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
Phantasy [73]
3 years ago
5

NEED HELP ASAP! Will give brainliest!

Mathematics
1 answer:
AlladinOne [14]3 years ago
3 0

Answer:A B and D

Step-by-step explanation:

USA TEST PREP.

You might be interested in
Which of the following are identities?
podryga [215]

Answer:

A. III only

Step-by-step explanation:

In mathematics, an identity is one of the characteristics of algebraic expressions.

Given variable a and b in an algebraic expression, an identity is defined as an equality that remains the same no matter the values that we choose for either variable a or b.

Identity in mathematics makes it very easy to solve algebraic expressions. The two sides of an identity in an algebra can easily be exchanged for each other.

In the above question, we are given 3 Options.

I) 3(5 + 2x) = 15 + 6x

II) y = x + 3

III) (x² - y²) = (x + y) (x - y)

Option I) 3(5 + 2x) = 15 + 6x

Is showing distributive property in mathematics.

Distributive property is :

a(b + c) = ab + ac

Option I is not an identity , therefore it is wrong.

Option II) y = x + 3 is just an algebraic expression.

Only Option III is an identity. This is because it follows the rule of

(a² - b²) = (a + b) (a - b)

We can prove and confirm this be solving the algebraic expression

(x + y) (x - y)

We expand the bracket

x² - xy +xy - y²

x² - y²

Therefore, option A is the correct option.

6 0
3 years ago
Read 2 more answers
When applying for a loan, you should _____.
ivanzaharov [21]
You should also have a little money saved aside so that you can pay them the money you saved and then work for the rest of the money you need to pay off

sorry if im incorrect
5 0
3 years ago
What is 2 2/5 times 3 1/4
Naddik [55]

Answer:

7 4/5

Step-by-step explanation:

2 2/5 = 12/5

3 1/4 =  13/4

12/5 x 13/4 = 156/20 = 7 16/20

7 16/20 / 4 = 7 4/5

5 0
3 years ago
Read 2 more answers
Evaluate using the order of operation 3/4+5/6÷2/3
Novosadov [1.4K]
3/4+5/6 divided by 2/3 is 8/4 or 2
Do 5/6 divided by 2/3 first to get 5/4
then use 5/4 to +3/4 and the answer is 8/4 or 2
5 0
3 years ago
7. In a state lottery, a player must choose 8 of the numbers from 1 to 40. The lottery commission then performs an experiment th
Vlad1618 [11]

Answer:a) P(8 of the players numbers are drawn)=1.3×10^-8

b) P(7 of the players number are drrawn)=3.33×10^-c) P(at least 6 of the players number were drawn)=1.84×10^-4

Step-by-step explanation:

Players has 8 combinations of numbers from 1-40. The outcome S contains all the combinations of 8 out of 40

a) P(8 of the players numbers are drawn)= 1/40/8= 1.3×10^-8

There are one in hundred million chances that the draw numbers are precisely the chosen ones.

b) Number of ways of drawing 78 selected numbers from 1-40=8×(40-7)

8×32

P(7 of the players number are drawn)=8×32/40 =3.33×10^-6.

There are approximately 300,000 chances that 7 of the players numbers are chosen

c) P(at least 6 players numbers are drawn)= 32/2×(8/6) ways to draw.

P(at least 6 players numbers are drawn)=P(all 8 chosen are drawn)+P(7 players numbers drawn)+P(6 chosen are drawn) = 1+ 8 x32/40/8 +[8\6 ×32/2]

P(at least 6 players numbers are drawn) = 1.84×10^-4.

There are approximately 5400chances that at least6 of the numbers drawn are chosen by the player.

5 0
3 years ago
Other questions:
  • find two consecutive intergers who sum is equal to the difference of three times the larger and two times the smaller
    13·1 answer
  • Polynomials are written with the exponents of the terms in _____ order.
    10·2 answers
  • Record the data on a line plot 20,17,20,17,18,17,20,18,16
    14·2 answers
  • Which of the following is the graph of f(x) = 3 sin (2x)? (2 points)
    15·1 answer
  • If you get this right I will mark you as a brainliest
    9·1 answer
  • What is the volume of a hemisphere with a diameter of 45.7 m, rounded to the nearest tenth of a cubic meter?
    10·1 answer
  • You and your friend are practicing for a rowing competition and want to know how far it is to an island in the Indian River Lago
    7·1 answer
  • Determine the value of x in the diagram. ​
    10·1 answer
  • PLS HELP
    9·1 answer
  • Helppppppppppppppppppp​
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!