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
Alex777 [14]
3 years ago
5

Simplify the expressions and find the value:

Mathematics
1 answer:
Dahasolnce [82]3 years ago
3 0

Answer:

x(x−3)+2=x.x−3x+2 \\ =x2−3x+2 \\F or x=1 \\ putting \:  x=1  \: in  \: expression \\ x2−3x+2=(1)2−3(1)+2 \\ =1−3+2 \\ =3−3 \\ =0

Solve  \: 3y(2y−7)−3(y−4)−63 for y=−2 \\ First \:  simplify \:  it, \\ =6y2−21y−3y+12−63 \\ =6y2−24y−51 \\ Put \:  y=−2 \: =6(−2)2−24(−2)−51  \\  =6×4+48−51 \: 6×4+48−51 \\  24+48−51 \\ =21

You might be interested in
Please help thank you :)
Snezhnost [94]

Hello there! the answer is A, or There 11 players on the team.

Explanation:

It is A because if you add together all the players, you get 11. (1) 10 year old, (3) 11 year olds, (2) 13 year olds, (1) 14 year old, (4) 15 year olds (1 + 3 + 2 + 1 + 4 = 11)

It is not B because there are three 11 year olds and two thirteen year olds

It is not C because there are players who are 11, 13, 14 and 15.

It is not D because there are 3 players that are 11 and 4 players that are 15.

6 0
4 years ago
Read 2 more answers
6÷0.9 help plzzzzzzzzzzzzzzzzzzz
Rus_ich [418]

6 / .9 *10/10

60/9

9 goes into 60 6 times with 6 left over

6 6/9

6 2/3

8 0
4 years ago
Read 2 more answers
Find the first, fourth, and eighth terms of the sequence. A(n) = –5 • 3n–1 please help me
Korvikt [17]

Answer:

First term: -10

Fourth term: -55

Eighth term: -115

Step-by-step explanation:

I am assuming the means -5(3n-1). To find the first term, plug in 1. You will get -5(3*1-1) or -5*2 or -10.

To find the fourth term, plug in 4. You will get -5(3*4-1) or -5*11 or -55.

To find the eighth term, plug in 8. You will get -5(3*8-1) or -5*23 or -115.

So the answers are -10, -55, and -115.

6 0
4 years ago
Read 2 more answers
explain how the digit in the hundredths place influence the rounding of a decimal to the nearest tenth.
Neko [114]
If the hundreth digit is equal to or larger than 5, increase the tenths digit by 1 and get rid of the hundreths digit altogether.
5 0
3 years ago
Find sin(a) in the triangle? <br> A.)12/35<br> B.)12/37<br> C.)35/12<br> D.)35/37
Svet_ta [14]

Answer:

12/37

Step-by-step explanation:

sin alpha = opposite side/ hypotenuse

sin alpha = 12/37

8 0
4 years ago
Other questions:
  • Simplify square root of 2 multiplied by the cube root of 2.
    7·1 answer
  • What is the value of b? Round you answer to the nearest tenth
    12·1 answer
  • Which expression is equivalent to 'the third power of (7 + 4) I neeeed help
    8·1 answer
  • Y = x^2 undergoes a horizontal stretch by a factor of 1/3 , then a shift up of 4 units.
    12·1 answer
  • HELP ME!!!!!!!!!!!!! WILL GIVE 15 POINTS FOR CORRECT ANSWER!!!!!!!!!!!!!!!!!!
    7·2 answers
  • Is x+2=-5(y+3)^2 the equation for a line?
    14·1 answer
  • riley larue ran a 100 yard dash at a speed of 56.8 feet per second on Oct. 5, 2009. Convert his speed to miles per hour
    6·1 answer
  • When a number is increased by 8.5%, the result is 53. What is the original number to the nearest tenth?
    12·1 answer
  • Can somone pls help me
    9·2 answers
  • What is the solution of log subcript 2 (3x-7)=3
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!