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3 years ago

Please help fast ill give brainest

Mathematics

2 answers:

tia_tia [17]3 years ago

8 0

make a graph and put the weeks and the change wich is -20 a day until the end of the four weeks

:every week 4 the city gets -20 degrees celsius colder. This means that every 4 weeks the tempature decreases then goes bac kto its origonal

VLD [36.1K]3 years ago

8 0

4 weeks change = -20

1 week change = -5

If x is the temperature at the start of the week:

A: (4x-20)/4

B: Change per week = x-5 This means that the temperature goes down by 5 degrees per week, with x being the temperature at the start of the week.

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3 years ago

4sinθ – 1 = - 3 for 0<θ< 360

EastWind [94]

Answer:

$\theta = 210^\circ$ or $\theta = 330^\circ$

Step-by-step explanation:

$4 \sin \theta - 1 = -3$

$4 \sin \theta = -2$

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For sin θ = 0.5, the reference angle is θ = 30 deg.

$\sin 30^\circ = 0.5$

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