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
Zolol [24]
3 years ago
15

Use substitution to solve the linear system of equations.

Mathematics
1 answer:
DIA [1.3K]3 years ago
3 0
Plug x-2 into y on the second equation

2x + 4 = x - 2 then just solve for x
You might be interested in
(h) Suppose we sample a new city whose particulate is 13 ppm. If reasonable, create a 95% interval for the predicted rate of chi
Gnom [1K]

Answer:

Explanation below

Step-by-step explanation:

First, it seems you are trying to get the 95% confidence interval (not just interval) for the predicted rate of Childhood Asthma in the city.

This city's particulate is 13 ppm.

The answer is "not reasonable".

Why?

This is because no data is given on the children in the city. 13 ppm is the value for the city's particulate; it is not the mean value for the predicted rate of childhood asthma in the city. If this mean value were available, the 95% confidence interval would be created around this mean.

8 0
4 years ago
Help me pleaseeeee thanks
LuckyWell [14K]

Answer:

B. 14.075

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Which type of study best describes the following research most likely to be done? A teacher wants to know how fast all her stude
Yakvenalex [24]

Census

_____________________________________

<em>*100% CORRECT ANSWERS</em>

Question 1

Which type of study best describes the following research most likely to be done?

A researcher is testing out a brand new type of safety suit for fires and is trying to test the maximum threshold of the suit.

Simulation Study  

Question 2

Which type of study best describes the following research most likely to be done?

A test is being conducted on a new medicine that is supposed to heal cuts faster. One group is given the actual medicine in a gel type of ointment to apply to the cuts. The second group is given just regular Vaseline that looks like the medicine but has not benefit to put on the cut. The results are then compared.  

Experimental Study  

Question 3

Which type of study best describes the following research most likely to be done?

A researcher is wanting to research the after effects of plant growth after a nuclear reactor meltdown and decides to study plants within a 50 mile radius of the  power plant that had a catastrophic melt down in 2011.  

Observational Study  

Question 4

Which type of study best describes the following research most likely to be done?

A study is being conducted by an insurance actuary and he wants to determine how often American teen drivers that are on the honor roll get into wrecks.  

Sampling  

Question 5

Which type of study best describes the following research most likely to be done?

A teacher wants to know how fast all her students for a particular period can complete a multiplication quiz to check their mental math abilities. So, all of her students are tested on a computer and the time of each and every student is recorded.  

Census

6 0
3 years ago
247÷10^2 and 247 ×10^2
Shalnov [3]
PEMDAS:
247/100 = 2.47
247* 100 = 24700
*You must ALWAYS apply the exponents first, THEN divide the equation.
7 0
4 years ago
Jasmine wants to buy a new backpack that cost $50 if the tax rate is 6.5% how much will she pay when she buys the backpack
melomori [17]
50 + (50 * 0.065) = the answer, sorry I don't have my calculator on me.



3 0
3 years ago
Read 2 more answers
Other questions:
  • A jar contains n nickels and d dimes. There are 28 coins in the jar,and total value of the coins is $2.20. How many nickels and
    12·1 answer
  • A box of old books contains 6 mysteries, 4 biographies, and 2 children’s books. Which of the following can be used to determine
    14·1 answer
  • Jorge has his own business as a painter. The amounts he made in the last five months are shown below. Find the mean, median, and
    13·1 answer
  • Solve for x.<br><br> x − 1/4 = 3/8
    13·2 answers
  • Can someone type this for me so I can copy and paste​
    15·1 answer
  • A rectangular logo is made up of 3 squares and 8 small squares the length of the rectangle is 36 cm
    7·1 answer
  • I would appreciate the help!
    9·2 answers
  • Find the x- and y-intercepts of the graph of – 10x + 3y = 10. State your
    14·1 answer
  • Write down an expression for the total cost of four pencils and two rubbers
    5·1 answer
  • I need help on this.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!