A box of cookies consists of 8 chocolate chip cookies, 12 peanut butter cookies, and 4 oatmeal
cookies. A infant randomly selects 2 cookies, one after the other. Which of the subsequent
expressions represents the opportunity that both cookies may be peanut butter?
A. 12/24 + 12/23
B. 1/12 + 1/11
C. 12/24 x 11/23
D. 1/12 x 1/eleven - ANS-C
a curve in a aircraft surrounding focal factors such that the sum of the distances to the 2 focal
factors is consistent for each point at the curve - ANS-ellipse
A fifth-grade instructor is writing an editorial on arithmetic activities in the school room. The
article describes how students use manipulatives to clear up dimension issues. The teacher
blanketed trademark symbols with he call of the manipulative. The trainer additionally protected
images of students working with the manipulatives. None of the scholars inside the pix were
diagnosed by using call. To make sure compliance with moral suggestions, the trainer need to
take which of the following moves previous to posting the item on the internet?
A. Imparting hyperlinks to the producers of the manipulative that have trademarked names
B. Providing a disclaimer pointing out that the school district does no longer advise the
pedagogical methods used
C. Explicitly identifying the manipulative used in a caption underneath every photo
D. Acquiring permission from dad and mom/guardians before posting pictures of the students -
ANS-D
A fourth-grade teacher is making plans a unit in which college students will use a laptop utility to
create their own tessellations. The instructor would like to increase a series of associated
activities and exams to help increase college students' mathematical reasoning talents
associated with the use of the software. Which of the subsequent subjects would be maximum
suitable for the extra substances to address?
A. Reflections, rotations, and translations
B. Area of composite figures
C. Similarity and proportional reasoning
D. Graphs of simple equations - ANS-A
A character buys an object that prices $3.60 and can pay for it with a $5.00 invoice. The amount
of exchange, in dollars, represents a range of from which of the subsequent sets?
, A. Herbal numbers
B. Rational numbers
C. Whole numbers
D. Nonnegative integers - ANS-B
A small employer desires to produce toy robots. The company determines that they'll have an
preliminary funding of $10,000 for device and tools and that each robotic will fee an extra $15 to
make. If n equals the variety of toy robots made, which of the subsequent capabilities offers the
full value, C(n), of manufacturing n robots?
A. C(n) = 10,000n + 15n
B. C(n) = 10,000n + 15
C. C(n) = 10,000 + 15n
D. C(n) = 10,000 + 15 + n - ANS-C
A table has a square center element and semicircular ends that may be folded out to increase
its size. When the ends are folded down, the square portion has a length of 5 feet and a place of
30 rectangular ft. Which of the subsequent expressions represents the area of the desk whilst
the semicircular ends are folded out?
A. 30 + 6pi rectangular ft
B. 30 + 9pi square feet
C. 36pi rectangular feet
D. 39pi square feet - ANS-B
A instructor shows students how they are able to improve their computational fluency by means
of supplying them with common opportunities to use intellectual math to remedy troubles such
as those beneath.
Which of the following great describes the teacher's technique?
A. Finding sums by means of running left to proper
B. The usage of a combination of addition and subtraction together
C. Locating wide variety pairs that sum to without difficulty recognizable numbers
D. Changing addition troubles into multiplication troubles - ANS-C
A teacher would love to have an activity wherein students can evaluate a theoretical probability
with an experimental probability. Answering which of the following questions could be maximum
suitable for this hobby?
A. What is the chance that a student in the college decided on at random may be wearing a red
blouse?
B. What is the possibility that a six-sided variety dice will come up five whilst rolled?
C. What is the probability of efficiently guessing a number between 1 and 1000?
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