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liberstina [14]
3 years ago
12

If you were given a fractional strip, that did not have any subdivisions marked like this one pictured below, how would you dete

rmine the fractional amount of the bar that is shaded?

Mathematics
1 answer:
Pavlova-9 [17]3 years ago
4 0

9514 1404 393

Answer:

  it depends on the accuracy and resolution required of the answer

Step-by-step explanation:

The shaded portion appears to be about half the length of the unshaded portion, suggesting the shaded amount is 1/3.

__

Using a pair of dividers, one could determine the number of times the shaded portion fits into the whole bar. Depending on how much is left over, the process could repeat to determine the approximate size of the remaining fraction relative to the bar or to the shaded portion. (Alternatively, one could replicate the length of the bar to see what integer number of shaded lengths fit into what integer number of whole lengths.)

One could measure the shaded part and the whole bar with a ruler, then determine the relative size of the shaded part by dividing the first measurement by the second. The finer the divisions on the ruler, the better the approximation will be.

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1. How many solutions are there for the equation? x2 + 16 = 8x (Points : 1)
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4 0
3 years ago
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Carol is driving at 25 km/h when she sees a stop light turn yellow. If it takes her 1.2 s to begin braking, and the car's accele
I am Lyosha [343]

Answer:

The total distance she travels from the time she first sees the light turn until the car stops is 6.02 meters

Step-by-step explanation:

The car when Carol begins to hit the brakes is traveling with constant deceleration, that means we have to use uniformly accelerated motion equations to solve for the distance traveled, but first we need to analyze the given data.

Given information

  • Initial velocity,  v_i = 25 km/h
  • Final velocity,  v_f = 0
  • Time, t = 1.2 s
  • Acceleration, a= -4.0 \cfrac{m}{s^2}

Almost all information is on standard units except the initial velocity, so we can convert it to meters per second.

v_i = 25 \cfrac{km}{h} \times \cfrac{1h}{3600s}\times \cfrac{1000m}{1km}\\v_i=6.94 \cfrac ms

Also notice that the final velocity is 0 m/s, since the car stops at the end.

Setting up the motion equation.

Since we have constant acceleration and since the goal is to find the distance we can use the following equation for uniformly accelerated motion.

v_f^2 = v_i^2 +2ad

Here d is the distance traveled, replacing the given information we get

0=\left(6.94 \cfrac ms\right)^2 +2\left( -4 \cfrac{m}{s^2}\right)d

Solving for d

We can solve for the distance traveled d by moving every other number to the other side.

-\left(6.94 \cfrac ms\right)^2 =2\left( -4 \cfrac{m}{s^2}\right)d

We can divide both sides by -8

\cfrac{6.94^2}{8} m= d

So we get

\boxed{d=6.02     m}

The car has traveled 6.02 meters before stopping.

3 0
3 years ago
Whole number less than 5
Delicious77 [7]
1, 2, 3, and 4 are all whole numbers less than 5.
3 0
3 years ago
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Hello pls help me
qwelly [4]

Answer:

2(x-6) < 27

Step-by-step explanation:

kewords: Twice, difference, less

Twice makes us write this: 2(      )

Difference of a number and 6 (a number means variable) = 2(x-6)

less than 27 = 2(x - 6) < 27

6 0
2 years ago
What is the value of x in the equation 4x + 1.3 = -7.9
forsale [732]

Answer:

  • x = - 2.3

Step-by-step explanation:

  • 4x + 1.3 = -7.9
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