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
cestrela7 [59]
2 years ago
9

17.

Mathematics
2 answers:
Hitman42 [59]2 years ago
8 0
<h3>Solution:</h3>

Using formula (a-b)^2 = a^2-2ab+b^2

4x^{2}  - 12x + k \\  =  > (2x) ^{2}  - 2(2x)(3) +  {3}^{2}  \\  \\  =  >  {(2x)}^{2}  - 2(2x)(3) + 9

<h3>Answer:</h3>

k = 9

vagabundo [1.1K]2 years ago
4 0

Answer:

Using formula (a-b)^2 = a^2-2ab+b^2

4x 2 −12x+k

=>(2x) 2 −2(2x)(3)+3 2

=>(2x) 2 −2(2x)(3)+9

=> k = 9

You might be interested in
N two years, Linda will be half as old as her mother. Her mother is 38 years old now.
Ksenya-84 [330]
I'm not sure about the formula.
But since 38/2=19
19-2=17
Linda is 17 years old.
a possible formula could be:
L=38/2-2
3 0
3 years ago
If diana spends 25 minutes running at the gym how many minutes does she spend lifting weight
eimsori [14]

Answer:

0

Step-by-step explanation:

The question doesn’t say that she lifted weights

6 0
3 years ago
Read 2 more answers
Joe has 45 minutes before he has to go to soccer practice he spends 20 minuets eating a snack and the rest of the time doing his
Alexeev081 [22]

Answer:

45=20+(x)

Step-by-step explanation:


6 0
3 years ago
Read 2 more answers
Sorry if you can’t read it but help! If you can
drek231 [11]

Answer:

I believe that it is D

Step-by-step explanation:

A is wrong...

B is wrong (I believe)...

C is wrong...

So D is the only answer choice left.

3 0
3 years ago
Read 2 more answers
Sierra sawed 10 1/2 inches off the end of a board. the remaining board was 37 1/2 inches long. how long was the boared that sier
ivann1987 [24]
37 1/2 +10 1/2 = 48 inches
48 inches is your answer ;)

6 0
3 years ago
Other questions:
  • I need help please look at the picture thx
    12·1 answer
  • On a coordinate plane, a line goes through points (negative 4, 0) and (0, 4.5).
    9·1 answer
  • Write and solve a problem for 42 divided 7 in which the quotient is the number of groups
    15·1 answer
  • Legalize Marijuana, Part II. As discussed in Exercise 6.12, the 2010 General Social Survey reported a sample where about 48% of
    12·1 answer
  • Jackie and Diane went to dinner at a nice restaurant and ordered seafood and salads. The following is their check:
    11·1 answer
  • Gary is studying the prevalence of regional dialects. He surveyed 351 people in a region and asked what words they used for cert
    5·1 answer
  • . Formulate the hypotheses that can be used to determine whether the sample data support the hypothesis that students show a hig
    10·1 answer
  • Help please , true or false question
    12·2 answers
  • The highest common factor of 12, 24, and 36<br>is<br>(a) 14<br>(b) 12<br>(c) 6<br>(d) 1​
    12·2 answers
  • Find the measure of angle 2 if the measure of angle 8 is 40<br> degrees.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!