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sineoko [7]
2 years ago
13

Please help with these I am stuck

Mathematics
1 answer:
g100num [7]2 years ago
8 0

Answer:

31.) x = 3

32.) y = 49

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Mr. Deveney bought 4 DVDs for $25.20. What was the price per DVD?
ollegr [7]

Answer:

$6.30 per DVD

Step-by-step explanation:

25.20/4= 6.3

7 0
2 years ago
A plumber is fitting A water pipe that is 3/4 foot long on to a water pipe that is 2/12 foot long.How long will the finish pipe
viktelen [127]
Add 3/4 foot to 2/12 foot.  The LCD here is 12.

Thus, add 9/12 foot to 2/12 foot.  Answer:  11/12 foot.
 
 Are you sure you copied down that "2/12" correctly?  Note that 2/12 = 1/6 
3 0
3 years ago
Read 2 more answers
HELLllllllPPppppp !!!
Tasya [4]

9514 1404 393

Answer:

 BC ≈ 17.0 (neither Crow nor Toad is correct)

Step-by-step explanation:

The left-side ratio of (2+4)/4 = 3/2 suggests BC is 3/2 times the length DE. If that were the case, BC = (3/2)(11) = 16.5, as Crow says.

The right-side ratio of (5+9)/9 = 14/9 suggests that BC 9 is 14/9 times the length DE. If that were the case, BC = (14/9)(11) = 154/9 = 17 1/9 ≈ 17.1, as Toad says.

The different ratios of the two sides (3/2 vs 14/9) tell you that the triangles are NOT similar, so the length of BC cannot be found by referring to the ratios of the given sides.

Rather, the Law of Cosines must be invoked, first to find angle A (109.471°), then to use that angle to compute the length of BC given the side lengths AB and AC. That computation gives BC ≈ 16.971. (See the second attachment.)

5 0
3 years ago
The square root of 3 multiplied by the cube root of 2
Nutka1998 [239]

Answer:

2.18224727194 is what I got

Step-by-step explanation:

The square root of 3 is 1.73205080757 and you just multiply that by 1.25992104989(which is the cube root of 2) and then you get the answer of 2.18224727194

8 0
3 years ago
What is the solution set for 7x – 3 = 18, given the replacement set {0, 1,2,3,4} ? O
yawa3891 [41]

Answer:

X = 3

Step-by-step explanation:

Given the expression :7x - 3 = 18

To obtain the solution set ; we solve for X in the equation ;

7x - 3 = 18

Add 3 to both sides

7x - 3 + 3 = 18 + 3

7x = 21

Divide both sides by 7

7x / 7 = 21 / 7

x = 3

Hence, x = 3

4 0
3 years ago
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