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3 years ago

7

Which of the following statements best describes the relationship of a relation in the functions like on the play

1 answer:

dolphi86 [110]3 years ago

4 0

Answer:

- A function is always a relation.

- A relation is a function, if and only if, the x- values do not repeat in a given set.

Step-by-step explanation:

I hope this helps UvU

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Someone please help me with this problem

iren [92.7K]

Check the picture below.

so the rectangular prism, or that box, is really just 6 rectangles stacked up to each other at the edges, notice

front and back are just two 9x5 rectangles

left and right are just two 5x4 rectangles

top and bottom are just two 9x4 rectangles

get the area of all 6, sum them up, and that's the area of the box.

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3 years ago

61/18 in simples form

Orlov [11]

$\frac{61}{18}$ is in the simplest form it can be since 61 is a prime number.

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3 years ago

Read 2 more answers

Dana has 800 yards of fencing to enclose a rectangular area. Find the dimensions of the rectangle that maximize the enclosed are

grin007 [14]

Answer:

Perimeter of rectangle states that total distance around the outside, which can be found by adding together the length of each side.

As per the given statement, Dana has 800 yards of fencing to enclose a rectangular area.

Therefore, perimeter of rectangle = 800 yards.

Perimeter(P) of rectangle is given by :

P = 2(x+y) where x is the length and y is the width of the rectangles respectively.

Then,

2(x+y) = 800

Divide both sides by 2 we get;

x+y =400

or

y = 400 -x .....[1]

We know, the area(A) of rectangle is given by

A = xy .....[2]

Substitute equation [1] into [2] we get;l

A = x(400-x)

using distributive property $a\cdot (b+c) = a\cdot b+ a\cdot c$

$A = 400x -x^2$

or

$A =-x^2+400x$ ......[3]

To maximize the enclosed area.

For a quadratic function in standard form $y =ax^2+bx+c$ , the axis of symmetry is a vertical line given by;

$x = -\frac{b}{2a}$

Then; we have from equation [3]

a = -1 and b = 400

By axis of symmetry;

$x = -\frac{b}{2a}$ = $-\frac{400}{2 \cdot -1} =\frac{400}{2} = 200$

Substitute in equation [1] to solve for y:

y = 400 - 200 = 200

The dimensions of the rectangle that maximize enclosed area are:

x = 200 units and y = 200 units.

Maximum area = $200 \times 200 = 40,000$ square units.

We can say that maximum area of rectangle will always be a square

4 0

3 years ago

12. If a basket of guavas weighs 16 kilos, how much do 7 baskets of guava weigh?

djyliett [7]

12. A=112

13. A=992.50

but answer by process comes more.

14. b= 96

16. both side equal 30=30

so I proportion

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3 years ago

The density of copper is 8.94 g/cm^3. What is the mass of a rectangular sheet of copper: 10 cm wide, 45 cm long, and 0.2 cm thic

Brums [2.3K]

Density = mass/volume

Let mass=x

8.94= x/(10*45*.2)

X=8.94*90
Mass=804.6 g

Hope this helped :)

4 0

2 years ago