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Alona [7]
2 years ago
7

Please answer correctly! I will mark you Brainliest!

Mathematics
2 answers:
vovikov84 [41]2 years ago
8 0

Answer:

D. 480

Step-by-step explanation:

V= <u>LWH / 3 </u>

<u />

V = <u>12x12x10 / 3</u>

<u>V= 480</u>

Vinil7 [7]2 years ago
6 0

Answer: V= 40 cm

Step-by-step explanation:

V= 1/3 Bh  

we all know that the height 10 cm and first we should look for the Area of the base which is 12 cm.

now we can solve our problem

V=1/3 B=12 h=10  

hhh they is no 3 square but the answer is C which is 40 cm

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Help please ! I really don’t understand
scZoUnD [109]

Answer:

it's close.

5550 would be the number based on the percentage which is 222÷400=.555 or 55.5%

10000×55.5% is 5550

5 0
2 years ago
Please help me with the problem​
Ivan

Exact Answers:

  • Area = 150.5*sqrt(3)
  • Perimeter = 57+7*sqrt(3)

Approximate Answers:

  • Area = 260.673646539
  • Perimeter = 69.12435565

======================================

Explanation:

Your diagram is 100% correct. Nice work.

To get the area of the trapezoid, we could use the area of a trapezoid formula below:

A = h*(b1+b2)/2

In this case, we have,

  • h = 7*sqrt(3) = height
  • b1 = 18 = base1
  • b2 = 25 = base2

the bases are parallel to each other. The height is always perpendicular to the base. We won't use the "14" at all.

So,

A = h*(b1+b2)/2

A = 7*sqrt(3)*(18+25)/2

A = 7*sqrt(3)*21.5

A = (7*21.5)*sqrt(3)

A = 150.5*sqrt(3)

This is the exact area.

The approximate area is roughly

150.5*sqrt(3) = 260.673646539

The units for the area are in square km, or km^2. Though your teacher said for you not to include the units.

Another way to get the area of the trapezoid is to break the diagram into a rectangle and triangle as you have done so, and then find the area of each sub-piece. Adding the two smaller areas should lead to the result shown above.

-----------------------------------

To get the perimeter, we add up all of the exterior sides. We do not include the right-most vertical line that is 7*sqrt(3) km long because it is inside the figure. The horizontal segment that is 7 km long is part of the "25 km" segment, so we'll ignore that 7.

Adding the four exterior sides leads to:

7*sqrt(3)+18+14+25 = 57+7*sqrt(3)

This value is exact. It approximates to

57+7*sqrt(3) = 69.12435565

The units for the perimeter are in kilometers, and you won't have any exponent over the "km". While your teacher doesn't want the units, it's still handy to know what the units would be.

5 0
2 years ago
Read 2 more answers
Let the joint pdf of X andY be f(x,y) = 12e−4x−3y , x &gt; 0, y &gt; 0.
forsale [732]

Answer:

Step-by-step explanation:

Find attached the solution

3 0
3 years ago
What is 1/6 divided by 2
77julia77 [94]
1/6 divided by 2

Keep, change, flip

1/6 * 1/2 = 1/12

Answer: 1/12
4 0
3 years ago
Read 2 more answers
The length of a rectangle is 4 times its width and the perimeter is 150
grandymaker [24]

Answer:

Y = W = 15 ft.

X= L = 60 ft.

So width is 15 and the length is 60.

6 0
3 years ago
Read 2 more answers
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