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3 years ago

PLEASE HELP DUE SOON! WILL GIVE BRAINLIEST AND POINTS!

Mathematics

2 answers:

Fynjy0 [20]3 years ago

3 0

3. 6/8/10 is twice the common Pythagorean Triple 3/4/5.

Answer: A. 10

4. 3/4/5 is a Pythagorean Triple because they're three natural numbers that satisfy a²+b²=c^2, here 3²+4²=5².

Answer: C

Non-zero whole numbers are called natural numbers.

Aleksandr-060686 [28]3 years ago

3 0

Answer:

3 10

4 C yes it is a pythagorean triple 3^2 +4^2 = 5^2

Step-by-step explanation:

We can find the unknown side by using the Pythagorean theorem

a^2 +b^2 = c^2

6^2 +8^2 = c^2

36+64 =c^2

100 = c^2

Take the square root of each side

sqrt(100) = sqrt(c^2)

10 = c

4. a^2 +b^2 = c^2

3^2 +4^2 = 5^2

9+16= 5^2

25 = 25

Since the numbers fit the Pythagorean theorem, it is a Pythagorean triple

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What is the area of this composite figure?

Gelneren [198K]

Answer:

249 centimeters squared

Step-by-step Explanation:

The area of the rectangle: l x w, where l is the length and w is the width.

= 15.5 x 18

= 279

Area of the smaller rectangle: l x w, where l is the length and w is the width.

= 4 x 7.5

= 30

We do not need this 30.

Area of the shaded region:

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2 years ago

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3 years ago

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Whats 231.2 out of 236.4 in percentage

densk [106]

Answer:

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Step-by-step explanation:

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3 years ago

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Billy anderson is choosing between two fitness centers. Center A charges $495 per year for unlimited use of all facilities. Cent

GREYUIT [131]

Let's compare the cost of both the centers.

Cost of Center A:

One time charge of $495 in one year.

Cost of Center B:

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Construct the confidence interval for the population mean mu. c = 0.90, x = 16.9, s = 9.0, and n = 45. A 90% confidence inte

Georgia [21]

Answer:

The 90% confidence interval for population mean is $14.7 < \mu < 19.1$

Step-by-step explanation:

From the question we are told that

The sample mean is $\= x = 16.9$

The confidence level is $C = 0.90$

The sample size is $n = 45$

The standard deviation

Now given that the confidence level is 0.90 the level of significance is mathematically evaluated as

$\alpha = 1-0.90$

$\alpha = 0.10$

Next we obtain the critical value of $\frac{\alpha }{2}$ from the standardized normal distribution table. The values is $Z_{\frac{\alpha }{2} } = 1.645$

The reason we are obtaining critical values for $\frac{\alpha }{2}$ instead of that of $\alpha$ is because $\alpha$ represents the area under the normal curve where the confidence level 1 - $\alpha$ (90%) did not cover which include both the left and right tail while $\frac{\alpha }{2}$ is just considering the area of one tail which is what we required calculate the margin of error