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stiv31 [10]
3 years ago
6

A combination lock requires 4 selections of numbers, each from 1 to 20. • how many different combinations are there? • suppose t

hat the lock is constructed in such a way that no number maybe used twice. how many different combinations are possible?
Mathematics
1 answer:
slamgirl [31]3 years ago
6 0
NUmber of combination = 20 x 19 x 18 x 17 = 116 280

Answer:  116 280
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Find the area of the figure.<br><br> A) 114 cm2 <br> B) 350 cm2 <br> C) 418 cm2 <br> D) 447 cm2
Roman55 [17]

Answer:

C.) 418 cm²

I hope this helped you : )

Step-by-step explanation:

First, you find the area of the square:

19 cm x 19 cm = 361 cm

Next, you find the area of the triangle:

(19 cm x 6 cm) ÷2 =57 cm

Last, you add the two:

361 cm + 57 cm = 418 cm²

5 0
3 years ago
Read 2 more answers
What is the solution to the equation show your work<br> 3/5(x-5/8) =1/12-x+7/8
Nonamiya [84]

1. distribute

 step 1:              3                  3

                        ----- ×   X =  ------X

                          5                  5

 

                3               5           3           Ima convert this into a decimal

            ------- ×   -  -----  = -  ------      ----> negative .375

                5              8            8


2. write the problem now

        3                          1              7

      ----- X - 0.375 =    ---- - X +  ----

        5                         12             8


3. I would convert them into decimals and solve

      0.6x - 0.375 = 0.08 - x + 0.875

        +x                         +x

--------------------------------------------------

      1.6x - 0.375 = 0.08 + 0.876

         1.6x - 0.375 = 0.956

                  +0.375   +0.375

--------------------------------------------------

      1.6x = 1.331

      ------    -------

      1.6        1.6

---------------------------------------------------

        x = 0.831875


rounded up : 0.83

3 0
3 years ago
Read 2 more answers
Solve the equation for exact solutions over the interval [0, 2π]. <br><br> cos2x=−12
Aleks04 [339]

Answer:

NO SOLUTION

Step-by-step explanation:

The value of cosines is between -1 and 1

As a result, it will never goes to -12 no matter what

3 0
3 years ago
Which additional information is needed to solve this problem?
liq [111]
Hi there!

The answer is B.
the cost of the game.

We need to know the cost of the game in order to find out how many weeks John has to save money. If we don't know this price, we'll never know whether John has saved enough money.

We can find out the total amount of money John can save in 1 week (so A. is not the answer). The amount of money John earns per hour doesn't matter to answer the question (so C. is wrong).

~ Hope this helps you!
8 0
3 years ago
Read 2 more answers
Let a, b, c be the lengths of sides of a triangle; a=4.8, b=0.23, and c is a whole number. Find c.
BaLLatris [955]

\sqrt{4.8 {}^2{ +0.23 {}^{2} } }
If you solve it, the answer will be

C= 4.80

Seeing as its supposed to be a whole number, you will round up, so it will be 5
4 0
3 years ago
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