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Elina [12.6K]
2 years ago
14

Help me? Show work so I can understand please and thank you!

Mathematics
2 answers:
charle [14.2K]2 years ago
7 0
29^2 - 20^2
841-200=641
Answer: 25.31
Vikentia [17]2 years ago
3 0

I think this is correct, Answer is <em><u>21</u></em>

Step-by-step explanation:

Step 1: Write down formula:                               a^2+b^2+c^2                  

Step 2: Plug in b and c value in formula:          a^2+20^2=29^2  

Step 3: Solve the exponents:                            a^2+400=841

Step 4: Subtract 400 from both sides:                   -400  -400

                                                                                     a^2=441

Step 5: Square root both sides:                                \sqrt{a^2}=\sqrt{441}

                                                                                     a=21

Step 6: 29+21:                    50

Step 7: 50-29:                     <u>21</u>

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4 0
3 years ago
16^3x+8^x+6<br><br>Could you please give me the steps as well for this problem? ​
BARSIC [14]

Answer:

x = 2

Step-by-step explanation:

16^{3x} = 8^{x+6} \\2^{4(3x)} = 2^{3(x+6)} --> (16 = 2^{4} and 8 = 2^{3} )

2^{12x} = 2^{3x+18}

Since the base number is 2, the exponents must equal each other.

So:

12x = 3x+18

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8 0
2 years ago
According to a study conducted in one city, 35% of adults in the city have credit card debts more than $2.000. A simple random s
BabaBlast [244]

Answer:

Binomial; \mu p=87.5, \sigma p=7.542

Step-by-step explanation:

  • a distribution is said be a binomial distribution iff
  1. The probability of success of that event( let it be p) is same for every trial
  2. each trial should have 2 outcome : p or (1-p) i.e, success or failure only.
  3. there are fixed number of trials (n)
  4. the trials are independent
  • here, the trials are obviously independent ( because, one person's debt doesn't influence the other person's)
  • here n=250
  • the probability of success(0.35) is same for every trial

(35/100=0.35 is the required p here)

  • \mu_{p} =n*p=250*\frac{35}{100} =250*0.35=87.5

[since, the formula for \mu _{p} =n*p ]

  • \sigma _{p} =\sqrt{n*(p)*(1-p)} = \sqrt{250*0.35*(1-0.35)} = 7.542 ( approximately)

[since, the formula for [tex]\sigma _{p} =\sqrt{n*(p)*(1-p)}

  • therefore, it is Binomial; \mu p=87.5, \sigma p=7.542

4 0
3 years ago
What is the mean of the values in the stem-and-leaf plot?<br><br><br> Enter your answer in the box.
BartSMP [9]

Answer:

The mean is the average of a set of data.

Example:

To find the mean, add up all of the numbers in the set and divide by the number of values that you added.

35 + 36 + 37 + 38 + 40 + 40 + 41 + 42 + 43 + 55 + 55 + 55 + 56 + 57 + 58 + 59 = 747

Then, divide by the number of values, which is 16.

747/16=46.68

7 0
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Answer:

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Step-by-step explanation:

6 0
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