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3 years ago

Quem poder me ajudar, eu agradeço, olhem a imagem a baixo

Mathematics

1 answer:

seropon [69]3 years ago

4 0

Answer:

counfsed so can u write it in english ?

Step-by-step explanation:

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A=1/2h(B+b);A=81,B=8,b=1 what is h

Semenov [28]

Answer:

81=1/2h×9,

81=1/18h

1458h=1

h=1/1458

7 0

3 years ago

Read 2 more answers

If Q = 1, what is the value of the expression 73 - 20q?

Digiron [165]

Answer:

Step-by-step explanation:

73 - 20(1)

73 - 20 = 53

3 0

3 years ago

ROUND YOUR ANSWER TO THE NEAREST TENTH

Alenkasestr [34]

Answer:8 I think, sorry it it is wrong

Step-by-step explanation:

7 0

3 years ago

Emmanuel carves a cone-shaped hollow out of a solid clay cylinder. What is the approximate volume of the solid portion of the cy

bixtya [17]

Answer:

$3.14r^2(h-\frac{1}{3}h_1)$

Step-by-step explanation:

Let h be the cylinders height and r the radius.

-The volume of a cylinder is calculated as:

$V=\pi r^2h$

-Since the cone is within the cylinder, it has the same radius as the cylinder.

-Let $h_1$ be the height of the cone.

-The area of a cone is calculated as;

$V=\pi r^2 \frac{h}{3}\\\\=\frac{1}{3}\pi r^2h_1$

The volume of the solid section of the cylinder is calculated by subtracting the cone's volume from the cylinders:

$V=V_{cy}-V_{co}\\\\=\pi r^2h-\frac{1}{3}\pi r^2 h_1, \pi=3.14\\\\=3.14r^2(h-\frac{1}{3}h_1)$

Hence, the approximate area of the solid portion is $3.14r^2(h-\frac{1}{3}h_1)$

5 0

4 years ago

Find the optimal solution for the following problem. (Round your answers to 3 decimal places.)

Sphinxa [80]

Answer:

x=2.125

y=0

C=19.125

Step-by-step explanation:

To solve this problem we can use a graphical method, we start first noticing the restrictions $x\geq 0$ and $y\geq 0$ , which restricts the solution to be in the positive quadrant. Then we plot the first restriction $8x+10y\leq 17$ shown in purple, then we can plot the second one $11x+12y\leq 25$ shown in the second plot in green.

The intersection of all three restrictions is plotted in white on the third plot. The intersection points are also marked.

So restrictions intersect on (0,0), (0,1.7) and (2.215,0). Replacing these coordinates on the objective function we get C=0, C=11.9, and C=19.125 respectively. So The function is maximized at (2.215,0) with C=19.125.

3 0

3 years ago