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Zinaida [17]
4 years ago
14

Examine the complex number 8−4i. A: What is the real part of the complex number? B: What is the imaginary part of the complex nu

mber? Select one answer for part A, and select one answer for part B.
Mathematics
2 answers:
olganol [36]4 years ago
8 0

Answer:

Step-by-step explanation:

The real part of 8 - 4i is 8 and the imaginary part is -4i.

ELEN [110]4 years ago
6 0

The real part is the real number, which in this case is the 8..

the imaginary part has the i attached to it, which is 4

4i is the imaginary part

Please vote my answer brainliest. thanks!

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Please elaborate on this so that I can help you.
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432 students went on a field trip. Eight buses were filled with students. The
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Each bus was filled with 54 students
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if the following line are parallel peroendicular coinciding or intersectining but not perpendicular ????
Lapatulllka [165]

Answer:In elementary geometry, the property of being perpendicular (perpendicularity) is the relationship between two lines which meet at a right angle (90 degrees). The property extends to other related geometric objects. A line is said to be perpendicular to another line if the two lines intersect at a right angle. Explicitly, a first line is perpendicular to a second line if (1) the two lines meet; and (2) at the point of intersection the straight angle on one side of the first line is cut by the second line into two congruent angles.

Step-by-step explanation:

6 0
3 years ago
Anyone who plays or watches sports has heard of the "home field advantage." Teams tend to win more often when they play at home.
AveGali [126]

Answer:

H0 : μ = 0.5

H0 : μ > 0.5

Kindly check explanation

Step-by-step explanation:

H0 : μ = 0.5

H0 : μ > 0.5

We perform a right tailed test :

Sample proportion :

Number of games won, x = 142

Number of games, n = 250

phat = x / n = 142 / 250 = 0.568 = 56.8%

Yes, it is consistent

Test statistic :

(phat - p) * √Phat(1-Phat)/n

1 -Phat = 1 -0.568 = 0.432

(0.568 - 0.5) /√(0.568*0.432)/250

0.068 / 0.0313289

= 2.17

The Pvalue using the z test statistic :

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α = 0.03

Since ;

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8 0
3 years ago
A can is 4 inches wide and 8 inches tall. To the nearest whole number, what is the area of a label that wraps around the can if
Yakvenalex [24]

Answer:

The area of a label is 62.8\ in^{2}

Step-by-step explanation:

we know that

The lateral area of a cylinder (label of the can) is equal to

LA=2\pi rh

we have that

A can is 4 inches wide

so

The diameter of the can is 4 inches

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h=8-3=5\ in ----> height of the label

substitute in the formula

LA=2(3.14)(2)(5)=62.8\ in^{2}

5 0
4 years ago
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