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RideAnS [48]
3 years ago
15

4х – бу =11 3х + 2y = 9

Mathematics
1 answer:
k0ka [10]3 years ago
5 0

Answer:

(3/26, 38/13)

Step-by-step explanation:

I hope I solved it right and it helped you somehow

If you have any questions about the way I solved it, don't hesitate to ask :)

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What is 70% of blank = 28
QveST [7]
Percent means parts out of 100
70%=70/100=7/10
7/10 of x=28
'of' means multiply
7/10 x=28
multiply both sides by 10/7 to get rid of fraciton
x=40


the number is 40
5 0
3 years ago
Read 2 more answers
Find all the zeros of the function f(x)=x^3+15x^2+67x+53
Elza [17]
<span> x = 3<span> x =(-12-√-4)/-2=6+i= 6.0000-1.0000i</span><span> x =(-12+√-4)/-2=6-i= 6.0000+1.000</span></span>
7 0
3 years ago
. The estimate regression equation for a model involving two independent variables and 10 observations follows.y = 29.1270 + 0.5
beks73 [17]

Answer:

b) y = 289.815 when x_1 = 180 \text{ and } x_2 = 310

Step-by-step explanation:

We are given the following information in the question:

y = 29.1270 + 0.5906x_1 + 0.4980x_2

where y is the dependent variable,

x_1, x_2 are the independent variable.

The multiple regression equation is of the form:

y = b_0 + b_1x_1 + b_2x_2

where,

b_0: is the intercept of the equation and is the value of dependent variable when all the independent variable are zero.

b_1: It is the slope coefficient of the independent variable x_1.

b_2: It is the slope coefficient of the independent variable x_2.

  • The regression coefficient in multiple regression is the slope of the linear relationship between the dependent and the part of a predictor variable that is independent of all other predictor variables.

Comparing the equations, we get:

b_1 = 0.5906\\b_2 = 0.4980

  • This means holding x_2 constant, a change of one in x_1 is associated with a change of 0.5906 in the dependent variable.
  • This means holding x_1 constant, a change of 1 in x_2 is associated with a change of 0.4980 in the dependent variable.

b) We have to estimate the value of y

y = 29.1270 + 0.5906(180) + 0.4980(310) = 289.815

3 0
3 years ago
Find tan A for the triangle below.<br><br><br> a. 0.4167<br> b. 0.385<br> c. 2.4<br> d. 0.923
Sav [38]

Answer:

C "ccccccccccccccccccc

5 0
2 years ago
Which function has a constant additive rate of change of –1/4? A coordinate plane with a straight line with a negative slope. Th
Naddika [18.5K]

Answer:

i honestly have no idea:(

Step-by-step explanation:

sorry

3 0
2 years ago
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