2 years ago

How do you do this equation? 9x+(y)i-5=-12+4

1 answer:

3 0

$9x+yi-5=-12+4\\\\(9x-5)+yi=-13\iff9x-5=-13\ and\ y=0\\\\9x=-13+5\\9x=-8\\x=-\frac{8}{9}\\\\Answer:x=-\frac{8}{9}\ and\ y=0.$

You might be interested in

Jamar is four times as old as Josh. In 20 years he will be twice as old as Josh. How old is Jamar?

Juliette [100K]

Simultaneous equations
Jamar=J
Josh=j
4J=j
20+J=2j
Then
4J=j
-4 (J)=-4(2j-20)
So
0=-7j+80
7j=80
j=80÷7

5 0

2 years ago

What is this math problem

fgiga [73]

40×5+12 is ur. equaio

4 0

3 years ago

Read 2 more answers

Plz help I was in the hospital and I am behind in math now. How do I show my work for this?!

denis-greek [22]

Answer:

-16

Step-by-step explanation:

$28-(\sqrt{44} )^2\\28 - (44)\\-16$

When you square a square root, the number inside is the answer.

8 0

2 years ago

Express 4.67 as a mixed number

dsp73

Answer:

4.671 = (4.67 × 100)(1 × 100) = 467100.

Step-by-step explanation:

As the numerator is greater than the denominator, we have an IMPROPER fraction, so we can also express it as a MIXED NUMBER, thus 467100 is also equal to 467100 when expressed as a mixed number.

8 0

2 years ago

Read 2 more answers

Helppppp plzzzzzzz steppsss iff posiblleeee, will mark brailest!!!!!!!!!!!!!!!!!!!!!!!!!

dem82 [27]

Answer:

Step-by-step explanation:

126+x=180

x=180-126=54

x=54

6 0

2 years ago