Answer:
The number is 5/9
Step-by-step explanation:
Let
x ---> the number
we know that
The number multiplied by 9 plus 3 must be equal to 8
so
The linear equation that represent this problem is
![9x+3=8](https://tex.z-dn.net/?f=9x%2B3%3D8)
solve for x
subtract 3 both sides
![9x=8-3\\9x=5](https://tex.z-dn.net/?f=9x%3D8-3%5C%5C9x%3D5)
Divide by 9 both sides
![x=\frac{5}{9}](https://tex.z-dn.net/?f=x%3D%5Cfrac%7B5%7D%7B9%7D)
A cube has 6 faces.
The area of one face is 12 feet^2
Multiply the area of one face by 6
The area of the whole cube would be 12 x 6 sides = 72 feet^2
The answer is D.
Answer:
You can use multiplication to check your division answer this way.
Do the division problem.
Multiply the quotient times the divisor.
If there is a remainder, add it to the multiplication product.
Compare this answer to the dividend. They should be the same number (630 = 630).
Step-by-step explanation:
You can use multiplication to check your division answer this way.
Do the division problem.
Multiply the quotient times the divisor.
If there is a remainder, add it to the multiplication product.
Compare this answer to the dividend. They should be the same number (630 = 630).
Answer:
![\boxed{2\cos^2\theta}](https://tex.z-dn.net/?f=%5Cboxed%7B2%5Ccos%5E2%5Ctheta%7D)
Step-by-step explanation:
![\cot^2\theta \sin^2\theta+\cos^2\theta](https://tex.z-dn.net/?f=%5Ccot%5E2%5Ctheta%20%5Csin%5E2%5Ctheta%2B%5Ccos%5E2%5Ctheta)
![\dfrac{1}{\tan^2 \theta} \sin^2\theta+\cos^2\theta](https://tex.z-dn.net/?f=%5Cdfrac%7B1%7D%7B%5Ctan%5E2%20%5Ctheta%7D%20%5Csin%5E2%5Ctheta%2B%5Ccos%5E2%5Ctheta)
![\dfrac{1}{\dfrac{\sin^2\theta}{\cos^2\theta} } \sin^2\theta+\cos^2\theta](https://tex.z-dn.net/?f=%5Cdfrac%7B1%7D%7B%5Cdfrac%7B%5Csin%5E2%5Ctheta%7D%7B%5Ccos%5E2%5Ctheta%7D%20%7D%20%5Csin%5E2%5Ctheta%2B%5Ccos%5E2%5Ctheta)
![\dfrac{\cos^2\theta}{\sin^2\theta } \sin^2\theta+\cos^2\theta](https://tex.z-dn.net/?f=%5Cdfrac%7B%5Ccos%5E2%5Ctheta%7D%7B%5Csin%5E2%5Ctheta%20%7D%20%5Csin%5E2%5Ctheta%2B%5Ccos%5E2%5Ctheta)
![\cos^2\theta+\cos^2\theta](https://tex.z-dn.net/?f=%5Ccos%5E2%5Ctheta%2B%5Ccos%5E2%5Ctheta)
![2\cos^2\theta](https://tex.z-dn.net/?f=2%5Ccos%5E2%5Ctheta)
Answer:
Step-by-step explanation:
Volume of the cube = s^3
s = 9cm
V = 9 * 9 * 9
V = 729 cm^3
d = mass / volume
d = 3645 / 729
d = 5 grams / cm^3