dewayne3570 dewayne3570

07-09-2020
Mathematics

contestada

Let x be an integer. prove that x is even if and only if x^2 is divisible by 4.

Respuesta :

chidianagonye chidianagonye

07-09-2020

If x^2 is divisible by 4 then it is an even number because anything divisible by 4 is also divisible by 2. And all numbers divisible by 2 are even numbers.

Answer Link

Otras preguntas

Consider the function 5/(x-1)(x²+4). Use the method of decomposition into partial fractions to rewrite the given function. Use algebra to evaluate a, b, and c.

Suppose p(c) = 9/20, p(c j d0) = 3/7, and p(c j d) = 6/13. Find: i) p(d) ii) p(c0 [ d0) b) Are c and d independent events? Give a reason for your answer.

Morse Scale: as score decreases, risk ______________

a. 1.25 × 10 to the power of 6= b. 0.00056 = C. 2.5458 × 10 to the power of 10= d. 0.0000001 = e. 263 × 10 to the power of 8 = f. 0.071 × 10 to the power of

What AKC title is given for completing Novice obedience?

During molting, hens will decrease egg production because their bodies are depleted ofa. Fiberb. Vitamin Ec. Zincd. Calcium

What organ takes carbs and transforms it to glucose?

Irelyn, age 6, has just learned that her aunt passed away. What behaviors would you expect to find Irelyn exhibiting?

Which of the following is a continuous integration toolA. DockerB. PuppetC. JenkinsD. ChefE. Ansible

Cost accounting information is designed for ______. a. External decision makers b. employees c. investors d. managers