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3 years ago

6

Can you help? Please.

1 answer:

jonny [76]3 years ago

3 0

Answer:

1)What is the first action of the triple jump

2)Complete the listing of track events Sprint 100m, 200m, _________ Middle distance 800m, 1500m, ________ 10,000m, 1k _______

3)Men complete in hurdles of height ____ and while women only compete in hurdles of height _______m

4)How is measurement made of the triple and long

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Can someone please help me with part B?

Ira Lisetskai [31]

Y = - 20x + 100

Slope is -20, y-intercept is 100.

4 0

2 years ago

I need helps ASapP please help look at pictures

vampirchik [111]

Answer:

I can help you but I'm not see it clear

7 0

3 years ago

How much material is needed to construct a triangular tent that is 10 feet wide, 12 feet tall, and 18 feet long with side measur

Ket [755]

The answer is " 768 square feet. ".

Total surface area of a triangular prism = width x height +(sum of sides + width) x length and here;
width = 10
height = 12
sides = 13
length = 18
= (10 x 12) + (13 + 13 + 10) x 18
= 120 + (36 x 18)
= 120 + 648
= 768 square feet.

3 0

2 years ago

A manufacturer wants to make open tin boxes from pieces of tin with dimensions 8 in. by 15 in. by cutting equal squares from the

Stells [14]

Answer:

$\frac{5}{3}$ in

Step-by-step explanation:

Let x be the side of square.

Length of box=8-2x

Width of box=15-2x

Height of box=x

Volume of box= $L\times B\times H$

Substitute the values then we get

Volume of box=V(x)= $(8-2x)(15-2x)x=(15x-2x^2)(8-2x)$

$V(x)=120x-30x^2-16x^2+4x^3$

$V(x)=4x^3-46x^2+120x$

Differentiate w.r.t x

$V'(x)=12x^2-92x+120$

$V'(x)=0$

$12x^2-92x+120=0$

$3x^2-23x+30=0$

$3x^2-18x-5x+30=0$

$3x(x-6)-5(x-6)=0$

$(x-6)(3x-5)=0$

$x-6=0\implies x=6$

$3x-5=0\implies x=\frac{5}{3}$

Again differentiate w.r.t x

$V''(x)=24x-92$

Substitute x=6

$V''(6)=24(6)-92=52>0$

Substitute x=5/3

$V''(5/3)=24(5/3)-92=-52$

Hence, the volume is maximum at x= $\frac{5}{3}$

Therefore, the side of the square , $x=\frac{5}{3}$ in cutout that gives the box the largest possible volume.

5 0

2 years ago

A is an unknown number when you round a to the nearest thousand you get 21,000 when you round a to the nearest hundred you get 2

beks73 [17]

The unknown number a should be 20,500.

4 0

2 years ago