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rewona [7]
3 years ago
15

The cost of painting a circular traffic sign is $3.50 per square foot. How much, to the nearest dollar, will it cost to paint th

e sign if its diameter measures 36 inches?
Mathematics
1 answer:
lakkis [162]3 years ago
3 0

Answer:

The answer is $25

Explanation:

area of a circle = pi x r^2

using 3.14 for pi

radius = 36/2 =18

area = 3.14 x 18^2 = 1017.36 square inches

1 sq ft = 144"

1017.36/144 = 7.065 sq ft

7.065*3.50 = $24.73 to the nearest dollar = $25

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What is the exact decimal equivalent of 7 half’s 12
Ivenika [448]

The decimal equivalent of 7 half’s is the number in decimal form

The exact decimal equivalent of 7 half’s is 3.5

<h3>What is a decimal number?</h3>

A decimal number is a number represented by an integer and a fractional part

<h3>How to determine the decimal equivalant?</h3>

The number is given as:

7 halves

Express as product

7 * 1/2

Evaluate the product

3.5

Hence, the exact decimal equivalent of 7 half’s is 3.5

Read more about decimals at:

brainly.com/question/1827193

3 0
2 years ago
Find a value of the standard normal random variable Z, Call it Z0, such that
IRISSAK [1]
The answer is C hope this helped you out
8 0
3 years ago
A biased coin has a probability of 0.4 of coming up heads. What is the probability that when flipped one hundred times it comes
inn [45]

Using the binomial probability relation ; the probability that an head is obtained at least 50 times is 0.0271

<u>Using the binomial probability relation</u> :

  • P(x = x) = nCx * p^x * q^(n-x)
  • p = probability of success = 0.4
  • q = 1 - p = 0.6
  • n = number of trials = 100

P(x ≥ 50) = p(x = 50) + p(x = 51) + ...+ p(x = 100)

<u>Using a binomial probability calculator</u> :

P(x ≥ 100) = 0.0271

Therefore, the probability that atleast 50 heads are obtained in the trial is 0.0271

Learn more :brainly.com/question/12474772

5 0
3 years ago
The price of a skateboard is reduced by 25%. The original price was $120. Find the new price.
8_murik_8 [283]

New price = <u>90 dollars</u>

<u></u>

25% of 120 = 30

Price is reduced 25% from 120 so,

120 - 30 = 90

Amount of discount = 30

8 0
2 years ago
What is the answer<br><br><br>do you know<br><br>but I want it As a fraction
maks197457 [2]
It is 2 12/20 simplified is 2 6/10 simplified is 2 3/5
So if you want it simplified it is 2 6/10 but if you just want the answer I think it would be 2 3/5
Hope this is helpful
And have a great day
7 0
3 years ago
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