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2 answers:
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Answer:
m∠ADC = 132°
Step-by-step explanation:
From the figure attached,
By applying sine rule in ΔABD,
sin(∠ADB) =
= 0.74231
m∠ADB =
= 47.92°
≈ 48°
m∠ADC + m∠ADB = 180° [Linear pair of angles]
m∠ADC + 48° = 180°
m∠ADC = 180° - 48°
m∠ADC = 132°
Answer:
3.
Step-by-step explanation:
I think your question missed key information, allow me to add in and hope it will fit the orginal one. Please have a look at the attached photo
My answer;
We use oder of operation to solve this question
We have BEDMAS, which means:
- B - Brackets
- E - Exponents
- D - Division
- M - Multiplication
- A - Addition
- S - Subtraction
In 4 answer, only answer is correct:
= (3*25 +4)
= (79 + 4)
= *83
= 8*83
= 664
