I'll assume the above equation is: 9 - 7x = 7 - 4(2x+3)
* do distributive multiplication
9 - 7x = 7 - 8x - 12
*move like terms
-7x + 8x = 7 - 12 - 9
* solve for x
x = 7 - 21
x = -14
To check, substitute x by its value -14
9 - 7x = 7 - 4(2x+3)
9 - 7(-14) = 7 -4[2(-14) + 3]
9 + 98 = 7 - 4(-28 +3)
107 = 7 - 4(-25)
107 = 7 + 100
107 = 107
Answer:2
Step-by-step explanation:
There is 2 decimal places because you see how many numbers there are behind each of the decimals when multiplying then add them and that’s how many numbers are behind the decimal in the problem
Answer:
Volume of softball is 29 cubic inches.
Step-by-step explanation:
Here we are given that the diameter of a softball is 3.8 inches.
To find the volume of the softball, we must consider the volume of a sphere formula, which is given by:

We also know that radius is half of diameter.
Radius of softball is half of 3.8 which is 1.9 inches.
Plugging this value in the formula, we have

Volume = 28.73 cubic inches.
Rounding to the nearest whole number:
Volume of softball will be 29 cubic inches.