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3 years ago

15

A submarine descends 100 meters from the oceans surface.the submarine ascends 40 meters and then descends 90 meters. write an in

teger that represents the return to the surface.

1 answer:

vivado [14]3 years ago

6 0

I believe the answer is -230

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Mario traced this trapezoid

galina1969 [7]

Answer:

126

Step-by-step explanation:

7x6=42

7x6÷2=42÷2=21

42+21=63

63+63=126

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3 years ago

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Jeremy sprinted for 123 seconds and rested. Then he sprinted for 157 seconds, rested, and sprinted again for 195 seconds. Estima

Paraphin [41]

480 aproxmately if you round the numbers then add them up

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3 years ago

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Nostrana [21]

True. Not sure if this is a true or false question but its true. Have a nice day and blessed be!

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3 years ago

What are the roots of this function? f(x) = x2 – 8x + 12 A) {2, 6} B) {8, 12} C) {-3, -4} D) {-4, -4}

soldi70 [24.7K]

Answer:

A.

Step-by-step explanation:

delta = $b^{2} - 4ac = (-8)^{2}-4*1*12 = 64 - 48 = 16$

$x_{1} = \frac{b-\sqrt{delta}}{2a} = \frac{8+4}{2} = 6$

$x_{2} = \frac{b+\sqrt{delta}}{2a} = \frac{8-4}{2} = 2$

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3 years ago