Având în vedere expresiile 4a + 7b + 6c și ecuațiile date a + b = 16 și b + 2c = 28.
4a + 7b + 6c pot fi scrise ca
<em>a + a + a + a + b + b + b + b + b + b + b + c + c + c + c + c.</em>
<em>= (a + b) + (a + b) + (a + b) + (a + b) + (b + 2c) + (b + 2c) + (b + 2c).</em>
Înlocuind valorile a + b = 16 și b + 2c = 28, ajungem
(a + b) + (b + 2c) + (b + 2c) + (b + 2c)
= 16 + 16 + 16 + 16 + 28 + 28 + 28
= 64 + 84
= 148.
<h3>
Prin urmare, 4a + 7b + 6c = = 148.</h3>
<u>Answer:</u>
![pqqqqrr = p.q^4.r^2](https://tex.z-dn.net/?f=pqqqqrr%20%3D%20p.q%5E4.r%5E2)
<u>Step-by-step explanation:</u>
Write any number or value in exponential form simply means a numeric form involving exponents.
The exponents for each of the number in a value represent the number of times that number or value appears as a factor.
For example, here in this case, we have one p, 4 q's and 2 r's so we can write it in exponential form as:
![pqqqqrr = p.q^4.r^2](https://tex.z-dn.net/?f=pqqqqrr%20%3D%20p.q%5E4.r%5E2)
Answer:
3
Step-by-step explanation:
![\frac{15}{r} =\frac{15}{5}=3](https://tex.z-dn.net/?f=%5Cfrac%7B15%7D%7Br%7D%20%3D%5Cfrac%7B15%7D%7B5%7D%3D3)
The given pyramid's volume is 40 cubic units.
Step-by-step explanation:
Step 1:
It is given that base areas of the pyramid and the prism are the same. The height is also equal.
The rectangular prism's height is 15 units so as per the given question, the height of the pyramid is also 15 units.
Step 2:
The volume of this pyramid is obtained by multiplying
with the product of the pyramid's length, width, and height.
For the given pyramid, length = 2 units, width = 4 units and the height = 15 units.
The pyramid's volume
=
= 40 cubic units.
So the volume of the given pyramid is 40 cubic units.