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3 years ago

I don't understand this question

Mathematics

1 answer:

kotegsom [21]3 years ago

6 0

Answer: The correct answer is the third choice.

Step-by-step explanation: The question is asking you to look at pieces of data from the graph. The best way to do this question is to look at each question to determine whether the statement is true or false.

In looking at the each choice:

First one - The statement is true. Looking at the graph, a 40 and 50 year old person has the same average rate.

Second - The statement is true. Looking at the graph, you can see a steady decline from a 10 year old to a 20 year old person.

Third - The statement is false. A 10 year old and 20 year old do not have the same rate.

Fourth - The statement is true. A 20 and 30 year old have the same heart rate.

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Graph the line that has slope 1/2 and y intercept (0,-1).

puteri [66]

Answer: I added an attachment of what the graph should look like! :)

Step-by-step explanation:

5 0

2 years ago

Z to the power of 2 =1

stiv31 [10]

That would be written as:

$z^{2} = 1$

And the step-by-step equation would be:

$z^{2} = 1$ → we take the 2 to the right side of the equation and do the IO*

$z = \sqrt{1}$ →we solve for $\sqrt{1}$

$z = 1$ → final answer

*Ps - IO is not an existing term and stands for inverse operation. In this case, because when we take to 2 to the right side of the equation (the 2 is a power) it'll have to turn into a square root (because exponents and roots are inverse operations)

Hope it helped,

BioTeacher101

3 0

3 years ago

6 + (9 − 1) 2 ÷ 4 ⋅ 1 over 2 whole to the power of 4

Bas_tet [7]

Answer:

625

Step-by-step explanation:

1. parenthesis first, so it simplifies to ((6+(8)2÷4*1)/2)^4

2. pemdas says that multiplication and division go before addition and subtraction, so ((6+(8)2÷4*1)/2)^4 becomes ((6+16÷4*1)/2)^4 ---> ((6+4)/2)^4

3. then simplify inside of the parenthesis, so it becomes 5^4, which is 625

6 0

3 years ago

If the retail price of an item is $65, and the markup is 50%, find the wholesale price.

Montano1993 [528]

Answer:

32.5

Step-by-step explanation:

% over 100 = is/ of

50% over 100 = x / 65

cross multiply

3250/ 100x = 32.5

8 0

3 years ago

A soccer game is 90 minutes long. 36 minutes have passed . what percentage of the game has passed. can someone please help me

scZoUnD [109]

36 divided by 90 gives the percent so its 0.4 which is 40%

4 0

3 years ago

Read 2 more answers

I don't understand this question ​

I don't understand this question