For numbers 6-10, refer to the following problem. The time it takes for Grade 11 students in a certain school to complete a physical fitness test is normally distributed with mean 15 minutes and a standard deviation of 4 minutes. 6. What is the corresponding z-score of 12.5 minutes? A. 0.63 В. 0.62 C.-0.62 D. -0.63 7. What is the probability that a student completes the physical fitness in less than 14 minutes? A. 40.52% В. 40.13% C. 39.74% D. 39.36% 8. What is the longest time to complete the test of a student whose time belongs to the middle 60% of all recorded times? A. 11.64 min В. 16 min C. 17.53 min D. 18.36 min 9. If the students who get the fastest 5% completion times will be exempted from the additional gym workout session, what is the slowest time that a student can have to qualify for the exemption? A. 8.40 min B. 8.42 min C. 8.44 min D. 8.46 min 10. What is the fastest completion time of the students who belong to the longest 25% of all completion times? A. 17.68 min В. 17.66 min C. 17.64 min D. 17.62 min

Q: a) How many students are taking Art?

A: the number of students taking Art if given by 6+10=16

Q: Evaluate 4-3

A: For a negative exponent, we will use reciprocal first.

Q: Which graph correctly solves the equation below? -x²+1=x²-4

A: topic - quadratic equations

Q: What is the Probability that a student is not taking either class?

A: From the given Venn diagram, it is observed that the number of students who are taking art only is…

Q: 3. 42P 4-2p-1 =

A:

Q: Evaluate 24

A: Explanation of the answer is as follows

Q: Evaluate 0 b 0 10

A:

Q: 30 = 6 + z z =

A: Given : 30  = 6+z

Q: 100 %3D 41

A:

Percentage

A percentage is a number indicated as a fraction of 100. It is a dimensionless number often expressed using the symbol %.

Algebraic Expressions

In mathematics, an algebraic expression consists of constant(s), variable(s), and mathematical operators. It is made up of terms.

Numbers

Numbers are some measures used for counting. They can be compared one with another to know its position in the number line and determine which one is greater or lesser than the other.

Subtraction

Before we begin to understand the subtraction of algebraic expressions, we need to list out a few things that form the basis of algebra.

Addition

Before we begin to understand the addition of algebraic expressions, we need to list out a few things that form the basis of algebra.