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n200080 [17]
2 years ago
15

Q1. A fluorescent lamp takes in energy from the electricity supply at the rate of 18 joules each second. It gives out 3 joules o

f energy as light each second.
a. How much energy does the lamp give out each second?
Mathematics
1 answer:
Dmitrij [34]2 years ago
8 0

Answer:

15 joules

Step-by-step explanation:

SUBTRACT 3 FROM 18

18 JOULES-3 JOULES=15 JOULES

HOPE IT HELPS

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Nimfa-mama [501]

The measure of m∠J=90°, m∠G=55° and m∠H=35°

Step-by-step explanation:

Inscribed angles subtended by a diameter are right angles. Hence angle GJH =90°

The diameter GH and chord GJ intercepts an arc with a measure of 70°.The measure of an arc of a circle is equal to the measure of the central angle that intercepts the arc. Hence angle GOJ=70°. Radius of circle GO=OJ, which means triangle GOJ is an isosceles triangle thus ∠OJG=∠OGJ =(180° -70°) /2 = 55°. m∠G=55°

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Angles subtended by a diameter :brainly.com/question/10345730

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3 years ago
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LekaFEV [45]

Answer:

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2. The formula for the volume of a rectangular pyramid is V= lwh/3

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