First flip the 2nd number. (denominator becomes numerator and vice versa) then multiply the numerators and multiply the denominators. that's the answer.
slope = 13
the slope of the tangent is f'( 4)
given f(x) = x² + 5x , then f'(x) = 2x + 5
and f'(4) = ( 2 × 4 ) + 5 = 13
Answer:
Lisa makes $262.50 of profit if she sells 50 watch bands
Step-by-step explanation:
First we need to find out how much 1 watch band is.
To find that we can do $105 / 20, which is $5.25 dollars
Since she sells all 50 watchbands we can multiply $5.25 dollars by 50.
Therefore 50 * $5.25 is $262.50.
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Answer:
x = 3
Step-by-step explanation:
Step 1: Write out equation
16 = 9x + 4 - 5x
Step 2: Combine like terms
16 = 4x + 4
Step 3: Subtract 4 on both sides
12 = 4x
Step 4: Divide both sides by 4
3 = x
Step 5: Rewrite
x = 3
Let's use an example. Start with 10.
If we move the decimal 3 places to the right, we get 10,000.
So from 10 to 10,000, we multiplied by 1,000.
Let's try it with 5 now:
If we move the decimal 3 places to the right, we get 5,000.
The same holds true. Therefore, it is the same as multiplying the number by 1,000 or B.