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Jet001 [13]
2 years ago
13

The center of an earthquake was detected along the Pacific Rim. Geologists determined that the distance the seismic waves travel

ed is represented by r = 15sin(θ), where r is in miles. Which graph represents the distance the waves traveled?

Mathematics
2 answers:
Citrus2011 [14]2 years ago
7 0

Answer:

C

Step-by-step explanation:

just took the exam on edg 2021

NikAS [45]2 years ago
3 0
The circle above the x Axis. I just checked Desmos ngl. I hate polar graphs -.-
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Which statement explains how the lines 2x + y = 4 and y = one halfx + 4 are related?
KatRina [158]

Answer:

They are perpendicular

Step-by-step explanation:

To solve this problem .

we will convert the equations in slope intercept form.

Slope intercept  form of equation is y = mx+c

where m is slope of line and c is y intercept.

________________________________

equation 1 is

2x+y = 4

=> y =4 - 2x or y = -2x + 4

comparing it with y = mx + c

m = -2  , c = 4

_________________________________________

equation 2 is y = one halfx + 4 ( one half is same as 1/2)

so equation is

y = x/2 +4

comparing it with y = mx + c

m = 1/2  , c = 4

_________________________________________

Now lets evaluate options

They are parallel.  wrong option

For lines to be parallel slope should be same.

But here slope are different -2 and 1/2 .

Thus lines are not parallel.

__________________________________________

They are perpendicular.  correct option

For lines to be perpendicular, product of slope should be equal to -1.

-2*1/2 = -1

we can see that product of slope should be equal to -1 .

Thus lines are  perpendicular

______________________________________

They are the same line.  wrong option

For lines to be same both slope and y intercept should  be same.

Y intercept is same but the slopes are different -2 and 1/2  .

Thus lines are not  the same line.

__________________________________________

They are not related.       wrong option

As we have found that the lines are perpendicular .

So this option is intuitively wrong

4 0
3 years ago
What is the equation of the line that passes through the point (-2, 0) and has a slope of -2?​
liq [111]

Answer:

y=-2(x+2)

Step-by-step explanation:

plug in(-2,0) into y-y1=m(x-x1)

y=m(x+2)

slope =m=-2

y=-2(x+2)

8 0
2 years ago
The costs for going to a dog are $7 for 1 dog, and $2 for each additional dog. Write an equation to show this situation, where x
liq [111]
7+2x
You start off with $7 for 1 dog and for every other dog you bring is $2 more
5 0
3 years ago
the surface area of a sphere is found using the formula SA=4πr^2 where r is the radius. if the surface area of a sphere is 144π
IgorC [24]
144= 4. 3.14.r²
r² = 144/12.56
r=√11.46
r= 3.38
7 0
3 years ago
Read 2 more answers
Help me find the value of x! 20 points!!
marta [7]
Check the picture below.

3 0
3 years ago
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