All categories

3 years ago

Find all solutions to the equation equation (x - 1)^2 = -4.

Mathematics

1 answer:

tatuchka [14]3 years ago

6 0

Answer:

x = 1±2i

Step-by-step explanation:

(x - 1)^2 = -4.

Take the square root of each side

sqrt( (x - 1)^2) = sqrt(-4)

Sqrt(ab) = sqrt(a)sqrt(b)

We know the sqrt(4) = 2 and the sqrt(-1) = ±i

x-1 = ±2i

Add 1 to each side

x-1+1 = 1±2i

x = 1±2i

You might be interested in

The hiski s family spends $600 per month on groceries for the family. If this is 15% of their monthly budget , then what is thei

ad-work [718]

I think that it is $4,000

8 0

4 years ago

Questions are on the picture, a-e.

iris [78.8K]

The equilibrium price is $1.12.
If price is $0.98, there would be scarcity of Super Widgets.
When price is $0.98, quantity demanded is y.
When price is $0.98, quantity supplied is x.
When price is $1.22, there would be a surplus of Super Widgets.

<h3>What is equilibrium? </h3>

Equilibrium price is the price at which the quantity demanded equals the quantity supplied. The equilibrium price is $1.12.

Above equilibrium price, quantity supplied would exceed quantity demanded and there would be a surplus. When price is below equilibrium price, quantity supplied would be less quantity demanded and there would be a scarcity.

To learn more about equilibrium, please check: brainly.com/question/26075805

#SPJ1

5 0

2 years ago

1= 1/4c what is c ? pls help i could not figure this one out haha

tino4ka555 [31]

Step-by-step explanation:

it say the answer is 4 but I don't know how

8 0

3 years ago

8.) 2x<12 pls help me

Roman55 [17]

Answer:

x < 6

Step-by-step explanation:

2x < 12

Divide both sides by 2;

x < 6

x is less than 6

3 0

3 years ago

Scatter plots and Line of Best Fit

m_a_m_a [10]

The answer will be 60+ because 48 minutes is a long time and if youstudy for a long time you memorize more

6 0

3 years ago