Answer:
3a^2- 5b =32
6ab^2=-192
Step-by-step explanation:
3a^2- 5b =
Let a = -2 and b=4
3(-2)^2 -5(-4)
3*4 -(-20)
12 +20
32
6ab^2=
6(-2)*(4)^2
6(-2)*16
-192
Answer:
(4 x 14) + 10 = 66
Step-by-step explanation:
(4 x 14) + 10 = ?
56 + 10 = 66
Answer: 15.7 (1 decimal place)
Step-by-step explanation:
The formula for the circumference of a circle is d(diameter) x π(pi).
The diameter of this is 5 so you would do 5xπ=15.7 (1 decimal place)
To answer this you have to use Pythagoras's theorem: a^2 + b^2 = c^2
Put in the values:
5^2 + 15^2 = c^2
Simplify it:
25 + 225 = c^2
Simplify again:
250 = c^2
Square root both sides:
15.8113883008 = c
So the ramp is:
15.8113883008 feet
Now round the number:
15.8ft
The above is the answer :)
(btw sorry in advance if you've spotted a mistake)
Answer:
the volume of rectangular prism is 11 ft.
the volume of triangle prism is 7 ft.