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PtichkaEL [24]
3 years ago
11

Is the expression 100x as a numerical expression or variable expression?

Mathematics
1 answer:
Kazeer [188]3 years ago
8 0
<span>numerical expression</span>
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The weights of cars passing over a bridge have a mean of 3,550 pounds and
Dovator [93]

The approximate probability that the weight of a randomly-selected car passing over the bridge is more than 4,000 pounds is 69%

Option C is the correct answer.

<h3>What is Probability ?</h3>

Probability is defined as the study of likeliness of an event to happen.

It has a range of 0 to 1.

It is given in the question that

The weights of cars passing over a bridge have a mean of 3,550 pounds and standard deviation of 870 pounds.

mean  = 3550

standard deviation,  = 870

Observed value, X = 4000

Z = (X-mean)/standard deviation = (4000-3550)/870 = 0.517

Probability of weight above 4000 lb

= P(X>4000) = P(z>Z) = P(z> 0.517) = 0.6985

The approximate probability that the weight of a randomly-selected car passing over the bridge is more than 4,000 pounds is 69%

To know more about Probability

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6 0
2 years ago
What is 1/2+p=-3 i need help
son4ous [18]

Answr:

p=−7/2

Step-by-step explanation:

Simplify both sides of the equation.

p+

1

2

=−3

Step 2: Subtract 1/2 from both sides.

p+

1

2

−

1

2

=−3−

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p=

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7 0
3 years ago
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Please can someone tell me the defenitions of each of these terms?
Xelga [282]
  1. A fee charged based on the total cost of things you buy. It is collected by the seller and added onto the price of the things bought. It's based on a percent set by the government.
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5 0
2 years ago
Can anyone help me out? thanks
Alik [6]

Answer:

450 cm

Step-by-step explanation:

12 degrees is 1/30 of the circumference because there are 360 degrees in a circle.

The minor arc length of 15 is in the same ratio to the circumference as  the 2 angles , so the circumference = 30 * 15 - 450 cm.

8 0
3 years ago
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Need help you guys 2.13X10^-5
tresset_1 [31]
0.0000213, that should be it.
8 0
3 years ago
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