Replace the x with 2: f(2)=2*2+7=4+7=11
replace the x with 7: f(7)=2*7+7=14+7=21
Surface area of a square pyramid is the area of the base + 4 times the area of one of the slanted sides.
Area of base = side length * side length
Area of side = (1/2) * side length * slant height
Don't forget that you have to multiply the area of the side by 4!
Step 1: 12 x 12 = 144
Step 2: 12 x 20 = 240 divided by 2 = 120
Step 3: 144 + 120 x 4
Answer:I think 11
Step-by-step explanation: 11 because one can do no more than 11 packages so the most potential one most be 11 since it can't do 18 but the 18 can do 11 and the max of the other one is 11
Answer:
End fraction right brace
Step-by-step explanation:
I really hope I helped GL <33!
Answer:
B) 
Step-by-step explanation:
- To start things off, lets convert any <em>mixed numbers</em> like
into <em>improper fractions</em>. In this case as an improper fraction is 
.
- Now let's multiply
by . When multiplying fractions, all you need to do is multiply the numerators and denominators separately. Your final answer should be 
. - *Note: a <em>negative </em>times a <em>negative </em>is a <em>positive</em>, so that's why we now have an even number in front of
instead of a negative number.
- Now we want to isolate , so we'll have to divide
by 
, but dividing these two fractions seems like a pain. To make things a bit easier, let's turn our improper fraction into a whole number. To change this improper fraction into a whole number, we should ask ourselves what times 
is equal to 
? In this case, the answer is 3, so is actually the same thing as the whole number 
. - *Note: In general, keeping fractions as either improper fractions or whole numbers will make doing math easier. Avoid mixed numbers like when trying to do math and simply change improper fractions into mixed numbers once you have your final solution.
- Now divide by . Think of it as multiplying the denominator of by .
