MATHEMATICS COLLEGE

Race car driver mario won 3 races and earned 75 points for each win. During the fourth race he had deductions of 55 points 104 points and 85 points but earned 3 points for finishing. Write and find the value of an expression for how many points he has now

Answers

Answer 1

Answer:

Answer:

Mario has -16 points.

Step-by-step explanation:

Race car driver Mario won 3 races and earned 75 points for each win.

Total points won = $75*3=225$

During the fourth race he had deductions of 55 points 104 points and 85 points but earned 3 points for finishing.

Total points Mario has now = $225+(-55)+(-104)+(-85)+3$

= -16 points

Therefore, Mario has -16 points.

Answer 2

Answer:

Answer:

(75 * 3) + 55 + 104 + 85 + 3.

75 * 3, because each race is 75 points.

And now I am confused. "deductions"?

Step-by-step explanation:

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Please help. Write each phrase as an algebraic expression.

Answers

Answer:

The operation for 7 and x = addition

The expression= 7 + x

The quotient of z and 3

The operation is= dividing

The expression is= $(z)/(3)$

Robin is making bows to sell at her mother's yard sale. She will use 3/4 foot of red ribbon and 2/3 foot of blue ribbon to make each bow. What is the ratio of the length of red ribbon to blue ribbon written as a unit rate?

Answers

Red Ribbon : Blue Ribbon

$(3)/(4) : (2)/(3)$

$(3 * 3)/(4 * 3) : (2 * 4)/(3 * 4)$

$(9)/(12) : (8)/(12)$

$9 : 8$

$1 : (8)/(9)$

What is the inverse of f(x)=(2x+1)2 for x≥−12?

Answers

The inverse of the function will be f⁻¹(x) = [√(x) - 1] / 2 for x ≥ 0.

What is the inverse function?

Let the function f is given as

y = m(x + a) + c

Then the inverse function of the function f will be given by the swapping of x with y and y with x.

The quadratic function is given below.

f(x) = (2x + 1)²

Then the inverse of the quadratic function will be

x = (2f⁻¹(x) + 1)²

2f⁻¹(x) + 1 = √x

2f⁻¹(x) = √x - 1

f⁻¹(x) = [√(x) - 1] / 2 for x ≥ 0

The inverse of the function will be f⁻¹(x) = [√(x) - 1] / 2 for x ≥ 0.

More about the inverse function is given below.

brainly.com/question/2541698

#SPJ2

Answer:

$f^-^1(x)=(x)/(4) - (1)/(2) , x\geq -46$

Step-by-step explanation:

Theres the inverse

Use simple linear regression analysis to find the parameters for the line that minimizes MSE for this time series. Do not round your interim computations and round your final answers to three decimal places. For subtractive or negative numbers use a minus sign. (Example: -300) y-intercept, b0 = Slope, b1 = MSE = One of OSH’s goals is to cut the percentage of U.S. adults who were users of tobacco to 12% or less within nine years of the last year of these data. Does your regression model from part (b) suggest that OSH is on target to meet this goal?

Answers

Answer:

a)The data shows a downward trend pattern

Step-by-step explanation:

See attached images

Final answer:

In simple linear regression, the parameters for the line that minimizes the MSE can be found. To determine if a regression model suggests a goal is being met, compare predicted values to the goal value.

Explanation:

In simple linear regression analysis, the parameters for the line that minimizes the Mean Squared Error (MSE) can be found. The y-intercept (b0) and slope (b1) of the line can be calculated using the data. To determine if the regression model suggests that a goal is being met, you would compare the predicted values from the regression model to the goal value. If the predicted values are less than or equal to the goal value, then the goal is being met.