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2 years ago

A polynomial has one root that equals 5 -7i. Name one other root of this poynomial.

Mathematics

2 answers:

Strike441 [17]2 years ago

3 0

Answer:

5+7i

Step-by-step explanation:

Scilla [17]2 years ago

3 0

Answer:

(5 + 7i)

Step-by-step explanation:

recall that the complex conjugate root theorem states that for a polynomial with real coefficients and with a complex root a + bi, then the other root must be the complex conjugate a - bi

in our case we are given that the polynomial (which we will assume to have real coefficients) has a complex root (5 - 7i)

if we compare this with our explaination above, we can see that a = 5 and b = -7.

hence the other root must be the complex conjugate of (5 - 7i) which is (5 + 7i)

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What is 27/9 times 198/3?<br><br> Asking for my sis in G5.

choli [55]

Answer:

198

Step-by-step explanation:

27/9 becomes three and then there is no need to divide 198 by three because it is being multiplied by three

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2 years ago

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Given a data set consisting of 33 unique whole number observations, its five-number summary is:

Lemur [1.5K]

Answer:

given a data set of 33 unique whole number observation,its five number sumary is [16, 29, 40 ,54, 67]

Step-by-step explanation:

The p-th percentile in an ordered (from low to high) data set is a value such that p% of the data is less than that value. The quartiles of a data set are the 25th, 50th and 75th percentiles. (The 25th percentile is usually called the first quartile, the 50th percentile is usually called the median, and the 75th percentile is usually called the third quartile.)

The formula for finding the location (or position) of the (approximate) pth percentile in an ordered (from low to high) data set is

L p=(n+1).p/100

For example, in the data set [2,4,6,8,10,12,14,16,18]

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L 60=(9+1).60/100=6

that is, the sixth data point (the value 12) is at the (approximate) 60th percentile.(Actually, only 55.6% of the data is below a 12.)

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3 years ago

Can someone answer this question please answer it correctly if it’s corect I will mark you brainliest

marshall27 [118]

Answer:

5) 27/70

6) 90

Step-by-step explanation:

5) The first step in this problem is to figure out the amount of total spins. To do so, add up all of the numbers in the column "Frequency".

18 + 15 + 27 + 10 = 70.

Now, look at the amount of times the spinner landed on green. This is 27 times. So, the ratio of green spins to total spins is 27:70, or 27 out of 70 spins. Converting this to a fraction, we get the final answer, 27/70.

6) To solve this problem, we have to first do the same steps as the previous problem, but with the color red. There are 70 total spins, and 18 red spins. Therefore, the ratio is 18:70. However, this problem wants the total number of spins to be 350. In other words, 70 needs to become 350. To do this, multiply each side of the ratio by 5. The ratio becomes 90:350. Using this ratio, we can determine that a solid prediction is 90 red spins out of 350 total spins.

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2 years ago

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Put into slope intercept form

Rudiy27

The slope is 2 units down for 9 units over, so is -2/9. The y-intercept is 4.

In slope-intercept form the equation of the line is
y = (-2/9)x +4

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3 years ago

Which theorem or postulate proves the two triangles are similar?

Andre45 [30]

Answer:

The corresponding pair of sides are in the same ratio.

Step-by-step explanation:

For two triangles to be similar, the theorem that is required is the corresponding sides of the two triangles are in the same ratio.

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The ratios of the corresponding sides are $\frac{20}{16} = \frac{19}{\frac{76}{5} } = \frac{5}{4}$

If two pairs corresponding sides are in 5 : 4 ratio, then the third pair of corresponding sides will also be in 5 : 4 ratio.

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3 years ago