Which statement is true of aerobic exercise?

a
It is a kind of activity that requires oxygen.
b
You may notice yourself breathing faster than normal when doing aerobic exercise.
c
It increases heart and lung fitness.
d
All of the above are true

Answer:mushroom

Explanation:i alredy did the qustion before

Answer:

Explanation:

We know there are 21 students in all, so that should be the denominator in this answer.

Then, to find the numerator, we need to find the number of students that play basketball and the number of students that play baseball, assuming that none of them play both sports. Just add those two numbers to get the numerator, and then put it on top of the 21.

You either typed this question incorrectly, or there is a mistake, because there are more kids that play basketball or baseball than there are students in the class.

Answer:

D

Explanation:

The safety equipment that is required on a boat and must appear as an item on your Pre-Departure Checklist includes: Working navigation lights.

Working navigation lights:

These lights are essential for maintaining visibility and complying with maritime regulations, especially during low-light conditions or at night.

While the other items you mentioned can be important for various reasons, they may not necessarily be required by law or specifically listed on a standard Pre-Departure Checklist.

However, it's always a good idea to have additional safety equipment and supplies on board, such as a reflective mirror surface for signaling, a waterproof compass for navigation, and extra clothes and towels for comfort and emergencies.

Hence the correct option is working navigation lights.

Learn more about safety equipment click;

https://brainly.com/question/28280971

#SPJ4

The overall structure of the "Pros and Cons of Cryptocurrency" section is The text uses comparison to show different opinions about the use of cryptocurrency.

The use of Cryptocurrency is known to be also called crypto-currency or crypto. This is said to be a  kind of digitally currency.

Conclusively, based on the text, The overall structure of the "Pros and Cons of Cryptocurrency" section is that the text uses comparison to show different opinions about the use of cryptocurrency.

Learn more about cryptocurrency  from

https://brainly.com/question/23956699

#SPJ1

Answer:

0.

Explanation:

If you do a=2 and b=2, then 2-2=0.

a/b=1

If you do a=2 and b=2, then 2-2=0.

a-b=0.

If a and b are real numbers then, |-a| = |a| a number and its negative have the same absolute values. |ab| = |a||b| The absolute value of a product is the product of the absolute values. |a/b| = |a|/|b| The absolute value of a ratio is the ratio of the absolute values.

The absolute value (or modulus) | x | of a real number x is the non-negative value of x without regard to its sign. For example, the absolute value of 5 is 5, and the absolute value of −5 is also 5. The absolute value of a number may be thought of as its distance from zero along real number line.

To learn more about a value in absolute value, refer

https://brainly.com/question/12928519

#SPJ2

Answer:

15

Explanation:

Well obviously her work is not shown below, at least for me, so I will just solve the equation.

1/3x+3=8

1/3x=5

X=15

Answer:

The answer is E

Explanation:

Before we find the value of 5, let's find x by using the elimination process for the two given equation.

2(3x + y + z = 14) → 6x + 2y + 2z = 28

3x + 2y + 2z = 19

-6x + 2y + 2z = 28

-3x = -9

x = 3

Now plug in 3 into both of the given equations, which will give you your new equation, then subtract them:

3(3) + 2y + 2z = 19 → 9 + 2y + 2z = 19

3(3) + y + z = 14 →   - 9 + y + z = 14

Our answer is: y + z = 5

Our value is 5

Optional: If you want to make sure it's 5, plug-in any random numbers for y and z that equals 5. For example: 3 + 2, 1 + 4, 5 + 0, 6 + (-1), etc...

Once you choose the numbers you can plug them into the two new given equations. For me, I decided to let y = 1 and z = 4:

9 + 2(1) + 2(4) = 19     9 + (1) + (4) = 14

9 + 2 + 8 = 19            9 + 1 + 4 = 14

19 = 19                       14 = 14

Answer:

10

Explanation:

40×25/100=

4×25/10=

100/10=10

Answer: {y∈R: y≤6} or [6,∞)

Explanation:

This problem doesn't require too much math. If you look at the equation given, you can see that it is a quadratic equation in the form of[tex]y=Ax^2+Bx+C[/tex]. Since this is a quadratic equation, we have an idea of that the graph would look like. It either curves up or down. Since this is a positive equation, [tex](+3x^2)[/tex], we know that this is going to curve up. In order to find the minimum of the curve, you would use [tex]\frac{-b}{2a}[/tex].

[tex]\frac{-12}{2(3)}=-2[/tex]

This means the x value of the parabola is -2. To find the y, you plug -2 into the  original equation.

[tex]f(2)=3(-2)^2+12(-2)+18[/tex]

[tex]f(2)=6[/tex]

Now that we know the y value of the minimum/vertex is 6, and it is determined that the parabola curves up, the range is y≤6 because the range starts at 6 and goes off toward infinity.

Answer:

a,sv sakv

Explanation:

kjsvhISUHfn

Answer:

Close to 5 but not exactly 5 questions (B)

Explanation:

i got this from maarriiaaaaa. thank you maarriiaaaaa

Also got it correct on Khan   :)

Answer:

Students can earn a Distinguished Level of Achievement under the Foundation program by completing four credits in math (must include Algebra II) and four credits in science, and obtaining at least one endorsement.

Explanation:

Answer:

5

Explanation:

Word problem.

First statememt

n/2 - 4 = -6. ....... (1)

Second statement.

3n + 7 = x. ....... (2)

From (1)

n/2 - 4 = -6.

n/2 = -6 +4

n/2 = -2

n= -4

Put n into (2).

3n + 7 = x

3(-4) +7 = x

x= -12 +7 = -5

The answer is -5.