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insens350 [35]
3 years ago
15

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 <em>natural numbers.</em>

<em />

<em />

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:

= 279 - 30

= 249 cm²

5 0
2 years ago
400 hundred thousand 13 thousand 11 hundreds and 4 ones in standard form
VikaD [51]
400,000,014,104

should be your answer

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6 0
3 years ago
Read 2 more answers
Whats 231.2 out of 236.4 in percentage
densk [106]

Answer:

97.8

Step-by-step explanation:

231.2 is what % of 236.4 = 97.8%

5 0
3 years ago
Read 2 more answers
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.

<u>Cost of Center A:</u>

One time charge of $495 in one year.

<u>Cost of Center B:</u>

  • Flat $25 dollar sign up fee
  • $15 per month, so 15*12=180 dollars a year
  • $5 per aerobic class, so 5*52=260 dollars a year (given that Billy goes to class once a week) (<em>Note: There are 52 weeks in a year</em>)

Total cost = 25+180+260=465 dollars

Hence, Center B would cost 495-465=30 dollars cheaper.


ANSWER: Least expensive club for Billy to use for a year is Center B

5 0
3 years ago
Read 2 more answers
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

  Generally the margin of error is mathematically evaluated as

        MOE  =  Z_{\frac{\alpha }{2} } *  \frac{\sigma }{\sqrt{n} }

substituting values

         MOE  = 1.645*  \frac{ 9 }{\sqrt{45} }

         MOE  = 2.207

The  90%  confidence level interval is mathematically represented as

      \= x  -  MOE  <  \mu  <  \= x  +  MOE

substituting values

     16.9 -  2.207  <  \mu  <  16.9 +  2.207

    16.9 -  2.207  <  \mu  <  16.9 +  2.207

     14.7  <  \mu  <  19.1

         

3 0
3 years ago
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