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
fiasKO [112]
3 years ago
9

-1/9 + (-5/9) write in simplest form

Mathematics
2 answers:
Snezhnost [94]3 years ago
6 0

<em>Hope</em><em> </em><em>this</em><em> </em><em>will</em><em> </em><em>help</em><em> </em><em>u</em><em>.</em><em>.</em><em>.</em><em>.</em>

ki77a [65]3 years ago
6 0

Answer:

-\frac{2}{3}

Step-by-step explanation:

-\frac{1}{9} + (-\frac{5}{9} )

Since you have two negative fractions you add them together and put a negative sign in front of the fraction.

1+5=6                                  so you have

-\frac{6}{9}                     Now you have to simplify 6 and 9 are both divisible by 3 so                             divide  both by 3 separately and then put it back in fraction form

-6÷3=-2

9÷3=3                    back in fraction form

-\frac{2}{3}                      You can't simplify any more so -\frac{2}{3} is your answer

You might be interested in
What is the median value of the data set shown on the line plot?
s344n2d4d5 [400]

Answer:

30

Step-by-step explanation:

27, 28, 28, 29, 29, 29, 30, 30, 30, 31, 31, 31, 33, 34

Continuously cross one off from each side and get 30 and 30. The mean of these is 30.

5 0
3 years ago
Read 2 more answers
2.
Oduvanchick [21]

Answer:

38cm taller

Step-by-step explanation:

jack is 178cm tall

the ladder is 280cm tall

jack standing on the ladder is 280cm taller

so 178+280=458

the tree is 420cm tall

458>420

which means that jack is now taller than the tree standing in the ladder

458-420=38

so jack is 38cm taller than the tree standing on the top of the ladder

5 0
3 years ago
What is the sale price on a $50.00 item that is on sale for 25% off?
romanna [79]
$37.5
50×25÷100 give i the money of 25 percent off which is 12.5
Than you do the difference 50-12.5=37.5
3 0
3 years ago
Let f(x) = 5x + 6 and g(x) = -7x - 4. <br> Find f(x) + g(x)
sattari [20]
5x + 6 + (-7x - 4)

5x + 6 - 7x - 4

-2x + 2
4 0
3 years ago
The lifetime of a battery in a certain application is normally distributed with mean μ = 16 hours and standard deviation σ = 2 h
DaniilM [7]

Answer:

Probability that a battery will last more than 19 hours is 0.0668.

Step-by-step explanation:

We are given that the lifetime of a battery in a certain application is normally distributed with mean μ = 16 hours and standard deviation σ = 2 hours.

<em>Let X = lifetime of a battery in a certain application</em>

So, X ~ N(\mu=16,\sigma^{2} =2^{2})

The z-score probability distribution for normal distribution is given by;

               Z = \frac{  X -\mu}{\sigma}  ~ N(0,1)

where, \mu = mean lifetime = 16 hours

            \sigma = standard deviation = 2 hours

The Z-score measures how many standard deviations the measure is away from the mean. After finding the Z-score, we look at the z-score table and find the p-value (area) associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X.

So, the probability that a battery will last more than 19 hours is given by = P(X > 19 hours)

  P(X > 19) = P( \frac{  X -\mu}{\sigma} > \frac{19-16}{2} ) = P(Z > 1.50) = 1 - P(Z \leq 1.50)

                                              = 1 - 0.9332 = 0.0668

<em>Now, in the z table the P(Z </em>\leq<em> x) or P(Z < x) is given. So, the above probability is calculated by looking at the value of x = 1.50 in the z table which has an area of 0.9332.</em>

Hence, the probability that a battery will last more than 19 hours is 0.0668.

5 0
3 years ago
Other questions:
  • A relative frequency table is made from data in a frequency table. Relative Frequency Table: A 4-column table with 3 rows. The f
    13·2 answers
  • The sign of the product of -350 and 89 is
    12·1 answer
  • 50 POINTS <br><br>Help me plzz i need help with this it is due tomorrow
    15·2 answers
  • How to graph y=(x+3)^2+4
    13·1 answer
  • on a map, the distance between Sheila's house and shardae's house is 6.75 inches. according to the scale, 1.5 inches represents
    15·1 answer
  • Jose borrowed $800 from his local credit union for 8 months at 6% simple interest. He agreed to pay the loan by making 8 equal m
    13·1 answer
  • PLEASE HELP!!<br><br> WILL MARK BRAINLIEST!<br><br> What is the measure of arc AB?
    14·1 answer
  • John runs a computer software store. Yesterday he counted 140 people who walked by the store, 63 of whom came into the store. Of
    11·2 answers
  • Evaluate the summation of 3 n plus 2, from n equals 1 to 14. 39 49 340 343.
    7·1 answer
  • 20 POINTS<br><br> Part E<br> How many of the 320 million Americans would you predict wear glasses?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!