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pshichka [43]
3 years ago
8

Evaluate f(−3) for f(x)=2x2−x+5.

Mathematics
1 answer:
Natasha2012 [34]3 years ago
7 0

Answer: -4

Step-by-step explanation:

2(-3)*2-(-3)+5= -4

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5. Algebra Write an expression you can
AveGali [126]

Answer:

y=x^3

Step-by-step explanation:

I don't know y sha

6 0
2 years ago
Theorem: the sum of any two even integers equals 4k for some integer k. "proof: suppose m and n are any two even integers. by de
icang [17]

Remark

The proof is only true if m and n are equal. Make it more general.

m = 2k

n = 2v

m + n = 2k + 2v = 2(k + v).

k and v can be equal but many times they are not. From that simple equation you cannot do anything for sure but divide by 2.

There are 4 combinations

m is divisible by 4 and n is not. The result will not be divisible by 4.

m is not divisible by 4 but n is. The result will not be divisible by 4.

But are divisible by 4 then the sum will be as well. Here's the really odd result

If both are even and not divisible by 4 then their sum is divisible by 4

3 0
3 years ago
HELP PLEASE 10 POINTS!!!!!! A country's population in 1993 was 171 million. In 1999 it was 176 million. Estimate the population
Lilit [14]

Let 1993 = time 0 = 0.  

Let 1999 = time 6 = 6  

Let 2012 = time 19 = 19  

So, a = 171 (million). First solve for k.  

176 = 171 e^k6  

176/171 = e^(k*6)  

ln (176/171) = 6k  

k = 1/6 ln (176/171)  

So, in 2012 we have: P(19) = 171 e^(19k), where k = 1/6 ln (176/171)


Hope this helped!

3 0
3 years ago
Hellllllpppppppp meeeeeeeeeeeeeee​
Nitella [24]

Answer:

im not good at this but would it be answer c?

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
What is 1 21/50 in a percentage?
marissa [1.9K]
1 21/50
= 1+ 21/50
= 50/50+ 21/50
= 71/20
= 71/20* 100%
= 142%

The final answer is 142%~
3 0
3 years ago
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