Tag: math & puzzles

To solve this question, the user needs to know how to solve equations involving square roots and basic arithmetic. The user must also understand that the square root of a product is equal to the product of the square roots.

We start by isolating the variable in the equation:

$$\sqrt{0.0169x} = 1.3$$

We can then solve for x by squaring both sides of the equation:

$$0.0169x = 1.69$$

$$x = \frac{1.69}{0.0169} = 100$$

Therefore, the answer is option B: 100, since it is the only value that satisfies the equation.

Option A and C are incorrect since they are not the correct value of x that satisfies the equation. Option D is also incorrect since we have found a value of x that satisfies the equation, which is 100.

To solve this question, the user must identify the pattern in the given sequence of numbers and use it to predict the next number in the sequence.

Looking at the sequence, we can see that each number is obtained by adding 213 to the previous number. Specifically, the pattern is:

213, 426, 639, 852, 1065, ...

To get the next number in the sequence, we just need to add 213 to the last number in the sequence:

1065 + 213 = 1278

Therefore, the answer is:

The Answer is: B. 1278