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Svetlanka [38]
3 years ago
8

What is the surface area of the triangular below

Mathematics
2 answers:
ikadub [295]3 years ago
8 0
The answer is a question 13,272
g100num [7]3 years ago
4 0
The answer is A. I’m pretty sure
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Geometry Question find the area of the circle
olasank [31]
Formula for the area of a circle is Pi*radius squared
So, we do Pi*2^2 which is 12.57
8 0
3 years ago
Read 2 more answers
Prove that 3:8 is equivalent to 12:32 use a diagrams your answer
maxonik [38]
3×4= 12
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8×4=32 Thus is how you get your answer just find the GCD greatest common denominator of 3 and 8?
6 0
2 years ago
Suppose that IQ scores have a bell-shaped distribution with a mean of 104 and a standard deviation of 15. Using the empirical ru
Harlamova29_29 [7]

Answer:

1.35%

Step-by-step explanation:

Suppose that IQ scores have a bell-shaped distribution with a mean of 104 and a standard deviation of 15. Using the empirical rule, what ? Please do not round your answer.

Empirical rule formula states that:

95% of data falls within 2 standard deviations from the mean - between μ – 2σ and μ + 2σ .

99.7% of data falls within 3 standard deviations from the mean - between μ - 3σ and μ + 3σ .

We don't know the number of Standard deviation yet , hence:

Mean = 104

Standard deviation = 15.

At least 59

Hence:

104 - 15x = 59

104 - 59 = 15x

45 = 15x

x = 45/15

x = 3

Hence, At least 59 is 3 standard deviations away from the mean on one side of the distribution thus,

99.7% of data falls within 3 standard deviations from the mean - between μ - 3σ and μ + 3σ .

100% - 99.7%

= 0.003

Since it is on one side of the distribution:

= 1.5% - 0.3%

= 0.015 - 0.0015

= 0.00135

Converting to percentage

= 1.35%

The percentage of IQ scores that are at least 59 is 1.35%

5 0
3 years ago
Which expression is equivalent to 5y-3x+2
Amanda [17]
(3x+2)-5y
The Distributive property tells us that we can do this.
7 0
3 years ago
Read 2 more answers
R= {(-3, -2), (-3, 0), (-1, 2), (1, 2)}
swat32
Domains -3,-1,1
hope this helps
8 0
3 years ago
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