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
Nikolay [14]
3 years ago
7

100 POINTS PLZ HELP

Mathematics
2 answers:
crimeas [40]3 years ago
6 0

An ordered pair such as (3,-1), is a shorthand way of writing two variables, such as x = 3 and y = -1. The order of the numbers in the pair is important: x always comes before y.

An ordered pair is a composition of the x coordinate (abscissa) and the y coordinate (ordinate), having two values written in a fixed order within parentheses.

It helps to locate a point on the Cartesian plane for better visual comprehension.

The numeric values in an ordered pair can be integers or fractions.

Ordered Pair = (x,y)

Where, x = abscissa, the distance measure of a point from the primary axis “x”

And, y = ordinate, the distance measure of a point from the secondary axis “y”

In the Cartesian plane, we define a two-dimensional space with two perpendicular reference lines, namely x-axis and y-axis. The point where the two lines meet at “0” is the origin.

HOPE IT HELPS

PLEASE MARK ME BRAINLIEST ☺️

Ymorist [56]3 years ago
6 0

Answer:

Please read below

Step-by-step explanation:

If Salesman A had one sale he would earn $1,365 because he makes $65 dollars per sale plus a weekly commission of $1,300. Salesman B would make $340 because he makes $300 dollars weekly and $40 per sale. Salesman C would make $900 dollars, because he makes no commission and gets only weekly pay. Altogether, they would make $2,605.

I am sorry I am so late but here is the answer in case anyone needs it!

You might be interested in
Since spring started, Kareem has been surveying the growth of leaves on his neighborhood trees. He goes out every day and comput
Lynna [10]

Answer:

AAAAAAA

Step-by-step explanation:

did it on edge

7 0
2 years ago
At pizza hut, 9% of the pizzas made last night had extra cheese. if 27 pizzas has extra cheese, how many pizzas in all were made
True [87]
Answer: 300

You need to change 9% into a decimal so it would be 0.09

Then divide 27 ÷ 0.09 = 300

So 9% of 300 is 27
3 0
2 years ago
Given P(x) = 2x3+ 3x2- x + 4, find P(0) and P(-2).
pshichka [43]

9514 1404 393

Answer:

  P(0) = 4

  P(-2) = 2

Step-by-step explanation:

Put the value where the variable is and do the arithmetic.

  P(0) = 2·0³ +3·0² -0 +4

  P(0) = 4

__

  P(-2) = 2·(-2)³ +3·(-2)² -(-2) +4 = 2(-8) +3(4) +2 +4

  P(-2) = -16 +12 +2 +4

  P(-2) = 2

6 0
3 years ago
A pool in the shape of s rectangle has a perimeter 80 feet. The pool is 8 feet less wide than it is long
kykrilka [37]
So, 80 - 8. equals 72 / 2  = 36... then add 36 + 8 to one and you have 44...
44 for length and 36 for width 
3 0
3 years ago
Read 2 more answers
Using the key below, classify each of the following descriptions of epidemiologicalstudies according to study type. In your answ
emmasim [6.3K]

Answer:

Answers are written in BOLD in the explanation below.

Step-by-step explanation:

(A) The study was done in 1975 but the 825 insulation workers were employed or worked between 1941 and 1944. This makes the study a RETROSPECTIVE study.

There is an exposed group (insulation workers) and an unexposed group (coworkers who did not work with insulation). In addition (an additional reason), the study begins with exposed patients and then unexposed patients. These reasons make it a COHORT study.

This study is also an ANALYTICAL study, as the investigators made a postulation, based on analysis of the number of lung cancer deaths among non-insulation workers and the number of lung cancer deaths among insulation workers.

This is also an ECOLOGICAL study, as study results are applicable only at population level.

(B) This is an EXPERIMENTAL study, as the researcher/investigator seeks new knowledge by selecting groups to derive certain data from; in a step by step manner.

Due to the random selection of subjects (volunteers) and random assignment of them to the two groups, this is a RANDOMIZED TRIAL.

The presence of similar experimental and control groups (all volunteers/subjects have osteoarthritis) is a key feature of RANDOMIZED CONTROLLED TRIAL.

After the selection of subjects, experiment of pain levels was conducted for some months (up to a year). This makes the study a PROSPECTIVE study because there was follow-up on the groups, to see who develops the outcome of interest.

The fact that there was no experimental report after 9 and 12 months of follow-up is another key feature of the RCT because in a RCT, the investigator often faces issues like dropout and noncompliance of subjects.

(C) This is a COMMUNITY TRIAL study because two cities/communities are experimented on.

This is also an EXPERIMENTAL study. The fact that both cities have similar demographic profiles and air pollution levels confirms a key feature of experimental studies. There is a 2-year follow-up. This is another reason why the study is experimental and PROSPECTIVE.

(D) This is an OBSERVATIONAL study. This is because already available data was collected and simply looked upon or observed, to know if chewing tobacco was a significant risk factor for stomach cancer.

The data is historical data, hence this is a RETROSPECTIVE study.

This is also a CROSS-SECTIONAL study because it is observational in nature and it gives characteristics of subjects at a single point in time, not over a period of time. It does not have a follow-up period and cannot provide cause-effect relationship between variables.

GOODLUCK!

4 0
3 years ago
Other questions:
  • 50 POINTS + BRAINLIEST
    14·2 answers
  • When someone purchases a new car and begins to drive it, generally speaking, the resale value of the car (in dollars) goes down
    9·1 answer
  • On a circular playground, the distance from its center to the edge of the playground is 37 feet. What is the approximate circumf
    8·1 answer
  • How high up does the ladder reach
    9·1 answer
  • Which point represents -(-10) on the number line?
    5·1 answer
  • What is an algerbric inequality for x is at most 30
    9·2 answers
  • (3⁰-2⁰)×5² - find the value<br> plzzzzz help me
    8·2 answers
  • I need help with 1 and 3 and 5 (PLS HELP) I’m begging I need help
    10·1 answer
  • P varies inversely with x. If P = 7 when x = 8, find the value of P when x = 7.
    12·1 answer
  • A pair of tow trucks are pulling on a trailer that is stuck in mud. The first truck pulls with a force of 10,000 pounds at a 110
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!