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Ad libitum [116K]
2 years ago
13

Help Me !!! ASAP!!!!

Mathematics
1 answer:
bekas [8.4K]2 years ago
4 0

Answer:

#7 is 40

#8 is 50

#9 is 90

#10 is 180

#11 is 140

#12 is 130

#13 is 220

Sorry I have to go

Step-by-step explanation:

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What expression is equivalent to 3(x-2)
fredd [130]

Answer:

3x - 6

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
If five numbers are selected at random from the set {1,2,3,...,20}, what is the probability that their minimum is larger than 5?
Zanzabum

Answer:

the probability that their minimum is larger than 5 is 0.2373

Step-by-step explanation:

For calculate the probability we need to make a división between the total ways to selected the 5 numbers and the ways to select the five numbers in which every number is larger than 5.

So the number of possibilities to select 5 numbers from 20 is:

<u>20                </u> * <u>      20         </u>*  <u>        20     </u> *<u>        20         </u>* <u>       20 </u>

First number  2nd number   3rd number  4th number   5th number

Taking into account that a number can be chosen more than once, and the order in which you select the numbers matters, for every position we have 20 options so, there are  20^{5} ways to select 5 numbers.

Then the number of possibilities in which their minimum number is larger than 5 is calculate as:

<u>15                </u> * <u>      15         </u>*  <u>           15     </u> *<u>        15          </u>* <u>       15 </u>

First number  2nd number   3rd number  4th number   5th number

This time for every option we can choose number from 6 to 20, so we have 15 numbers for every option and the total ways that satisfy the condition are  15^{5}

So the probability P can be calculate as:

P=\frac{15^{5} }{20^{5} } \\P=0.2373

Then the probability that their minimum is larger than 5 is 0.2373

7 0
3 years ago
How do I solve 3= log8+3log x?
taurus [48]

<span>3 = log(8) + log(x³) </span>

<span>When adding logs, you are multiplying the terms altogether. </span>

<span>3 = log(8x³) </span>

<span>Then, by log_a b = n ==> aⁿ = b: </span>

<span>10³ = 8x³ [Since the base is not given, I assume that the base is 10] </span>
<span>1000 = 8x³ </span>

<span>Finally, solve for x. </span>

<span>1000/8 = x³ </span>
<span>x³ = 125 </span>
<span>x = (125)^(1/3) . . .Set both sides to the power of 1/3. </span>
<span>x = 5 </span>

<span>Hence, x = 5. </span>
3 0
2 years ago
3 5/5
MAXImum [283]

Answer:

4

Step-by-step explanation:

7 0
3 years ago
I am a4 digit even# between 4,000&amp;5,000. The sum of my digits is 16. The ones digit and hundreds digit are the same the tens
gregori [183]
4444

I hope this helps!
3 0
3 years ago
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