3 years ago

Solve the system of equations. 2y-y=5 and 3x+2y=4

Mathematics

2 answers:

bogdanovich [222]3 years ago

7 0

Answer:

y=5 x=-2

Step-by-step explanation:

rewona [7]3 years ago

4 0

Answer:

Step-by-step explanation:

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DaniilM [7]

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3 years ago

find the measure of the central angle of a circle if it's minor are length is 14π and the radius is 18 inches

MrMuchimi

Step-by-step explanation:

Length of arc of a circle is given as:

$l = \frac{ \theta}{360 \degree} \times 2\pi \: r \\ \\ \therefore \: 14\pi = \frac{ \theta}{360 \degree} \times 2\pi \: \times 18 \\ \\ \therefore \:\theta = \frac{14\pi \times \: 360 \degree }{2\pi \: \times 18} \\ \\ \therefore \:\theta = \frac{7 \times \: 360 \degree }{18} \\ \\ \therefore \:\theta = 7 \times \: 20 \degree \\ \\ \huge \red{ \boxed{\therefore \:\theta = 140 \degree}}$