Recent questions tagged calculator

Equation of a line is given by $y=ax+b,$ if a line is drawn parallel to this line,which of the following can be its equation.

asked Dec 19, 2019 by priyanka.clay6

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Find the value of $k$ for which the equation $2x^2-(k-1)x+8=0$ will have real and equal roots.

asked Dec 19, 2019 by priyanka.clay6

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Rhoda can type 600 words in 15 minutes.She has to complete typing a article which has 1080 pages. How long will she take to complete a article ?

asked Dec 19, 2019 by priyanka.clay6

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If the figure above $AB \parallel DC. $ Find the value of $x$.

asked Dec 19, 2019 by priyanka.clay6

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If $i=\sqrt{-1}$, then evaluate $(3i+9)(2i-8)$

asked Dec 19, 2019 by priyanka.clay6

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$(tx+9)^2=81$ where $t$ is a constant. If $x=-2$ is a possible solution to the equation, what is the possible value of $t$ ?

asked Dec 19, 2019 by priyanka.clay6

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Ryan has a corn field which is shaped as showns below in the figure. If $\angle{DAB}=90^{\circ}$ Find the area of the field.

asked Dec 19, 2019 by priyanka.clay6

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The graph above shows the size of shoes worn by different students belonging to a school. What is the total no. of the students in the school ?

asked Dec 19, 2019 by priyanka.clay6

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The graph above shows the size of shoes worn by different students belonging to a school. What is the difference in the number of students wearing shoe number 7 and shoe number 5 ?

asked Dec 19, 2019 by priyanka.clay6

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The graph below shows the size of shoes worn by different students belonging to a school. Which shoes number is worn by the minimum number of students ? Also give its numbers

asked Dec 19, 2019 by priyanka.clay6

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Which of the following ordered pairs $(x,y)$ satisfies the inequality $5x-3y<4 ?$ $\qquad (i) (1,1) \qquad (ii) (2,5) \qquad (iii) (3,2)$

asked Dec 19, 2019 by priyanka.clay6

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Which of this is equivalent to the one given below ? $\qquad(4x^3+3x^2-2) - (2x^2-x+1)$

asked Dec 19, 2019 by priyanka.clay6

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A market researcher selected 200 people at random from a group of people who indicated that they liked a certain fruit drink which was artificially flavored . The 200 people were given a sample of drink and then asked whether they liked or disliked of those surveyed $95\%$ said they disliked the drink. Which of the following inference can appropriately be drawn from this survey result ?

asked Dec 19, 2019 by priyanka.clay6

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The length of the minute hand of a clock is $21\;cm.$ What will be the area swept by the minute hand in 5 minutes ?

asked Dec 19, 2019 by priyanka.clay6

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The roof of a building which in the form of a rectangle has dimensions $22\;m \times 20\;m$ drains the rain water into cylindrical vessels having diameter of base $2\;m$ and height $3.5\;m.$ If the rain water collected from the roof just fills the cylindrical vessel, then the rainfall in $cm$ is

asked Dec 19, 2019 by priyanka.clay6

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What is the probability that a number selected at random from the numbers $1,2,3,2,3,4,4,3,4,4$ will be their average ?

asked Dec 19, 2019 by priyanka.clay6

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A rental taxi in a city charges $\$10$ for first mile and adds $\$4 $ per mile for subsequent distance covered which of the following graph represents this ?

asked Dec 19, 2019 by priyanka.clay6

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The linear equation that converts Farenheit (F) to Celcius (C) is given by the relation $ \qquad \qquad C = \large\frac{5F-160}{9}$ If the temperature is $35^{\circ}C$, what is the temperature in Farenheit ?

asked Dec 18, 2019 by priyanka.clay6

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$\qquad 5x-10y > 25$ Which of the following inequalities is equivalent to the inequality above :

asked Dec 18, 2019 by priyanka.clay6

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A cylinder, cone and a sphere are of the same radius and same height. Find the ratio of their curved surface areas.

asked Dec 18, 2019 by priyanka.clay6

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If $y=kx$ where $k$ is a constant and $y=81$, when $x=3$, what is the value of $y$ when $x=5$ ?

asked Dec 18, 2019 by priyanka.clay6

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The distance-time graph above, shows the position of an object at different times. Calculate the speed of the object as it moves from A to B.

asked Dec 18, 2019 by priyanka.clay6

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In a right triangle, one angle measures $x^{\circ}$ where $\sin x = \large\frac{4}{5},$ what is the $\cos (90^{\circ}-x).$ ?

asked Dec 18, 2019 by priyanka.clay6

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If $7x+9y=42$ and $9x+7y=22$, then find the value of $x+y$

asked Dec 18, 2019 by priyanka.clay6

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Maria has a swimming pool which is in the shape of a circle of radius 8 cm. She wants to lawn around it as shown in the figure. Find the area of the lawn.

asked Dec 18, 2019 by priyanka.clay6

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If $7 \sin^2 \theta + 3 \cos^2 \theta = 4,$ then $\tan \theta=$

asked Dec 18, 2019 by priyanka.clay6

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asked Dec 17, 2019 by priyanka.clay6

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If the lines $3x+2y+7=0$ and $4x+ky+18=0$ intersect at a point, then the values of $k$ is

asked Dec 17, 2019 by priyanka.clay6

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If one zero of $3x^2-4x+ p$ is reciprocal to the other, then find the value of $p$

asked Dec 17, 2019 by priyanka.clay6

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In a parallelogram $PQRS,\; \angle {P}- \angle{R} $ is

asked Dec 16, 2019 by priyanka.clay6

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Line $m$ has the equation $y=3x+5$ and line $n$ has the equation $y=2x+(k-1).$ If these two lines intersect t the point $(0,1)$. What is the value of $k$ ?

asked Dec 13, 2019 by priyanka.clay6

1 answer

The deepest mine in the world, East Rand mine in South Africa, reaches $3585 \;m$ into earth's crust. Another African mine western Deep is being deepened to $4100\;m$. Suppose the temperature at the top of the mine shaft is $11^{\circ}c$ and that increases at a rate of $0.015^{\circ}c$ at you descend. QUESTION : Represent the temperature in a mine shaft with a function.

asked Dec 12, 2019 by priyanka.clay6

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The deepest mine in the world, East Rand mine in South Africa, reaches $3585 \;m$ into earth's crust. Another African mine western Deep is being deepened to $4100\;m$. Suppose the temperature at the top of the mine shaft is $11^{\circ}c$ and that increases at a rate of $0.015^{\circ}c$ at you descend. QUESTION : What is the temperature at the bottom of each mine.

asked Dec 12, 2019 by priyanka.clay6

1 answer

Mary can type 85 pages in one hour. At this stage how many pages can she type in 12 minutes?

asked Dec 11, 2019 by priyanka.clay6

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$(a^{4})^{1/4} \;(a^6)^{1/6} = a^n$ then $n =$

asked Dec 11, 2019 by priyanka.clay6

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If $A, \;B,\;C$ and $D$ lie on the same straight line and if $AC = 2CD=3BD$, What is the value of the ratio $\large\frac{BC}{CD} ?$

asked Dec 11, 2019 by priyanka.clay6

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What is $i^{128}$?

asked Dec 11, 2019 by priyanka.clay6

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In the figure given, if $m||n,$ what is the value of $y$?

asked Dec 11, 2019 by priyanka.clay6

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If $x=\large\frac{1}{3}(x-y)$, what is expression of $x$ in terms of $y$?

asked Dec 11, 2019 by priyanka.clay6

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If $f(x) = x+6,$ for what value of $x$ does $f(4x)=f(x+4)?$

asked Dec 11, 2019 by priyanka.clay6

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Marc can husk at least 12 dozen ears of corn per hour and at most 18 dozen ears of corn per hour. Based on this information, what is a possible amount of time, in hours , that it could take for him to husk 72 dozen ears of corn ?

asked Dec 11, 2019 by priyanka.clay6

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One chord of a circle is known to be 10 cm. The radius of this circle must be

asked Dec 11, 2019 by priyanka.clay6

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If the difference of mode and median of a data is 24, then the difference of median and mean is

asked Dec 11, 2019 by priyanka.clay6

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Tickets numbered 1 to 20 are mixed up and then a ticket is drawn at random. What is the probability that the ticket drawn has a number which is a multiple of 3 or 5?

asked Dec 11, 2019 by priyanka.clay6

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Find the next term of given sequence .. $16, 17, 21, 30, 46, ....$

asked Dec 11, 2019 by priyanka.clay6

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If $f(x)=x^3+1$ then what is $f(2)+f(-2)$ ?

asked Dec 11, 2019 by priyanka.clay6

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What is the solution $(x,y)$ to the system of equation given below ? $\qquad x-2y=5$ $\qquad 3x+y=-2$

asked Dec 10, 2019 by priyanka.clay6

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What can be the equation for the graph given below ?

asked Dec 10, 2019 by priyanka.clay6

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If $m^2-4n^2=32$ and $m+2n=8$, what is the value of $m-2n$ ?

asked Dec 10, 2019 by priyanka.clay6

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If $a=0.999,$ which of the following is less than $a$?

asked Dec 10, 2019 by priyanka.clay6

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