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3 years ago

HELP ASSAPP WITH THIS QUESTION

Mathematics

2 answers:

Margaret [11]3 years ago

7 0

105 degrees is the answer

Nonamiya [84]3 years ago

7 0

I THINK 105? sorry if I'm wrong

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Somebody please help me on multiple step equations with parenthesis.

mash [69]

Answer:

k = 8

Step-by-step explanation:

8(10 - k) = 2k

First, distribute within the parenthesis,

80 - 8k = 2k

Add 8k to both sides of the equation

80 = 10k

Divide both sides by 10 to get your answer

8 = k

I hope this helps :)

4 0

3 years ago

Guys please help i’m nearly on 23% and i need to get to 82%- giving brainlest

liberstina [14]

Add the numbers they equal 30 then u divide 30 by 2 since it’s an odd number and you get 15. so 15 is your answer

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3 years ago

Read 2 more answers

Choose the best definition for the term: factor. *

pashok25 [27]

A. One or two or more numbers, algebraic expression, or like that when multiplied together produce a given product.

Hope this helps :)

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3 years ago

The name of the triangle that has a 90 angle

brilliants [131]

Answer:

Right angled triangle or Right Triangle

Step-by-step explanation:

triangle that has a 90 angle is known as RIGHT ANGLED TRIANGLE or RIGHT TRIANGLE

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3 years ago

A simple linear regression analysis was conducted to predict the Exam 3 score of students in STA 2023 based on their Exam 1 scor

Katena32 [7]

Answer:

Option A) As the Exam 1 score increases by 1 point, the student's Exam 3 grade will increase, on average, by 0.4845 points.

Step-by-step explanation:

We are given the following in the equation:

A simple linear regression analysis was conducted to predict the Exam 3 score of students in STA 2023 based on their Exam 1 score.

Thus, Exam 3 score becomes the dependent variable and exam 1 score is the independent variable.

The regression equation is given by:

$\hat{y} = 50.57+0.4845x$

Comparing the equation to a linear equation:

$y = mx + c$

m = 0.4845

c = 50.57

Where m is the slope and tells the rate of change and c is the y intercept that is the value of y when x is 0.

When, there is a increase in x, we can write:

$\hat{y}(x) = 50.57+0.4845x\\\hat{y}(x+1) = 50.57+0.4845(x+1)\\\hat{y}(x+1) - \hat{y}(x) = 50.57+0.4845(x+1)-(50.57+0.4845x)\\\hat{y}(x+1) - \hat{y}(x) = 0.4845$

Thus, the slope of equation can be interpreted as:

Option A) As the Exam 1 score increases by 1 point, the student's Exam 3 grade will increase, on average, by 0.4845 points.

5 0

3 years ago