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Tresset [83]
4 years ago
10

Problems 7-12 Simplify each expression,

Mathematics
1 answer:
vredina [299]4 years ago
6 0

Answer:

7. 81

8. 6t³-27t²+2t-9

0

1667

9. -14y/\4+21y²+63y

10. 6x-1

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Select the appropriate linear equation for the trend line.
Maksim231197 [3]

Answer:

A y = x + 1

Step-by-step explanation:

The line starts at 1 on the y-axis so the u intercept will be 1

4 0
2 years ago
Read 2 more answers
In a math class with 29 students, a test was given the same day that an assignment was due. There were 22 students who passed th
Phoenix [80]

4/29 is the probability that a student who did not complete the homework passed the test.

<u>Step-by-step explanation:</u>

It is given that,

There are 29 students in a math class.

Two types of students who passed the test and are not passed the test.

The other two types of students are who completed the assignment and did not complete the assignment.

So, the given data can be formed as a table.

  • There were 22 students who passed the test.
  • There were 20 students who completed the assignment.
  • There were 18 students who passed the test and also completed the assignment.

                                         Passed the test     Not passed the test    Total

Completed assignment        18                             -                             20

Not completed assignment   x                             -                                -

Total                                       22                           -                               29

Now, you need to find the probability that a student who did not complete the homework passed the test.

⇒ No.of students completed assignment passed the test / Total students.

<u>To find the no.of students completed assignment passed the test :</u>

Let 'x' is the no.of students completed assignment passed the test.

⇒ 18+x = 22

⇒ x = 22 - 18

⇒ x = 4

∴ P(students completed assignment passed the test) = 4 / 29.

4 0
3 years ago
Which of the following are examples of a function? Justify your answers.
Blababa [14]

Answer:

The assignment of teachers to students enrolled in each of their classes is NOT an example of a function.

Step-by-step explanation:

To determinate if the given example is a function, you have to use the definition of function and compare it to the example.

A function is defined as a relation that assigns each element of one set to exactly one element of the second set. The first set is called the domain and the second set is called the range.

In this case, the domain is represented by the teachers and the range is the students enrolled in each teacher's classes.

Therefore, the example is not a function because each teacher is not assigned to exactly one student. In other words, in general, one teacher has more than just one student.

4 0
3 years ago
Evaluate each expression 3d-4 d=1.2
Ann [662]

Answer:

3d - 4 = -0.4

When d = 1.2

Step-by-step explanation:

Use PEMDAS to solve the equation

3(1.2) - 4

= 3.6 - 4

= -0.4

3 0
3 years ago
You have just graduated from college and purchased a car for $6000. Your credit limit is $24,000. Assume that you make no paymen
Harman [31]
At the end of each month, the balance is 1.14 times what it was at the beginning. So, after 3 months, the balance is 1.14³ = 1.481544 times the original charge.
  $6000 × 1.481544 ≈ $8889.26

The appropriate selection is
  d. $8889.26
7 0
3 years ago
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