MATHEMATICS COLLEGE

A steep mountain road has a grade of 8%, which means that the road rises 8 feet vertically for every 100 feet it travels horizontally. write the grade as a ratio in simplest form.

Answers

Answer 1
Answer: 8/100, both can be divided by four, so in simplest form 2/25

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Let a1equals[Start 3 By 1 Matrix 1st Row 1st Column 1 2nd Row 1st Column 2 3rd Row 1st Column negative 1 EndMatrix ]​, a2equals[Start 3 By 1 Matrix 1st Row 1st Column negative 7 2nd Row 1st Column negative 7 3rd Row 1st Column 2 EndMatrix ]​, and bequals[Start 3 By 1 Matrix 1st Row 1st Column 3 2nd Row 1st Column negative 22 3rd Row 1st Column h EndMatrix ]. For what​ value(s) of h is b in the plane spanned by a1 and a2​?
Stuck on letter b, please help
One of the factors of quadratic is (x+5) the only other piece of information is that the middle term is zero what must the other factor be
PLEASE help me please
Which expression can be used to determine the product of -4 and 3 1/4​

Simplify each equation 3(5x2+2x-4)-x7x2+2x-3)

Answers

Answer:  -7x3 + 13x2 + 9x - 12

Answer:

3(5x2+2x-4)-x7x2+2x-3)

15 x 6 + 6x -12 - x7 + x2 + 2x -3

90 + 6x - 12 - x7 + x2 + 2x -3

(6x + 2x) (+90 - 12 - 3) (-x7 + x2)

8x + 75 - x5

julie will build a rectangular pen for her dog against a barn. A wall from the barn will from one side of the pen. She has 32m of fencing to form the other three sides. She plans to build the pen so that it has its maximum possible area. What will be the dimensions of julie's pen?

Answers

The answer is 8 m by 16 m. I just answered this on my quiz.

the answer is 8 and 16

Help!!!
Find all solutions to the equation

7 sin^2x - 14 sin x + 2 = -5

Answers

7 sin^2(x) - 14 sin(x) + 2 = -5
Temporarily substitute y in for sin(x) to make it more readable
7y^2 - 14y + 2 = -5
Move the -5 over by adding to both sides
7y^2 - 14y + 7 = 0
Simplicity by dividing both sides by 7 to get
y^2 - 2y + 1 = 0
Factor to get
(y-1)(y-1) = 0
Or y-1 = 0
y = 1
Therefore
Sin(x) = 1
x = pi/2 + 2pi * n where n represents all whole numbers
Final answer:
x = pi/2 + 2pi * n
Hope I helped :)

This is really easy promise

Answers

Answer:

A.) slope= 4 and y intercept= 3

Step-by-step explanation:

y = x4+3

Answer:

y = x4+3

Step-by-step explanation:

look at answer

Please help me out with the below question

Answers

Answer:

A

Step-by-step explanation:

this is only what I know correct me if I'm wrong thank you

Reece is setting up a large fish tank. The tank is 1.8metres long and 0.6 metres wide. The water in the tank is 50 cm deep. Reece needs to add a liquid treatment to the water. The instructions tell him to add 5 ml of treatment for every 0.18 m3. How many treatment does Reece need to add?​

Answers

Reece needs to add 3 treatments to the fish tank.

How to determine How many treatment does Reece need to add

First, we need to calculate the volume of the fish tank in cubic meters.

Volume = Length × Width × Depth

Volume = 1.8 m × 0.6 m × 0.5 m (converting 50 cm to meters by dividing by 100)

Volume = 0.54 m³

Now, we can calculate how many treatments Reece needs to add using the given ratio of 5 ml per 0.18 m³.

Number of treatments = Volume of tank / Volume per treatment

Number of treatments = 0.54 m³ / 0.18 m³

Number of treatments = 3 treatments

Therefore, Reece needs to add 3 treatments to the fish tank.

Learn more about the volume at brainly.com/question/463363

#SPJ3

Answer:

15 ml

Step-by-step explanation:

Find the volume of the tank which is 1.8m*0.6m*0.5m=0.54m^3

For every 0.18m^3,5ml of treatment is added,what of 0.54m^3

(0.54m^3*5ml)/(0 18m^3)=15ml
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Dixie Showtime Movie Theaters, Inc., owns and operates a chain of cinemas in several markets in the southern U.S. The owners would like to estimate weekly gross revenue as a function of advertising expenditures. Data for a sample of eight markets for a recent week follow.MarketWeekly Gross Revenue($100s)Television Advertising($100s)Newspaper Advertising($100s)Mobile101.351.5Shreveport51.933Jackson74.841.5Birmingham126.24.34.3Little Rock137.83.64Biloxi101.43.52.3New Orleans237.858.4Baton Rouge219.66.95.8(a) Use the data to develop an estimated regression with the amount of television advertising as the independent variable.Let x represent the amount of television advertising.If required, round your answers to four decimal places. For subtractive or negative numbers use a minus sign even if there is a + sign before the blank. (Example: -300)= + xTest for a significant relationship between television advertising and weekly gross revenue at the 0.05 level of significance. What is the interpretation of this relationship?The input in the box below will not be graded, but may be reviewed and considered by your instructor.(b) How much of the variation in the sample values of weekly gross revenue does the model in part (a) explain?If required, round your answer to two decimal places.%(c) Use the data to develop an estimated regression equation with both television advertising and newspaper advertising as the independent variables.Let x1 represent the amount of television advertising.Let x2 represent the amount of newspaper advertising.If required, round your answers to four decimal places. For subtractive or negative numbers use a minus sign even if there is a + sign before the blank. (Example: -300)= + x1 + x2Is the overall regression statistically significant at the 0.05 level of significance? If so, then test whether each of the regression parameters β0, β1, and β2 is equal to zero at a 0.05 level of significance. What are the correct interpretations of the estimated regression parameters? Are these interpretations reasonable?The input in the box below will not be graded, but may be reviewed and considered by your instructor.(d) How much of the variation in the sample values of weekly gross revenue does the model in part (c) explain?If required, round your answer to two decimal places.%(e) Given the results in part (a) and part (c), what should your next step be? Explain.The input in the box below will not be graded, but may be reviewed and considered by your instructor.(f) What are the managerial implications of these results?The input in the box below will not be graded, but may be reviewed and considered by your instructor.