Numbers like 7.478478... and 2.3565656... are rational or irrational. Give reason .

Answers

Answer 1

Answer: These numbers are irrational because they cannot be written in the form: $(x)/(y)$ .

Only rational numbers can be written in the ratio form.

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There are 3 white marbles and 7 blue marbles in a bag. Jamie will randomly pick two marbles out of the bag without replacing the first marble chosen. What is the probability of Jamie's picking 2 white marbles?A) 1/15B) 1/18C) 1/7
Convert 21.7 kilometers to centimeters.
What is the value of the expression |-20 + 5|?
Help me please it’s on spheres thankyou
You can jog around your block twice and the park once in 10 minutes. you can jog around your block twice and the park 3 times in 22 minutes. a. write a system of linear equations that represents this situation. let x represent the number of minutes it takes you to jog around your block and y represent the number of minutes it takes you to jog around the park. system of equations: b. how long does it take you to jog around the park? it takes you minutes to jog around the park.

Solve 5x+y=23 3x+y=17

Answers

Answer:

y = 8

x = 3

Step-by-step explanation:

5x+y=23

3x+y=17

cancel out the Xs

15x + 3y = 69

-15x - 5y = -85

-2y = -16

y = 8

Plug in 8 for the Y in any of the equations it doesn't matter

3x + y = 17

3x + 8 = 17

3x = 9

x = 3

hope this helps

A scientist finds hominid fossils in China and in Australia. Judging by the rock layers in which both the fossils were found, the scientist suspects that they are approximately the same age. What should the scientist do next to build a stronger case that the fossils are the same age?

Answers

Since the fossils are of hominid origin, this means that they could contain carbon. Knowing this, carbon dating could be used to determine the age of the fossil. The technique is based on the ratio on carbon-12 and carbon-14. Carbon-14 undergoes radioactive decay, which is modeled by a first-order reaction. Knowing the half-life of carbon-14, one can solve the age of the fossils.

3/9 in simplest form

Answers

it is 1/3
3:3 =1
9:3 = 3
make sure that the top and bottom numbers divide with the same number :)

Can anyone explain how to differentiate this ? (2x^2+3)sin5x

Answers

Hello,

(u*v)'=u'v+uv'
u=2x²+3 ==> u'=4x
v=sin 5x ==>v'=cos 5x *5

((2x²+3 sin (5x))'=4x* sin (5x) +(2x²+3)*cos (5x) * 5

Why do all verified people who answer, are always wrong

Answers

Answer:

they probably do it just to get more answer points or whatever the brianily thing is called

Step-by-step explanation:

A,B,C OR D
PLS HELP..

Answers

Answer:

DDDDDDDDDDDDDd

Step-by-step explanation:

Answer:

its d

Step-by-step explanation:

its steeper than the others

Other Questions

Can you solve?24 = 7/8 gA. 3/7B. 21C. 23 1/8D. 37 3/7

Any help is appreciated I will mark you as Brinley

What is 8/16 in simplest form

If n denotes a number to the left of 0 on the number line such that the square of n is less than 1/100, then the reciprocal of n must be _______.A. less than -10B. between -1 and -1/10C. between -1/10 and 0D. between 0 and -1/10E. greater than 10