In which of the following intervals are both the sine and cosine functions are decreasing?
Anonymous Quiz
18%
(π/4, 5π/4)
40%
(π/2, 5π/4)
18%
(π/2, 3π/2)
23%
(π/2, π)
If the magnitude of cross product of two vectors is equal to the magnitude of their dot product, then what is the angle between the two vectors?
Anonymous Quiz
45%
90°
16%
60°
7%
30°
32%
45°
SAT - Oromia 2017 April.pdf
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🔰Grade 12 model Examination
🔰Second semester
🔰Second semester
❤6
If a - b = 18.4 and a + b = 15, what is the value of a² - b²?
Anonymous Quiz
44%
276
21%
33.4
23%
184
13%
270.4
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Which of the following is the equation of circle whose center is C(2, -3), and its radius is 5 ?
Anonymous Quiz
9%
(x+2)² + (y - 3)² = 5
22%
(x + 2)² + (y - 3)² = 25
31%
(x - 2)² + (y + 3)² = 5
38%
(x - 2)² + (y + 3)² = 25
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The sum and product of two numbers are 12 and 35 respectively. Then the sum of their reciprocals will be:
Anonymous Quiz
50%
12/35
23%
1/35
17%
35/8
11%
7/32
If 10 men can do a piece of work in 12 days, the time taken by 12 men to do the same piece of work will be:
Anonymous Quiz
17%
12 days
19%
9 days
48%
10 days
16%
8 days
Which of the following statement is true about alkane and alkene?
Anonymous Quiz
76%
Alkanes are saturated hydrocarbo, whereas alkenes are unsaturated hydrocarbons.
14%
Alkanes are unsaturated hydrocarbon, whereas alkenes are saturated hydrocarbons.
8%
Both alkanes and alkenes are saturated hydrocarbons.
3%
Both alkanes and alkenes are unsaturated hydrocarbons.
Which one of the following is the fractional form of the decimal 0.777...?
Anonymous Quiz
57%
7/9
6%
9/7
25%
77/100
12%
7/10
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