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
Alexandra [31]
3 years ago
9

Given the function, y=3x^2+5x+1 determine the discriminant A.-2 B.-11 C. 27 D. 13

Mathematics
1 answer:
allsm [11]3 years ago
3 0

Answer:

13

Step-by-step explanation:

y=3 {x}^{2} +5x+1

The discriminant of a quadratic is the expression inside the radical of the quadratic formula.

{b}^{2}  - 4(ac)

Substitute in the values of a, b, and c.

{5}^{2}  - 4(3 \times 1)

Evaluate the result to find the discriminant.

Simplify each term.

Raise 5 to the power of 2.

25 - 4(3 \times 1)

Multiply 3 by 1.

25 - 4 \times 3

Multiply −4 by 3.

25−12

Subtract 12 from 25.

13

<h3>Hope it is helpful...</h3>
You might be interested in
A line segment always contains a line
serious [3.7K]
In geometry, a line segment is a part of a line that is bounded by two distinct end points, and contains every point on the line between its endpoints
5 0
3 years ago
Between which two natural numbers is 37 ?
Andru [333]

Answer:

B

Step-by-step explanation:

The answer is b.

6 0
3 years ago
How much will the taxi driver earn if he takes one passenger 4.8 miles and another passenger 7.3 miles? Explain your process.
Bezzdna [24]

Answer:

35.225 I believe

Step-by-step explanation:

You can always check on Slader.

4 0
3 years ago
The price of jeans was reduced $6 per week for 7 weeks. By how much did the price of the jeans change over 7 weeks?
Nimfa-mama [501]
Just multiply 6 by 7 since the price is reduced $6 per week.

$6.00 × 7 = $42.00

Your final answer is $42


I hope this helped!!
5 0
3 years ago
Find the vectors T, N, and B at the given point. r(t) = &lt; t^2, 2/3t^3, t &gt;, (1, 2/3 ,1)
maxonik [38]

Answer with Step-by-step explanation:

We are given that

r(t)=< t^2,\frac{2}{3}t^3,t >

We have to find T,N and B at the given point t > (1,2/3,1)

r'(t)=

\mid r'(t) \mid=\sqrt{(2t)^2+(2t^2)^2+1}=\sqrt{(2t^2+1)^2}=2t^2+1

T(t)=\frac{r'(t)}{\mid r'(t)\mid}=\frac{}{2t^2+1}

Now, substitute t=1

T(1)=\frac{}{2+1}=\frac{1}{3}

T'(t)=\frac{-4t}{(2t^2+1)^2} +\frac{1}{2t^2+1}

T'(1)=-\frac{4}{9}+\frac{1}{3}

T'(1)=\frac{1}{9}=

\mid T'(1)\mid=\sqrt{(\frac{-2}{9})^2+(\frac{4}{9})^2+(\frac{-4}{9})^2}=\sqrt{\frac{36}{81}}=\frac{2}{3}

N(1)=\frac{T'(1)}{\mid T'(1)\mid}

N(1)=\frac{}{\frac{2}{3}}=

N(1)=

B(1)=T(1)\times N(1)

B(1)=\begin{vmatrix}i&j&k\\\frac{2}{3}&\frac{2}{3}&\frac{1}{3}\\\frac{-1}{3}&\frac{2}{3}&\frac{-2}{3}\end{vmatrix}

B(1)=i(\frac{-4}{9}-\frac{2}{9})-j(\frac{-4}{9}+\frac{1}{3})+k(\frac{4}{9}+\frac{2}{9})

B(1)=-\frac{2}{3}i+\frac{1}{3}j+\frac{2}{3}k

B(1)=\frac{1}{3}

5 0
3 years ago
Other questions:
  • Twenty billion, one million thirty thousand and one as a number
    12·2 answers
  • 7 friends have a similar cell phone plans. The price of each plan is $x. 3 of 7 friends pay an extra $4 per month for unlimited
    12·1 answer
  • Factor completely. wait for photo
    6·1 answer
  • What is the square root of -1?
    6·1 answer
  • Select the correct answer from each drop-down menuShape I is similar to shape II
    13·2 answers
  • HELP HELP HELP HELP HELP HELP HELP HELP HELP write a brief summer about inequalities on a number line .
    7·1 answer
  • Please help asap!!! Will give brainleist for the right answer
    13·1 answer
  • A clothing store marked all of their summer clothing down 50%. A sign in the store indicates that an additional 20% is to be tak
    10·2 answers
  • Help meeeeeee!!!!!!!!!!!!!!!!!!!!!
    14·1 answer
  • I need help plz answer fast
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!