21-08-2017
Mathematics

contestada

Explain why the expression 7•3x is not equal to the expression 21x

Respuesta :

merlynthewhizz merlynthewhizz

28-08-2017

Working out the expression 7(3ˣ) is first to calculate the value of 3ˣ then multiply the answer to 7.

For example, let x = 2
Then 7(3ˣ) = 7(3²) = 7 × 9 = 63

With the same value of x = 2, calculating 21ˣ = 21² = 441, which isn't the same answer with the expression 7(3ˣ)

Answer Link

Otras preguntas

Suppose you are babysitting young children when an earthquake occurs. You are at the park. What steps can you take to best protect yourself and the children?

rubbing two sticks together to make a fire is an example what

You have been assigned to give an oral presentation in which you defend a particular interpretation of a book you have read. Which is the best course of action

What is 88+24 in the distributive property

If i had x and y is y an integer

Which of these should always be included in a personal health plan for fitness? Select the two correct answers. A. Weight Gain. B.Benchmarks. C. Injuries.

let r= .12 be the reserve rate. What is the money multiplier?

What percentage of women voted for trump?

I need help please I don't know if it is right my answer is x=16.66

What is the domain of y = tan x?