I need help with this

Mathematics

1 answer:

jeka57 [31]3 years ago

3 0

Answer:

see below

Step-by-step explanation:

The problem statement tells you the ratio of force to area is the same for all pairs. This means, for example, ...

3750/250 = 5625/x = y/420

Simplifying, this becomes the two equations ...

15 = 5625/x ⇒ x = 5625/15 = 375

15 = y/420 ⇒ y = 420·15 = 6300

The values of x and y are (x, y) = (375, 6300). . . . . matches choice C

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katrin [286]

Answer:

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B= 4

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E= -1

F= 4

G= -1

Step-by-step explanation:

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3 years ago

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sammy [17]

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3 years ago

Is QRS a right triangle? Why or why not?

Yuliya22 [10]

Answer:

Step-by-step explanation:

Using Pythagoras' identity to determine if the triangle is right

The square of the longest side should equal the sum of the squares on the other 2 sides, that is

QS² = RS² + QR² = 8² + 5² = 64 + 25 = 89 ( take the square root of both sides )

QS = $\sqrt{89}$