When y=3 and x= 1/2 1.4(2y-4x)-1= 2. 4x^2+2y^3-10= 3.4(x^+1)+2x+3y=
1 answer:
Answer:
1. 15
2. 45
3. There is a missing digit.
Step-by-step explanation:
Given: <u>y=3</u> and <u>x= 1/2</u>
<h2>Question 1: 4(2y-4x)-1=</h2>- Numerical factors in this term have been multiplied.
4(6-4/2)-1
- We can reduce this fraction by dividing both numerator and denominator by a common numeric factors.
4(6-2)-1
- Numerical terms in this expression have been added.
4*4-1
- Numerical factors in this term have been multiplied.
16-1
- Numerical terms in this expression have been added.
15
<h2>Question 2: 4x^2+2y^3-10 = </h2>4/2²2*27-10
4/2²+54-10
- We need to perform a multiplication.
- The following rule is applied:
45: Numerical factors in this term have been multiplied.
You might be interested in
Answer: 1) D 2) B
<u>Step-by-step explanation:</u>
1) The denominator cannot equal zero, Factor the denominator to find the zeros. n³ - 4n² + 3n = 0
n(n - 3)(n - 1) = 0
n=0 n-3=0 n-1=0
n=0 n=3 n=1
2) In order to be a rational expression, it must be in the form where both a and b are integers.
Since is irrational and not an integer, then the expressions containing an irrational term <em>after simplified</em> cannot result in an integer.
Therefore, options <em>(i)</em> and <em>(iv)</em> are not rational expressions.
Option <em>(iii)</em> contains b as an exponent. Since there is no information about b, it could be a fraction, which means it could be an irrational number.