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
Alex73 [517]
3 years ago
5

F(x) = 3x² - 6x +5 find x intercepts

Mathematics
1 answer:
8090 [49]3 years ago
6 0

Answer: there aren't any x intercepts.

Step-by-step explanation:

The function doesn't touch the x-axis only the y-axis giving that there aren't any x intercepts. The y intercepts is (0,5).

You might be interested in
The increase in length of an aluminum rod is twice the increase in length of an Invar rod with only a third of the temperature i
cluponka [151]

Answer:

the ratio of lengths of the two rods, Aluminum to Invar is 11.27

Step-by-step explanation:

coefficient of linear expansion of aluminum, \alpha _{Al} = 23 \times 10^{-6} /K

Coefficient of linear expansion of Invar, \alpha _{Iv} = 1.2 \times 10^{-6}/K

Linear thermal expansion is given as;

\Delta L = L_0 \times \alpha\times  \Delta T\\\\where;\\\\L_0 \ is \ the \ original \ length \ of \ the \ metal\\\\\Delta L \ is \ the \ increase \ in \ length

The increase in length of Invar is given as;

\Delta L_{Iv}  = L_0_{Iv} \times \alpha _{Iv}\times  \Delta T_{Iv}

The increase in length of the Aluminum;

\Delta L_{ Al} = L_0_{Al} \times \alpha _{Al} \times \Delta T_{Al}\\\\from \ the\ given \ question, \ the \ relationship \ between \ the  \ rods \ is \ given \ as\\\\ L_0_{Al} \times \alpha _{Al} \times \frac{1}{3} \Delta T_{Iv}= 2( L_0_{Iv} \times \alpha _{Iv} \times \Delta T_{Iv})\\\\ L_0_{Al} \times \alpha _{Al} \times \Delta T_{Iv}= 6( L_0_{Iv} \times \alpha _{Iv} \times \Delta T_{Iv})\\\\ L_0_{Al} \times \alpha _{Al} \times \Delta T_{Iv} = 6L_0_{Iv} \times 6\alpha _{Iv} \times 6 \Delta T_{Iv}\\\\

\frac{L_0_{Al}}{6L_0_{Iv} } = \frac{6\alpha _{Iv} \ \times \ 6 \Delta T_{Iv}}{\alpha _{Al} \ \times \ \Delta T_{Iv}} \\\\\frac{L_0_{Al}}{6L_0_{Iv} } = \frac{6\alpha _{Iv} \ \times \ 6}{\alpha _{Al} \ } \\\\\frac{L_0_{Al}}{L_0_{Iv} } = 6^3(\frac{\alpha _{Iv}  }{\alpha _{Al} } )\\\\\frac{L_0_{Al}}{L_0_{Iv} } = 6^3(\frac{1.2 \times 10^{-6} }{23\times 10^{-6} } )\\\\\frac{L_0_{Al}}{L_0_{Iv} } = 6^3(\frac{1.2}{23} )\\\\\frac{L_0_{Al}}{L_0_{Iv} } = \frac{259.2}{23} \\\\\frac{L_0_{Al}}{L_0_{Iv} } = 11.27

Therefore, the ratio of lengths of the two rods, Aluminum to Invar is 11.27

5 0
3 years ago
Please help me with this math problem (image below)
VashaNatasha [74]

Answer:

Option B.

Step-by-step explanation:

Obvious. <u>Lets explain:</u>

<em>Option A: It's pretty ease to do. You just need 2 triangles to make a parallelogram, and that's that.</em>

<em>Option B: How can you make a rectangle from triangles-???</em>

<em>Option C: You might think I am wrong, but I am right. Get 6 triangles, then plato, you have a whole hexagon!</em>

<em>Option D: You probably already know this...but you just need three triangles.</em>

It's correct on every school thing.

<h2>Option B is your answer!</h2>
6 0
2 years ago
Lilly is placing an order for r bags of rice for her sushi restaurant. The market charges $15.70 per bag of rice. Which equation
Ipatiy [6.2K]
T = 15.70r
time cost (t) = the price of the bag of rice • the number of bags of rice
7 0
2 years ago
James joins Club One which charges a monthly membership of $19.99. In 6 months, will he spend less than $120 in all?
Nadusha1986 [10]

Yes because if you do 19.99 times 6 you get 119.94

5 0
2 years ago
Please Help
Hitman42 [59]

ANSWER

( {y  - 8)}^{2}  =  - 28(x + 5)

EXPLANATION

The given parabola has directrix x=2.

This implies that, the parabola is opens in the direction of the negative x-axis because it must open in a negative direction to the directrix.

The equation of such parabola is of the form:

( {y  - k)}^{2}  = 4p(x - h)

where (h,k)=(-5,8) is the vertex.

|p|  = | - 2 - 5|  = 7

p =  \pm7

But the parabola opens to the left.

p=-7

The equation now becomes

( {y  - 8)}^{2}  = 4( - 7)(x   -  - 5)

( {y  - 8)}^{2}  =  - 28(x + 5)

4 0
3 years ago
Other questions:
  • I) 2a (a - 1) - 2 + 1​
    13·1 answer
  • Simplify 46√+26√−6Simplify. <br><br> 46√+26√−6√√
    7·1 answer
  • Bill cut out 6 squares and 8 circles.He divided the cutouts into groups so that the same number of squares and circles were in e
    6·1 answer
  • ∠1 and ∠2 are
    5·1 answer
  • There were 16 dogs in line for the dog show parade. Popsie the poodle is the 12th dog in line. How many dogs are ahead of her? H
    15·2 answers
  • Which measurements, rounded to the nearest tenths of a yard, are the unknown lengths in the figure shown? (Select all that apply
    10·1 answer
  • If r is an integer greater than 1, what is the value of (-1)^r+1 if:<br><br> r is an even integer
    12·2 answers
  • Will give brainliest answer
    13·1 answer
  • How many solutions does the system have? Explain. −3x + 6y = 10 −3x + 6y = −4
    10·1 answer
  • In a certain school 70% of the students in first-year chemistry have had algebra. If there are 290 students in first-year chemis
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!