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EST I | Math | June 2021 | section 1 — Preview 0 / 5 answered
1
Intermediate 1
1. Isolate D.
A
A. $D = 2\sqrt{\frac{\pi l}{P}}$
B
B. $D = \frac{1}{2}\sqrt{\frac{P}{\pi l}}$
C
C. $D = (\frac{P}{4\pi l})^2$
D
D. $D = \sqrt{\frac{P}{2\pi l}}$
2
Intermediate 2
2. What is the relationship between I’ and I?
A
A. I’ = I
B
B. I’= 4 I
C
C. I’ = I / 2
D
D. I’ = I / 4
3
Intermediate 3
3. Which of the following terms must change?
A
A. 7
B
B. h
C
C. d
D
D. None of the above
4
Intermediate 4
4. In the xy-plane, the equation of the line (d) passing through A(-1,4) and perpendicular to line 3x-2y = 5 is:
A
A. $y = \frac{3}{2}x + \frac{11}{2}$
B
B. $y = -\frac{3}{2}x + \frac{5}{2}$
C
C. $y = -\frac{2}{3}x + \frac{14}{3}$
D
D. $y = -\frac{2}{3}x + \frac{10}{3}$
5
Intermediate 5
5. Which of the following is the best interpretation of the researcher’s findings?
A
A. Most water bottles in the market have a PH between 7.05 and 7.55
B
B. All water bottles in the market have a PH between 7.05 and 7.55
C
C. Any PH between 7.05 and 7.55 is a plausible value for the mean PH
D
D. Any PH between 7.05 and 7.55 is a plausible value for the mean PH of the water bottles in the market
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