3 years ago

Determine the intervals on which the function is increasing, decreasing, and constant.

Mathematics

1 answer:

zaharov [31]3 years ago

6 0

Answer:

increasing x < 0; decreasing x > 0 because x is greater than 0.

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A rug is 3 feet longer than 5 times the width. The area of the rug is 92 square feet. What are the dimensions of the rug?

Rzqust [24]

Answer:

Step-by-step explanation:

L=W+5

Area=LW

36=(W+5)W

36=W^2+5W

W^2+5W-36=0

(W+9)(W-4)=0

W-4=0

W=4 ANS. FOR THE WIDTH.

L=4+5=9 ANS. FOR THE LENGTH.

PROOF:

36=9*4

36=36

I hope this helped! ;)

4 0

3 years ago

Read 2 more answers

I need your help on these questions. Please explain each of them. Thank you for your support

kodGreya [7K]

Answer:

Gemma

9 X 150 = 1350

61000/100 X 2 =1220

add together $2570

Fred

14350/100x2=287

200 + 287 = $487

Erik

4 X 160 = 640

153000/100 X 2.5 = 3825

3825 + 640 = $4465

Allison

510000/100x0.5 = $2550

4 0

3 years ago

A rectangular swimming pool is 25 ft long and 20 1/2 ft wide, and it must be filled to a depth of 4 1/2 ft. One cubic foot of wa

bazaltina [42]

ANSWER

307½ gallons of water

EXPLANATION

The volume of the rectangular swimming pool is

$V = l \times w \times h$

where l=25ft and w=20½ ft.

when it is filled to a depth of 4½ ft ,then the height is , h=4½ ft.

We substitute these values into the formula to get:

$V = 25\times 20.5\times 4.5$

$V = 2306.25 {ft}^{3}$

If one cubic foot of water is 7½ gallons, then 2306.25 cubic feet will be

$\frac{2306.25}{7.5} = 307.5gallons$

We need 307.5 gallons of water to fill the pool.

4 0

3 years ago

I need help with this ( see image). Please show workings.

I am Lyosha [343]

Answer:

32. (E)stopped at 2pm

33. (A)

Step-by-step explanation:

32. on the graph you go across the x axis and find where the straight line starts and look for the time

33. look at the y-axis and see what line and the number it is on

7 0

3 years ago

A scooter is 3 1/2 feet long. Find the length of a scale model of the scooter if the scale is 1 inch = 3/4 feet.

Dmitrij [34]

Answer:

4 2/3

Step-by-step explanation:

42 in / 9in = 42 / 9 = 4 2/3

3 0

3 years ago