Ask question

Ask question

All categories

4 years ago

13

A polynomial function has -5+√3t as a root. Which of the following must also be a root of the function? a) -5-√3t b) -5+√3t c) 5

-√3t d) 5+√3t

1 answer:

juin [17]4 years ago

4 0

Answer:

a

Step-by-step explanation:

Radical roots occur as conjugate pairs

Given - 5 + $\sqrt{3}$ t is a root , then

- 5 - $\sqrt{3}$ t is also a root → a

You might be interested in

One Us dollar equals .84 euros. Margo is traveling and wants to exchange $400 for euro. how many euros will she get?

Galina-37 [17]

Answer:

336€

Step-by-step explanation:

$1 = .84€

(Multiply by 400)

$400=336€

6 0

3 years ago

Read 2 more answers

Dontrell's toy race car travels at 1.5 feet per second. Dontrell ran his race car for 35 minutes last Saturday. There are 60 sec

Arte-miy333 [17]

1.5 ft per second = 1.5(60) = 90 ft per minute

90 ft per minute for 35 minutes = (90 * 35) = 3150 ft

7 0

3 years ago

Read 2 more answers

Here is a list of numbers: 4 , 9 , 2 , 5 , 4 , 20 , 16 , 9 , 5 , 12 State the median.

statuscvo [17]

Answer:

I'm pretty sure the median is 7

Step-by-step explanation:

Well To find the median, first order your data. Then calculate the middle position based on n, the number of values in your data set.

2 2 4 5 5 9 9 12 16 20. Then add the 2 middle numbers. 5 and 9. It is (5+9) divided by 2 is 7.

Hope this helps!

5 0

2 years ago

A multiple choice exam has ten questions. Each question has five possible answers, of which one is correct. Suppose that a stude

Ber [7]

Answer:

8.81% probability that the student answers exactly 4 questions correctly

Step-by-step explanation:

For each question, there are only two possible outcomes. Either he answers it correctly, or he does not. The probability of answering a question correctly is independent of other questions. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

In which $C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

And p is the probability of X happening.

A multiple choice exam has ten questions.

This means that $n = 10$

The probability of answering any question correctly is 0.20.

This means that $p = 0.2$

What is the probability that the student answers exactly 4 questions correctly

This is P(X = 4).

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

$P(X = 4) = C_{10,4}.(0.2)^{4}.(0.8)^{6} = 0.0881$

8.81% probability that the student answers exactly 4 questions correctly

4 0

4 years ago

Here is an illustration of a bedroom. The striped wall and the floor<br> intersect at a

-Dominant- [34]

The striped wall and the floor intersect at a 90 degrees angle since they are perpendicular.

<h3>What is an angle?</h3>

An angle is formed when two or more lines intersect at a point. Types of angles are<em> acute, obtuse, and right angled</em>.

Two lines are said to be perpendicular if there is a 90 degrees angle between them.

The striped wall and the floor intersect at a 90 degrees angle since they are perpendicular.

Find out more on angle at: brainly.com/question/25716982

#SPJ1

5 0

2 years ago