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2 years ago

Which values of a and b make the following equation true (5x^7y^2) (-4x^4y^5) = -20x^a y^b

Mathematics

1 answer:

Nadya [2.5K]2 years ago

5 0

In x^7•x^4, how many x’s are multiplied together? (There’s 7 in the first factor and 4 in the second.)

x^7•x^4 = x^__? This is your a-value.

Similarly, y^2•y^5 = y^__? How many y’s are there in total being multiplied? This is your b-value.

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Zoya asked the students of her class their baseball scores and recorded the scores in the table shown below: Baseball Scores Sco

nlexa [21]

Answer:

4.06

Step-by-step explanation:

Given :

Scores Number of students

0 1

1 2

2 5

3 3

4 6

5 7

6 9

To Find: Mean

Solution:

Mean = $\frac{\text{Sum of all scores}}{\text{number of students}}$

Mean = $\frac{0 \times 1+1\times 2+2\times 5+3\times 3+4\times 6+5\times 7+6\times 9}{1+2+5+3+6+7+9}$

Mean = $\frac{134}{33}$

Mean = $4.06$

Hence, The Mean of baseball score is 4.06 .

4 0

2 years ago

Read 2 more answers

Words that came from the same ancestral language and originated from the same word are called

Anna71 [15]

Words that came from the same ancestral language and originated from the same word are called COGNATE WORDS.

In linguistics, cognates are words that have a common etymological origin. These are words in two languages that share a similar meaning, spelling, and pronunciation. For an instance, English words have lots of related words in Spanish.

8 0

2 years ago

Read 2 more answers

Question: Which number is divisible by 5 and 10?

Harrizon [31]

Answer:

9,450

Step-by-step explanation:

10 cant go into the others because they end with a 5

8 0

2 years ago

5x^3-2x^2+14x+7x^2+3x-11

oksian1 [2.3K]

If the answer your looking for is a graph then yeah

4 0

2 years ago

Please answer correctly !!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!

katrin2010 [14]

Answer:

Step-by-step explanation:

Pythagorean Theorem

a²+b²=c²

(c² is the hypotenuse)

a² + 40² = 41²

a² + 1,600 = 1,681

subtract 1681-1600 in order to isolate a², which is the missing leg we are trying to find

a² = 81 in order to find our answer, we isolate a by squaring both sides

√a² = √81

a = 9

Our answer is 9.

6 0

2 years ago