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
KatRina [158]
3 years ago
12

Which shows the correct substitution of the values a, b, and c from the equation 1 = -2x + 3x2 + 1 into the quadratic

Mathematics
1 answer:
lidiya [134]3 years ago
4 0

Answer: A

Step-by-step explanation:

The first thing we need to do is to make sure our equation is in standard form. The given equation is not in standard form.

3x²-2x=0

Now that the equation is in standard form, we can find our A, B, C to see which quadratic equation is correct.

A=3

B=-2

C=0

We can automatically eliminate D because the first value is -3 when it is supposed to be -(-2). Also, the denominator is supposed to be 2a. We know that A=3. The denominator should be 2(3), not 2(-2).

Next, we can eliminate B and C. For the 4ac, we know it has to be 4(3)(0) because A=3 and C=0. B and C have given 4(3)(2) and 4(3)(1), respectively. This does not match A=3 and C=0.

Therefore, A is the correct answer.

You might be interested in
Is this correct????????
scoundrel [369]
You're right ^^ if u wanna know why, I can answer it for u :)

*edit* I used the wrong your XD
4 0
3 years ago
Read 2 more answers
What is the equations for f(x)?
Wittaler [7]

f(x) = -8\cdot 4^x


You reflect a function with respect to the x axis by changing its sign.


In fact, if you consider the two alternatives


x \mapsto f(x) and x \mapsto -f(x)


you can see that you're choosing opposite outputs for the same inputs.


In other words, one graph will be made of points like (x,f(x)), the other of points like (x,-f(x))


And the transformation


(x,y) \to (x,-y)


is exactly a reflection with respect to the x axis.

6 0
3 years ago
A king cobra is 4.237 meters long. Round the length tothe nearest meter
Elanso [62]
The nearest meter is 4 meters because the 7 would round the 3 to a 4, but a 4 wouldn't round up the 2. Even if the 4 rounded up the 2 to a 3, it still wouldn't be enough to round the 4 up to a 5. In other words, 4 and below will not round up anything, but a 5 or above will round up anything (as far as basics go).
6 0
3 years ago
Read 2 more answers
What are expressions
algol [13]
A math equation without an equal sign
3 0
3 years ago
Read 2 more answers
Four resistors are connected in series such that their total resistance is 50ohm . If the resistance of resistors is 5 ohm , 10o
Katyanochek1 [597]
<h2>Answer:</h2>

\boxed{R_{4}=20\Omega}

<h2>Step-by-step explanation:</h2>

If resistors are in series, so the current  I is the same in all of them. In this problem we have four resistors. So, we can get a relationship between the Equivalent resistance  of series combination and the four resistors as follows:

R_{eq}=R_{1}+R_{2}+R_{3}+R_{4}

R_{eq} is the total resistance 50\Omega. Moreover:

R_{1}=5\Omega \\ R_{2}=10\Omega \\ R_{3}=15\Omega

Therefore:

50=5+10+15+R_{4} \\ \\ R_{4}=50-(5+10+15) \\ \\ R_{4}=50-30 \\ \\ \boxed{R_{4}=20\Omega}

7 0
3 years ago
Other questions:
  • Evaluate using f(x)= -5x+13, f(-2)=?
    15·2 answers
  • What are the solutions of 3(x-4)(2x-3)=0 check all that apply
    13·2 answers
  • What is the value of y?
    13·2 answers
  • Choose the fragment that best completes the following sentence. Interest charges will not be applied to a credit card when-
    13·2 answers
  • Help with 8 <br> Letter B
    8·1 answer
  • Square root of 1518.55 divided by 19
    6·1 answer
  • Write an equation in slope intercept form for the line that passes through (1,8) and (2,11)
    11·2 answers
  • 3x+5⁰ 2x-25⁰ supplementary angles​
    7·2 answers
  • How do you find the variable for 42x+32
    15·1 answer
  • Please answer. I will give brainliest.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!