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inysia [295]
3 years ago
7

Coach Burns charted the change in his runners’ 5K times from the first race of the year to the second race of the year. Which st

udent improved the most by decreasing the time needed to run the race? PLEASE HELP IM ON A EXAM!!!
Mathematics
2 answers:
Alecsey [184]3 years ago
8 0

Answer:

student a

Step-by-step explanation:

i just took the exam

Andrews [41]3 years ago
4 0

Answer:

Student a

Step-by-step explanation:

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Multiply each of the following numbers 7.32, and 0.006 by 10, 100, and 1,000. Then explain the pattern you can use to find the p
dangina [55]

7.32

10 = 73.2

100 = 732

1000 = 7320

0.006

10 = 0.06

100 = 0.6

1000 = 6

The decimal place moves to the right depending on how many zeros the number has.

For example, if you had 0.6 multiplied by 100, you would move 2 decimal places to the right because 100 has two zeros.

3 0
3 years ago
What is the answer?<br> xy = 30<br> and x + y = 18
drek231 [11]

from second equation y = 18-x so:-

x(18 - x) = 30

x^2 - 18x + 30 = 0

x = 16.14, 1.86


when x = 16.14 y = 18-16.14 = 1.86

when x = 1.86, y = 16.14


so one variable = 16.14 and the other = 1.86 Answer

3 0
2 years ago
Which one of the following is not closed under the operation being performed
Sergeu [11.5K]
Remember that polynomials are closed under addition, subtraction, and multiplication, but they are not closed under division. The only division you have there is B; therefore the correct answer is B.

A. (14x-2)3(x-2)=14 x^{2} -90x+10. The result is still a polynomial; therefore, answer A is incorrect.

B. \frac{(14x-2)}{3(x-2)} =  \frac{14}{3} with a remainder of 26. The result is not a polynomial anymore; therefore, B is the correct answer.

C. (14x-2)+3(x+2)=17x+4. The result is still a polynomial; therefore, answer C is incorrect.

D. (14x-2)+3(x+2)=17x+4. The result is still a polynomial; therefore, answer D is incorrect.
4 0
3 years ago
A survey was conducted at Giant Supermarket where 50 students were randomly chosen and asked
Dima020 [189]

Answer:

The answer for both apples and bananas is 21

The answer for only apples or only bananas is 45

Step-by-step explanation:

36 plus 30 minus 45

50-5 is 45

only apples or bananas is 15 + 9

8 0
3 years ago
Explain why three-dimensional graphs can be misleading. What would be a better type of graph to
scoundrel [369]

three-dimensional graphs wouldn´t give you the right information but two-dimensional graphs would give you the actual size of the shape.

6 0
2 years ago
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