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3 years ago

What is a complex number ?

1 answer:

5 0

Answer:A complex number is a number that can be expressed in the form a + bi, where a and b are real numbers, and i is a solution of the equation x² = −1. Because no real number satisfies this equation, i is called an imaginary number.

Step-by-step explanation:

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Thank u for answering !

maxonik [38]

Answer:

1. C

2. A

3. B

4. B

5. A

6. A

Step-by-step explanation:

you will answer the rest, sorry if i was rude

6 0

3 years ago

Evaluate f(x) = -4x + x2 + 16 for f(-4).

kipiarov [429]

Answer:

$f(-4)=48$

Step-by-step explanation:

Value of functions

To evaluate a function for a given value of x, we replace the x for the value and perform the resulting operations.

The given function is (corrected):

$f(x)=-4x+x^2+16$

We need to find f(-4), so we use x=-4:

$f(-4)=-4*(-4)+(-4)^2+16$

$f(-4)=16+16+16$

$\boxed{f(-4)=48}$

4 0

3 years ago

7) A patient received 4 units of packed red blood cells postoperatively. The first

Vlad [161]

Answer:

812

Step-by-step explanation:

add the units mL's together

4 0

3 years ago

A cuboid has a square base.

padilas [110]

The length of one side of the square base is 8.5 centimeters.

Given the following data:

Volume of cuboid = 867 cm

Height = 12 cm

To find the length of one side of the square base:

Mathematically, the volume of a cuboid is given by the formula:

$Volume = Base \; area$ × $Height$

Substituting the given values, we have:

$867 = Base \; area$ × $12$

$Base\;area = \frac{867}{12}$

Base area = 72.225 $cm^2$

Now, we can find the length by using the formula:

$Area \;of\;a \;square = length^2$

$72.25 = length^2$

$Length = \sqrt{72.25}$

Length = 8.5 centimeters.

Therefore, the length of one side of the square base is 8.5 centimeters.

Find more information: brainly.com/question/11037225

8 0

2 years ago

PLZ HELP!!!!!!! Solve for x

Lunna [17]

Answer:

100

Step-by-step explanation:

hehe

6 0

3 years ago