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puteri [66]
3 years ago
10

BRAINLIEST!!!

Mathematics
2 answers:
daser333 [38]3 years ago
6 0
(6 + 5i)(10- 15i)
60- 90i +50i - 75i2
60- 40i -75i2
Answer is C
sineoko [7]3 years ago
3 0

Answer:

c)  60-40i-75i^2

Step-by-step explanation:

first you multiply out the brackets then collect like terms to get the answer

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TELL me WHYYYYYYYYYYYYYYYYYYYYYYYYYYY
andrezito [222]

Answer:

I want it THAT WAY

Step-by-step explanation:

3 0
2 years ago
Sum of two numbers is 42 and their difference is 8 . Find the numbers ?​
worty [1.4K]

Answer:

25 and 17

Step-by-step explanation:

25+17=42

25-17=8

7 0
2 years ago
The sum of 4 consecutive numbers is equal to the sum of the next 3 consecutive numbers. Find the largest number.​
timurjin [86]

Answer:

The answer is: The largest number is 15.

Step-by-step explanation:

Let n = the number

n + (n + 1) + (n + 2) + (n + 3) = (n + 4) + (n + 5) + (n + 6)

4n + 6 = 3n + 15

n = 9

Proof:

9 + 10 + 11 + 12 = 19 + 23 = 42

13 + 14 + 15 = 27 + 15 = 42

Hope this helps! Have an Awesome Day!!  :-)

6 0
3 years ago
Read 2 more answers
The graph of a quadratic function intercepts the x-axis in the two places and the y-axis in one place.
wolverine [178]
Correct Answer:
Option 3: <span>The quadratic function has two distinct real zeros.

The function is quadratic, therefore it can have only 2 zeros. The knowledge of x-intercepts is needed to determine the zeros, y-intercepts has nothing to do with the zeros of a function. The given function has 2 unique x-intercepts, so according to the fundamental theorem of algebra, this function has 2 distinct real roots as number of distinct real roots are equal to the number of x-intercepts. Therefore, option 3 is the correct answer. </span>
4 0
3 years ago
Read 2 more answers
What is the common difference in this sequence: 4, 13, 22, 31, 40?
IgorC [24]

Answer:

9

Step-by-step explanation:

To find the common difference, take the second term and subtract the first term

13-4 =9

Lets check:

Take the third term and subtract the second term

22-13 =9

The common difference is 9

5 0
3 years ago
Read 2 more answers
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