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
Ludmilka [50]
3 years ago
9

1/3 + a + 5/4. what is A

Mathematics
1 answer:
USPshnik [31]3 years ago
6 0

Answer:

a = -1.58

Step-by-step explanation:

1/3 +a+5/4 =0

1/3+5/4= -a

4+15/12 = -a

19/12 = -a

1.58= -a

1.58/-1 = -a/-1

-1.58 = a

You might be interested in
Nathan is jogging on a circular trail in a state park. The diameter of the trail is 650 meters. What approximate distance ( circ
erica [24]
If using the radius, you would multiply the radius by 2*pi, to calculate the circumference, which should be the same as the answer i got.

3 0
3 years ago
Consider a binomial distribution of 200 trials with expected value 80 and standard deviation of about 6.9. Use the criterion tha
mote1985 [20]

Answer:

The correct answer is option 'a' : 120 is more than 2.5 standard deviations above the expected value.

Step-by-step explanation:

For an exponential distribution we have

The expected value μ = 80

No of trails n = 200

Thus we have

p=\frac{80}{200}=0.4

The deviation is related to expected value and probability as

\sigma =\sqrt{np(1-p)}\\\\\therefore \sigma =\sqrt{200\cdot 0.4\cdot (1-0.4)}=6.9

Thus the values between the given deviation is

x_{1}=80-2.5\times 6.9=62.75\\\\x_{2}=80+6.9\times 2.5=97.25

Now since 120 successes are out of the range of [62.75,97.25] thus 120 is more than the expected value.

5 0
3 years ago
One tray holds eight sandwiches if there are 30 sandwiches in all, how many trays are needed?
nika2105 [10]
30/8=3.75
So, you need 4 trays, since you can't have 75% of a tray.
Hope this helps
3 0
3 years ago
Read 2 more answers
The local bakery uses 1.75 cups of flour in each batch of cookies. The bakery used 5.25 cups of flour this morning. If there are
Firdavs [7]

Answer: 180 cookies


Step-by-step explanation: If 1.75 cups of flour is required to make a batch and the bakery used 5.25, the bakery made 3 batches, since 1.75(3) is 5.25. One dozen is 12 cookies, and there are 5 dozen cookies in each batch. If there are 3 batches, then there are 15 dozens of cookies. 15(12) is 180.


5 0
3 years ago
Jack broke apart 5×216 as (5×200) (5×16) to multiply mentally. What strategy did Jack use?
PSYCHO15rus [73]
Breaking the it down- simplifying
5 0
3 years ago
Other questions:
  • What are the values of a, b, and c in the quadratic equation 0 = 5x – 4x2 – 2?
    10·1 answer
  • What the answer to this equation<br>-3+5+2y-7y please show worj
    6·2 answers
  • Zoe's bank offers 2% simple interest on Simple Savings accounts. If she deposits her $500 of graduation money into a Simple Savi
    9·1 answer
  • Explain how to find the sum of the interior angles for any polygon in relation to the number of sides.Explain how to find the su
    8·2 answers
  • Bob gets 3n+2=20 as the final row of his magic number puzzle table. what was his starting number?
    14·1 answer
  • Write 98 as the productof prime fators. Write the prime factors in ascending order. This is a mathswatch and I've been, stuck fo
    11·2 answers
  • Enter the number in scientific notation.<br> 4,470,000 =
    5·2 answers
  • (5.23x + 3.76) − (3.67x − 6.39)
    9·1 answer
  • What is the perimeter, in feet, a rectangle whose length is twice its width and whose width is 8 feet?
    10·1 answer
  • You work for a company that makes tiles for patios. A customer sent you the following picture of his patio. He said the patio is
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!