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
bazaltina [42]
11 months ago
7

I get see photo. I l ow this is wrong. Can you help?

Mathematics
1 answer:
mylen [45]11 months ago
8 0

Given the equation:

y=x^2+x-4

We will find the value of (y) when ( x = 2i )

Note: i² = -1

so, when x = 2i

y=(2i)^2+(2i)-4

Simplifying the answer

So,

\begin{gathered} y=4i^2+2i-4 \\ y=4\cdot(-1)+2i-4 \\ y=-4+2i-4 \\ y=-8+2i \end{gathered}

So, the answer will be y = -8+2i

You might be interested in
The product of four different positive integers is 100. What is the sum of these four integers?
Leno4ka [110]

Step-by-step explanation:

The Answer for the above question is

The four integers are 1,2,5,10. And Sum of the four integers is 18 .

<u>Method : </u>

Product of four different positive integers is 100 .

<u>First</u> of all lets break the number "100"

 ⇒  100 = 50*2

 ⇒ 100 = 25 * 2 * 2

  ⇒ 100 = 5 * 5 * 2 * 2

But here we get the same  integers 2 and 5 and we want different positive integers . So hereby merge 5 * 2  which is 10.

Let's get to the possible combination -

  After merging 5*2 = 10 we get the answer as -

 ⇒ 100 = 1 * 2 * 5 * 10

 Here, we have 1, 2, 5, 10. these are the positive integers whose product gives 100 .

Sum of these products is -

   ⇒ Sum = 1 + 2 + 5 + 10

  ⇒  Sum = 18 .

Sum of these four Integers is 18.

5 0
3 years ago
1,729 is divisible by 9<br> a. true<br> b. false
alexgriva [62]
It is b: False 1,729 isn’t divisible by 9
3 0
2 years ago
Could yall help me PLEASE
klasskru [66]

Answer: 3.6

Step-by-step explanation:

(Not the best at math but I am an above level student)

C= pi x diameter

C= pi x 1.205

C= 3.7

3 0
2 years ago
three consecutive intergers have a sum of 30. Which equation can be used to find x, the value of the smallest of three numbers
prohojiy [21]

Answer:

x+ x+1 + x+2 = 30

3x+3 =30

Step-by-step explanation:

Let x be the smallest integer

x+1 be the next smallest

x+2 be the third

x+ x+1 + x+2 = 30

Combine like terms

3x+3 =30

8 0
3 years ago
Solve for m: -14m = -28
Bingel [31]
Divide both sides by -14.

Answer:
m=2

6 0
3 years ago
Other questions:
  • Select each type of line of symmetry that the following figure has, if any.
    10·2 answers
  • Can someone help me asap?!?:( 2x-y=3 x+2y=-6
    5·2 answers
  • Solve 2y - 3 = 4y + 6<br> y<br> DONE
    13·1 answer
  • The theoretical probability of an event is __ a negative number
    14·1 answer
  • Help me ! Please I’m trying to get pass this !
    14·2 answers
  • Four more than one third x
    9·1 answer
  • A person places $8890 in an investment account earning an annual rate of 7.7% compounded continuously using the formula v=pert w
    9·1 answer
  • What is the mean of the absolute deviation. 8 4 3 3 3 3
    12·2 answers
  • Find the amount of discount using the following numbers.
    15·2 answers
  • Big Mack buys meat for the family reunion cookout. He needs to buy 11 packagesof meat. A package of hotdogs costs $2.59, and a p
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!