There was $135 in Roland's bank account after the two-month period.
Step-by-step explanation:
Step 1:
Roland out $180 in his account at the beginning of July. This reduced by 25% over the next two months.
We need to determine how much 25% of $180 is. To do so we convert 25% into a fraction and multiply with 180.
25% of $180 
So an amount of $45 reduced over two months.
Step 2:
To calculate the money Roland has in his account after two months, we subtract the amount reduced from the amount of money in his account at the beginning of July.
The amount of money in his bank account after the two-month period 
So there was $135 in Roland's bank account after the two-month period.
Answer:
9.5 in
Step-by-step explanation:
The receiver is placed at the focus of the parabola at a distance of 1/4a from the vertex. Here that would be 1/(4*(1/38)) or 38/4 inches or 9.5 in
Answer:
Step-by-step explanation:
= 4 + (-2)/ -3 + 3
= 4 - 2/ -3 + 3
= 2/0 If the denominator is 0, the value is undefined.
Answer:
57 inches
Step-by-step explanation:
The height, width, and diagonal of the TV screen form a right triangle.
Use the pythagorean theorem, a² + b² = c², and solve for c, the hypotenuse/diagonal of the TV.
a² + b² = c²
30² + 48² = c²
900 + 2304 = c²
3204 = c²
56.6 = c
Round this to the nearest inch:
56.6
= 57
So, the diagonal of the TV screen is 57 inches
Answer:
0.6988
Step-by-step explanation:
Given that the number of people who use the ATM at night outside your local bank branch can be modeled as a Poisson distribution.
Let X be the number of customers arriving between 10 and 11 am.
X is Poisson with mean= 1.2
Required probability
= the probability that in the hour between 10 and 11 PM at least one customer arrives
= P(X≥1)
=1-P(X=0)
=1-0.3012
= 0.6988
