Explanation

Explanation

Correct sum = (36 * 50 + 48 – 23) = 1825.

Correct mean = 1825/50 = 36.5

Explanation

To find the number of pieces, divide the total length by the length of each piece:

42.5 meters ÷ 0.85 meters = 50

So, the correct answer is 50.

Explanation

To find the answer, divide 4.036 by 0.04:

4.036 ÷ 0.04 = 100.9

Explanation

Explanation

1. Convert all fractions to a common denominator (8):

   • $\frac{3}{4}=\frac{6}{8}$

   • $\frac{5}{8}=\frac{5}{8}$

   • $\frac{1}{2}=\frac{4}{8}$

2. Perform the calculation:

   • $\frac{6}{8}+\frac{5}{8}-\frac{4}{8}=\frac{7}{8}$

3. Convert $\frac{7}{8}$ to decimal:

   • $\frac{7}{8}=0.875\approx 0.87$

Explanation

= -3^3

= -3 × -3 × -3

= -27

Explanation

The surface area of a sphere depends only on the radius (r) and is given by the formula 4πr².

This formula comes from calculus and represents the total area covering the outer layer of a perfect sphere.

Explanation

36 is a composite number as it has factors other than 1 and itself.

Factors of 36 are 1, 2, 3, 4, 6, 9, 12, 18, and 36.

Explanation

45 per-cent of 300 per-- divide cent--- 100 of --- multiply 45/100 multiply 300 45 multiply 3.

Correct Answer: 135