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Flura [38]
3 years ago
9

PLZ HELP ASAP SIMILARITY

Mathematics
1 answer:
RSB [31]3 years ago
6 0
CD/DB=AC/AB
DB=3.8; AC=4.6; AB=6.8
CD/3.8=4.6/6.8
Solving for CD:
CD=3.8*4.6/6.8
CD=2.570588235
Rounded to one decimal place:
CD=2.6

Answer: The length of CD is 2.6
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Write the expression in terms of sin x and cos x only. sin(2x)+cos(3x)
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R(x) = 60x - 0.2x^2

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Any help would be nice
Snowcat [4.5K]

Answer:

a=3

Step-by-step explanation:

if you are solving for a

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emma will roll two number cubes labeled 1 through 6. She will record the sum of the two numbers after each roll. She will roll t
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Answer:

75 times

Step-by-step explanation:

First of all let's ook at the 36 possible outcomes and their sums.

2=1,1

3=1,2 2,1

4=1,3 ; 2,2 ; 3,1

5=1,4 ; 2,3 ; 3,2 ; 4,1

6=1,5 ; 2,4 ; 3,3 ; 4,2 ; 5,1

7=1,6 ; 2,5 ; 3,4 ; 4,3 ; 5,2 ; 6,1

8=2,6 ; 3,5 ; 4,4 ; 5,3 ; 6,2

9=3,6 ; 4,5 ; 5,4 ; 6,3

10=4,6 ; 5,5 ; 6,4

11=5,6 ; 6,5

12=6,6

Looking at the above, there are 4 sums equal to 5 out of a total of 36 sums.

Thus, probability of getting a sum equal to 5 is;

P(5) = 5/36

Now,since the cubes are rolled 540 times, number of times a sum equal to 5 will appear will be;

(5/36) x 540 = 75 times

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