Recent questions tagged calculator

Evaluate : $\large\frac{10+2i}{(3+i)(3-i)}\qquad (i=\sqrt{-1})$

asked Jan 11, 2020 by priyanka.clay6

1 answer

A school district is forming a committee to discuss plans for the construction of a new high school. Of those invited to join the committee, $14\%$ are parents of the students, $48\%$ are teachers from the current high school, $28\%$ are school and district administrators and the remaining $8$ individuals are students. How many more teachers were invited to join the committee than school and district administrators ?

asked Jan 11, 2020 by priyanka.clay6

1 answer

A circle with centre $'O'$ lies on the point $(3, -6)$ and has centre $(0,0)$. What can be its radius ?

asked Jan 11, 2020 by priyanka.clay6

1 answer

A tank can be filled by one tap in 4 hours and another tap in 6 hours. How long will it take to fill the tank if both taps are opened together ?

asked Jan 11, 2020 by priyanka.clay6

1 answer

What values of a would make the given quadrilateral a parallelogram in the figure given below ?

asked Jan 11, 2020 by priyanka.clay6

1 answer

A godown measures : $40\; ft \times 25 \;ft \times 15\;ft$. What can be the maximum number of wooden crates each measuring $1.5 \;ft \times 1.25 \;ft \times 0.5 \;ft$ that can be stored in godown ?

asked Jan 11, 2020 by priyanka.clay6

1 answer

Simplify : $(5\sqrt{2})^2 - (6\sqrt{3})^2$

asked Jan 11, 2020 by priyanka.clay6

1 answer

If the $xy$ plane, the graph of $y=x^2-16$ intersects the graph $y=2x$ at the points $(0,0)$ and $(x,y)$. What are the values of $x$ and $y$?

asked Jan 11, 2020 by priyanka.clay6

1 answer

Which of the following ordered pairs $(x,y)$ satisfies the system of inequalities below ? $\qquad y \leq 2x+3$ $\qquad x+y>3$

asked Jan 11, 2020 by priyanka.clay6

1 answer

The total area of a city in Michigan is $102.1$ square miles of which $13.1$ square miles is water. If the city had a population of $621,000$ people in the year $2012,$ which of the following is closest to the population density in people per square mile of land area, of the city at that time ?

asked Jan 11, 2020 by priyanka.clay6

1 answer

During performing the experiment to find out the Latent heat of fusion ice, in a laboratory, when ice began to melt, the temperature remains at $0^{\circ}C$ the liquid water that is formed with latent heat of fusion is also at $0^{\circ}C$. Which of the following graph represents this latent heat of fusion ?

asked Jan 9, 2020 by priyanka.clay6

1 answer

$\large\frac{y^2-5y-24}{9y^2-10y+16}=$

asked Jan 9, 2020 by priyanka.clay6

1 answer

Given: $f(x)=2x^2-3x+5$, determine $f(-3)$

asked Jan 9, 2020 by priyanka.clay6

1 answer

The factors of $x^4+2x^2+9$ are ?

asked Jan 9, 2020 by priyanka.clay6

1 answer

If the sides of a rectangular field are $80$ and $18\; ft$ respectively, what will be the length of its diagonal ?

asked Jan 9, 2020 by priyanka.clay6

1 answer

Jack found a watch which was worth $\$540$ had an offer for sale at $\$450$ during Thanks giving. What percent discount is offered during the sale?

asked Jan 9, 2020 by priyanka.clay6

1 answer

Allen sells stationery items in his shop. Since the sales was going on in a very slow process, he decreased the prices of the products by $10\%$. There by the number of products sold increased by $30\%$. What is the increase in the total revenue ?

asked Jan 9, 2020 by priyanka.clay6

1 answer