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BabaBlast [244]
3 years ago
8

Suppose a triangle has sides 3, 4, and 5. Which of the following must be true?

Mathematics
1 answer:
ladessa [460]3 years ago
7 0

Answer:

a triangle as 3 sides

Step-by-step explanation:

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Help please I suck at math :(
andrew-mc [135]

Answer:

44m^2

Step-by-step explanation:

Separate the shape into two different rectangles. Then add the area of the rectangles together.

2 x 6 = 12

4 x 8 = 32

32 + 12 = 44

4 0
3 years ago
Read 2 more answers
Write 800 as the product of its prime factors.
Alex_Xolod [135]
800|2
800|2
400|2
200|2
100|2
50|2
25|5
5|5
1

800=2^5\cdot5^2


8 0
3 years ago
Prove that cos(2????) = 2cos2(????) − 1 for any real number ????.
Over [174]

Answer:

Sure

Step-by-step explanation:

6 0
3 years ago
2. Suppose over several years of offering AP Statistics, a high school finds that final exam scores are normally distributed wit
nirvana33 [79]

Answer:

By the Central Limit Theorem, the mean is 78, the standard deviation is s = \frac{6}{\sqrt{n}} and the shape is approximately normal.

Step-by-step explanation:

Central Limit Theorem

The Central Limit Theorem establishes that, for a normally distributed random variable X, with mean \mu and standard deviation \sigma, the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean \mu and standard deviation s = \frac{\sigma}{\sqrt{n}}.

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

Mean of 78 and a standard deviation of 6

This means that \mu = 78, \sigma = 6

Samples of n:

This means that the standard deviation is:

s = \frac{\sigma}{\sqrt{n}} = \frac{6}{\sqrt{n}}

What are the mean, standard deviation, and shape of the distribution of x-bar for n?

By the Central Limit Theorem, the mean is 78, the standard deviation is s = \frac{6}{\sqrt{n}} and the shape is approximately normal.

6 0
3 years ago
Kevin has $24 to buy a gift for his cousin he found a gift for $22 with a 5% sales tax added on will Kevin have enough money to
STatiana [176]

Kevin will have enough. He will need to pay $23.10.

5% of $22 is $1.10.

22+1.10=23.10

23.10 is less than 24

6 0
3 years ago
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