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Harrizon [31]
3 years ago
5

What is the decimal expansion of 4/5 A)0.8 B) 4.5 C)1.25 D)0.45

Mathematics
2 answers:
Svet_ta [14]3 years ago
7 0
Your answer is A 0.8 hope it helps:)
ddd [48]3 years ago
6 0
The answer to your question that your asking is A, 0.8 because 1/5 - 0.2 , is 4 x 1/5 = 0.8!
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Area of triangle where A=50, b=31, c=18
Mrac [35]
Use Heron's Formula:
s means semi-perimeter = (50 + 31 + 18) / 2 = 99 / 2 =
49.5
area = sq root [(s * (s-a) * (s-b) * (s-c)]
area = sq root [(49.5 * (s-a) * (s-b) * (s-c)]

This will NOT form a triangle.  The longest side (50) is greater than the sum of the other 2 sides.

Source:
http://www.1728.org/trianinq.htm

 


5 0
4 years ago
X = −3 y = 4 and z = −5 <br><br> Work out the value of x + 2y − 3z
solniwko [45]

Answer:

20

Step-by-step explanation:

-3+ 2(4) - 3(-5)

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4 0
3 years ago
simple random sample from a population with a normal distribution of 99 body temperatures has x overbarequals98.20degrees Upper
Verizon [17]

Answer:

Step-by-step explanation:

Let x be the normal body temperature

X is N(99, sigma)

Sample mean x bar = 98.2 and s = 0.63

Margin of error = Z critical * 0.63 = 1.95 *0.63 = 1.2285

It is safe since 1.5 <1.96 critical value of z at 95%

7 0
3 years ago
You decide to put $2,000 in a savings account to save for a $3,000 downpayment on a new car. If the account has an interest rate
DaniilM [7]

Answer:

10.153 years

Step-by-step explanation:

The future value of such an investment is given by ...

FV = P·(1 +r/12)^(12t)

where P is the principal invested, FV is the future value of it, r is the annual interest rate, and t is the number of years.

Dividing by P and taking the log, we have ...

FV/P = (1 +r/12)^(12t)

log(FV/P) = 12t·log(1 +r/12)

Dividing by the coefficient of t gives ...

t = log(FV/P)/log(1 +r/12)/12 = log(3000/2000)/log(1 +.003333...)/12 ≈ 121.842/12

t ≈ 10.153 . . . years

6 0
3 years ago
In a basketball tournament, Team A scored 5 less than twice as many points as Team B. Team C scored 80 more points than Team B.
bulgar [2K]

Answer: The correct answer is B or Team C scored 307 points.

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
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