2 years ago

What is an identity element of addition

Mathematics

1 answer:

timama [110]2 years ago

3 0

Answer:

Step-by-step explanation:

0 is the identity element under addition for the real numbers.

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Determine if the expression 9y5 – 10y3 is a polynomial or not. If it is a polynomial,

Stolb23 [73]

I am going to assume that the equation was supposed to be $9y^{5}$ $-10y^{3}$

Answer:

It is a polynomial. It is a binomial and it has a degree of 5.

Step-by-step explanation:

A polynomial is an expression consisting of variables and coefficients, that involves only the operations of addition, subtraction, multiplication, and non-negative integer exponentiation of variables so $9y^{5}$ $-10y^{3}$ will be considered a polynomial.

A binomial is a polynomial with 2 terms.

The degree of a polynomial is the highest exponent in it which in this equation is 5.

8 0

2 years ago

If r(x) = 2x^2 – 5x + 1, find r(x + 2)

quester [9]

Step-by-step explanation:

1 Expand by distributing terms.

rx+r×2

2 Regroup terms.

rx+2r

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2 years ago

Solve, using the substitution method.

ss7ja [257]

Answer:

(-6,-5)

Step-by-step explanation:

X+y=-11

solve for x

x=-11-y

substiute x value into 2nd equation

2x-3y=3

2(-11-y)-3y=3

-22-2y-3y=3

-5y=25

y=-5

substitute -5 for y in either equation to find x

x+y=-11

x+-5=-11

x=-6

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2 years ago

A running tap dispenses 0.14 gallons of water every second. How many pints of water is dispensed after 50 seconds? Show your wor

forsale [732]

Answer:

56 pints

Step-by-step explanation:

3 0

2 years ago

Read 2 more answers

What is the value of the expression (-8)(6) - (-4)(-5) + (-3)(-6)?

Vlad1618 [11]

-77 is the correct answer. Hope this helped. Comment if you would like a more detailed answer.

5 0

3 years ago

What is an identity element of addition​

What is an identity element of addition