Answer:
c.
Step-by-step explanation:
That is, the number of boys (d) is (=) 2 more than (2 +) 4 times the number of girls (4X). So your answer is C
C = πd [C=circumference, d=<span>diameter, </span> π≈3.14]
20 = 3.14 · d
d = 20 / 3.14 ≈ 6.37 cm
X = -5.35
Sorry if I'm wrong
Answer:
If you rotate the triangles so that they look the same, one side of both of them are labeled. This gives you the fraction 9/12, or 3/4. The smaller triangle is 3/4th of the larger one. If the larger triangle has 4 on one side, then let's make the equation 3/4 = y/4. The length of y is 3. :)
Answer: 554
Step-by-step explanation:
Formula we use to find the sample size :
Given : Standard deviation :
Margin of error : E=one quarter hour = 0.25 hour
Two-tailed , Critical value use for 0.95 degree of confidence:
i.e.
Hence, the required sample size = 554
i.e. 554 executives should be surveyed.