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Alex777 [14]
3 years ago
9

In math what is imaginary I stand for

Mathematics
1 answer:
ahrayia [7]3 years ago
4 0
Imaginary number is one that when squared gives a negative result. ... With imaginary numbers, when you square them, the answer is negative. They are written like a real number, but with the letter i after them, like this: 23iThe letter i means it is an imaginary number.
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Sam opened a money-market account that pays 2% simple interest. He started the account with $7,000 and made no further deposits.
Juliette [100K]
Answer:  $7,420.00 = 3 years
(I = A - P = $420.00)

Equation:
A = P(1 + rt)
Calculation:
First, converting R percent to r a decimal
r = R/100 = 2%/100 = 0.02 per year.

Solving our equation:
A = 7000(1 + (0.02 × 3)) = 7420 
A = $7,420.00

The total amount accrued, principal plus interest, from simple interest on a principal of $7,000.00 at a rate of 2% per year for 3 years is $7,420.00.
7 0
3 years ago
Help me work this out please
creativ13 [48]

Answer:

∠DEF = 250°

Step-by-step explanation:

1. This shape is a hexagon (6 sides), so the interior angles should all add to 720°. Also worth noting: the problem says the <em>obtuse</em> angle DEF; this means it's the angle INSIDE the shape, not outside.

2. Add all the known angles, then subtract from the total degrees:

50 + 96 + 144 + 42 = 332

720 - 332 = 338

3. Because BC is parallel to ED, we can subtract 180 - 42 for the value of ∠EDC, which is 138°.

4. Add all the known values and subtract from 720 for the value of ∠DEF:

50 + 96 + 144 + 42 + 138 = 470

720 - 470 = 250°

6 0
3 years ago
Surface area of rectangular prism.
Kamila [148]
Answer: 62unit^2

Explanation

8 0
3 years ago
How do I go about solving this. ​
notka56 [123]
<h2>Answer:</h2><h2>x=37.5° and angle ABC is 52.5°</h2><h2>Step-by-step explanation:</h2>

We know that angle CBD is a right angle.

We also know that angle ABE is 180°.

Our unknown angle values are angle DBE and angle CBA.

angle CBD minus angle ABE will be 90°.

angle ABC plus angle DBE must equal 90°.

Solving for x:

(x+15)+(x)=90°

(x+15-15)+(x)=90°-15

(x)+(x)=75°

2x=75°

2x/2=75°/2

x=37.5°

Checking the work:

ABC=37.5°+15=52.5°

CBD=90°

DBE=37.5°

In conclusion, ABC plus CBD plus DBE equals 180°

<em>Hope this helped!</em>

6 0
4 years ago
Graph the function y=x-5. What is the zero of this function?*
ioda

Answer:

(5,0)

Step-by-step explanation:

"The zero" means the 'x-intercept' of the graphed equation.

That gives you the value of x (first number in the pair) that you substitute in the equation to make it true to get  the value of y  being 0, (the second number in the pair.

y = x - 5 substitute 0 for y and 5 for x and check

0 = 5 - 5   True.

Or to solve if no choices are there to select

0 = x-5      add 5 to both sides of the equation

0 + 5 = x -5 + 5   -5 +5 = 0

5 = x

Ot graph the equation

8 0
3 years ago
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