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jok3333 [9.3K]
3 years ago
12

How do u do this? HELPPPPPPPPPPPP

Mathematics
2 answers:
qaws [65]3 years ago
8 0
You would multiply the like (or similar) terms together. 

2*4= 8

-5i*7i= -35i

The correct answer is "A".

I hope this helped you.

Brainliest answer is always appreciated. 
adell [148]3 years ago
6 0
Your answer is a; since one set of numbers have an "i" next to them, you multiply those terms together. The normal terms multiply together, since they are "like terms," meaning that they don't have variables (or they have the same variable). therefore, you end up with 8-35i
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A shirt originally cost $42.54, but it is on sale for $29.78. What is the percentage decrease of the price of the shirt? If nece
Genrish500 [490]

Answer:

The difference is 30%

Step-by-step explanation:

To find the percent decrease, start by finding the difference in costs.

42.54 - 29.78 = 12.76

Now divide that amount by the original cost.

12.76/42.54 = 30%

4 0
2 years ago
Solve the equation for all values of x.<br> ∣4x + 4 ∣- 10 = 3x
sertanlavr [38]

Answer:

X = 6 , – 2

Step-by-step explanation:

| 4x +4| - 10 =3x

4x +4 - 10 = 3x

4x - 3x = 10 - 4

x = 6

_____o___o____

– (4x + 4) – 10 = 3x

– 4x – 4 – 10 = 3x

3x + 4x = – 4 – 10

7x = – 14

x = – 14/ 7

x = – 2

I hope I helped you^_^

6 0
2 years ago
Suppose a scientist reported the following data regarding the presence bacteria during the first four hours of testing for a new
OlgaM077 [116]

The recursive geometric sequence that models this situation is:

f(n) = 0.9f(n-1)

f(1) = 90000

<h3>What is a geometric sequence?</h3>

A geometric sequence is a sequence in which the result of the division of consecutive terms is always the same, called common ratio q.

It can be represented by a recursive sequence as follows:

f(n) = qf(n-1)

With f(1) as the first term.

In this problem, the sequence is: 90.000: 81,000; 72,900; 65,610, hence:

q = \frac{65610}{72900} = \cdots = \frac{81000}{90000} = 0.9

f(1) = 90000

Hence:

f(n) = 0.9f(n-1)

f(1) = 90000

More can be learned about geometric sequences at brainly.com/question/11847927

7 0
1 year ago
Can anyone help me with 24,27,30 and 33 please
mamaluj [8]
24) 9/19

27 is a bit tricky for me.. sorry ):

30) On the 7th it will be 1/120
33) C
7 0
2 years ago
{(-3,9), (-2, 4), (0, 0), (1, 1)}<br> Find the inverse
Elena-2011 [213]

Answer:

Step-by-step explanation:

to find the inverse, just switch x and y

so if u have these points : (-3,9) , (-2,4), (0,0), (1,1)

the inverse would be : (9,-3) , (4,-2), (0,0), (1,1)

5 0
2 years ago
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