-2x + 7 = -32 i need all the steps

Mathematics

2 answers:

iris [78.8K]2 years ago

7 0

Answer:

x = 19.5

Step-by-step explanation:

-2x + 7 = -32 (subtract 7 on both sides)

-7 -7

-2x = -39 (Divide by -2)

x = 19.5

qaws [65]2 years ago

5 0

Answer:

first take the like terms of the equation take 7to the other side to make x as a subject of the formula then divide both side by -2 u will get 19.5 as the answer

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

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Step-by-step explanation:

Length of arc of a circle is given as:

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