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navik [9.2K]
3 years ago
9

Solve.

Mathematics
1 answer:
adoni [48]3 years ago
5 0
6+(-2)+2•(-8)•42=6-2+(-16)•42=4+(-672)=4-672=-668
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If the length of the legs of a right triangle are 5 m and 7 m, what is the length of the hypotenuse?
irakobra [83]

Answer:

c = 8.60232526704263

c \approx8.6

Step-by-step explanation:

{c}^{2}  =  {a}^{2}  +  {b}^{2}

c =  \sqrt{ {a}^{2}  +  {b}^{2} }

c =  \sqrt{ {5}^{2}  +  {7}^{2} }

c =  \sqrt{25 + 49}

c =  \sqrt{74}

c = 8.60232526704263

c \approx8.6

7 0
2 years ago
Please help it’s timed
jeka57 [31]

Answer: The answer is 13/54

Step-by-step explanation:

52 people out of 216 do not want the stadium, so the fraction would be 52/216. 52/216 simplified would be 13/54.

8 0
3 years ago
Find the value of y in the following expression if x = 5 and type the result in the empty box.
ValentinkaMS [17]

Answer:

3.4 is the answer i think

Step-by-step explanation:

3 0
2 years ago
(24-2)180 whats the answer?
Nookie1986 [14]

Answer:

3960 is the answer

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
PLEASE HELP!!This is joshs solution for the equation x^2-6x-7=0: x^2-6x-7=0
iren [92.7K]

Answer:

  no. see below

Step-by-step explanation:

This much of Josh's working is correct:

  x^2-6x=7

  x^2-6x+9=7+9

  (x-3)^2=16

At this point Josh apparently overlooked the fact that he needed to take the square root of both sides of the equation. Had he done that, he would have ...

  x -3 = ±4

  x = 3+4 . . . or . . . 3 -4

  x = 7 or -1

_____

Josh reported values of x that would match ...

  x -3 = ±16

He <em>violated the equal sign</em> by taking the square root on the left, and multiplying by ±1 on the right. Doing different operations on the two sides of the equation will mean the value of x is changed to something other than what you're looking for.

4 0
2 years ago
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