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
Murljashka [212]
3 years ago
15

Helpppppp fasttttttttt pleaseeeeeee

Mathematics
2 answers:
Rom4ik [11]3 years ago
8 0

Answer:

commutative

Step-by-step explanation:

son4ous [18]3 years ago
5 0

Answer:

b

Step-by-step explanation:

Commutaive

You might be interested in
Find slope that pass through the points (3,16)and (8,18
photoshop1234 [79]
2/5 ...........................
7 0
3 years ago
Read 2 more answers
A quadratic equation is shown below:
Valentin [98]
Part A)

The given equation is:

25 x^{2} +10x+1=0

The radicand or discriminant(d) of the equation will be:

d=(10)^{2}-4(25)(1) \\  \\ 
d=100-100 \\  \\ 
d=0

Since the discriminant is equal to 0, the given quadratic equation has only 1 root. In other words we can say the the given equation is a perfect square. 


Part B)

The given equation is:

4 x^{2} -4x+1=0

We can solve this expression by factorization. Factors of middle term are to be made in such a way that their product equals the product of first and third term and sum is equal to the middle term i.e. product should be 4x² and sum should be -4x.
So the two such terms are -2x and -2x. Using the factors and simplifying the equation by taking common we get:

4 x^{2} -2x-2x+1=0 \\  \\ 
2x(2x-1)-1(2x-1)=0 \\  \\ 
(2x-1)(2x-1)=0 \\  \\ 
(2x-1) ^{2}=0 \\  \\ 
2x-1=0  \\  \\ 
x= \frac{1}{2}
4 0
3 years ago
Julia has 14 pounds of nuts .there are 16 ounces in one pound. how mant ounces of nuts does she have
SSSSS [86.1K]
There are 14 pounds of nuts, and each are 16 ounces.

14*16 = ?

14*16 = 224

Final answer: She has a total of 224 ounces of nuts.
8 0
3 years ago
Read 2 more answers
Scores on a university exam are Normally distributed with a mean of 78 and a standard deviation of 8. The professor teaching the
mafiozo [28]

Answer:

Porcentage of students score below 62 is close to 0,08%

Step-by-step explanation:

The rule

68-95-99.7

establishes:

The intervals:

[ μ₀ - 0,5σ ,  μ₀ + 0,5σ] contains 68.3 % of all the values of the population

[ μ₀ - σ ,  μ₀ + σ]   contains 95.4 % of all the values of the population

[ μ₀ - 1,5σ ,  μ₀ + 1,5σ] contains 99.7 % of all the values of the population

In our case such intervals become

[ μ₀ - 0,5σ ,  μ₀ + 0,5σ]   ⇒  [ 78 - (0,5)*8 , 78 + (0,5)*8 ]  ⇒[ 74 , 82]

[ μ₀ - σ ,  μ₀ + σ]  ⇒ [ 78 - 8 , 78 +8 ]   ⇒  [ 70 , 86 ]

[ μ₀ - 1,5σ ,  μ₀ + 1,5 σ]  ⇒ [ 78 - 12 , 78 + 12 ]  ⇒ [ 66 , 90 ]

Therefore the last interval

[ μ₀ - 1,5σ ,  μ₀ + 1,5 σ]    ⇒  [ 66 , 90 ]

has as lower limit 66 and contains 99.7 % of population, according to that the porcentage of students score below 62 is very small, minor than 0,15 %

100 - 99,7  = 0,3 %

Only 0,3 % of population is out of   μ₀ ± 1,5 σ, and by symmetry 0,3 /2 = 0,15 % is below the lower limit, 62 is even far from 66 so we can estimate, that the porcentage of students score below 62 is under 0,08 %

6 0
3 years ago
Help d-7 < 12; d = 19
kompoz [17]

Answer:

12 ≮  12

False

Step-by-step explanation:

19 − 7 < 12

12 ≮  12 (<--- line through the less than sign)

False

(I'm not 100% sure)

3 0
1 year ago
Read 2 more answers
Other questions:
  • Ava deposited $14 in a savings account that earns 2.7% simple interest. What would the graph look like?
    8·1 answer
  • Give an example of a quadratic equation with 2 + 3i as one of its solutions
    10·1 answer
  • Help me plzz with 18-22 thanks
    6·1 answer
  • Question 9 A shirt was originally priced at $50. The store is having a 45% off sale. How much will you pay for the shirt after t
    13·1 answer
  • 3х – 12 = 5х – 31<br> How do I solve this
    7·1 answer
  • Jonna is filling bags with candy. Each bag has 5 pieces of candy. Joanna wants 2/5 of the candy in each bag to be chocolate bars
    5·2 answers
  • Can someone give me the reason why 2 is congruent to 11
    10·2 answers
  • How do I simplify 7+4(2-6)
    14·2 answers
  • Can anyone help me solve this
    10·1 answer
  • JEN PURCHASED THE ITEM SHOWN IN THE TABLE IN THE CITY IN THE SALES TAX RATE IS 7.15 IN ANOTHER CITY THE SALES TAX RATE IS 6.35 H
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!