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
Maurinko [17]
2 years ago
8

-2x + 15y = -242x + 9y = 24​

Mathematics
1 answer:
pashok25 [27]2 years ago
3 0

Answer:

dont know

Step-by-step explanation:

sorry

You might be interested in
You are considering developing a regression equation relating a dependent variable to two independent variables. One of the vari
lys-0071 [83]

Answer:

Step-by-step explanation:

a. How many dummy variables are needed to represent the categorical variable?

We need 1 less dummy variable than outcomes for the categorical variable.

categorical variable has 2 outcomes

So, we need 2-1 = 1 dummy variable.

Answer: 1

Note: If our categorical variable had 5 outcomes, we would need 5-1 = 4 dummy variables.

b. Write the multiple regression equation relating the dependent variable to the independent variables.

Note: Depending your your professor, this can be written one of the following ways...

yhat = a + b1 x1 + bx2

yhat = b0 + b1 x1 + b2 x2

yhat = beta0hat + beta1hat x1 + betahat2 x2

where x1 is the ratio variable

and x2 is the dummy variable

c. Interpret the meaning of the coefficients in the regression equation.

b0 = the predicted value of y when x1 and x2 both equal 0.

b1 = the change in y when x1 increases by 1 unit holding x2 constant.

b2 = the predicted difference in y between the two possible outcomes of the categorical variable holding x1 constant.

7 0
3 years ago
The entire group beging studied and from which sample are taken is called the​
navik [9.2K]

Answer:

individual is the correct answer

Step-by-step explanation:

5 0
3 years ago
Tatiana is practicing shooting. The coordinates (in m) of the barrel of her gun and the target are (5, 3, 1) and (38, 41, 3). Wh
saul85 [17]

Answer:

d=\sqrt{2,537}\ m   or  d=50.37\ m

Step-by-step explanation:

we know that

the formula to calculate the distance between two points in three dimensions is equal to

d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}+(z2-z1)^{2}}

Let

A(5,3,1)  -----> coordinates of the barrel of her gun

B(38,41,3)  -----> coordinates of the target

substitute the values

d=\sqrt{(41-3)^{2}+(38-5)^{2}+(3-1)^{2}}

d=\sqrt{(38)^{2}+(33)^{2}+(2)^{2}}

d=\sqrt{1,444+1,089+4}

d=\sqrt{2,537}\ m

d=50.37\ m

7 0
3 years ago
Tengo que simplificar esta fracción 84/105:<br><br>¡Ayudarme porfavor!
koban [17]

Answer:

Step-by-step explanation:

84/105 = 4/5

5 0
2 years ago
Someone please help me out here.
Natasha2012 [34]

Answer:

1) 3x²+8x

2) 3x²+2x+2

3) -3x²-2x-2

4) 9x³+12x²-2x-1

5) 3x²+5x+1/3x-1

8 0
3 years ago
Other questions:
  • Please help me on this
    11·1 answer
  • How long does it take for a car to travel 250 feet at 35 mph?
    7·1 answer
  • What is the prime factorization of 50?<br> 2x25<br> 2x5<br> 2x5²
    11·1 answer
  • I need an explantion on this question
    9·2 answers
  • Please help me with questions 11-13 god bless
    10·1 answer
  • Simplify the following surds 45 &lt;------ the 45 is a surd
    12·1 answer
  • Help me please , I’ll mark brainliest
    5·1 answer
  • please answer them and attach a picture explaining them! Thank you so so much! Please add this is for number 1 this is for numbe
    13·1 answer
  • HELP ME 10 POINTS!!!!!!
    8·2 answers
  • Solve ~<br><img src="https://tex.z-dn.net/?f=x%20%7B%7D%5E%7B2%7D%20%20-%205x%20%2B%206%20%3D%200" id="TexFormula1" title="x {}^
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!