2 years ago

ME LO RESUELVEN PORFAA

Mathematics

1 answer:

EastWind [94]2 years ago

3 0

The hypotenuseb of the triangle is 17.

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A car is traveling at 20.0 m/s, and the driver sees a traffic light. turn red. After 0.530 s (the reaction time), the driver app

slava [35]

Before the driver applies the brakes ( with the reaction time ):
d 1 = v0 · t = 20 m/s · 0.53 s = 10.6 m
After that:
v = v0 - a · t1
0 = 20 m/s - 7 · t1
7 · t1 = 20
t1 = 2.86 s
d 2 = v 0 · t1 - a · t1² / 2
d 2 = 20 m/s · 2.86 s - 7 m/s² · (2.86 s)²/2 = 57.2 m - 28.6 m = 28.6 m
d = d 1 + d 2 = 10.6 m + 28.6 m = 39.2 m
Answer: the stopping distance of a car is 39.2 m.

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2 years ago

Is this inequality true or false 4+c<13,c=8

Mnenie [13.5K]

4+8 is 12 so yes it is correct!!!

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2 years ago

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What is the geometric mean of 30 and 6

Alik [6]

Since we have 2 numbers, we'll be square rooting.

All we have to do to find the mean is multiply & square root the products.

30 × 6 = 180

$\sqrt{180} = 13.42$

You can use the same process and check my answer if you'd like; I rounded the square root, so you may get a different answer.

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5|x + 11 + 7 = -38 Absolute value equations

gogolik [260]

The answer to this question is 32

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2 years ago

For the trapezoid ABCD E and F are the midpoints of

lawyer [7]

Answer:

$EF=\frac{b+d}{2}\ units$