1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Lelu [443]
3 years ago
6

How do I rewrite this expression?

Mathematics
1 answer:
natka813 [3]3 years ago
5 0

Answer:

2 + i

Step-by-step explanation:

Given

\frac{4+\sqrt{16-(4)(5)} }{2}

= \frac{4+\sqrt{16-20} }{2}

= \frac{4+\sqrt{-4} }{2}

= \frac{4+2i}{2}

= 2 + i

You might be interested in
What is the vertex of the graph y = x^2 + 6x - 5 ?
Dafna11 [192]
Given:  <span>y = x^2 + 6x - 5.  Then a = 1, b = 6 and c = -5.

The x-coord. of the vertex is given by x = -b / (2a), which here is x = -6 / (2*1) = -3.

Use the given formula </span><span>y = x^2 + 6x - 5 to find the value of y when x = -3:

y = (-3)^2 + 6(-3) - 5 = 9 - 18 - 5 = -14

Then the vertex is (-3, -14).</span>
6 0
3 years ago
What time is it on this clock? I can't see it well.
Anna35 [415]

Answer:

10:00

Step-by-step explanation:

7 0
2 years ago
When it comes to reducing that’s where I start having trouble for example 10/13x1/15= 10/65 but 10/65 not in lowest terms so I h
arlik [135]

Answer:

Step-by-step explanation:

Let's use your example as a starting point.  <em>Determine whether the same number will divide each 10 and 65 evenly</em>.  In this case, the answer is yes, and the number is 5.  10/5 = 2, and 65/5 = 13.  Thus, the fraction in lowest terms is 2/13.

6 0
2 years ago
A school plays a series of 6 soccer matches. For each match there are 3 possibilities: a win, a draw or a loss. How
Sphinxa [80]

Answer:

There are 729 possible results are there for the series

Step-by-step explanation:

If we have n trials, each with m possible outcomes, the total number of possible outcomes is:

T = m^{n}

In this question:

6 games(trials), so n = 6.

Each with three possible outcomes, so m = 3

Then:

T = 3^{6} = 729

There are 729 possible results are there for the series

7 0
3 years ago
Determine the value of a, b, and c for the quadratic equation: 4x2- 8x = 3
Rufina [12.5K]

Answer:

B. a = 4, b = -8, c = -3

Step-by-step explanation:

The quadratic equation given is:

4x^2- 8x = 3

The general form of a quadratic equation is given as:

ax^2 + bx +c = 0

Let us put the given equation in this form and then compare with the general form of the quadratic equation.

4x^2- 8x = 3\\\\4x^2 - 8x - 3 = 0

Therefore, by comparing:

a = 4

b = -8

c = -3

The correct option is B

4 0
3 years ago
Other questions:
  • You decide you need a new computer. The cost of the computer is $768. However,
    9·1 answer
  • Is 0 a solution to 2x+10=4x+10
    7·2 answers
  • Help please i really need help please ! i will upvote
    11·1 answer
  • 7) Where is the function constant?<br><br> Help me
    11·1 answer
  • 9. What four consecutive integers have a sum of -34?
    15·1 answer
  • Find the least common denominator for these fraction 4/8 and 1/4​
    7·1 answer
  • Find the 83rd term of the arithmetic sequence -23, -26, -29, I need help
    9·2 answers
  • PLEASE HURRY IM TIMED Andy drove 102 miles on Monday morning. This was
    12·1 answer
  • What is the volume if a hemisphare with a diameter of 10cm​
    13·2 answers
  • True or false 8.25 is greater than 8.25 repeating
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!