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
Cerrena [4.2K]
3 years ago
8

(-3x)²-(3x-2)²-6*(2x-1.5)

Mathematics
1 answer:
Ilya [14]3 years ago
4 0
Without the instructions, I can only assume that you are to "expand the given expression."

Following order of operations rules requires that (3x-2)^2 and -6(2x-1.5) be evaluated first.

(3x-2)^2 = 9x^2 - 12x + 4   and    -6(2x-1.5) = -12x + 9

Then we have 9x^2 - (9x^2 - 12x + 4) -12x + 9

the 9x^2 terms cancel, leaving  us with 12x - 4 - 12x + 9 = 5 (answer)

You might be interested in
An urn contains 12 balls, of which 4 are white.
wel

Answer:

a) \frac{1}{3}

b) \frac{4}{12}\,,\,\frac{4}{11}\,,\,\frac{4}{10}\,,...

Step-by-step explanation:

Number of balls in the urn = 12

Number of white balls in the urn = 4

So, number of balls which are not white = 12 - 4 = 8

We know that probability = No. of outcomes/Total number of outcomes

Let A_i\,,\,B_i\,,\,C_i denotes the event of getting white ball by A, B and C

a) each ball is replaced after being drawn.

Probability = Number of white balls/Total number of balls

Solution: P(A_i)=P(B_i)=P(C_i)=\frac{4}{12}=\frac{1}{3}

b)the balls that are withdrawn are not replaced.

Solution:

If A wins: P(A_1)=\frac{4}{12}=\frac{1}{3}

If A lost and B wins: P\left ( B_1|A_1^{c} \right )=\frac{4}{11}

If A and B lost and C wins: P\left ( C_1|A_1^{c}\,B_1^{c} \right )=\frac{4}{10}

and so on....

4 0
3 years ago
3(2x - 1) + 7 = -44 solve for x
Jet001 [13]

Answer:

I love algebra anyways

The ans is in the picture with the  steps how i got it

(hope this helps can i plz have brainlist :D hehe)

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
What’s half of 2 1/2 as a fraction?
aliina [53]

Answer:

5/4

Step-by-step explanation:

2 1/2=5/2

(5/2)(1/2)=5/4

8 0
3 years ago
Pls help me! I will mark brainliest if you are correct
Aleksandr [31]

Answer:

I' would say A but C could be a possibility.

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
Patrick buys 12 bunches of bananas for $9 what will he pay for 8 bunches of bananas
larisa [96]
12b.......9\$ \\ 8b.........x \\\\ x=\frac{8*9}{12}=\frac{72}{12} \\\\ \boxed{x=5\$}
5 0
3 years ago
Other questions:
  • The Bureau of Labor Statistics (BLS) is the main fact-finding agency of the US government in the fields of labor economics and s
    9·1 answer
  • A number, one-third of that number , and one-fourth of that number are added. The result is 19 what is the original number
    11·2 answers
  • Two different lines are parallel if their slopes are____.
    9·1 answer
  • 1. Determine the zeros of f(x) = x3 – 3x2 – 16x + 48? Somebody explain it please?:/
    7·1 answer
  • Rewrite the quadratic function in vertex form.<br> Y=3x^2-12x+4
    9·1 answer
  • add 7. double the result. subtract 8. divide by 2. su tract the orginial selected number 1st nuber is 3 second number is 4 the t
    8·1 answer
  • Compute the following:
    5·2 answers
  • PLEASEEEEEEEEEEE HELPPPPPPPPPPPPPPPPP MEEEEEEEEEEEEEEEEEEEEEEEE
    10·1 answer
  • The figure shows how the yard lines on a football field are numbered. The goal lines are labeled G. A referee was standing on a
    13·1 answer
  • For every 3 dogs Carol has, she keeps 12 treats. Which is the correct rate?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!