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Stels [109]
3 years ago
7

Which of the following numbers is irrational? A. 0.25 B. .25 with a line on top C. 0.000000025 D. 0.002536785471264...

Mathematics
1 answer:
Alla [95]3 years ago
5 0
D. Because a number is irrational if it doesn't terminate or if it repeats over and over
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If one tosses a coin three times, write dow nthe possible observed number of heads and their probabilities
seropon [69]
You need to find the probability of Heads, Heads, Heads in 3 tosses;

P(HHH)= (1/2)(1/2)(1/2) <-- each toss has 2 possibilities and heads is one 
P(HHH)=1/8

Therefore, the probability of flipping 3 heads on a fair coin is 1/8 

Hope I helped :) 
6 0
3 years ago
What is the measure of angle Q to the nearest whole degree?<br> 43°<br> 49°<br> 53°<br> 58°
geniusboy [140]

Answer:

m∠Q ≈ 53°

Step-by-step explanation:

To find the measure of ∠Q, the law of cosines will need to be used. Lowercase letters represent the side lengths, while upper case letters represent angles.

In this situation, 'A' will be ∠Q. Therefore:

17² = 18² + 20² -2(18)(20)cosQ

Simplify:

289 = 324 + 400 -2(360)cosQ

Continue simplifying down:

-435 = -720cosQ

Divide both sides by '-720':

0.604 = cosQ

cos^{-1}Q = 0.604

m∠Q ≈ 52.83 or 53° rounded to the nearest whole degree.

3 0
3 years ago
A rental car company charges a base fee of $36.94 plus $0.60 per mile driven. If x represents the number of miles driven, which
Tom [10]
Answer: y=0.60x+36.94

To find the equation we just set y equal to the 0.60 cents times x miles plus the 36.94 base fee. Any questions just ask. Cheers
4 0
3 years ago
Need help with 50-51,thanks!
aleksley [76]

Well I don't know how to show work on this one.



50. 2 3/4 is between 2 and 3, three times farther from two than three. Draw a dot in approximately that locations and mark it 2 3/4.


51. 4 1/3 is between 4 and 5, twice as far from five as from four. Draw a dot and mark it 4 1/3.



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3 years ago
Solve the problem.<br> Find the diameter of a circle that has a circumference of 942 meters.
solong [7]
The answer to the problem is 299.85 m.
3 0
3 years ago
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