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
Virty [35]
3 years ago
13

HELP PLEASE DUE IN 10 MIN.

Mathematics
2 answers:
Elodia [21]3 years ago
5 0
Add like terms. Like terms are terms that have the same variable.

<span>9x + 2y + 6 + 9y + 7 =

= 9x + 2y + 9y + 6 + 7

= 9x + 11y + 13

The coefficient of y is 11.
The constant is 13.
</span>
Nutka1998 [239]3 years ago
5 0

Answer:

I only know that the coefficent of y is 11

Step-by-step explanation:

You might be interested in
Factorise this : 2p²-p-10
gizmo_the_mogwai [7]

Answer:

Step-by-step explanation:

p(2p-1)-10

8 0
3 years ago
A college job placement office collected data about students’ GPAs and the salaries they earned in their first jobs after gradua
frez [133]

Answer:

X is the GPA

Y is the Salary

Standard deviation of X is 0.4

Standard deviation of Y is 8500

E(X)=2.9

E(Y)=47200

We are given that The correlation between the two variables was r = 0.72

a)y = a+bx

b = \frac{\sum(x_i-\bar{x})(y_i-\bar{y})}{\sum(x_i-\bar{x})^2} = \frac{r \times \sqrt{var(X) \times Var(Y)}}{Var(X)} =  \frac{0.72 \times \sqrt{0.4^2 \times 8500^2}}{0.4^2} = 15300

a=y-bx = 47200-(15300 \times 29) = 2830

So, slope =  15300

Intercept =  2830

So, equation : y = 2830+15300x

b) Your brother just graduated from that college with a GPA of 3.30. He tells you that based on this model the residual for his pay is -$1880. What salary is he earning?

y = 2830+15300 \times 3.3 = 53320

Observed salary = Residual + predicted = -1860+53320 = 51440

c)) What proportion of the variation in salaries is explained by variation in GPA?

The proportion of the variation in salaries is explained by variation in GPA = r^2 = (0.72)^2 =0.5184

8 0
2 years ago
Three coins are tossed.<br> What is the probability that<br> all three will land tails up?
Angelina_Jolie [31]

Answer: 1/4

Step-by-step explanation:

5 0
2 years ago
What I do by step <br><br> Simplify
ch4aika [34]
Multiply everything by 2 then combine like terms
4 0
3 years ago
How do I solve this?​
lakkis [162]

Answer:

\large\boxed{4\sqrt{-81}+\sqrt{-25}=41i}

Step-by-step explanation:

i=\sqrt{-1}\\\\\sqrt{-81}=\sqrt{(81)(-1)}=\sqrt{81}\cdot\sqrt{-1}=9i\\\\\sqrt{-25}=\sqrt{(25)(-1)}=\sqrt{25}\cdot\sqrt{-1}=5i\\\\4\sqrt{-81}+\sqrt{-25}=4(9i)+5i=36i+5i=41i

3 0
3 years ago
Other questions:
  • Is 35 ,000.00 in the 30,000.00 to 40,000.00 range?
    5·1 answer
  • Jakes batting average for softball season is 0.368 what is Jake’s batting average written in expanded form
    14·1 answer
  • Is it linear or not if it's not explain
    8·1 answer
  • What is 18.345-10.67 and who ever helps me I will help them
    14·2 answers
  • The graph of the inequality will have a dashed line y&gt; 2x -5
    14·2 answers
  • Does a polygon usually have more sides or more angles?
    15·1 answer
  • I’m stuck, please give the explanation for the first question.
    6·2 answers
  • What is 2/6 + 1/3 + 2/5 =?
    5·2 answers
  • Use technology to find the line of best fit for the following data.
    14·1 answer
  • Find the value of x in the triangle shown below.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!