Find the degree of the polynomial: 8r3 + 7r5 + 2r

Answers

Answer 1

Answer: 5. The degree of the polynomial is the highest number degree in the polynomial.

Answer 2

Answer:

Final answer:

The degree of a polynomial is determined by the highest exponent in the terms of the polynomial. The polynomial 8r3 + 7r5 + 2r has a degree of 5, which is the exponent of the highest-degree term, 7r5.

Explanation:

In Mathematics, when dealing with a polynomial, the degree of the polynomial refers to the highest power of the variable in the polynomial. For the given polynomial, 8r3 + 7r5 + 2r, we can see that the degrees of each term are 3, 5, and 1 respectively. The term with the highest degree is 7r5 which has a degree of 5. Therefore, we can conclude that the degree of the given polynomial is 5.

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There are 21 students in Mrs. Callan's class. There are 14 students in her class that got an A on the last spelling test. In simplest form, what fraction of Mrs. Callan's class got an A on the last spelling test?

Answers

14 students in 21 student got an A on the test so 14/21 people got A. the numerator and the denominator are both divisible by 7 so the simplest form of this fraction would be 2/3

-3a+6b=a+4b I need to solve this please.

Answers

Answer:

a*2=b

a=0, b=0

Step-by-step explanation:

if a=0 and b=0, then 0=0, it'd be correct, but I'm sure that's not the answer they intend you to pick. You should still put that as one of the answers, however.

-3a+6b=a+4b

+3a +3a

6b=4a+4b

-6b -6b

0=4a-2b

/2 /2 /2

0=2a-b

so, we now know that b is twice the amount that a is, and actually, that's the solution for the entire thing.

So, the answer is a*2=b, because the equation works for any set of numbers, as long as it follows this rule.

A research group interested in understanding the effect of listening to classical music on learning mathematics conducted a study. One hundred students were randomly assigned to one of two groups. The first group listened to classical music as they learned a new lesson. The second group learned the same lesson with no music playing. Both groups were tested on the new material to determine how much they learned. The results for the two groups were compared. What kind of study is this?This is an observational study because students were randomly assigned to groups.
This is an observational study because a treatment was applied to both groups.
This is an experiment because a treatment was applied to a group.
This is an experiment because students were able to choose which group to join.

Answers

First of all, this is not an observational study, but an experiment, since we have two groups and one of the two groups is manipulated or treated. In an observational study the subjects are only observed.

Second, the students did not choose their groups - so we can't choose the last answer.

Therefore the correct answer is:
This is an experiment because a treatment was applied to a group.

Answer:

This is an experiment because a treatment was applied to a group.

Step-by-step explanation:

given: km and jn bisect each other. do triangle jkl and triangle nml meet SAS criteria.. NEED DESCRIPTION

Answers

Yes. The SAS or the Side-Angle-Side postulate is a theorem that states that when two sides of the triangles are congruent, as well as their included angle, the triangles are congruent. Since they bisect each other, they have equal halves of the whole length. And since opposite angles are congruent, their included angles are also congruent.

Caroline bought 20 shares of stock at 101/2, and after 10 months the value of the stocks was 111/4. If Caroline were to sell all her shares of this stock, how much profit would she make? A. $15 B. $10 C. $225 D. $210