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Differentiate the following w.r.t. x: cos² x³.

Take... View Article

Write the following decimal in expanded form 67.83.

67.83 = 60 + 7 + (8 / 10) + (3 / 100)... View Article

The additive inverse of – 3 / 5 is

The additive inverse of - 3 / 5 is 3 / 5.... View Article

Write the cartesian and vector equation of the z-axis.

The cartesian and vector equation of the z-axis are... View Article

A batsman scored 110 runs which included 3 boundaries and 8 sixes. What per cent of his total score did he make by running between the wickets?

Number of runs made by running = 110 - (3 x 4 + 8 x 6) = 110 - (60) = 50 ∴ Required percentage = [(50 / 110) * 100] = 45 (5 / 11)%... View Article

The expected number of failures preceding the first success in an infinite series of independent trials with constant probability p is

The required probability is calculated as follows.... View Article

A picnic is being planned in a school for Class VII. Girls are 60% of the total number of students and are 18 in number. The picnic site is 55 km from the school and the transport company is charging at the rate of Rs 12 per km. The total cost of refreshments will be Rs 4280. Find 1. The ratio of the number of girls to the number of boys in the class? 2. The cost per head if two teachers are also going with the class? 3. If their first stop is at a place 22 km from the school, what per cent of the total distance of 55 km is this? What per cent of the distance is left to be covered?

Let the total students be x. (60 / 100) × x = 18 x = 30 Boys = 30 - 18 = 12 (i) Ratio of girls / Ratio of boys = 18 / 12 = 3 / 2 (ii)... View Article

Find the measure of each interior angle of a 10 sided regular polygon.

It is a 10 sided regular polygon.... View Article

PQRS is a trapezium in which SP || RQ, find the measures of ∠P and ∠R. Give reasons.

PQRS is a trapezium.... View Article

Find the roots of the quadratic equation 3x² – 5x – 12 = 0 by using the quadratic formula.

The given equation is... View Article

Find the number of parallelograms formed if 10 parallel lines in a plane are intersected by a family of 12 parallel lines.

The number of parallelograms formed = ... View Article

Let E = {1, 2, 3, 4} and F {1, 2}. Then the number of onto functions from E to F is

Total number of functions are 24 = 16. Find the difference between the total number of functions and the functions which don’t have 2... View Article

An α – Particle Is Accelerated Through A Potential Difference Of V Volts From Rest. The De-Broglie Wavelength Associated With It Is (In Angstrom):

Kinetic Energy gained by the α-particle by potential difference V is, Explore more such questions and answers at BYJU’S.... View Article

What Is 50 Percent Of A Number Whose 200 Percent Is 20

Let the number X Given that 200 per cent of X = 20 ⇒ ⇒ x = 10 50 per cent of x = ⇒ Therefore, 50 per cent of a number is 5. Explore... View Article

Fill The Appropriate Article For Blank (1) He Was Late By Hour For The Meeting.(2) She Is Honorary Secretary Of The Club.

(1) He Was Late By _An_ Hour For The Meeting (2) She Is An Honorary Secretary Of The Club. Explore more such questions and answers at BYJU’S.... View Article

Write The Balanced Chemical Equations Of The Following Word Equation: Potassium Dichromate + Sulphuric Acid → Potassium Sulphate + Chromium Sulphate + Water + Oxygen

Potassium Dichromate + Sulphuric Acid → Potassium Sulphate + Chromium Sulphate + Water + Oxygen The Balanced Chemical Equations is Explore... View Article

The Presence Of A Cluster Of Polar Flagella Is Termed As_____

Lophotrichous Lophotrichous are cluster of polar flagella at one end or both ends of the body of bacterium. Explore more such questions and... View Article

What Are The Factors Affecting The Dividend Decision?

The factors affecting the dividend decision are: Repayment need Legal requirements Stability of earning Expected rate of return Firm's... View Article

Assertion: Molality Is Independent Of Temperature.Reason:The Volume Of The Solution Does Not Change With Temperature.Read The Above Assertion And Reason And Choose The Correct Option Regarding It. (A) Both Assertion And Reason Are Correct. (B) The Assertion Is Correct But The Reason Is Incorrect. (C) Both Assertion And Reason Are Correct And The Reason Is The Correct Explanation For Assertion.(D) Both Assertion And Reason Is Correct But The Reason Is Not The Correct Explanation For Assertion

The correct answer is (B) The Assertion Is Correct But The Reason Is Incorrect. Molality is independent of temperature. Both, the number of... View Article

A Generator Or Dynamo Works On The Principle__________

A generator or dynamo works on the principle of Electromagnetic induction. Explore more such questions and answers at BYJU’S.... View Article

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