Answer:
Right angle, and angle IJK
Step-by-step explanation:
Answer:the awnser is A i beleive not 100% sure
Step-by-step explanation:
Answer:
No, it's not
Step-by-step explanation:
Answer:
![\frac{225}{16} cm/s](https://tex.z-dn.net/?f=%5Cfrac%7B225%7D%7B16%7D%20cm%2Fs)
Step-by-step explanation:
We are given that
![\frac{dV}{dt}=25cm^3/s](https://tex.z-dn.net/?f=%5Cfrac%7BdV%7D%7Bdt%7D%3D25cm%5E3%2Fs)
Side of base=4 cm
l=w=4 cm
Height,h=12 cm
We have to find the rate at which the water level rising when the water level is 4 cm.
Volume of pyramid=![\frac{1}{3}lwh=\frac{1}{3}l^2h](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B3%7Dlwh%3D%5Cfrac%7B1%7D%7B3%7Dl%5E2h)
![\frac{l}{h}=\frac{4}{12}=\frac{1}{3}](https://tex.z-dn.net/?f=%5Cfrac%7Bl%7D%7Bh%7D%3D%5Cfrac%7B4%7D%7B12%7D%3D%5Cfrac%7B1%7D%7B3%7D)
![l=\frac{1}{3}h](https://tex.z-dn.net/?f=l%3D%5Cfrac%7B1%7D%7B3%7Dh)
Substitute the value
![V=\frac{1}{27}h^3](https://tex.z-dn.net/?f=V%3D%5Cfrac%7B1%7D%7B27%7Dh%5E3)
Differentiate w.r.t t
![\frac{dV}{dt}=\frac{3}{27}h^2\frac{dh}{dt}](https://tex.z-dn.net/?f=%5Cfrac%7BdV%7D%7Bdt%7D%3D%5Cfrac%7B3%7D%7B27%7Dh%5E2%5Cfrac%7Bdh%7D%7Bdt%7D)
Substitute the values
![25=\frac{1}{9}(4^2)\frac{dh}{dt}](https://tex.z-dn.net/?f=25%3D%5Cfrac%7B1%7D%7B9%7D%284%5E2%29%5Cfrac%7Bdh%7D%7Bdt%7D)
![\frac{dh}{dt}=\frac{25\times 9}{16}=\frac{225}{16} cm/s](https://tex.z-dn.net/?f=%5Cfrac%7Bdh%7D%7Bdt%7D%3D%5Cfrac%7B25%5Ctimes%209%7D%7B16%7D%3D%5Cfrac%7B225%7D%7B16%7D%20cm%2Fs)
Answer:
a) en cuántas filas la suma es igual?
2+7+2+0+2=13
0+1+6+1+0=8
2+0+2+8+1=13
es igual en dos filas la primera y la última
b)en cuántas columnas la suma es igual?
2+0+2=4
7+1+0=8
2+6+2=8
0+1+8=9
2+0+1=3
es igual en dos columnas la segunda y la tercera
listo :)
Step-by-step explanation: