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Delvig [45]
3 years ago
11

The lowest elevation in Long Beach, California, is 7 ¾ feet below sea level. The elevation of Death Valley is about 40 times low

er than the elevation of Long Beach. What is the elevation of Death Valley?
Mathematics
1 answer:
FinnZ [79.3K]3 years ago
3 0

Answer:

The elevation of Death Valley = 31/160 feet

Step-by-step explanation: Since

The lowest elevation in Long Beach, California, is 7 ¾ feet 

Let say L = 7 ¾ feet 

The elevation of Death Valley is about 40 times lower than the elevation of Long Beach

That is D = 1/40 of L

D = 1/40 × 31/4

D = 31/160 feet

The elevation of Death Valley is 31/160 feet

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Answer:

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Step-by-step explanation:

5) 5 + 2x + 6 = x + 10

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   1 = -x

   -1 = x

6) (9x + 7) + (-3x + 20) = 39

    6x + 27 = 39

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8 0
3 years ago
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A walking path across a park is represented by the equation y= -3x - 6 . A new path will be built perpendicular to this path. Th
Romashka [77]

Answer:

The equation that represents the new path is y=(1/3)x+4

Step-by-step explanation:

step 1

Find the slope of the give line

we have

y=-3x-6

so

the slope m is equal to

m=-3

step 2

Find the slope of the perpendicular line to the given line

Remember that

If two lines are perpendicular, then their slopes are opposite reciprocal of each other

so

we have

m=-3 -----> slope of the given line

therefore

The slope of the perpendicular line is equal to

m=1/3

step 3

With m=1/3 and the point (-3,3) find the equation of the line

y-y1=m(x-x1)

substitute

y-3=(1/3)(x+3)

y=(1/3)x+1+3

y=(1/3)x+4 -----> equation that represent the new path

8 0
3 years ago
A race car is driven around a circular track at a constant speed of 180mph. If the diameter is 1/2 mile, what is the angular spe
Bogdan [553]
If the diameter is 1/2 mile, that is 0.5 mile, then the radius is 0.25 -half of it!

the angular speed is theta/time, which means

 w=theta/time

but another formula for it is Velocity*radians

w=velocity*radians

velocity is 180 mph and radians are (revolution/2\pi radius), that is:

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4 0
3 years ago
The number of teams who entered in a 3-on-3 charity basketball tournament can be modeled by function T, where x is the number of
Svetradugi [14.3K]

Answer:

<u>Option A:</u>

R(x)=20x^2+300x+1080

Explanation:

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Use distributive property:

R(x)=(4x+24)\times (5x+45)=(4x)(5x)+(4x)(45)+(24)(5x)+(24)(45)

Simplify:

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Add like terms:

R(x)=20x^2+180x+120x+1080=20x^2+300x+1080

3 0
3 years ago
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luda_lava [24]

Answer:

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Step-by-step explanation:

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144+27y

5 0
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