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HACTEHA [7]
2 years ago
8

Simplify the expression below as much as possible.

Mathematics
2 answers:
Sindrei [870]2 years ago
4 0

Answer:

Yes the answer would be 14+4i

Step-by-step explanation:

1. remove parentheses

7+4i+9+5i-(2+5i)

Simplify each term

Apply the distributive property.

7+4i+9+5i-2-(5i)

Multiply -1 by 2

7+4i+9+5i-2-(5i)

Multiply 5 by -1

7+4i+9+5i-2-5i

Simplify by adding terms.

Add 7 and 9.

16+4i+5i-5i

Subtract 2 from 16.

14+9i-5i

Add 4i and 5i.

14+9i-5i

Subtract 5i from 9i.

And boom your answer 14+4i ....:)))

kogti [31]2 years ago
3 0
The answer will be 14+4i
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Please help look at the picture
k0ka [10]

Answer:

y = - 5x - 1

Step-by-step explanation:

The first thing to do (always) is pay attention to x =0. That at least gives you a partial answer. y = y' - 1. when you put 0 in for whatever y' is you get 0. What about the other numbers? How did they come about.

We have another clue. Whenever you put in a positive number for x, you get a negative answer for y. That's interesting. So y' has a minus sign associated with it.

y = -ax - 1    Make a>0 so there is only 1 minus sign. x cannot have an even power, because an even power would make everything positive except the -1.  

So we'll start with y= - ax - 1 We'll also make the assumption that a = 1

y = - x - 1 That won't work. a >1 otherwise x = 2 won't give - 11

y = -ax - 1

let x = 2

let y = - 11 Solve for a

y = - ax - 1

- 11 = -a*-2 - 1       add   1  to both sides

-11 + 1 = - a(-2) - 1 + 1

- 10 = -2a             Divide by - 2

- 10/-2 = -2a/-2

a = 5

Answer: y = - 5x - 1

8 0
2 years ago
The heights of a students(in cm) are:54,52,56,54,58,51.<br><br> Find the median.​
kumpel [21]

Answer:

To answer this question you will use the median height of 156 centimeters and the fact that there are 26 kids in the class to know that the median is not in the data set, therefore it breaks the data into two equal halves with 13 in each half.

There would be 13 less or equal to the median height.

hope i helped ;)

6 0
3 years ago
What is the area of triangle GHJ
EastWind [94]
A = 1/2 bh = 1/2 (3)(4) = 12/2 = 6

answer is B. 6 square units
4 0
3 years ago
The radius of a circle is 6 millimeters. What is the circle's circumference?
Gala2k [10]

Answer:

C =37.68 mm

Step-by-step explanation:

The circumference of a circle is given by

C = 2*pi*r

C = 2(3.14)*6

C =37.68 mm

4 0
2 years ago
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What is the inverse of the function f (x) = 3(x + 5)2 – 4, such that x ≤ –5?
natali 33 [55]
The ball followed a path modelled by the equation h = −0.001! + 0.5 + 2.5 where h is the height of the ball in feet and is the

distance in feet.
The ball followed a path modelled by the equation h = −0.001! + 0.5 + 2.5 where h is the height of the ball in feet and is the

distance in feet.


3 0
1 year ago
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