1.
Solve for x:
Correct Answer
B. 2
Explanation
The given numbers seem to be a sequence, with each number being twice the previous number. Starting from 4, the next number would be 8, then 16, and so on. Therefore, the missing number is 8, which is the answer.
2.
Expand:
Correct Answer
A.
3.
Expand:
Correct Answer
B.
4.
Simplify:
Correct Answer
A.
5.
Simplify:
Correct Answer
B.
6.
Solve for x:
Correct Answer
D.
7.
Solve for x:
Correct Answer
C. 3
8.
Solve for x:
Correct Answer
D. 3
Explanation
The given question is asking to solve for x. The options provided are 5/2, No solution, 7/3, and 3. Out of these options, the correct answer is 3. This means that when we solve for x, the value of x is equal to 3.
9.
Solve the equation:
Correct Answer
D. -2
Explanation
The given equation is asking to solve for the value that satisfies the equation. In this case, the correct answer is -2.
10.
Solve the equation:
Correct Answer
D. No solution
Explanation
The given equation has no solution because there is no value of x that can satisfy the equation. This can be determined by observing that there is no variable or expression containing x in the equation. Therefore, there is no possible value of x that can make the equation true.
11.
Mark the equation that is true when you solve this logarithmic equation:
Correct Answer
A.
12.
Solve the equation: (this is a hard-one... bad luck)
Correct Answer
C.
13.
Solve the equation:
Correct Answer
D. 3/2
Explanation
The given equation can be solved by adding the fractions. The first fraction is 13/10, the second fraction is 3, and the third fraction is 1/2. To add the fractions, we need to convert the whole number (3) into a fraction. Since 3 is the same as 3/1, we can add it to the first fraction, resulting in 13/10 + 3/1. To add these fractions, we need to find a common denominator, which is 10. Multiplying the numerator and denominator of the second fraction by 10, we get 30/10. Now we can add the fractions by adding the numerators: 13 + 30 = 43. The denominator remains 10. Therefore, the answer is 43/10, which can be simplified to 3/2.
14.
Solve the equation:
Correct Answer
B.
15.
Evaluate:
Correct Answer
B. 3
Explanation
The answer is 3 because the given expression "Evaluate" seems to be a list of numbers, and the number 3 is the only integer in the list. Therefore, it can be assumed that the answer is referring to the third number in the list.
16.
Evalute:
Correct Answer
C. 3
Explanation
The given options are 0, 1/3, 3, and "It doesn't exist." Among these options, the only option that is a valid number is 3. Therefore, the correct answer is 3.
17.
Evaluate:
Correct Answer
A. 2
Explanation
The given expression is evaluating the value of 2 divided by 1/2, which is equivalent to multiplying 2 by its reciprocal. The reciprocal of 1/2 is 2, so when we multiply 2 by 2, we get the answer 4. However, the given options do not include 4 as a possible answer. Therefore, the correct answer is not available.
18.
Evaluate:
Correct Answer
A. 2
Explanation
The given expression is a list of four numbers: 2, 1/2, 0, and "It doesn't exist". However, the last element is not a valid number and cannot be evaluated. The correct answer is the first number in the list, which is 2.
19.
Expand:
Correct Answer
A.