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
Pavel [41]
3 years ago
5

F(x) = -x2 + 3x + 13 Find f(-10)

Mathematics
1 answer:
Gekata [30.6K]3 years ago
5 0
-(-10)2+3(-10)+13
(10)2+3(-10)+13
20+-30+13
f(-10)=3
You might be interested in
Assuming that the population is normally​ distributed, construct a 9090​% confidence interval for the population mean for each o
jasenka [17]

Given:

Set A: 1 4 4 4 5 5 5 8

Mean: 4.5

Standard dev: 1.9

 

Set B:

Mean: 4.5

Standard dev: 2.45

 

% =  90 

Set A:

Standard Error, SE = s/ √n =    1.9/√8 = 0.67  

Degrees of freedom = n - 1 =   8 -1 =  7   

t- score =  1.89457861

<span> <span><span> <span>   </span> </span> </span></span>

Width of the confidence interval = t * SE =     1.89457861* 0.67 = 1.272685913

Lower Limit of the confidence interval = x-bar - width =      4.5 - 1.272685913 = 3.23

Upper Limit of the confidence interval = x-bar + width =      4.5 + 1.272685913 = 5.77

The 90% confidence interval is [3.23, 5.77]

 

Set B:

Standard Error, SE = s/ √n =    2.45/√8 = 0.87  

Degrees of freedom = n - 1 =   8 -1 = 7   

t- Score =  1.89457861

<span> <span><span> <span>   </span> </span> </span></span>

Width of the confidence interval = t * SE =     1.89457861* 0.87 = 1.641094994

Lower Limit of the confidence interval = x-bar - width =      4.5 - 1.641094994 = 2.86

Upper Limit of the confidence interval = x-bar + width =      4.5 + 1.641094994 = 6.14

The 90% confidence interval is [2.86, 6.14]

 

<span>We can obviously see that sample B has more variation in the scores than sample A. The fact that the standard deviation is 2.45 for B and 1.9 for A). Therefore, they yield dissimilar confidence intervals even though they have the same mean and range.</span>

6 0
3 years ago
8 2– 2 5 ) ÷ (24 ÷ 6) + 3 2
Ray Of Light [21]

Answer:

46.25

Step-by-step explanation:

82-25=57

24/6=4

57/4=14.25

14.25+32=46.25

7 0
3 years ago
Pls help!!
AleksAgata [21]

Answer:

11.25

Step-by-step explanation:

15x3/4=45/4=11.25pounds

8 0
3 years ago
32 is closer to_ than it is to_.
IgorC [24]
32 is closer to 33 than it is to 40
3 0
3 years ago
Read 2 more answers
Select all measurements that show equivalent volume to the rectangular prism
Lyrx [107]

Answer:

400 is the answer to the botom and a b c and d

Step-by-step explanation:

3 0
2 years ago
Other questions:
  • What is the first step in solving 5x-3=12?
    6·2 answers
  • -3+2(2+x+3). What property of real numbers what do use to transition from step 2 to step 3?
    13·1 answer
  • 12.5*<img src="https://tex.z-dn.net/?f=12.5%20%2A17.9%3D" id="TexFormula1" title="12.5 *17.9=" alt="12.5 *17.9=" align="absmiddl
    13·1 answer
  • The typical Michaelis-Menten equation mathematically describes the overall rate of the reaction as V (this is because biologists
    12·1 answer
  • Maria's math test had 25 questions. she got 84% correct. how many problems did she get wrong?
    13·1 answer
  • Maya has some books she gives away 26 now she has 36 how many did she start with?​
    6·1 answer
  • 10.In Star School, the ratio of students who bring
    13·1 answer
  • Bryson has soccer practice for 2 1/4 hours 2 times a week. How much time does Bryson spend at soccer practice in 1 week?
    9·2 answers
  • How do i multiply numbers with decimals like 2.41 x 12.2?
    13·1 answer
  • Which algebraic expression is equivalent to the expression below?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!