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2 years ago

What did I do wrong here?

Mathematics

1 answer:

photoshop1234 [79]2 years ago

7 0

Answer:

You put 8i^2 instead of 12i^2. You multiply -6i by -2i which equal -12i^2

Step-by-step explanation:

-7 + 6i - 14i+ 12i^2

-7 - 8i - 12

-19 - 8i

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Graph the function. f(x)=2x^2-5<br> please help ill give you brainliest

snow_lady [41]

f(x)=2x^2+0x-5

Find the vertex

0/4=0=x

Input x into the equation to find y or f(x)

0+0-5=f(x)

(0,-5) = Vertex

Now find a random x coordinate to input into the equation.

Let's do 4.

32+0-5=f(x)=27

It may not look like a parabola due to it being uneven.

5 0

2 years ago

Which method or methods listed below describe a solid system for keeping financial records? I. Making a mental note of all purch

Nikitich [7]

Financial records are important records and thus, needs to be saved safely. The method for solid system to keep it is: Option d. I, II, and III

<h3>How to safely keep financial records and why?</h3>

Financial records are records of all financial transactions and receipts. They're needed for future cases like some contradictions, to get past details, to analyze data to make prediction about future sale and for development of the organization etc.

For keeping them, they should be saved in an easily accessible, and hardly destroy-able place. So that its prevented safely but accessible faster with correct authentication.

For the given case, for solid system for keeping financial records, we can actually follow all the three steps provided.

I. Making a mental note of all purchases made during the week. II. Recording money spent in a hand-held notebook. III. Organizing receipts and transactions on a computer.

Thus,

The method for solid system to keep it is: Option d. I, II, and III

Learn more about financial records here:

brainly.com/question/4954869

7 0

2 years ago

ms. Omar runs the school tennis club. She has a bin of tennis balls and rackets. For every 5 tennis balls in the bin, there are

irina1246 [14]

Answer:

$a=\frac{5}{3}b\\\\or\\\\3a=5b$

Step-by-step explanation:

let a be the number of tennis balls.

let b be the number of tennis rackets.

We write determine the ratio of balls to rackets by dividing the number of balls by the number of rackets:

$\frac{a}{b}=\frac{5}3}\\\\a=\frac{5}{3}b$

For every one ball, there 5 thirds of a racket.

We plot this function on a graph to visualize our model;

4 0

3 years ago

Huh?<br><br>6(2 + 4) - 1<br>_________<br>2 x 3 + 1

a_sh-v [17]

Answer:

equaul

Step-by-step explanation:

4 0

3 years ago

making 10 pounds of Apple Jam requires five pounds of Apple how many pounds of Apple are needed to make eight pounds of apple ja

allochka39001 [22]

10lb. of jam needs 5lb. apple, or 2lb. of jam needs 1lb. apple.
Now we want 8lb. of jam.
Set up a proportion:
2/1=8/x
Solve for x by cross-multiplying.
2x=8
x=4 lb. of apple

5 0

3 years ago

What did I do wrong here?​

What did I do wrong here?