Recent questions tagged no calculator

In 2005, Laurey had $\$5000$ in her savings account in $2006$, the amount was $\$6000$. If the percentage increase from $2005$ to $2006$ was the same as the percentage increase from $2006$ to $2007$, how much did Laurey have in her account is 2007 ?

asked Dec 13, 2019 by priyanka.clay6

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Find the value of $(6-2i)(3-5i)$

asked Dec 12, 2019 by priyanka.clay6

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Which of the following is equivalent to $\sqrt{27}+\sqrt{32}?$

asked Dec 12, 2019 by priyanka.clay6

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$\large\frac{4}{x-2} = \large\frac{8}{y}, $ where $x \neq 2$ and $y \neq 0$. What is $y$ in terms of $x$ ?

asked Dec 12, 2019 by priyanka.clay6

1 answer

Right angle triangle $PQR$, right angled at $Q$ has length $PQ$ as 8 feet, and $PR=17\;feet$. What is the length of $QR$ ?

asked Dec 12, 2019 by priyanka.clay6

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In a corporation, $\large\frac{3}{7} $ of the managers are female. If there are 39 female managers, how many managers are there in total ?

asked Dec 12, 2019 by priyanka.clay6

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For non-zero numbers $x,\;y$ and $z$, $3x=4y$ and $4y=3z$. What is $\large\frac{z}{x}?$

asked Dec 12, 2019 by priyanka.clay6

1 answer

If $f(x)=3x^2+5x-6$ and $g(x)=x^2-4$ and $h(x)=f(x).g(x),$ then the degree of $h(x)$ is

asked Dec 12, 2019 by priyanka.clay6

1 answer

If $3+x^2=96,$ the value of $x$ is

asked Dec 12, 2019 by priyanka.clay6

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In the figure below $\overline{AB} $ is the perpendicular bisector of $\overline{CD}$

asked Dec 12, 2019 by priyanka.clay6

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Which of the following polynomial is equal to $(3x^3+4x^2-5x)+ (8x^2+3x-12)$

asked Dec 12, 2019 by priyanka.clay6

1 answer

Solve the inequality

asked Dec 12, 2019 by priyanka.clay6

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What is $x$ if $BE=EC$?

asked Dec 12, 2019 by priyanka.clay6

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In the figure below the small circle is inscribed in a square, which is inscribed in the large circle. What is the ratio of the area of the large circle to that of the small circle.

asked Dec 12, 2019 by priyanka.clay6

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The figure below shows a shed wall. What is the area of the surface off this wall ?

asked Dec 12, 2019 by priyanka.clay6

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What is the equation of the line that passes through $(3,-4) $ and $(4,-4)$

asked Dec 10, 2019 by priyanka.clay6

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What can be the equation of the line whose slope is $\large\frac{1}{7}$ and $y$ intercept $ 6 $?

asked Dec 10, 2019 by priyanka.clay6

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A field is surveyed and found to have 240 wild flowers in a variety of colors : red, yellow, violet and white. There are 60 yellow flowers. One third of the rest of the flowers are white and $40\%$ are red and the rest violet. Which color of flowers are most abundant ?

asked Dec 10, 2019 by priyanka.clay6

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The $10^{th}$ and $100^{th}$ term of the sequence $n^2+3$ are

asked Dec 4, 2019 by priyanka.clay6

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asked Dec 4, 2019 by priyanka.clay6

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It is given that $\Delta ABC \cong \Delta FDE$ in which $AB=5\;cm$, $\angle{A}=80^{\circ},\;\angle{B}=40^{\circ}$ and $FD=5\;cm,\; \angle{E}=?$

asked Dec 4, 2019 by priyanka.clay6

1 answer

At a recent college registration, 100 students were interviewed. 80 students registered for Mathematics course, 14 for history course and 5 for both. What is the probability that the student has registered only for history ?

asked Dec 4, 2019 by priyanka.clay6

1 answer

In the figure shown below TP and TQ are tangents to the circle with centre O and radius $5 \;cm$. If $\angle{QTP}=65^{\circ}$, calculate $\angle{POQ}$

asked Dec 4, 2019 by priyanka.clay6

1 answer

Simplify : $ \large\frac{\sqrt{x^6(y^3)^{-2}}}{(x^3y)^{-2}}$

asked Dec 4, 2019 by priyanka.clay6

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If $D,\;E $ and $F$ are the mid points of the sides $AB, \;BC$ and $CA$ of an equilateral triangle $ABC$ , then $\Delta DEF$ is a _________ triangle.

asked Dec 3, 2019 by priyanka.clay6

1 answer

Which of the following is equal to $3^{4/3}$.

asked Dec 3, 2019 by priyanka.clay6

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A quadrilateral which has exactly one pair of parallel sides is called

asked Dec 3, 2019 by priyanka.clay6

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The total surface of a cone, whose radius is $\dfrac{r}{2}$ and slant height $2l$ is

asked Dec 3, 2019 by priyanka.clay6

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If $x^2+y^2=a$ and $xy=6b$, then which of the following is equivalent to $3a-2b ?$

asked Dec 3, 2019 by priyanka.clay6

1 answer

Which of the following is an example of a function whose graph in the $xy-$ plane has no intercepts ?

asked Dec 3, 2019 by priyanka.clay6

1 answer

Kathy has two summer jobs. She works as a beautician, which pay $\$10 $ per hour and she works at the billing counter for a supermarket, which pays her $\$10.50$ per hour. She can work no more than 20 hours per week, but she wants to earn at least $\$250$ per week. Which of the following inequalities represents this situation in terms of $x$ and $y$ where $x$ is the number of hours, she works as a beautician and $y$ the number of hours, she works for the super market ?

asked Dec 3, 2019 by priyanka.clay6

1 answer

In the equation given below, $K$ is a constant, if $x=6$, what is the value of $K$ ? <br> $\qquad \qquad \sqrt{K^2+9} -x =0$

asked Dec 3, 2019 by priyanka.clay6

1 answer

$\qquad \qquad h = 2a+20.5 $ <br>A Pediatrician uses the model above to estimate the height $h$ of a boy, in inches, in terms of the boy's age 'a' in years, between the ages of 5 and 10. Based on the model, what is the estimated increase in inches of a boy's height each year ?

asked Dec 3, 2019 by priyanka.clay6

1 answer

What can be the nature of the roots for the equation $x^2-4x+6$ ?

asked Dec 3, 2019 by priyanka.clay6

1 answer

Simplify $(x^{4n-m})\large(\frac{1}{x^3})^{m+n}$

asked Dec 3, 2019 by priyanka.clay6

1 answer

The rational form of $\large\frac{\sqrt[-3]{512}}{\sqrt[5]{-1024}}$

asked Dec 3, 2019 by priyanka.clay6

1 answer

If $\large\frac{3x-1}{b}=4$ and $b=2$, what is the value of $x$ ?

asked Dec 3, 2019 by priyanka.clay6

1 answer

If $i=\sqrt{-1}$, then evaluate $(7-3i)(7+3i)$

asked Dec 3, 2019 by priyanka.clay6

1 answer

In a Rhombus $PQRS$, if $PQ=PR$, then $\angle{PQR} =$

asked Nov 28, 2019 by priyanka.clay6

2 answers

$(sx+3)(tx-3)=4x^2+ux-9$ for all the values of $x$ and $s+t=4$, what are the possible values of $u$ ?

asked Nov 28, 2019 by priyanka.clay6

1 answer

If $4x-y=16,$ what is the value of $\large\frac{16^x}{2^y}$?

asked Nov 28, 2019 by priyanka.clay6

1 answer

A balloon is catapulted into the air from the top of a building. The height $h(t)$ in meter of the ballon after $'t'$ seconds is $h(t) = -5t^2 + 30t +10$. When will the balloon reach a height of 30 m ?

asked Nov 27, 2019 by priyanka.clay6

1 answer

A water is catapulted into the air from the top of a building. The height $h(t)$ in meter of the ballon after $'t'$ seconds is $h(t) = -5t^2 + 30t +10$ <br> <br> QUESTION : What are the range of this function ?

asked Nov 27, 2019 by priyanka.clay6

1 answer

If $5x-19<16$, then what can be the value of $x$?

asked Nov 27, 2019 by priyanka.clay6

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Sarah is 92 years old and she graduated from high school in 1930 at the age of 17. Her graduating class had a half century reunion. During what year was it held ?

asked Nov 27, 2019 by priyanka.clay6

1 answer

The roots of the equation $2x^2 - 7x-4=0 $

asked Nov 27, 2019 by priyanka.clay6

1 answer

Volume $'V'$ of a sphere whose radius is $r$ is given by $V = \frac{4}{3} \pi r^3$. Then the radius of the sphere in terms of $V$ will be

asked Nov 27, 2019 by priyanka.clay6

1 answer

A chef wants to wrap a string around a giant wheel of cheese to support a paper label. The wheel of cheese has a diameter of 30 inches. How much string is needed to go around the wheel of cheese exactly once ?

asked Nov 27, 2019 by priyanka.clay6

1 answer

The next term of the given sequence $17, 18, 22, 31, 47, ....$ is

asked Nov 27, 2019 by priyanka.clay6

1 answer

Jackie has a piece of land which was designed as shown in the figure. He wants to lawn the shaded area. $O$ is the center of the circle whose diameter is 4m and $OABC$ is a square. If the shaded area is $\frac{1}{3} $rd of the area of the square, then the side of the square is

asked Nov 27, 2019 by priyanka.clay6

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