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
Brums [2.3K]
2 years ago
7

Which is f(5) for the function –2x2 2x – 3? –107 –63 –43 –37.

Mathematics
1 answer:
UkoKoshka [18]2 years ago
3 0

The value of the function at x=5 is -43.

<h2>Expression </h2>

In mathematics, an expression is defined as a set of numbers, variables, and mathematical operations that are formed according to rules which are dependent on the context.  

<h2>Given equation</h2>

f(x)=-2x^2+2x-3

<h3>Solution</h3>

Equating the value in the given equation,

\begin{aligned}f(x)&=-2x^2+2x-3\\f(5)&=-2(5)^2+2(5)-3\\&=-2(25)+10-3\\&=-50+10-3\\&=-43\end{aligned}

Hence, the value of the function at x=5 is -43.

Learn more about Expression:

brainly.com/question/13947055

You might be interested in
Kudrey was making a box plot. He first plotted the least and greatest values. He then divided the distance into half, and then d
lidiya [134]

Step-by-step explanation:

When creating a box plot, the 3 middle values are not found by dividing the distance between the max and min values and then dividing the distances in half again. The 3 middle values are found by finding the median of the set of values, the median of the first half of values, and the median of the last half of values. For example, if the data values were 2, 3, 3, 5, 8, 8, 9, 10, 11, the median is 8, the median of the first half is 3, and the median of the last half is 9. The points to plot to make the box plot are then 2, 3, 8, 9, and 11.

3 0
3 years ago
The table displays the amount of money Stephen has in his piggy bank.
Serggg [28]

Answer:

The answer is 27%, 6/22, and 3/11.

<u>Pls</u><u> </u><u>mark</u><u> </u><u>brainliest</u><u>.</u><u> </u><u>:</u><u>D</u>

7 0
3 years ago
The mean salary of actuaries is LaTeX: \mu=\$100,000????=$100,000 and the standard deviation is LaTeX: \sigma=\$36,730????=$36,7
krek1111 [17]

Answer:

The lower limit of 95% confidence interval is 99002.

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = $100,000

Sample mean, \bar{x} = $111,000

Sample size, n = 36

Alpha, α = 0.05

Population standard deviation, σ = $36,730

First, we design the null and the alternate hypothesis

H_{0}: \mu = \$100,000\\H_A: \mu \neq \$100,000

We have to find the lower limit of the 95% confidence interval.

95% Confidence interval:

\mu \pm z_{critical}\frac{\sigma}{\sqrt{n}}

Putting the values, we get,

z_{critical}\text{ at}~\alpha_{0.05} = 1.96

111000 \pm 1.96(\dfrac{36730}{\sqrt{36}} )\\\\ = 111000 \pm 11998.4667 \\= (99001.5333,122998.4667)\\ \approx (99002,122999)

The lower limit of 95% confidence interval is 99002.

6 0
4 years ago
In bulk, jelly beans cost 18 cents per ounce. What is the cost of the jelly beans in dollars per pound?
Diano4ka-milaya [45]

So we know that there are 16 ounces in one pound, so let's multiply to find how many cents one pound of jelly beans cost:

16*8=128cents

And we know that there are 100 cents in one dollar, so let's divide this by 100:

\frac{128}{100}=1.28

So the jelly beans cost $1.28 per pound.

8 0
4 years ago
Read 2 more answers
I got it incorrect so please help for where each one goes
OLEGan [10]

The first one is right and the third one is right, but you need to switch the 15% and the 95%.

In #2, it's asking for the kids that <em>are not</em> Michael, so it'd be 18/19. Which is then rounded to roughly 95%.

#4 asks for 6/40 = 15%

6 0
3 years ago
Read 2 more answers
Other questions:
  • What is the answer to this3 (c+4)=5c+14?
    8·2 answers
  • I already did the work but I wanted to double change to make sure my answer are correct. The main ones I’m not sure about are 4,
    13·1 answer
  • Bill has been busy preparing snack packs for a hiking trip. He has 24 oranges, 36 chocolate chip
    7·1 answer
  • A standard deck of 52 cards contains four suits: clubs, spades, hearts, and diamonds. Each deck contains an equal number of card
    9·1 answer
  • How do you solve this??
    9·1 answer
  • Truck driver drives for five hours at a constant speed of 55 mph. Write an equation that shows the total distance traveled (y) d
    6·1 answer
  • I need HeeeeEEELP ASAP MY DAD IS CHEKING IN 5 minutes AND I TOLD HIM I WAS DONE PLS HELP
    5·2 answers
  • Can I I please get some help?
    15·1 answer
  • Help please
    10·2 answers
  • I’m super confused on this, can someone help? Thanks :)
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!