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REY [17]
3 years ago
8

Police use the formula:

Mathematics
1 answer:
sashaice [31]3 years ago
4 0

Answer:

62.3 miles per hours.

Step-by-step explanation:

The given formula is

v=\sqrt{20L}

Police use this formula to estimate the speed of a car, v , in miles per hour, based on the length, L , in feet, of its skid marks when suddenly braking on a dry, asphalt road.

It is given that car's skid marks is 194 feet at the scene of an accident.

We need to find the speed of car at the time of accident.

Substitute L=194 in the above formula.

v=\sqrt{20(194)}

v=\sqrt{3880}

v=62.289646

v\approx 62.3

Therefore, the speed of car is 62.3 miles per hours.

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What is the equation of the line that passes through the point (−4,−3) and has a slope of \frac{3}{4}
yawa3891 [41]

Answer:

y = \frac{3}{4} x

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Here m = \frac{3}{4} , then

y = \frac{3}{4} x +c ← is the partial equation

To find c substitute (- 4, - 3) into the partial equation

- 3 = - 3 + c ⇒ c = - 3 + 3 = 0

y = \frac{3}{4} x ← equation of line

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3 years ago
Math question! I appreciate any help!
saw5 [17]
Lateral faces are all the sides of the prisms EXCEPT the bases, which are the sides on the top and bottom. To find the area of the lateral faces we can use the formula: perimeter x height.

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height = 14
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Hope this helps!
6 0
3 years ago
During a visit to a primary care physician's office, the probability of having neither lab work nor referral to a specialist is
Verdich [7]

Answer:

Mommy

Step-by-step explanation:

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6 0
2 years ago
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Henry bought a magazine for $5 and two vitamin waters. Henry spent a total of $11. How much did each vitamin water cost? $
saveliy_v [14]
5+x=11
-5    -5
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5 0
3 years ago
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michelle and rosa are researching the deepest lakes in the united states for a school project. lake tahoe has a depth of 1,644 f
Hatshy [7]

Answer:

Rosa is closer to the correct depth.  

Step-by-step explanation:

To show that two measurements are nearly equivalent, we must convert one of the measurements to the other unit.

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Neither is correct but Rosa is closer to the correct depth.

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3 years ago
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