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MissTica
1 year ago
15

Maya wants to make a pyramid out of plaster for her social studies class. How much plasterdoes she need to make a rectangular py

ramid with the dimensions shown below?A11 in. +6 in.8 in.+Type the answer in the box.cubic inches

Mathematics
1 answer:
amid [387]1 year ago
4 0

The volume of the pyramid can be determined as,

V=\frac{1}{3}\times area\text{ of base}\times height

Substituting the given values,

\begin{gathered} V=\frac{1}{3}\times(8in\times6in)\times11in \\ =176in^3 \end{gathered}

Thus, the 176 cubic inches of plaster is required.

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Help me with my math plz
Gwar [14]
Let's separate this shape into three parts. A smaller rectangle at the top, and one at the bottom, and a bigger rectangle in the middle.

The smaller rectangle at the top:

The equation to find the area of a rectangle is
(a = area, l = lenght, w = width)

a = l · w
Put in the values
a = 18 · 3
a = 54

Since the smaller rectangle at the bottom has the same length and width, it has the same area. 

The bigger rectangle in the middle:

a = l · w
Put in the values
a = 8 · 9
a = 72

Now add all of the areas together to get the answer!

72 + 54 + 54 = 180

The answer is 180 :)

Hopefully this helps! If you have any more questions or don't understand, feel free to DM me, and I'll get back to you ASAP! :)
5 0
3 years ago
Read 2 more answers
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egoroff_w [7]

Answer:

4 triangles and a square

8 0
3 years ago
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5÷5/6<br><br>6÷3/7<br><br>8÷5/8<br><br>5÷15/8<br> help please​
charle [14.2K]
  1. 6
  2. 14
  3. 12 4/5
  4. 2 2/3

Just division, fairly simple with or without a calculator.

3 0
3 years ago
Greta bought 3 lb and 4 oz of peanuts and shared 1 lb 12 oz with the class. what is the weight of the remaining peanuts ?
makkiz [27]

Answer:

1lb 8 oz

Step-by-step explanation:

Take 3 lbs and separate it into 48oz + 4 oz = 52 oz.

Same with the 1 lb 12 oz. 16 oz + 12 oz = 28.

Subtract 28 from 52 = 24 oz = 1 lb  8 oz.

Hope this helps.

5 0
3 years ago
A phase modulator produces a maximum phase shift of 45 degrees. The modulation frequency range is 300 to 4000 Hz. What is the ma
sergejj [24]

Answer:

Maximum frequency deviation is 2616.29509 Hz

Maximum frequency deviation=(4000-3000)cos45

Max frequency deviation=2616.29509 Hz

8 0
3 years ago
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