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rosijanka [135]
3 years ago
15

In Antartica the temperature can change drastically between day and night. At 3:00 pm, the tempature was a chilly 7 degrees Cels

ius. At that time, it began to drop at steady rate of 6 degrees Celsius every hour . What was the temperature at 7:00 pm?
Mathematics
1 answer:
NikAS [45]3 years ago
4 0

Answer:

T = -17\,^{\textdegree}C

Step-by-step explanation:

The temperature at 7:00 pm is:

T = 7\,^{\textdegree}C + \left(-6\,\frac{^{\textdegree}C}{h}  \right)\cdot (4\,h)

T = -17\,^{\textdegree}C

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jenyasd209 [6]

Answer:

-8/1

Step-by-step explanation:

Perpendicular lines have opposite slopes., meaning the signs are opposite, and the numerator and denominator are flipped.

Here's another example:

If line a had a slope of 4/5, line b would have a slope of -5/4, if the lines are perpendicular.

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2 years ago
Does anyone know this??
blagie [28]

Answer:

x = 38, y = 4

Step-by-step explanation:

Since AB = BC  then the triangle is isosceles and the base angles are congruent, that is

∠ DAB = ∠ DCB = 52°

Subtract the sum of the base angle from 180° for ∠ ABC

∠ ABC = 180° - (52 + 52)° = 180° - 104° = 76°

Note that ∠ ABD = ∠ CBD, thus

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BD bisects the side AC, thus DC = AD = 4

Thus y = 4

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<em>Vcube = 1cm×1cm×1cm = 1 cm³</em>

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<em>If this cube is dropped into a 28ml of water the new reading will be 29 ml.</em>

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