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shusha [124]
3 years ago
12

30 points to whoever can answer this please!

Mathematics
2 answers:
Anastasy [175]3 years ago
8 0

Answer:

y=6sin3(x+1)

Step-by-step explanation:

qwelly [4]3 years ago
4 0
A common sinusoidal function is:

y = asin(bx)

so,always amplitude is a, so a=6

and we know period is:

p = \frac{ |b| }{2\pi}

so

\frac{ |b| }{2\pi} = \frac{2\pi}{3}

b = + or - \frac{4 {\pi}^{2} }{3}

and we have 2 equations that while we can consider which is appropriate ,to have its graph!

6 \sin( \frac{4 {\pi}^{2} }{3}x )
and when you want to shift it 1 unit left we have:
6 \sin( \frac{4 {\pi}^{2} }{3}x +1)
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How do I calculate this? Is there a formula?
alex41 [277]

<u>Answer:</u>

Height of cables = 23.75 meters

<u>Step-by-step explanation:</u>

We are given that the road is suspended from twin towers whose cables are parabolic in shape.

For this situation, imagine a graph where the x-axis represent the road surface and the point (0,0) represents the point that is on the road surface midway between the two towers.

Then draw a parabola having vertex at (0,0) and curving upwards on either side of the vertex at a distance of x = 600 or x = -600, and y at 95.

We know that the equation of a parabola is in the form y=ax^2 and here it passes through the point (600, 95).

y=ax^2

95=a \times 600^2

a=\frac{95}{360000}

a=\frac{19}{72000}

So new equation for parabola would be y=\frac{19x^2}{72000}.

Now we have to find the height (y)of the cable when x= 300.

y=\frac{19 (300)^2}{72000}

y = 23.75 meters

8 0
3 years ago
Read 2 more answers
Solve the following inequality:<br> 2. 4x + 6 &lt; 38
seraphim [82]

Answer- x<8

Solutions

Rearrange:

Rearrange the equation by subtracting what is to the right of the greater than sign from both sides of the inequality :

4*x+6-(38)<0

Step by step solution :

STEP

1

:

Pulling out like terms

1.1 Pull out like factors :

4x - 32 = 4 • (x - 8)

Equation at the end of step

1

:

STEP

2

:

2.1 Divide both sides by 4

Solve Basic Inequality :

2.2 Add 8 to both sides

x < 8

5 0
2 years ago
Mandy bought a desktop computer system to start her business from home for $4,995. It is expected to depreciate at a rate of 10%
ziro4ka [17]

Answer:

8.43 years

Step-by-step explanation:

Given data

Cost price P= $4995

Rate r= 10%

FInal amount A= $2150

The expression for the time/duration is given as

t= ln(A/p)/r

t= ln(2150/4995)/0.1

t= ln(0.430)/0.1

t= 0.843/0.1

t= 8.43

Hence the time it will take is 8.43 years

3 0
3 years ago
(assume no variable equals 0) PLEASE HELP
saw5 [17]

(3n^2 + 1) + (8n^2 - 8)\\= 3n^2 + 1 + 8n^2 - 8\\= 11n^2 - 7

5 0
3 years ago
What is 2(3p – t) – (–4p + t)?
sweet [91]
What the other person said
6 0
3 years ago
Read 2 more answers
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