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South Carolina officials have been plastering the state with sample questions on high-stakes tests that students will begin taking next spring.   Below are examples for 10th graders, whose tests will be phased in later.
• Grade 10-Science

There are three alleles that determine blood type: A, B, and O. The A and B alleles are both dominant over O, but neither is dominant over the other.   When A and B are both present in a genotype, they are co-dominant.  This is why there are four different blood types: A, B, AB, and O.

Dan has type A blood.   What is the probability that Dan and Joy will have a child with type O blood?

A.

0% D. 75%

B.

25% E. 100%

C.

50%
(*Answer)

A force of 50N and a force of 80N are applied to a boulder.  If these vectors are added in any direction, which resultant force is not posible?

A.

130N D. 30N

B.

80N E. 20N

C.

50N
(**Answer)

• Grade 10-Mathematics

There are 250 seniors in a class.  Sixty percent have plans to go to college.   Of those with plans to go to college, 40 percent plan to go to a college out of state.  How many students plan to go to a South Carolina college?

A.

60 D. 150

B.

90 E. 190

C.

40
(***Answer)

DEF is the image of  ABC under a dilation (or size change). What is the magnitude of the size change?

A.

17/8 D. 3.5

B.

2 E. 4

C.

3
(****Answer)

 * B ** E *** B **** A

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Correction:
The correct answer to the final question, choice A, should have read 1 7/8 (one and seven-eighths).
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