<h3>a) 
</h3><h3>■Dividing a positive and a negative equals a negative: (+)÷(-)=(-)</h3><h2>
</h2><h3>■To divide by a fraction, multiply by the reciprocal of that fraction</h3><h2>
</h2><h3>■Multiply the fractions</h3><h2>
</h2><h3>Hence, Quotient =</h3><h3>b) 
</h3><h3>■Convert the decimals into a fractions</h3><h2>
</h2><h3>■Dividing a positive and a negative equals a negative: (+)÷(-)=(-)</h3><h2></h2><h3>■To divide by a fraction, multiply by the reciprocal of that fraction</h3><h2></h2><h3>■Multiply the fractions</h3><h2></h2><h3>Hence, Quotient is </h3><h3>c)</h3><h3>■To divide by a fraction, multiply by the reciprocal of that fraction</h3><h2></h2><h3>■Multiply the fractions</h3><h2></h2><h3>Hence, The Quotient is </h3>
A jar contains 21 brown and 19 blue marbles. A marble is drawn at random. What is the theoretical probability of drawing a blue
1 answer:
You might be interested in
Answer:
Step-by-step explanation:
If two lines are perpendicular, they create 4 90° angles. Meaning, in this case, that m<DBC = 90 and m<DBA = 90.
We're given that m<DBE = 2x - 1 and that m<CBE = 5x - 42.
The sum of angles DBE and CBE = m<DBC = 90°
We can add the two angles and set it equal to 90 to find x