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Degger [83]
3 years ago
8

PLZ HELP MEEE !!!!!!!!!!

Mathematics
2 answers:
Montano1993 [528]3 years ago
7 0

Answer:

A - 4/13ths is a larger number

B-  3/10ths is a ratoinal mumner


jasenka [17]3 years ago
6 0

Answer:

<em>A. 4/13 > 3/10</em>

<em>B. 79/260</em>

Step-by-step explanation:

Use a common denominator.

LCM = 13 * 10 = 130

4/13 = 40/130

3/10 = 39/130

A. 40/130 is greater than 39/130, so 4/13 is greater than 3/10

B. For example, 39.5/130 is between 39/130 and 40/130

39.5/130 = 79/260

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The diameter of a circle is 4cm. Find it area to nearewt tenth.​
DIA [1.3K]

Answer:

12.6cm

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
What is a good estimate for 1,025
4vir4ik [10]
1000 is a good estimate
8 0
3 years ago
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Helpi accendintly made the question I just posted 5 points but this one is 50
Umnica [9.8K]

(a) For any probability distribution, the total probability must be 1. That is, the area under the probability density curve must be equal to 1.

The empirical rule for normal distributions says

• approximately 68% of the distribution lies within 1 standard deviation of the mean

• approx. 95% lies within 2 s.d. of the mean

• approx. 99.7% lies within 3 s.d. of the mean

In this case, with mean 3500 and s.d. 470, this translates to

• Pr(3500 - 470 < X < 3500 + 470) = Pr(3030 < X < 3970) ≈ 0.68

• Pr(3500 - 2*470 < X < 3500 + 2*470) = Pr(2560 < X < 4440) ≈ 0.95

• Pr(3500 - 3*470 < X < 3500 + 3*470) = Pr(2090 < X < 4910) ≈ 0.997

Continuous probability distributions also have the property that

Pr(a < X < b) = Pr(a < X < c) + Pr(c < X < b)

if a < c < b.

Combining all these properties, we can find the probabilities for each of the 8 regions in the graph to be (from left to right)

• Pr(-∞ < X < 2090) ≈ (1 - 0.997)/2 ≈ 0.0015

• Pr(2090 < X < 2560) ≈ (1 - 0.95 - 2*0.0015)/2 ≈ 0.0235

• Pr(2560 < X < 3030) ≈ (1 - 0.68 - 2*0.0235 - 2*0.0015)/2 ≈ 0.135

• Pr(3030 < X < 3500) ≈ 0.68/2 ≈ 0.34

and since the distribution is symmetric about its mean, we already know the remaining probabilities,

• Pr(3500 < X < 3970) ≈ 0.34

• Pr(3970 < X < 4440) ≈ 0.135

• Pr(4440 < X< 4910) ≈ 0.0235

• Pr(4910 < X < ∞) ≈ 0.0015

(b) Per the rule, 99.7% of babies would weight between 2090 and 4910 grams.

(c) The proportion of babies weighing less than 3030 grams is the sum of the proportions of babies weighing less than 2090, between 2090 and 2560, and between 2560 and 3030 grams. So

Pr(X < 3030) = Pr(-∞ < X < 2090) + Pr(2090 < X < 2560) + P(2560 < X < 3030)

Pr(X < 3030) ≈ 0.0015 + 0.0235 + 0.135

Pr(X < 3030) ≈ 0.16 = 16%

(d) Similarly,

Pr(X > 2560) = Pr(2560 < X < 3030) + Pr(3030 < X < 3500) + … + Pr(4910 < X < ∞)

Pr(X > 2560) ≈ 0.135 + 0.34 + 0.34 + 0.135 + 0.0235 + 0.0015

Pr(X > 2560) ≈ 0.975 = 97.5%

8 0
2 years ago
Which equation represents f(x)?
Afina-wow [57]

Answer: The answer is A

Step-by-step explanation:

Hope this helps :)

4 0
3 years ago
Help plz :) <br><br><br> Solve for A <br><br> A.45 <br> B.25<br> C.115<br> D.10
Tatiana [17]
Its a right angle so 65 take away from 90 is 25
6 0
3 years ago
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