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3 years ago

A cube shaped tissue box is made entirely of cardboard. The tissue box has a length of 5 in.

2 answers:

6 0

Since no further dimensions are given, I assume that the question is asking for the surface area of the box.

A=6 $a^{2}$
A=6(25)
A=150 $in^{2}$ of cardboard.

Daniel [21]3 years ago

5 0

A cube has equal length, height and depth.

The area of one face is 5inches * 5inches, which would equal 25inches^2.

Multiply this by 6, for the 6 faces on a cube, and we get 150inches^2 of cardboard.

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Graph the equation on the coordinate plane.

abruzzese [7]

Solution :

Given, the equation $y=-2x$ .

To graph the equation on the coordinate plane, we first need to derive the different points of the equation $y=-2x$ ,

$at\:\;x=0\Rightarrow y= -2(0)=0\\\\at\:\;x=1\Rightarrow y= -2(1)=-2\\\\at\:\;x=2\Rightarrow y= -2(2)=-4\\\\at\:\;x=3\Rightarrow y= -2(3)=-6\\\\at\:\;x=-1\Rightarrow y= -2(-1)=2\\\\at\:\;x=-2\Rightarrow y= -2(-2)=4\\\\at\:\;x=-3\Rightarrow y= -2(-3)=6$

The graph plotted using these points is shown in the figure,

8 0

3 years ago

Submit your solution. A=h/2(a+b); for h

Nimfa-mama [501]

A=h/2(a+b)
A=h/2a+2b
A(2a+2b)=h

8 0

2 years ago

Write an equation and solve. Round to the nearest hundredth where necessary. 19 is what percent of 40?

snow_lady [41]

You first divide 40 by 19:

19/40=?

Then you convert that to percentage by dropping the decimal point and attaching a %

(hint: you should get 48% about :)

3 0

3 years ago

Read 2 more answers

Why is the notation startfraction dy over dx endfraction used to represent the derivative?

kkurt [141]

We know $\frac{dy}{dx}$ expression is used for represent the derivative.

Actually, derivative is the second name of " Rate of Change".

And if we read $\frac{dy}{dx}$ , it represents the "Rate of change of y with respect to x".

In simple words, a derivative is the rate of change or slope of a very small portion of a function.

dy represents very small change in y-coordinate and dx represents very small change in x-coordinate.

Because deriviate is the second name of " a very small rate of change".

We use $\frac{dx}{xy}$ to represent the derivative.

8 0

2 years ago

Given the functions f(x) = x2 + 6x − 1, g(x) = –x2 + 2, and h(x) = 2x2 − 4x + 3, rank them from least to greatest based on their

nevsk [136]

Axis of symmetry = x = -b/2a
where y = ax² + bx + c

f(x) = x² + 6x - 1 ⇒ a = 1 ; b = 6 ; c = -1
x = -(6)/2(1) = -6/2 = -3

g(x) = -x² + 2 ⇒ a = -1 ; b = 0 ; c = 2
x = -0/2(-1) = 0/-2 = 0

h(x) = 2x² - 4x + 3 ⇒ a = 2 ; b = -4 ; c = 3
x = -(-4)/2(2) = 4/4 = 1

least : f(x) = x² + 6x - 1 ; axis of symmetry is -3
middle : g(x) = -x² + 2 ; axis of symmetry is 0
greatest : h(x) = 2x² - 4x + 3 ; axis of symmetry is 1

5 0

2 years ago

Read 2 more answers