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3 years ago

5

Add and subtract fractions Lesson 6.5 3/4-2/5

1 answer:

ad-work [718]3 years ago

5 0

<h3>Hello there i hope you are having a good day :) Your question:</h3><h3>3 2 15 8 7</h3><h3>--- - ---- = ---- - --- = --------</h3><h3>4 5 20 20 20</h3><h3>So you answer would be 7/20.</h3><h3>Hopefully that helps you.</h3>

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I need help please!!!! I will give branlist point.

pochemuha

Answer:

3 minutes per mile

Step-by-step explanation:

among 4 options.. 3 of them are on the constant term that depicts distance per time taken whereas the option 3rd that is (3minutes per mile) is irrelevant to those 4 options

3 0

2 years ago

Read 2 more answers

What is the area of the largest rectangle with lower base on the x-axis and upper vertices on the curve y = 27 − x^2? show your

LUCKY_DIMON [66]

Answer:

Option B.

Step-by-step explanation:

The given curve is

$y=27-x^2$

We need to find the area of the largest rectangle with lower base on the x-axis and upper vertices on the curve $y=27-x^2$ .

Let the vertex in quadrant I be (x,y), then the vertex in quadrant II is (-x,y) .

Length of the rectangle = 2x

Width of the rectangle = y

Area of a rectangle is

$Area=Length\times width$

$Area=2x\times y$

Substitute the value of y from the given equation.

$Area=2x(27-x^2)$

$A=54x-2x^3$ .... (1)

Differentiate with respect to x.

$\frac{dA}{dx}=54-6x^2$

Equate $\frac{dA}{dx}=0$ , to find the critical points.

$0=54-6x^2$

$6x^2=54$

Divide both sides by 6.

$x^2=9$

$x=\pm 3$

The value of x can not be negative because side length can not be negative.

Substitute x=3 in equation (1).

$A=54(3)-2(3)^3$

$A=162-54$

$A=108$

The area of the largest rectangle is 108 square units.

Therefore, the correct option is B.

7 0

3 years ago

Put the following equation of a line into slope-intercept form, simplifying all

lilavasa [31]

Answer:

y = x -7

Step-by-step explanation:

2x - 2y = 14

The slope intercept form is

y = mx+b where m is the slope and b is the y intercept

Subtract 2x from each side

2x - 2y -2x = -2x+14

-2y = -2x+14

Divide each side by -2

-2y/-2 = -2x/-2 +14/-2

y = x -7

The slope is 1 and the y intercept is -7

8 0

4 years ago

Read 2 more answers

Steve is a store manager. He is paid a straight commission of 1.25% on total store sales. Find his commission on monthly store s

ivanzaharov [21]

Answer:

$1,952

Step-by-step explanation:

<u><em>1.25 * 156,215/100</em></u>

<u><em>=1,952</em></u>

8 0

3 years ago

What is the area of a regular pentagon with a radius length of 6 cm?

klemol [59]

Answer:

85.6 cm^2

A=(1/2)r²sin(α)

4 0

3 years ago