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3 years ago

What is the perimeter of the triangle

Mathematics

2 answers:

Paraphin [41]3 years ago

7 0

Answer:

where the image??

Step-by-step explanation:

Elanso [62]3 years ago

7 0

Answer:

the formula is

Step-by-step explanation:

a + b + c = P ( P= perimeter )

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Ratling [72]

Answer:

D 100% d

Step-by-step explanation:

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3 years ago

Find the equation of the line through the point (6, 9) that has a slope of 4?

RUDIKE [14]

Answer:

D Y=4x-15

Step-by-step explanation:y=Mx+b

6 0

4 years ago

Are these triangules the same? and if so how?

Tpy6a [65]

Answer:

The answer to part one is no because one of them has a 37 in the place where it should have a 53 seeing as they are congruent(the same).

For part 2 it is a posibility that they are equal.

Step-by-step explanation:

4 0

3 years ago

You have asked to design a rectangle box with a square base and an open top. The volume of the box must be620 cm to the 3rd powe

hammer [34]

Answer:

$69.21

Step-by-step explanation:

Since the box has a square base the length and breadth of the box will be equal. Let it be $x$

Let h be the height of the box

V = Volume of the box = $620\ \text{cm}^3$

$x^2h=620\\\Rightarrow h=\dfrac{620}{x^2}$

Now surface area of the box with an open top is given

$s=x^2+4xh\\\Rightarrow s=x^2+4x\dfrac{620}{x^2}\\\Rightarrow s=x^2+\dfrac{2480}{x}$

Differentiating with respect to x we get

$\dfrac{ds}{dx}=2x-\dfrac{2480}{x^2}$

Equating with zero

$0=2x-\dfrac{2480}{x^2}\\\Rightarrow 2x^3-2480=0\\\Rightarrow x^3=\dfrac{2480}{2}\\\Rightarrow x=(1240)^{\dfrac{1}{3}}\\\Rightarrow x=10.74$

Double derivative of the function

$\dfrac{d^2s}{ds^2}=2+\dfrac{4960}{x^3}=2+\dfrac{4960}{1240}\\\Rightarrow \dfrac{d^2s}{ds^2}=6>0$

So, x at 10.74 is the minimum value of the function.

$h=\dfrac{620}{x^2}\\\Rightarrow h=\dfrac{620}{10.74^2}\\\Rightarrow h=5.37$

So, minimum length and breadth of the box is 10.74 cm while the height of the box is 5.37 cm.

The total area of the sides is $4xh=4\times 10.74\times 5.37=230.7\ \text{cm}^2$

The area of the base is $x^2=10.74^2=115.35\ \text{cm}^2$

Cost of the base is $0.40 per square cm

Cost of the side is $0.10 per square cm

Minimum cost would be

$230.7\times 0.1+0.4\times 115.34=\$69.21$

The minimum cost of the box is 69.21 dollars.

8 0

3 years ago

Can anyone help me ??<br> i’ve been struggling for the past hour !!

Vladimir [108]

1- y= x/2 + 2
2- y= 3x +1
3- y= x/2 - 2
4- y= 3x - 1

3 0

3 years ago

Read 2 more answers