PLEASE SOMEONE HELP ME PLEASE HELPPPPP!!!!!

Mathematics

1 answer:

inn [45]3 years ago

6 0

What is the qusyionion

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C(x)=2x^2-4x-3 find c(-4)

KiRa [710]

Answer:

Step-by-step explanation:

c(x)=2x^2-4x-3

Let x= -4

c(-4)=2(-4)^2-4(-4)-3

= 2(16) +16-3

=32+16-3

4 0

3 years ago

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I am going to bye a three bags of plums and the cost of the plums are $4000 but I only have $300 how many more money do I need

Delicious77 [7]

well...

if all three bags cost $4,000 then you'll need $3,700.

but if one bag costs $4,000 then that'll equal to $12,000 which then you'll need $11,700.

<u>i might've misundestood your question so please let me know if this is correct!</u>

3 0

3 years ago

What is the simplified version of this expression?<br>-5 - (-2)4

bagirrra123 [75]

The simplest version of the expression is either -5+8 or 3 idrk

8 0

3 years ago

Someone plz help I need this answer quick !

Ivahew [28]

The answer is 5 months, with the cost of $85. You can find this answer by first writing the charges as 12x + 25 and 10x + 35. Then, you set them equal to each other and solve to find x, which is the number of months.
12x + 25 = 10x + 35
- 10x
2x + 25 = 35
- 25
2x = 10
÷ 2
x = 5

Now that we know what x is, we can substitute it in and get 10(5) + 35 = 50 + 35 = 85.
I hope this helps!

8 0

4 years ago

Which operations is the following set closed under: {... , -3, -1, 1, 3, ...}?

Ganezh [65]

Not addition, since $-1+1=0$ and 0 doesn't belong to the set.

Not subtraction, since $1-1=0$ .

It is closed under multiplication. The set appears to contain all non-zero multiples of 3.

Not division, since dividing some of the numbers results in rationals which do not belong to the set.

What other operations are you supposed to consider?

5 0

3 years ago

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