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3 years ago

14

(8:2). 4+{[3-2).2-5].4 expresoa numerica

1 answer:

GaryK [48]3 years ago

3 0

4+{[3-2).2-5].4

1st proceder a la multiplicación ==> 4+{(6-4) -5}4

2nd Quitar los paréntesis ==> 4+{2-5}4==> 4+{-3}4

3rd multiplicación: 4+{-12}

4th = - 8

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A square has an area of 75 square meters. Which of the following is closest to the length of a side of the square?

Ilya [14]

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3 years ago

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4 years ago

A bulletin board has a perimeter of 200 inches. Which expression expresses the area A(w) of the bulletin board as a function of

mr Goodwill [35]

Answer:

area A(w) of the bulletin board as a function of its width, w =[100-w]*w= 100w- $w^{2}$

Step-by-step explanation:

let, the shape of the bulletin board is a rectangle,

then the perimeter of it = sum of all sides

= 2[length+width] = 2[l+w]

(let l: length, w : width )

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3 years ago

I need help plzzzzzz

My name is Ann [436]

(1) The train travels 4 miles per gallon.

(2) The slope of the graph is $m=\frac{1}{4}$

Explanation:

(1) The miles that train travels per gallon is given by

$Miles= \frac{800}{200}$

Dividing, we have,

$Miles= 4$

Thus, the train travels 4 miles per gallon.

(2) To determine the slope, let us consider two points from the graph.

The coordinates are $(0,0)$ and $(800,200)$

Thus, substituting the coordinates in the slope formula, we get,

$m=\frac{200-0}{800-0}$

Simplifying, we have,

$m=\frac{200}{800} =\frac{1}{4}$

Thus, the slope of the graph is $m=\frac{1}{4}$

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3 years ago

• Which of the following equations represents a line that is perpendicular to

JulsSmile [24]

Answer:

C

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

y = - 4x + 9 ← is in slope- intercept form

with slope m = - 4

Given a line with slope m then the slope of a line perpendicular to it is

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To find c substitute (4, 5) into the partial equation

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3 years ago