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
Bumek [7]
2 years ago
9

HELP!!!!!!!!!!!!!!!!!!!! 20=2(y-6)+10

Mathematics
1 answer:
nata0808 [166]2 years ago
6 0

Answer:

2+2y

Step-by-step explanation:

20=2(y-6)+10

20= (2×y-2×6)+10

20= (2y-12)+10

Open the bracket

20=2y-12+10

Collect liked terms

20=12+10+2y

20=22+2y

=22-20+2y

2+2y

Hope this helps

Comment for more explanation

You might be interested in
Scores on the ACT exam have a N(μ = 18,σ = 6) distribution, while scores on the SAT
elena-14-01-66 [18.8K]

Answer:

Emily has a higher relative score since her z-score is higher. This would mean she scored further above the mean than Xiaoyu.

Step-by-step explanation:

Find the z-scores by subtracting the score they got by the mean and then dividing by the standard deivation of their respective exams.

Xiaoyu:

z = \frac{27 - 18}{6} = 1.5

Emily:

z = \frac{720 - 500}{100} = 2.2

______

Emily has a higher relative score since her z-score is higher. This would mean she scored further above the mean than Xiaoyu.

3 0
2 years ago
An element with mass 430 grams decays by 27.4% per minute. How much of the element is remaining after 19 minutes, to the nearest
nadya68 [22]
The equation for exponential decay is y=a*b^x, where <em>a</em> is the initial amount, <em>b</em> = 1 + <em>r</em> (the growth rate as a decimal number) and <em>x</em> is the number of time periods (in this case, minutes).  Substituting the information we have:
y=430(1+-0.274)^1^9&#10;\\=430(1-0.274)^1^9&#10;\\=430(0.726)^1^9=0.98.  To the nearest tenth of a gram, this would be 1.0 grams.
7 0
3 years ago
6. Which of the following will NOT produce more
ziro4ka [17]

Answer:

i think its obtuse scalene ??

Step-by-step explanation:

i might not be right but im pretty sure

7 0
3 years ago
FUN FACT
frosja888 [35]

Answer:

word

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Consider a t distribution with 7 degrees of freedom. Compute P(-1.29 &lt; t &lt; 1.29). Round your answer to at least three deci
ss7ja [257]

Answer:

a) 0.76197086

b) -1.73406361

Step-by-step explanation:

a)

Consider a t distribution with 7 degrees of freedom. Compute P(-1.29 < t < 1.29)

P(-1.29 < t < 1.29) would be the area under the t distribution curve with 7 degrees of freedom between -1.29 and 1.29, that is in the interval (-1.29, 1.29).

This can be done the old style by looking up in a table or by using the technology with a spreadsheet.

In Excel, the function TDIST(x,n,2) with x>0 gives the area outside the interval (-x, x) of the t distribution with n degrees of freedom.

So TDIST(1.29,7,2) gives the area outside (-1.29, 1.29).

If we subtract this value from 1 we get the desired result

Hence  

P(-1.29 < t < 1.29) = 1 - TDIST(1.29,7,2) = 1 - 0.23802914 = 0.76197086

In OpenOffice Calc, the function is the same replacing “,” with “;”  

That is

P(-1.29 < t < 1.29) = 1 - TDIST(1.29;7;2) = 0.76197086

b)

Consider a t distribution with 18 degrees of freedom. Find the value of c such that P(t≤ c) = 0.05

We are looking for a point c such that the area of the t distribution with 18 degrees of freedom to the left of c is 0.05

In Excel, the inverse function of TDIST is TINV.  

TINV(p*2,n) with p>0 gives the point c such that the area of the t distribution with n degrees of freedom to the right of c is p.  

Since <em>the t distribution is symmetric with respect to 0</em>, -c would be a point such that the area to the left of -c is p.

So we want to compute  in Excel

-TINV(0.05*2,18) = -1.73406361

In OpenOffice Calc  

-TINV(0.05*2;18) = -1.73406361

3 0
2 years ago
Other questions:
  • Select the correct answer from the drop-down menu find the surface area of this triangular prism
    12·1 answer
  • -6*4/2^3-15 help please
    8·1 answer
  • An airport is located at the point (-4, 3). The noise of planes landing and taking off can be heard up to 3 miles away. Write th
    14·1 answer
  • How to find the domain of a function
    14·1 answer
  • Help me please lots of points
    6·2 answers
  • The ratio of boys to students is 3 to 7. If there are 20 girls in the school, then how many boys are in the school?
    11·1 answer
  • Joshua rented a movie for $4.49 from Cinema Rentals. If the movie is not returned on the due date, Cinema Rentals charges an
    6·1 answer
  • Which statement is true about the length of a square with an area of 200 square inches?
    10·1 answer
  • What are the domain and range of the function f(x) = 3/4 x+5?
    7·1 answer
  • 5(6+9) what is the sum of 30 and another whole number
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!