Answer:
Step-by-step explanation:
here
total surface area(TSA)= 462 cm²
TSA=3πr²
462 = 3*22/7*r²
462*7=66r²
3,234=66r²
3,234/66=r²
49=r²
√(49=r
r=7
therefore the radia of the hemisphere is 7
now,
volume of hemisphere(V) = (2/3)πr²
V=(2/3)*(22/7)*7²
V=44*7
V=308
Answer:
<em>If </em><em>the </em><em>difference</em><em> </em><em>of </em><em>x </em><em>and </em><em>2</em><em>2</em><em>=</em><em>8</em>
<em>then </em><em>equation</em><em> is</em><em> </em>
<em>X </em><em>-</em><em>2</em><em>2</em><em>=</em><em>8</em>
<em>X=</em><em>2</em><em>2</em><em>+</em><em>8</em>
<em>X=</em><em>3</em><em>0</em>
<em>therefore</em><em> </em><em>now </em><em>we </em><em>put </em><em>the </em><em>value</em><em> of</em><em> x</em><em> in</em><em> the</em><em> </em><em>equation</em>
<em>3</em><em>0</em><em>-</em><em>2</em><em>2</em><em>=</em><em>8</em>
<em>8</em><em>=</em><em>8</em>
Answer:
-1
f (x) = x/2 - 3/2
Step-by-step explanation:
I choose to address this question by actually finding the inverse of f(x) = 2x + 3.
1) replace f(x) with y: y = 2x + 3
2) interchange x and y: x = 2y + 3
3) solve this result for y: 2y = x - 3 , or y = (x - 3)/2. This is the same as the second answer choice. Label this result as
-1
f (x) = x/2 - 3/2
Answer:
-6
Step-by-step explanation:
-6
we can use pythagorean identieis
remember that 
also remember that 
and 
so if we take and divide both sides by 
we get
subtracting 
from both sides
now subsitute into original problem
the answer is -1
