50x = 0

⇒ x = 0

⇒ y = 6(0) = 0

⇒ Solution = (0, 0)

Question 8

2x - 6y = -14y = -5x - 19

⇒ 2x - 6(-5x - 19) = -14

⇒ 2x + 30x + 114 = -14

⇒ 32x = -128

⇒ x = -4

⇒ y = -5(-4) - 19 = 1

⇒ Solution = (-4, 1)

Consider this system of equations.

p=2np=2np=2n

p−5=1.5np−5=1.5np−5=1.5n

What value of nnn makes the system of equations true?

Answers

The values of n and p which makes the system of equations true are 10 and 20 respectively.

What is a linear equation?

It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.

If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.

We have system of equation:

p=2n and

p−5=1.5n

Put p = 2n in the other equation.

2n - 5 = 1.5n

2n = 1.5n +5 (add 5 on both sides)

0.5n = 5 (subtract 1.5n on both sides)

n = 10 (divide by 0.5 on both sides)

Put n = 10 in the equation p = 2n

p = 2(10) = 20

Thus, the values of n and p which makes the system of equations true are 10 and 20 respectively.

Learn more about the linear equation here:

brainly.com/question/11897796

#SPJ1

What is the area of the shaded region?

Answers

Answer:

461.81

Step-by-step explanation:

your welcome

Twenty percent of the children live on a farm what is the fractional part of students who don’t

Answers

Answer:

80%

Step-by-step explanation:

If it's 20 out of 100 than it's 80 because
100 - 20 = 80

answer both and you get tons

Answers

Answer:

Read the explanation Hope it helps!

Step-by-step explanation:

PART 1

13.5% is 13.5

3.9*0.01=0.039

3 3/5=3.6

1.35

3.9

[tex]3.9*10^{-2} \\13.5%\\[/tex]

1.35

[tex]3 \frac{3}{5}[/tex]

3.9

PART 2

The least value would be 6.25*10^-3

Given →u = (-7, 1/2) and →w = (2, 3/4), Find 2u→ +4w→

A. (-6, 1 1/2)
B. (-24, 3 1/2)
C. (-5, 1 1/4
D. (-6, 4)

Answers

2(-7, 1/2) + 4(2, 3/4) = (-14, 1) + (8, 3) = (-6, 4)

Answer: D. (-6, 4)

An opened a sevings account with $300 and was paid simple interest at an annual rate of 5%. When Ann closed the account, she
was paid 75 in interest. How long was the account open for, in years?

Answers

Answer:

it would have took 15 years

what is 7 + (-5) + (-3)

Answers

Answer:

-1

Step-by-step explanation:

7+(-5)+(-3)

7-5-3

7-8

=-1

Answer:

the answer is -1

Step-by-step explanation:

simple:

7+(-5)

= +2 ( seven has the higher absolute value, so we go with positive)

+2 + (-3)

= -1 (we go with the negative this time because -3 has the higher absolute value)

(answer is above)

What is the value of y rounded to the nearest 10th

Answers

Answer:

8/13

Step-by-step explanation:

I think am not sure...

Answer:

y ≈ 46.2

Step-by-step explanation:

using the law of sines , then

[tex]\frac{y}{sin85}[/tex] = [tex]\frac{31}{sin42}[/tex] ( cross- multiply )

y × sin42° = 31 × sin85° ( divide both sides by sin42° )

y = [tex]\frac{31sin85}{sin42}[/tex] ≈ 46.2 ( to the nearest tenth )

(1.50b+ 2.95m+ 1.55p)-0.20(1.50b + 2.95m + 1.55p)

Answers

Answer:

When you simplify the equation you have to combine like terms.

Here is what i got

If this was what your looking for i dont mind brainlest

A bag contains 6 white marbles and 4 black
marbles. A marble is drawn from the bag
and then a second marble is drawn without
replacing the first one.
What is the probability of drawing a white
marble on the first draw, followed by a black
marble on the second?

Answers

Answer:

4/15

Step-by-step explanation:

P(drawing white marble and black marble)

= 6/10 × 4/9 [9 as there is no replacement]

= 4/15

A family of four four spent $75 to go to the movie theater 10% of the total was spent on drinks they bought two tubs of popcorn for $6.75 each the rest of the money was spent on movie tickets what was the price per ticket

Answers

just use your in built calculator

A hotel builds an isosceles trapezoidal pool for children. it orders a tarp to cover the pool when not in use. what is the area of the tarp?
to find the height. first find that d is 60,45,or 120. this means the height of the trapezoid is approximately 2.5,4.3,or 3.5 feet. so the area of the tarp is approximately 47.3,30.0 or 38.5 square feet.

Answers

The area of the trapezoidal tarp in the hotel is 47.3 square inches

How to determine the area of the tarp?

The area of a trapezoid is calculated using:

Area = 0.5 * (Sum of parallel sides) * Height

From the complete question, the parallel sides are:

10 ft and 12 ft

So, we have:

Area = 0.5 * (10 + 12) * h

Evaluate

Area = 11 * h

The height (h) is calculated using the following cosine function

cos(120 - 90) = h/5

This gives

cos(30) = h/5

Make h the subject

h = 5cos(30)

Evaluate

h = 4.3

So, we have:

Area = 11 * 4.3

Evaluate

Area = 47.3

Hence, the area of the trapezoid is 47.3 square inches