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miv72 [106K]
3 years ago
10

All copper has a density of 8.83g/cm3. True Or False.please help ​

Mathematics
2 answers:
Jlenok [28]3 years ago
8 0

Answer: No

Step-by-step explanation:

alexandr402 [8]3 years ago
6 0

Answer:

False

Step-by-step explanation:

Copper actually has about 8.96 g/cm3

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The cost of Ken’s car wash was $23.95. If he wants to give his detailer a 15% tip, about how much of a tip should he leave?
sergejj [24]

Answer:

$3.60

Step-by-step explanation:

15/100 x 23.95 = 3.5925

5 0
4 years ago
1. State whether the following is a classical or Bayesian (subjective) probability, and explain why (1 pt for correct id and 1 p
AleksAgata [21]

Answer:

a. Classical Probability.

b. Classical Probability.

c. Bayesian Probability

d. Bayesian Probability.

e. Classical Probability.

Explanation:

In classical probability, each event has an equal likelihood of occurring.

However, Bayesian probability is a probability based on belief or a state of knowledge.

a. The chance of getting a 5 on a fair 6-sided die is 1/6.

This is a Classical Probability. There are 6 sides and getting each side has an equal probability of 1/6.

b. The chance that the shelter-at-home restrictions in the SF Bay Area will be lifted by May 3 is 50%.

This is also a Classical Probability. The are two possible occurrences, either it will be lifted or not and each has an equal probability of 50%.

c. There is a 95% chance of an additional major correction (drop of 20% or more) in the stock market in the next 2 months.

This is an example of Bayesian Probability as it is based on the belief of the speaker probably from his/her analysis of the trend in the stock market.

d. The chance a baby will be born male is 51%.

This is an example of Bayesain Probability. Each gender is supposed to have an equal chance of 50%.

e. If you flip a fair coin many times, about 50% of the time you will have gotten heads.

In a fair coin, the Probability of getting a head or a tail is equal. Since the probability given is 50%, it is a Classical Probability.

5 0
3 years ago
The diagonals of an isosceles trapezoid are represented by x+10 and 2x+5.what is the value of x?​
DanielleElmas [232]

Answer:

x=5

Step-by-step explanation:

since it’s isosceles trapezoid, diagonals are equal.

x+10=2x+5

x=5

4 0
3 years ago
John Smith made a one year investment that generated a nominal return of 6% or $3000. The real return was $2000. What was the or
nata0808 [166]

The nominal value - without discounting the inflation rate - of income was $ 3000.

If the interest rate was 6%, a rule of three is enough to find the value of the original investment.

3000 - 6%

x - 100%

x = 50,000

The value of the investment was $ 50,000

In this case, the inflation rate also requires a simple calculation.

Inflation corroded $ 1000 dollars of income of $ 3000

Therefore the inflation rate will be 1000/3000 = 33.3%

3 0
3 years ago
A guy wire for a tree is 14 feet long. Making a 41° angle with the ground, how far is the base of the tree from the stake anchor
Andreas93 [3]
Draw the picture; you have a right triangle. The guy wire is the hypotenuse
You want the length of the base when the side opposite the 41 degree angle
is the tree.
You have an angle and the hypotenuse; the base is the side adjacent to the
41 degree angle.
EQUATION:
cos(41) = adjacent/hypotenuse = x/14
14cos(41) = x
x = 10.57 ft
5 0
3 years ago
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