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olganol [36]
3 years ago
11

Simplify the expression. (6 - 4i)(-1 + 6i)

Mathematics
2 answers:
pentagon [3]3 years ago
8 0

Answer:

18 + 40i

Step-by-step explanation:

This is the product of two binomials:  

Recall that (a + b)(c + d) = ac + ad +bc + bd; thus,

(6 - 4i)(-1 + 6i) = -6 + 36i + 4i + 24, or

                      = 18 + 40i

(Recall that i^2 = -1.)

alex41 [277]3 years ago
5 0

Answer:

18+40i

(hope this helps can I pls have brain list (crown) ☺️)

Step-by-step explanation:

In pic

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Ginnys team scored 22 points during the first half of a basketball game.Her team scored 39 points during the second half of the
charle [14.2K]

Her team scored a total of 22+39 = 61 points. This is 8 points higher than the other team, so the other team scored 61-8 = 53 points.

As for which expression your teacher wants as the final answer, it will depend on how simplified you want it to be. You could have the following possible answers:

  • 22+39-8
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Other expressions may be possible as well.

7 0
3 years ago
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anastassius [24]

Answer:

54

Step-by-step explanation:

6(6)+3(9)-9

=54

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4 years ago
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Which equation represents this statement?
OLEGan [10]

Answer:

A

Step-by-step explanation:

5 + 2x = 3x - 1

4 0
3 years ago
Mary is using a one-sample t-test on the following group:Subject #15: 7.5 hoursSubject #27: 6 hoursSubject #48: 7 hoursSubject #
elena-14-01-66 [18.8K]

Based on the information given, the correct options will be:

a.) Mary would use the sample standard deviation to calculate a t-statistic.

c.) The value for the degrees of freedom for Mary's sample population is six.

One-sample t-test simply means a statistical hypothesis test that's used for the determination of whether an unknown population mean will be different from the specific value.

In this case, the value of the degree of freedom for the sample will be:

= (n - 1) = 7 - 1 = 6.

Also, it should be noted that Mary would use the sample standard deviation to calculate a t-statistic.

Learn more about statistics on:

brainly.com/question/15525560

6 0
3 years ago
PLEASE HELP ME!!!!!!!!! (100 points)
velikii [3]

Answer:

Domain [2,5)

Range (-6,18]

Step-by-step explanation:

Domain is shifted 2 units to the right because of the horizontal shift so it is [2,5)

Range is multiplied by 3 because of the vertical stretch so it is (-6,18]

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3 years ago
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