Three out of twenty toothbrushes are defective, indicating an initial probability of picking one that is defective on the first attempt is 3/20. On the second attempt, because one defective toothbrush has already been removed, the remaining defective ones are 2 out of 19. To find the likelihood of both selections being defective, we multiply the two probabilities. Thus, (3/20)*(2/19) = 6/380, which simplifies to approximately 0.0157, or around 1.6%.
Answer:
D. 63%
Step-by-step explanation:
The white marble was selected 41 times out of 65, resulting in 41/65
Use your calculator to divide 41 by 65, yielding 0.6307
Next, multiply that result by 100 to convert it to a percentage, giving you 63%
Ta-Da!
Option B
Step-by-step explanation:
It is established that a line perpendicular to the x-axis is parallel to the y-axis. Thus, the equation of such a line adopts the form x=(+/-)a, indicating an undefined slope, where a represents a real number. Therefore, the line x=6 is perpendicular to the x-axis.
112°.
The explanation step-by-step: As trapezoid RSTU has congruent diagonals, it qualifies as an Isosceles Trapezoid. A defining property of Isosceles Trapezoids is that the base angles are equivalent. Therefore, if angle S measures 112°, angle U must also measure 112°.
Response:
The number 40 can be found in Pattern B. Additionally, following the rule, each sequence will expand.
Detailed breakdown:
Let’s build each sequence. Recall that the guideline is to "add 15" to generate each sequence starting from the provided initial number.
Pattern A.
Pattern B.
Pattern C.
You can see that the number 40 appears in Pattern B. Moreover, per the rule, each pattern will show an increase.
