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
r-ruslan [8.4K]
2 years ago
6

I need some help please help meeee!

Mathematics
2 answers:
Reil [10]2 years ago
7 0

Answer:

1. A

2. C

3. B

4. B

Step-by-step explanation:

1. Subtract 4.2 on both sides of the equation so you're left with y = -0.8

2. Add 1.9 on both sides of the equation so you are left with m = 4.

3. Distribute 1/5 into (3+2z) to get 3/5 + 2/5z - 4z = -3. Combine like terms so you have 3/5 - 3 3/5z = -3. Subtract 3/5 on both sides to get -3 3/5z = -3 3/5. Divide by -3 3/5 on both sides to get z = -1.

4. Distribute 4 into (2+ t) to get 1/2t -8 -4t = 20. Combine like terms to get -3 1/2t - 8 = 20. Add 8 on both sides to get -3 1/2t = 28. Divide -3 1/2 on both sides to get t = -8.

nevsk [136]2 years ago
4 0

Answer:

1=a

2=c

3=b

4=a

Step-by-step explanation:

You might be interested in
magazine provided results from a poll of adults who were asked to identify their favorite pie. Among the ​respondents, ​% chose
Alex73 [517]

Complete Question

A magazine provided results from a poll of 500 adults who were asked to identify their favorite pie. Among the 500 ​respondents, 12 ​% chose chocolate​ pie, and the margin of error was given as plus or minus 5 percentage points.What values do ​ \r p ,  \ \r q, ​n, E, and p​ represent? If the confidence level is 90​%, what is the value of \alpha ​?

Answer:

a

   \r p is the sample proportion   \r  p  =  0.12

   n is the  sample size is  n  =  500

   E is the  margin of error is E  =  0.05

   \r  q represents the proportion of those that did not chose chocolate​ pie i.e                        \r  q  =  1-  \r p

b

   \alpha  = 10\%

Step-by-step explanation:

Here

    \r p is the sample proportion   \r  p  =  0.12

   n is the  sample size is  n  =  500

    \r  q represents the proportion of those that did not chose chocolate​ pie i.e  

      \r  q  =  1-  \r p

      \r  q  =  1-  0.12

      \r  q  = 0.88

     E is the  margin of error is E  =  0.05

Generally \alpha is the level of significance and it value is mathematically evaluated as

     \alpha  = ( 100 -  C  )\%

Where  C is the confidence level which is given in this question as  C =  90  \%

So  

    \alpha  = ( 100 -  90  )\%

    \alpha  = 10\%

5 0
3 years ago
A card is drawn at random from a standard pack of playing cards.
Hatshy [7]

Answer:

the chance at getting 9 is 17% and then 50% for the coin

Step-by-step explanation:

5 0
2 years ago
A backpacking tent in the shape of a triangular prism has sides that are 6 ft and a length of 7 ft. What is the volume of the te
Zanzabum
<span>the volume of the tent to the nearest whole number is 109.</span>
3 0
3 years ago
Matthew practiced playing the guitar for 2/3 hours. Natalie practiced playing the guitar 1 3/4 times as long as
belka [17]

Answer:

2/3*(7/4)=7/6 hours

Step-by-step explanation:

7 0
2 years ago
3. Determine if the following triangle is a right triangle or not using the Pythagorean Theorem Converse. Triangle with side len
stepladder [879]

Answer:

false

Step-by-step explanation:

these measure do not form a right triangle

5 0
1 year ago
Other questions:
  • What is 15,409 in all forms
    12·1 answer
  • PLS HELP
    11·1 answer
  • PLEAsE hELP :'000 20 POINTS
    14·1 answer
  • What is 1/18 plus 5/6 in simplest form
    8·2 answers
  • Can someone please help me fill out this table
    9·1 answer
  • What is the ratio of square numbers to prime numbers between 1 and 30 in its simplest form?
    13·1 answer
  • What is the value of x in the proportion (x-1)/5=(4x+2)/35
    7·1 answer
  • Josh and Corey met up for lunch. When they were done, Josh traveled 8 blocks east and Corey traveled 4 blocks west. How many blo
    9·1 answer
  • Consider the quadratic function f(x)= 9x^2+30x+25=0
    5·1 answer
  • Describe how to subtract a decimal from a whole number. Use 15 - 12.75 as an example, and determine its solution.
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!