Ask question

Ask question

All categories

2 years ago

11

Which expression demonstrates the use of the commutative property of addition in the first step of simplifying the expression (–

1 i) (21 5i)?

1 answer:

Naily [24]2 years ago

5 0

Answer:

C i think

Step-by-step explanation:

You might be interested in

sineoko [7]

Answer:

128.

Step-by-step explanation:

The equation we need is going to be 32,000 multiplied by 0.04% written as a decimal.

Since 0.04% written as a decimal is 0.004, the equation will be:

32000*0.004= ?

32000*0.004= 128.

I hope this helps!

7 0

3 years ago

Ok. I have a drawing of 2 full colored 100 squares. What is it in decimal and fraction? Please help me!!

Nitella [24]

The answer can be expressed as 2/100 or 0.02

6 0

3 years ago

For the sequence an=3n(n+1) what is the value of a10

fgiga [73]

A(n)=330 Plug in 10 for n

3 0

3 years ago

Read 2 more answers

Select and use the most direct method to solve 2x(x + 1.5) = -1. Describe and justify the methods you used to solve the quadrati

miskamm [114]

Step-by-step explanation:

Given that,

A quadratic equation,

2x(x + 1.5) = -1

We need to solve the quadratic equation. Firstly we need to simplify the above equation to form it as $ax^2+bx+c=0$ .

So,

$2x^2+3x=-1\\\\2x^2+3x+1=0$

Here, a = 2, b = 3 and c = 1

The roots of the given equation can be given by :

$x=\dfrac{-b\pm \sqrt{b^2-4ac} }{2a}$

Putting all the values we get :

$x=\dfrac{-b\pm \sqrt{b^2+4ac} }{2a}, \dfrac{-b\pm \sqrt{b^2-4ac} }{2a}\\\\x=\dfrac{-3\pm \sqrt{3^2+4(2)(1)} }{2(2)}, \dfrac{-3\pm \sqrt{3^2-4(2)(1)} }{2(2)}\\\\x=\dfrac{-3+1}{4}, \dfrac{-3-1}{4}\\\\x=-\dfrac{1}{2}, -1$

So, the roots of the given equation is -1/2 and -1.

5 0

4 years ago

10 points per answer!

Mkey [24]

Answer:

d

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers