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harkovskaia [24]
2 years ago
12

Can you please help me ASAP

Mathematics
1 answer:
Tanya [424]2 years ago
4 0

Answer: 30

Step-by-step explanation:

105 + 45 =150

180 - 150 = 30

30 +90 = 120

180 - 120 = 60

2x = 60

x =30

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Find the degree measure of each angle in the triangle
Karo-lina-s [1.5K]

Answer:

∠L = 43°

∠M = 121°

∠N = 16°

Step-by-step explanation:

<u>Start by setting all sides equal to 180</u>

3x - 5 + 7x + 9 + x = 180

<u>Add like terms</u>

11x + 4 = 180

<u>Solve for x</u>

11x + 4 = 180

      - 4     - 4

      11x = 176

     / 11     /11

        x = 16

<u>Now, plug in 16 for all instances of x on the triangle and solve.</u>

∠L = 43°

∠M = 121°

∠N = 16°

4 0
3 years ago
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
I need help with geometry
Vilka [71]
If i’m not wrong the answer should be B
8 0
3 years ago
Read 2 more answers
Factor the expression 8+16
Darina [25.2K]
We can't really factor it, because it's already simplified. We only need to add...
8+16=24
=24

Have a nice day! :)
4 0
3 years ago
Read 2 more answers
1. Which polynomial does the model represent?
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D is the correct formula that the model represents. Black represents negative values, while white represents positive. 
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3 years ago
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