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
Naddika [18.5K]
3 years ago
14

The function h(x) is defined as shown.

Mathematics
2 answers:
belka [17]3 years ago
7 0
Hello,

h(x)= if x<3 then x+2
                   else  -x+8

(–∞5[ U [5 –∞)=(–∞ 5]


Answer B






Ilya [14]3 years ago
7 0

the answer is B.

thank you


You might be interested in
1. Water is filling a bathtub at a rate of 7 gallons per minute. Complete the table of equivalent
ASHA 777 [7]

Answer:

amount of water: 7, 14, 21, 28, 35

time : 1,2,3,4,5

6 0
3 years ago
On a skiing trip there are five people but only three pairs of skis how many different groups of three could ski
____ [38]
10 different groups can ski.

This is a combination of 5 items taken 3 at a time:
_5C_3=\frac{5!}{3!(5-3)!}=\frac{5!}{3!2!}=\frac{120}{12}=10
3 0
3 years ago
suppose a stock is selling on a stock exchange for 4 3/4 dollars per share. if the price increases 1/2 dollar per share, what is
Luba_88 [7]
The price of the new stock would $5.25 because you have to add the $4.75 and $0.50 to find the new price
7 0
3 years ago
News article reports that "Americans have differing views on two potentially inconvenient and invasive practices that airports c
OverLord2011 [107]

Answer:

1) p1=0.83

2) p2=0.81

3) Option B

4) p=0.82

5) s=0.03

6) z=0.67

7) P=0.50

8) Do not reject H0

Step-by-step explanation:

1) The proportion of Republicans who think the full-body scans should be applied in airports is equal to the ratio between the republicans that think it should over the total Republicans in the poll:

p=X/n=258/311=0.83

2) The proportion of Democrats who think the full-body scans should be applied in airports is equal to:

p=X/n=294/363=0.81

3) As we want to know if there is a difference in the proportions calculated, not if one is higher or lower than the other, the correct option is B:

H_0:p_1-p_2=0\\\\H_a:p_1-p_2\neq0

4) The pooled estimate of a proportion is the average of both proportions:

\bar{p}=\frac{p_1+p_2}{2}= \frac{0.83+0.81}{2}=0.82

5) The standard error can be calculated as:

s=\sqrt{\frac{\bar{p}(1-\bar{p})}{n_1} +\frac{\bar{p}(1-\bar{p})}{n_2}} \\\\s=\sqrt{\frac{0.82*0.18}{311} +\frac{0.82*0.18}{363}} \\\\s=\sqrt{0.00047+0.00041} =\sqrt{0.00088}=0.03

6) The z-statistic can be calculated as:

z=\frac{p_1-p_2}{s}=\frac{0.83-0.81}{0.03}=\frac{0.02}{0.03}=0.67

7) The P-value for z=0.67 is P=0.50 (from the standard normal distribution table).

2P(Z>|z|)=0.50286

8) If the significance level is 0.01, the P-value is bigger than the significance level. The effect is not significanct. The null hypothesis is not rejected.

There is not enough evidence to say that both proportions are different.

A. Do not reject H0

8 0
3 years ago
The recipe for potato salad calls for one teaspoon of vinegar for every 2 teaspoons of mayo how many teaspoons of vinegar are ne
lozanna [386]
To solve this, you see that the amount of mayo is double that of vinegar, so you can simply divide 16/2 to get 8 teaspoons of vinegar
8 0
3 years ago
Other questions:
  • The solution set of x(x-5) is greater than or equal to 0 is
    8·1 answer
  • HELPPPPP PLEASEEEEEE
    13·1 answer
  • A football player weighed 170 pounds in May. During the summer, he gained 25 5/12 pounds. During the first week of fall practice
    14·1 answer
  • What ratios are equivalent to 25:15
    11·2 answers
  • A bookstore tracked the data of the weight of their deliveries and the number of books in each box. They created a scatterplot a
    5·2 answers
  • Which point is located at 3/4
    12·2 answers
  • Okay help again u guys are so smart
    12·1 answer
  • Find the area of the rectilinear
    12·1 answer
  • Which of the following is the scientific notation for the number 0.00001526?
    5·1 answer
  • Please help! I do not know how to find the unknown variables using the Pythagorean theorem. Any help will be greatly appreciated
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!