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nikdorinn [45]
3 years ago
7

A wooden board in the shape of a rectangular prism measures 0.3 mile by 2.1 miles by 0.1 mile and has a mass of 0.07 kilogram. W

hat is the density of the board? Enter your answer as a decimal in the box. Round only your final answer to the nearest tenth.
Mathematics
1 answer:
Maslowich3 years ago
6 0
The definition of density is given by:
 D = m / V
 Where,
 m: mass
 V: volume
 The volume of the rectangular prism is given by:
 V = (0.3) * (2.1) * (0.1)
 V = 0.063 mi ^ 3
 Substituting the values:
 D = 0.07 / 0.063
 D = 1.111111111 Kg / mi ^ 3
 Round to the nearest tenth:
 D = 1.1 Kg / mi ^ 3
 Answer:
 the density of the board is:
 D = 1.1 Kg / mi ^ 3
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If the national unemployment rate decreased at an annual rate of 2% per year for three consecutive years, then the rate decrease
VashaNatasha [74]

If the national unemployment rate decreased at an annual rate of 2% per year for three consecutive years, then the rate decreased by 5.88% over the 3-year period.

<h3>What is the rate of decrease over the 3-year period?</h3>

The rate of decrease would compound over the 3-year period. Thus, in order to determine the total rate of decline, the yearly rate of decline cannot be added.

Total rate of decline = (1 - yearly rate of decline)^(number of years)

(1 - 0.02)^3 = 5.88%

To learn more about compounding, please check: brainly.com/question/18760477

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5 0
2 years ago
2. Miss. Mead pays Miss. Brown $125.00 per week. How much money must Miss. Brown take in for
nadezda [96]

The question is incomplete:

1. A cosmetologist must double his/her salary before the employer con realize any profit from  his/her work,  Miss, Mead paid Miss, Adams $125,00 per week to start.

2. Miss. Mead pays Miss. Brown $125.00 per week. How much money must Miss. Brown take in for  services if Miss. Mead is to realize $50.00 profit on her work? (Conditions on salary are the same  as in problem 1)  

ODS

a. $275.00 b. $325.00 c. $250.00 d. $300.00

Answer:

d. $300.00

Step-by-step explanation:

Given that a cosmetologist must double her salary before the employer can realize any profit from  his/her work, for Miss. Mead to realize $50.00 profit on her work, you would have to determine the amount that doubles the salary of the cosmetologist and add the $50 needed as profit:

Salary= $125*2=$250

$250+$50= $300

According to this, the answer is that for Mead to realize $50.00 profit on her work, Miss. Brown must take $300.

4 0
4 years ago
A coin is tossed. What is the theoretical probability of the coin NOT showing tails?
Lelechka [254]

Answer:

50%

Step-by-step explanation:

its 50% it will land on head and 50% it will land on tails since there is only two sides on a coin

5 0
4 years ago
Read 2 more answers
Solve for x.<br><br> Help please
MAVERICK [17]
X = 10

The triangles are similar by SAS, so we can set up a proportion of their sides.

9/(33-9) = 12/(3x+2)
9/24 = 12/3x+2

Reduce
3/8 = 12/3x+2

Cross multiply
3(3x+2) = 12*8

Distribute and multiply
9x + 6 = 96

Subtract 6
9x = 90

Divide by 9
x = 10

Check:
9/24 = 12/3x+2
9/24 = 12/3*10 + 2
9/24 = 12/30 + 2
9/24 = 12/32
3/8 = 3/8 :)
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3 years ago
AWNSER plz as soon as possible
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Answer:

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Step-by-step explanation:

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