SAT High School

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

Answers

Answer 1

Answer:

D

Explanation:

All above are true.

Answer 2
D. All of the above are true

Related Questions

When 1/2 of the number N is decrease by four, the result is -6. What is three times N added to seven?

Answers

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.

If a/b=1, what is the value of a-b?

Answers

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.

What is the absolute value of the ratio?

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.

What is the a value in absolute value?

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.

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10. Which of the following pieces of safety equipment is required on your boat and must appear as an item on your Pre-Departure
Checklist?
A reflective mirror surface
A waterproof compass
Extra clothes and towels
Working navigation lights

Answers

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.

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How many credits of Science is a student required to take in the Foundation Graduation Program?

Answers

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:

Amit is going to guess on all 20 questions of his multiple-choice test. Each question on the test has 4 answer options, and only one is correct.
Choose 1 answer:

(Choice A)
A
Exactly 5 questions

(Choice B)
B
Close to 5 questions but probably not exactly 555 questions

(Choice C)
C
Exactly 80 questions

(Choice D)
D
Close to 80 questions but probably not exactly 808080 questions

Answers

B ! Close to 5 but not exactly 555 questions

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   :)

what is the range of the function f(x)=3x^2+12x + 18

Answers

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.

What is the overall structure of the "Pros and Cons of Cryptocurrency" section of "The Future of Money"? The text explains problems with cryptocurrency and solutions to make it more effective. It outlines the history of cryptocurrency and describes possible changes for its future use. The text uses comparison to show different opinions about the use of cryptocurrency. It uses order of importance to highlight the most useful aspects of cryptocurrency.

Answers

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.

How does a cryptocurrency work?

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.

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Sammy incorrectly solves the equation 1/3 (x +9) = 8. Her work is shown below. Which step shows an error based on the equation only from the previous step. Select all that apply.

Answers

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

can you pass 7th grad with 1 A, 2 C's, 7 D's, and 2 I's​

Answers

My friend flunked 8th grade but yet continued onto high school. But note, your parents can say yes to holding you back if a teacher recommends so. But other than that, you probably won’t get held back. But you will get held back in high school if you don’t pass.
It depends on the classes

The dnsity of aluminum is 2. 70 g/mL. if the mass of a piece of aluminum is 244 grams, what is the volume of the aluminum

Answers

27.0 g

Explanation:
The density of a substance tells you the mass of exactly one unit of volume of said substance.
In your case, aluminium is said to have a density of
density Al
=
2.70 g
.
cm
−
3
This tells you that every
1 mL
of aluminium has a mass of
2.70 g
.
All you have to do now is use the density of aluminium as a conversion factor to go from cubic centimenters of aluminium to grams
10.0
cm
3
⋅
2.70 g
1
cm
3
=
27.0 g
−−−−−
The answer is rounded to three sig figs.

Which areas does acid rain most likely form before rain

Answers

In the clouds
I think

Which of these is most likely an invertebrate? A mushrooms, which are fungi but are often mistaken for plants B oak trees, which belong to the plant kingdom and produce acorns C chimpanzees, which belong to the animal kingdom and related to humans D comb jellies, which belong to the animal kingdom and share many characteristics with jellyfish

Answers

Answer:mushroom

Explanation:i alredy did the qustion before

Last night, the two dinner specials at Luna's favorite restaurant were salmon filet and steak. The restaurant served 40 specials in all, 25% of which were salmon filets. How many salmon filets did the restaurant serve

Answers

Answer:

10

Explanation:

40×25/100=

4×25/10=

100/10=10

the density of the American white oak tree is 752 kilograms per cubic meter if the volume of a American oak is 12.89 cubed. What is the approximate number of kilogram of the trunk

Answers

Answer:

a,sv sakv

Explanation:

kjsvhISUHfn

[tex]3x + 2y + 2z = 19\\3x + y + z = 14\\[/tex]
If the equations above are true, which of the following is the value of y + z?

(A.) -5
(B.) -4
(C.) 0
(D.) 4
(E.) 5

Answers

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

In a certain Algebra 2 class of 21 students, 12 of them play basketball and 14 of them
play baseball. There are 5 students who play neither sport. What is the probability
that a student chosen randomly from the class plays basketball or baseball?​

Answers

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.

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