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
the temperature in Nico's town was -2.9 f at noon . the temperature increased at a steady rate of 1.3 f per hour until 6:00p.m.
kotykmax [81]
Temperature at noon: Tn=-2.9 f
Rate: r=+1.3 f/h
Total decreased: d=-3.7 f 
Temperature at midnight: Tm=?

Tm=Tn+r(6 p.m.-12 m)+d
Tm=-2.9 f+(1.3 f/h)(18 h-12 h)+(-3.7 f)
Tm=-2.9 f+(1.3 f/h)(6 h)-3.7 f
Tm=-2.9 f+7.8 f-3.7 f
Tm=1.2 f

Answer: T<span>he temperature at midnight was 1.2 f</span>
6 0
3 years ago
Evaluate 6^-2<br><br> a) -1/36<br> b)4<br> c) 1/36<br> d)-12
inessss [21]

{6}^{ - 2}  \\  \frac{1}{ {6}^{2} }  \\  \frac{1}{36}

The answer is C

4 0
2 years ago
Read 2 more answers
Find the volume of this figure to the nearest whole number. Use 3.14 for pi.
sukhopar [10]

Answer:

≈ 1800 mm³

Step-by-step explanation:

Volume of the figure above will be given by the formula

Cross section area × length

In this case;

Cross section area will be;

Area of the square + area of the two semi circles

12× 12 + 2(3.14 × 6 ×6/2)

= 144 + 3.14 ×36

= 257.04 mm²

Volume = Cross section area × Length

             = 257.04 × 7

             = 1799.28 mm³

           <u> ≈ 1800 mm³</u>

3 0
3 years ago
What is the maximum value of the picture below?
Cloud [144]

Answer:

y = 4

Step-by-step explanation:

The maximum value occurs at the vertex

vertex = (2, 4 )

when x = 2 the maximum value is y = 4

4 0
2 years ago
Draw to explain how you would make a ten to find 5+8.
erica [24]
Since 2+8 =10 you would just have 3 left to add so it would be 10+3=13
4 0
3 years ago
Other questions:
  • How do you solve this two-step equation? -8=x+11/-2
    14·1 answer
  • What is G (f) = 3k (2) -22 k=4 I can't get it
    7·2 answers
  • Need help on 6. 7. 8. 9. 10.
    14·1 answer
  • I make $50 each month for allowance . 40%of this goes toward lunch . How much do I spend on lunch?
    11·2 answers
  • What’s the exact radius of a circle with the circumference of 42 meters
    13·1 answer
  • What is the domain of the function shown in this graph?
    9·1 answer
  • Find the value of y.<br> Please help :(
    5·1 answer
  • Determine the slope for the line that passes through the points given by the table of values.
    12·1 answer
  • Can someone help me with these? I'm a bit confused.
    6·1 answer
  • I shall give the right answer brainliest
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!