Explanation

Let the two consecutive odd numbers be x and x + 2.

Given x² + (x + 2)² = 394:

x² + x² + 4x + 4 = 394

2x² + 4x - 390 = 0

x² + 2x - 195 = 0

(x + 15)(x - 13) = 0

x = -15 or x = 13

For x = 13, the numbers are 13 and 15.

13² + 15² = 169 + 225 = 394

The sum of the numbers is 13 + 15 = 28.

Explanation

Work done (W) is calculated as:

W = F * d * cos(θ)

where F is the force, d is the displacement, and θ is the angle between the force and displacement.

For work done to be zero, cos(θ) needs to be 0, which happens when:

θ = 90°

Explanation

غزوہ بدر کے موقع پر مسلمانوں کے پاس کل 70 اونٹ اور 2 گھوڑے تھے۔

تین یا چار افراد ایک اونٹ پر باری باری سوار ہوتے تھے، یہاں تک کہ نبی ﷺ نے بھی صحابہ کے ساتھ باری باری سواری فرمائی۔

Explanation

Explanation

عتبہ اور شیبہ طائف کے وہ دو بھائی تھے جنہوں نے رسول ﷺ پر ظلم کیا۔

انہوں نے طائف میں اہلِ قریش کے کہنے پر آپ ﷺ پر پتھر برسائے۔

Explanation

To convert 45 to binary:

45 ÷ 2 = 22 remainder 1

22 ÷ 2 = 11 remainder 0

11 ÷ 2 = 5 remainder 1

5 ÷ 2 = 2 remainder 1

2 ÷ 2 = 1 remainder 0

1 ÷ 2 = 0 remainder 1

Reading remainders from bottom to top: 101101

Therefore, 45 in binary = 101101.

Explanation

A solar year is approximately 365.25 days, which accounts for Earth's full orbit around the sun.

The extra ¼ day each year is why we have a leap year every 4 years.

The solar year 365 days 5 hours 48 minutes 46 seconds, also called tropical year, or year of the seasons.

Explanation

Hydrogen bonding occurs when hydrogen is bonded to highly electronegative atoms like fluorine, oxygen, or nitrogen.

HCl does not form hydrogen bonds because chlorine is not electronegative enough to form such interactions with hydrogen.

Explanation

"Say to us" changes to "tell us", and present tense remains as it's a universal statement.

"You" changes to we, and "our" to their to match the speaker and listener perspective.

Explanation

“Could” is used to express ability in the past.

The correct sentence is: "He could sing high notes when he was young but his voice has changed."