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GarryVolchara [31]
3 years ago
14

Show the product -2• (-5) on the number line. Explain how you found your answer

Mathematics
1 answer:
inysia [295]3 years ago
8 0

Answer:

it would be difficult (or at least somewhat confusing) to try to diagram out this question with a drawing on a number line....

the concept here is that the -5, and -2 are NOT "subtracting" but "opposites"

so on a number line you can start at "-5" and draw an arrow to 5 and do the same for "-2"

then show the multiplication as a series of additions (5 2's added together)

Step-by-step explanation:

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Alex_Xolod [135]

Answer:

AC = 15.6

Step-by-step explanation:

AC = AE + EC

By he Pythagorean theorem,

A² + B² = C²

12² + 5² = AE²

144 + 25 = AE²

AE = √169

AE = 13

Find Angle AED

tan Angle AED = 12/5

Angle AED = tan-1 (12/5)

= 67.38°

Angle AED = Angle BEC

tan (67.38°) = BC/1

BC = 2.4

1² + 2.4² = EC²

6.76 = EC²

EC = √6.76

EC = 2.6

AC = 13 + 2.6

AC = 15.6

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In rectangle PQRS, PR = 18x – 28 and QS = x + 380. Find the value of x and the length of each diagonal.
Flauer [41]

Diagonals of a rectangle are congruent.


18x - 28 = x + 380


Solving for x, I get 17.


So, x = 17.


PR = 18x - 28


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QS = x + 380


QS = 17 + 380


QS = 397

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