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Aleonysh [2.5K]
3 years ago
8

Jimmy accidentally wrote 1500 for an answer on his test, but the answer was supposed to be -1500. He got it wrong, but told his

teacher "I was close!" What do you think of this?
Mathematics
2 answers:
BigorU [14]3 years ago
4 0

Answer: I am judging this answer off my own experiences. If you forget or did accidentally doesn’t matter to the teacher because he/she would most likely take it as an excuse.

Step-by-step explanation:

Evgen [1.6K]3 years ago
3 0

Answer:

I Dont Know Okrr

Step-by-step explanation:

You might be interested in
Hi please this is urgent. Please write a detailed explanation of the error in this equation!!! Tysm in advance
Degger [83]

Answer:

The second and third line are wrong

Step-by-step explanation:

(4x³ +4x²-8x) -(8x²-16x+4)

= 4x³ +4x²-8x - 8x²+ 16x -4  

= 4x³ +4x²- 8x²-8x+ 16x -4

= 4x³ -4x²+ 8x -4

In the second line:

it has to be +16x because - times - is +

it is like -1*(8x²-16x+4)

In the third line:

you can only add or subtract the xs with the same exponentation, so

4x²- 8x² and -8x+ 16x

4x²- 8x²= -4x² not +12x²

4 0
3 years ago
The power generated by an electrical circuit (in watts) as a function of its current ccc (in amperes) is modeled by: P(c)=-12c^2
g100num [7]

Answer:

5 amperes will produce the maximum power of 300 watts.

Step-by-step explanation:

The general form of a quadratic function presents the function in the form

f(x)=ax^2+bx+c

The vertex of a quadratic function is the highest or lowest point, also known as the maximum or minimum of a quadratic function.

We can define the vertex by doing the following:

  • Identify a, b, and c
  • Find, the x-coordinate of the vertex, by substituting a and b into

x-coordinate =-\frac{b}{2a}

  • Find, the y-coordinate of the vertex, by evaluating

y-coordinate =f(x-coordinate )=f(-\frac{b}{2a} )

We know that the power generated by an electrical circuit is modeled by

P(c)=-12c^{2}+120c

This function is a quadratic function.

To find the current that produce the maximum power you must

  • Identify a and b

a = -12 and b = 120

  • Find, the maximum current of the vertex, by substituting a and b into

maximum-current =-\frac{b}{2a}

maximum-current =-\frac{120}{2(-12)}\\\\maximum-current = 5

  • Find, the maximum-power, by evaluating

maximum-power =P(maximum-current)=P(-\frac{b}{2a} )

P(5)=-12(5)^{2}+120(5)=300

5 amperes will produce the maximum power of 300 watts.

We can check our work with the graph of the function P(c)=-12c^{2}+120c and see that the maximum is (5, 300).

5 0
4 years ago
Need an answer as soon as possible thank you :}
Feliz [49]

Answer:

5 b

Step-by-step explanation:

5 0
3 years ago
Find the area of the trapozoid base=36mm by 15mm by 14mm
trasher [3.6K]

Answer:

<u>Hey there the correct to this is C. 750mm Squared.</u>

Step-by-step explanation:

All you really need to do is Add them and you times it then you get your answer from there.

6 0
3 years ago
PLEASE HELP ASAP FAST ASAP
snow_lady [41]

Answer:

mike did i think im super sooooo sorry if im wrong

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
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