1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
anastassius [24]
3 years ago
15

HELP PLZZ!!!!!!!! Look at this equation: 2 H2 + O2 --> 2 H2O. Why isn't there any coefficient in front of oxygen?

Mathematics
2 answers:
Nostrana [21]3 years ago
7 0
All of them are correct
HACTEHA [7]3 years ago
4 0

Answer:

D. All of these

Step-by-step explanation:

You might be interested in
Julie is 3 years older than her sister. Julie's age is 11 years old.<br> How old is her sister?
Ne4ueva [31]

Answer:

14 :)

Step-by-step explanation:

4 0
3 years ago
Which graph represents y as a function of x ?
inna [77]
The answer is the H. Graph.
7 0
3 years ago
Read 2 more answers
It appears that people who are mildly obese are less active than leaner people. One study looked at the average number of minute
fredd [130]

Answer:

0.0322; 0.9929

Step-by-step explanation:

Since the data is normally distributed, we use z scores for these probabilities.

The formula for a z score of a sample mean is

z=\frac{\bar{X}-\mu}{\sigma \div \sqrt{n}}

For the sample of mildly obese people, the mean, μ, is 371; the standard deviation, σ, is 65; and the sample size, n, is 6.

Using 420 for X,

z = (420-371)/(65÷√6) = 49/(65÷2.4495) = 49/26.5360 ≈ 1.85

Using a z table, we see that the area under the curve to the left of this is 0.9678.  However, we want the area to the right, so we subtract from 1:

1-0.9678 = 0.0322

For the sample of lean people, the mean, μ, is 528; the standard deviation, σ, is 108; the sample size, n, is 6.

Using 420 for X, we have

z = (420-528)/(108÷√6) = -108/(108÷2.4495) = -108/44.0906 ≈ -2.45

Using a z table, we see that the area under the curve to the left of this is 0.0071.  We want the area under the curve to the right, so we subtract from 1:

1-0.0071 = 0.9929

7 0
3 years ago
Where did the symbol used for pi originate?
Andrej [43]

it comes from the Greek alphabet

3 0
3 years ago
How many are 4 raised to 3 ???​
Likurg_2 [28]

Answer:

64

Step-by-step explanation:

4^3

This is 4 multiplied by itself 3 times

4*4*4

64

7 0
3 years ago
Other questions:
  • If two polygons are SIMILAR, then the corresponding sides must be and the corresponding angles must be .
    14·1 answer
  • Brad has eight more nickels than quarters. Altogether he has $6.10. how many of each does he have
    14·1 answer
  • A rectangle has side measurements of 12 units and 8 units. What is the approximate measure of a diagonal that cuts through the r
    10·1 answer
  • I need help please it need to be correct
    10·1 answer
  • Question 13 (1 point)
    5·1 answer
  • The following set of data is to be organized into a histogram. If there are to be five intervals on the grap
    15·1 answer
  • PLS HELP! What is the distance between the following points?
    8·1 answer
  • Which radical expressions are equivalent to 7 5/4
    5·2 answers
  • 65= t - 5 - 7 what is t
    11·2 answers
  • Which graph represents a function? A coordinate plane shows 4 points with the following coordinates: (negative 3, 3), (negative
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!