Which is f(5) for the function -2x2 + 2x - 3?

Mathematics

2 answers:

nexus9112 [7]2 years ago

8 0

Answer:

f(5) = - 43

Step-by-step explanation:

$f(x) = - 2 {x}^{2} + 2x - 3 \\ plugging \: x = 5 \\ f(5) = - 2( {5})^{2} + 2 \times 5 - 3 \\ \hspace{20 pt} = - 2 \times 25 + 10 - 3 \\ \hspace{20 pt}= - 50 + 7 \\ f(5) = - 43$

aksik [14]2 years ago

5 0

Answer:

-43

Step-by-step explanation:

-2x2 + 2x - 3?

Let x = 5

-2 (5)^2 +2(5) -3

-2 (25) +10 -3

-50 +10 -3

-43

You might be interested in

1. The speed at which an automated assembly line produces a product follows a normal distribution with mean production time of 3

strojnjashka [21]

Answer: Probability = 0.2

Step-by-step explanation:

Given data:

Mean production time = 32.20 seconds

Standard deviation = 1,05seconds

probability that a full production run will take less than 32 seconds on average to produce

= P(Xbar<32)

= P(Z<-0.8518)

= 0.2

8 0

2 years ago

Correct 89.6162 to two decimal places

JulsSmile [24]

Answer:

89.62

Step-by-step explanation:

Look at the 3rd place of decimals - this is 6 so we add one to the second place.

4 0

2 years ago

Read 2 more answers

Samir is an expert marksman. When he takes aim at a particular target on the shooting range, there is a 0.950.950, point, 95 pro

bearhunter [10]

The question is incomplete. Here is the complete question:

Samir is an expert marksman. When he takes aim at a particular target on the shooting range, there is a 0.95 probability that he will hit it. One day, Samir decides to attempt to hit 10 such targets in a row.

Assuming that Samir is equally likely to hit each of the 10 targets, what is the probability that he will miss at least one of them?

Answer:

40.13%

Step-by-step explanation:

Let 'A' be the event of not missing a target in 10 attempts.

Therefore, the complement of event 'A' is $\overline A=\textrm{Missing a target at least once}$