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
Colt1911 [192]
3 years ago
9

Simplify each term by combining like terms: 5h + h + - 4h + 1 - 2h

Mathematics
1 answer:
motikmotik3 years ago
4 0
5h+h=6h
6h-4h=2h
2h+1=2h+1
2h+1-2h= 1
You might be interested in
The table shows the time 50 students spent on their homework.
seraphim [82]

Answer: Mean = 52.8 mins

Step-by-step explanation:

We have lapses of 30 minutes, so we can write the average for each, this means that:

0 < t < 30 can be averaged to the middle of the range: 15 min.

Doing this, we have that:

7 students 15 min

27 students 45 min

12 students 75 min

4 students 105 min.

Now we can calculate the mean:

mean = (x1*n1 + x2*n2 + ...)/N

where x1 is the amount of time 1, and n1 is the number of students associated to that time and so on. N is the total number of students

Mean = (7*15min + 27*45min + 12*75min + 4*105min)/(7 + 27 + 12 + 4)

Mean = 52.8 mins

8 0
4 years ago
Ramon read twice on Saturday. In the morning, he read for
LenKa [72]

Answer:

if the numbers are separated by a fraction bar the response should be 11/12th of an hour on Saturday.

Step-by-step explanation:

1/2=6/12

5/12+6/12=11/12

4 0
3 years ago
One-hour carbon monoxide concentrations in 43 air samples from a section of a city showed an average of 11.6 ppm and a standard
DENIUS [597]
The test statistic for difference between two means is given by:

z= \frac{(\bar{x}_1-\bar{x}_2)-(\mu_1-\mu_2)}{ \sqrt{ \frac{\sigma^2_1}{n_1} +\frac{\sigma^2_2}{n_2}} }

Thus, the appropriate test statistic is given by:

z= \frac{(11.6-6.4)-2}{ \sqrt{ \frac{(7.08)^2}{43} +\frac{(6.94)^2}{19}} } \\  \\ = \frac{5.2-2}{ \sqrt{ \frac{50.1264}{43} + \frac{48.1636}{19} } } = \frac{3.2}{ \sqrt{1.1657+2.5349} }  \\  \\ = \frac{3.2}{ \sqrt{3.7007} }  = \frac{3.2}{1.9237} =1.66

At 10% level of significance, the rejection region is given by

z\geq z_0

where: z_0 for 10% level of significance is 1.65

Since z = 1.66 > z_0=1.65, we reject the null hypothesis, which means that <span>the traffic control strategy does not reduce carbon monoxide concentrations by at least 2 ppm.</span>
3 0
3 years ago
What is equivalent to 9 to the 2nd power times 9 to the 6th power
Tom [10]
9^2 (9 to the 2nd power) is 81, 9^6 (9 to the 6th power) is 531441.
Then if we multiply 81*531441 you get 43046721.
8 0
3 years ago
I need help wit this ​
neonofarm [45]

Answer:

75

Step-by-step explanation:

\+_+/

5 0
3 years ago
Other questions:
  • Which of the following numbers is not part of the solution to x &gt; 1?
    8·2 answers
  • Is the ordered pair (4, 20) a solution to the equation y = 5x? If yes, is it the only solution?
    9·1 answer
  • Find the regression equation, letting the first variable be the
    13·1 answer
  • Was it evaluated correct?<br>explain your reasoning​
    10·1 answer
  • Answer please I need help!!!
    10·2 answers
  • Which equation shows a valid, practical step in solving?
    13·1 answer
  • as part of a probablity experiment Elliot is to answer 4 multiple choice questions. For each question there are 3 possible answe
    12·1 answer
  • Please help me... due today
    5·2 answers
  • A store has 40 bags of marbles. There are 70 marbles in each bag. How many marbles does the store have?​
    15·1 answer
  • Laat month, andy collected 432 stamps, which was 4 times the number of stamps alva collected. If alva collected 6 times as many
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!