All categories

2 years ago

Given: 4 < a < 5, 2 < b < 4 Find: a/3b - b/3a Please answer fast!!

Mathematics

2 answers:

vesna_86 [32]2 years ago

7 0

Answer:

answer

Step-by-step explanation:

you have to subtract 3b from 3a so the answer is 0.

frez [133]2 years ago

7 0

Answer:

1/9

Step-by-step explanation:

since 4 < a < 5, a= 4.5 and since 2 < b < 4, b=3

4.5/3(3) - 3/3(4.5)

then you can cross simplify and the 3s cancel out in the second half and the 4.5s cancel each other out leaving you with 1/3(3) which is 1/9

You might be interested in

There is a bag of 50 marbles. Andre takes out a marble, records its color, and puts it back in the bag. In 4 trails, he gets a g

azamat

Answer:

1/4 or 25%

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers

The length of a rectangle is the sum of the width and one. The area direct angle 72 units. What’s the length, in units, of the r

insens350 [35]

Answer:

The length of the rectangle is of 9 units.

Step-by-step explanation:

Solving a quadratic equation:

Given a second order polynomial expressed by the following equation:

$ax^{2} + bx + c, a\neq0$ .

This polynomial has roots $x_{1}, x_{2}$ such that $ax^{2} + bx + c = a(x - x_{1})*(x - x_{2})$ , given by the following formulas:

$x_{1} = \frac{-b + \sqrt{\bigtriangleup}}{2*a}$

$x_{2} = \frac{-b - \sqrt{\bigtriangleup}}{2*a}$

$\bigtriangleup = b^{2} - 4ac$

Area of a rectangle:

A rectangle has width $w$ and length $l$ . The area is the multiplication of these measures, that is:

$A = wl$

The length of a rectangle is the sum of the width and one.

This means that $l = w+1$ , or $w = l - 1$

The area direct angle 72 units. What’s the length, in units, of the rectangle

We want to find the length. So

$wl = 72$

$(l-1)l = 72$

$l^2 - l - 72 = 0$

Quadratic equation with $a = 1, b = -1, c = -72$ . So

$\bigtriangleup = (-1)^{2} - 4(1)(-72) = 289$

$l_{1} = \frac{-(-1) + \sqrt{289}}{2*(1)} = 9$

$l_{2} = \frac{-(-1) - \sqrt{289}}{2*(1)} = -8$

Since the length is a positive measure, the length of the rectangle is of 9 units.

8 0

2 years ago

Expressions that are equivalent to - 4x -8

Ronch [10]

Answer:

-2(2x+4)

Step-by-step explanation:

5 0

2 years ago

CINDY IS A HOSTESS AT A COUNTRY CLUB

stich3 [128]

Answer and Step-by-step explanation:

Add together the hours, then divide the amount earned by the total amount of hours.

3 + 5 = 8

105 ÷ 8 = $13.125 (which would round up to 13.13) [About $13.13] is earned per hour.

#teamtrees #PAW (Plant And Water)

5 0

2 years ago

What are the coordinates of A after reflecting across the line x = 3?

Pachacha [2.7K]

Answer:

It would be (3,2) since it is being reflected over the line it is already on

Step-by-step explanation:

3 0

2 years ago