# Recent questions tagged length

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Determine the image distance and image height for a 4.0-cm tall object placed 12.0-cm from a converging having a focal length of 18.0 cm.
A 2.85-cm diameter coin is placed a distance of 31.4 cm from a diverging lens that has a focal length of-11.6 cm. Determine the image distance and diameter of the image. What is the OST of the image?A 2.85-cm diameter coin is placed a distance of 31.4 cm from a diverging lens that has a focal length of-11.6 cm. Determine the image distance and dia ...
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What is the length of AB?
What is the length of AB? What is the length of AB? &nbsp; &nbsp; ...
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$P K$ and $K N$ are tangents to circle centre $M$. If $\hat{N}_{1}=24^{\circ}$, determine the size of $P \hat{K} N$.
$P K$ and $K N$ are tangents to circle centre $M$. If $\hat{N}_{1}=24^{\circ}$, determine the size of $P \hat{K} N$. $P K$ and $K N$ are tangents to circle centre $M$. If $\hat{N}_{1}=24^{\circ}$, determine the size of $P \hat{K} N$. ...
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Prove that $T P K$ is a tangent to circle centre $O$ and radius of $8 \mathrm{~cm}$, if $O K=17 \mathrm{~cm}$ and $P K=15 \mathrm{~cm} .$
Prove that $T P K$ is a tangent to circle centre $O$ and radius of $8 \mathrm{~cm}$, if $O K=17 \mathrm{~cm}$ and $P K=15 \mathrm{~cm} .$ Prove that $T P K$ is a tangent to circle centre $O$ and radius of $8 \mathrm{~cm}$, if $O K=17 \mathrm{~cm}$ and $P K=15 \mathrm{~cm} .$ ...
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Prove that $T P K$ is a tangent to circle centre $O$ and radius of $8 \mathrm{~cm}$, if $O K=17 \mathrm{~cm}$ and $P K=15 \mathrm{~cm}$.
Prove that $T P K$ is a tangent to circle centre $O$ and radius of $8 \mathrm{~cm}$, if $O K=17 \mathrm{~cm}$ and $P K=15 \mathrm{~cm}$. Prove that $T P K$ is a tangent to circle centre $O$ and radius of $8 \mathrm{~cm}$, if $O K=17 \mathrm{~cm}$ and $P K=15 \mathrm{~cm}$. ...
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Given circle centre $O$ with tangent $Z Y U$ and $M N=F G$. If $\hat{H}=18^{\circ}$ determine the size of $\hat{Y}_{2}$.
Given circle centre $O$ with tangent $Z Y U$ and $M N=F G$. If $\hat{H}=18^{\circ}$ determine the size of $\hat{Y}_{2}$. Given circle centre $O$ with tangent $Z Y U$ and $M N=F G$. If $\hat{H}=18^{\circ}$ determine the size of $\hat{Y}_{2}$. &nbsp; ...
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Given circle $G H J K$ with $G M \perp H J$ and $G L \perp L J . \hat{G}_{3}=24^{\circ}$
Given circle $G H J K$ with $G M \perp H J$ and $G L \perp L J . \hat{G}_{3}=24^{\circ}$ Given circle $G H J K$ with $G M \perp H J$ and $G L \perp L J . \hat{G}_{3}=24^{\circ}$ &nbsp; a) Is quadrilateral $G L J M$ a cycl ...
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Given circle centre $O$ with $\hat{C}=36^{\circ}$
Given circle centre $O$ with $\hat{C}=36^{\circ}$ Given circle centre $O$ with $\hat{C}=36^{\circ}$ &nbsp; Calculate the values of angles: $\hat{O}_{1}, \hat{A}$ and $\hat{B}$. ...
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In circle $O$ with diameter $A C, D C=A D$ and $\hat{B}_{2}=56^{\circ}$. Determine the size of $D \hat{A} B$
In circle $O$ with diameter $A C, D C=A D$ and $\hat{B}_{2}=56^{\circ}$. Determine the size of $D \hat{A} B$ In circle $O$ with diameter $A C, D C=A D$ and $\hat{B}_{2}=56^{\circ}$. Determine the size of $D \hat{A} B$ &nbsp; ...
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Determine the resistance of a 600 centimeters copper wire with a radius of 2 meters?
Determine the resistance of a 600 centimeters copper wire with a radius of 2 meters?Determine the resistance of a 600 centimeters copper wire with a radius of 2 meters? ...
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A candle is placed at a distance of $30 \mathrm{~cm}$ from a converging lens having a focal length of $10 \mathrm{~cm}$.
A candle is placed at a distance of $30 \mathrm{~cm}$ from a converging lens having a focal length of $10 \mathrm{~cm}$.A candle is placed at a distance of $30 \mathrm{~cm}$ from a converging lens having a focal length of $10 \mathrm{~cm}$. (a) At what distance fro ...
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True/False: Collinear vectors with the same length are equal
True/False: Collinear vectors with the same length are equalTrue/False: Collinear vectors with the same length are equal ...
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What is a norm of a vector?
What is a norm of a vector?What is a norm of a vector? ...
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How do I calculate the length between two points in $R^2$ and $R^3$?
How do I calculate the length between two points in $R^2$ and $R^3$?How do I calculate the length between two points &nbsp;in $R^2$ and $R^3$? ...
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One year on July 1 in northern Canada I was camping and the sun set around 11 PM. A year later in Hawaii the sun set at around 7 PM.
One year on July 1 in northern Canada I was camping and the sun set around 11 PM. A year later in Hawaii the sun set at around 7 PM.One year on July 1 in northern Canada I was camping and the sun set around 11 PM. A year later in Hawaii the sun set at around 7 PM. This led to the b ...
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When a metal becomes a superconductor, there is a tremendous decrease in its:
When a metal becomes a superconductor, there is a tremendous decrease in its:When a metal becomes a superconductor, there is a tremendous decrease in its: w) total volume x) electrical resistance y) length z) density ...
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The focal length of a concave spherical mirror is equal to 1 meter. What is the radius of curvature of this mirror?
The focal length of a concave spherical mirror is equal to 1 meter. What is the radius of curvature of this mirror?The focal length of a concave spherical mirror is equal to 1 meter. What is the radius of curvature of this mirror? ...
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A converging thin lens has a focal length of 27 centimeters. An object is placed 9 centimeters from the lens. Where is the image of this object formed?
A converging thin lens has a focal length of 27 centimeters. An object is placed 9 centimeters from the lens. Where is the image of this object formed?A converging thin lens has a focal length of 27 centimeters. An object is placed 9 centimeters from the lens. Where is the image of this object formed ...
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The focal length of a concave mirror is 2 meters. An object is positioned 8 meters in front of the mirror. Where is the image of this object formed
The focal length of a concave mirror is 2 meters. An object is positioned 8 meters in front of the mirror. Where is the image of this object formedThe focal length of a concave mirror is 2 meters. An object is positioned 8 meters in front of the mirror. Where is the image of this object formed ...
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Determine the equation of the circle with centre $(2 ;-5)$ and radius $4 .$
Determine the equation of the circle with centre $(2 ;-5)$ and radius $4 .$Determine the equation of the circle with centre $(2 ;-5)$ and radius $4 .$ ...
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Determine the equation of the circle with centre $\mathrm{B}(-4 ; 3)$ and radius $4 .$
Determine the equation of the circle with centre $\mathrm{B}(-4 ; 3)$ and radius $4 .$Determine the equation of the circle with centre $\mathrm{B}(-4 ; 3)$ and radius $4 .$ ...
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Determine the equation of the circle with centre $\mathrm{K}(-5 ;-4)$ and radius $5 .$
Determine the equation of the circle with centre $\mathrm{K}(-5 ;-4)$ and radius $5 .$Determine the equation of the circle with centre $\mathrm{K}(-5 ;-4)$ and radius $5 .$ ...
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In order to protect his vegetables, a farmer buys $1748 \mathrm{~m}$ of fencing. Give the dimensions of the vegetable garden if it should cover a maximum area.
In order to protect his vegetables, a farmer buys $1748 \mathrm{~m}$ of fencing. Give the dimensions of the vegetable garden if it should cover a maximum area.In order to protect his vegetables, a farmer buys $1748 \mathrm{~m}$ of fencing. Give the dimensions of the vegetable garden if it should cover a ma ...
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Measurements are collected from 100 subjects from each of two sources. The data yield the following frequency histograms. The number above each rectangle is its height.
Measurements are collected from 100 subjects from each of two sources. The data yield the following frequency histograms. The number above each rectangle is its height. Measurements are collected from 100 subjects from each of two sources. The data yield the following frequency histograms. The number above each rect ...
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What is the derivative of the curve $F(t)=[\sin t, \cos t, t]$ in $\mathbf{R}^{3}$?
What is the derivative of the curve $F(t)=[\sin t, \cos t, t]$ in $\mathbf{R}^{3}$?What is the derivative of the curve $F(t)=\sin t, \cos t, t$ in $\mathbf{R}^{3}$? ...
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Normalize the vector $v=(1,-3,4,2)$
Normalize the vector $v=(1,-3,4,2)$Normalize the vector $v=(1,-3,4,2)$ ...
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What is the norm of $u=(1,-2,-4,5,3)$?
What is the norm of $u=(1,-2,-4,5,3)$?What is the norm of $u=(1,-2,-4,5,3)$? ...
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What is the norm of a vector?
What is the norm of a vector?What is the norm of a vector? ...
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How does the width of the confidence interval change with length?
How does the width of the confidence interval change with length?How does the width of the confidence interval change with length? ...
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The sides of a rectangle are positive whole numbers. If its area is $A$ and its perimeter is $P$, which of the following numbers cannot equal $A+P ?$
The sides of a rectangle are positive whole numbers. If its area is $A$ and its perimeter is $P$, which of the following numbers cannot equal $A+P ?$The sides of a rectangle are positive whole numbers. If its area is $A$ and its perimeter is $P$, which of the following numbers cannot equal $A+P ?$ ...
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Using a right-angled triangle how can we derive the trigonometric identity $1+\cot ^{2} \theta=\csc ^{2} \theta$
Using a right-angled triangle how can we derive the trigonometric identity $1+\cot ^{2} \theta=\csc ^{2} \theta$Using a right-angled triangle how can we derive the trigonometric identity $1+\cot ^{2} \theta=\csc ^{2} \theta$ ...
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The lengths of two sides of a triangle are $b$ and $c$. Let $s$ be the length of the angle bisector of the angle between the two given sides. The length of the third side of the triangle is:The lengths of two sides of a triangle are $b$ and $c$. Let $s$ be the length of the angle bisector of the angle between the two given sides. The leng ...
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The measure of the angle $\angle C B D$ is:
The measure of the angle $\angle C B D$ is:In the triangle $\triangle A B C$ measures of angles $\angle A=46^{\circ}$ and $\angle C=60^{\circ}$ are given. The angle bisector intersects the circ ...
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In the right triangle the length of one leg is 5 in., and the measure of the angle opposite to that side is $30^{\circ}$. Determine which of the given statements is correct.
In the right triangle the length of one leg is 5 in., and the measure of the angle opposite to that side is $30^{\circ}$. Determine which of the given statements is correct.In the right triangle the length of one leg is 5 in., and the measure of the angle opposite to that side is $30^{\circ}$. Determine which of the given ...
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Triangle $\triangle A B C$, right angled at $C$, is given. Height and the median from point $C$ form an angle $\varphi$. The measure of larger acute angle of $\triangle A B C$ is:Triangle $\triangle A B C$, right angled at $C$, is given. Height and the median from point $C$ form an angle $\varphi$. The measure of larger acute a ...
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The distance of the shorter ladder form the wall is:
The distance of the shorter ladder form the wall is:A pair of ladders whose lengths are $4.2 \mathrm{~m}$ and $5.6 \mathrm{~m}$ are leaned onto a wall such that they reach the same height. The base of t ...
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What is the largest rectangular area that 80m of fencing can enclose?
What is the largest rectangular area that 80m of fencing can enclose?What is the largest rectangular area that 80m of fencing can enclose? ...
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A farmer has 2400ft. of fencing and wants to fence off a rectangular field that borders a straight river. He needs no fence along the river. What are the dimensions of the field that has the largest area?A farmer has 2400ft. of fencing and wants to fence off a rectangular field that borders a straight river. He needs no fence along the river. What are ...
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A right-angled triangle has sides $a, b$ and $c$ and the angle $\theta$, as shown below.
A right-angled triangle has sides $a, b$ and $c$ and the angle $\theta$, as shown below. A right-angled triangle has sides $a, b$ and $c$ and the angle $\theta$, as shown below. 1. $\quad$ Write the following in terms of $a, b$ an ...
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Show that a triangle $\mathrm{ABC}$, with vertices $\mathrm{A}(1 ; 1) ; \mathrm{B}(3 ; 6)$ and $\mathrm{C}(6 ; 3)$, is an isosceles triangle.
Show that a triangle $\mathrm{ABC}$, with vertices $\mathrm{A}(1 ; 1) ; \mathrm{B}(3 ; 6)$ and $\mathrm{C}(6 ; 3)$, is an isosceles triangle. Show that a triangle $\mathrm{ABC}$, with vertices $\mathrm{A}(1 ; 1) ; \mathrm{B}(3 ; 6)$ and $\mathrm{C}(6 ; 3)$, is an isosceles triangle. ...
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The graphs of $f(x)=x^{2}-4$ and $g(x)=-x+2$ are sketched below. $A$ and $B$ are the $x$ -intercepts of $f . \mathrm{C}$ and $\mathrm{D}$ are the $y$ -intercepts of $f$ and $g$ respectively. The graphs of $f(x)=x^{2}-4$ and $g(x)=-x+2$ are sketched below. $A$ and $B$ are the $x$ -intercepts of $f . \mathrm{C}$ and $\mathrm{D}$ are the $y ... close 1 answer 276 views In the diagram,$O$is the centre of the circle passing through$A, B$and$C$.$\mathrm{C\hat{A}} \mathrm{A}=48^{\circ}, \mathrm{C\hat{O}} \mathrm{B}=x$and$\hat{\mathrm{C}}_{2}=y$In the diagram,$O$is the centre of the circle passing through$A, B$and$C$.$\mathrm{C\hat{A}} \mathrm{A}=48^{\circ}, \mathrm{C\hat{O}} \mathrm{ ...
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The lengths of three wires were $30 \mathrm{~m}, 36 \mathrm{~m}$ and $84 \mathrm{~m}$. Pieces of wire of equal length were cut from the three wires. Calculate the least number of pieces obtained. The lengths of three wires were $30 \mathrm{~m}, 36 \mathrm{~m}$ and $84 \mathrm{~m}$. Pieces of wire of equal length were cut from the three wires. C ...
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At what rate is the top of the ladder falling when the foot of the ladder is 4 meters from the wall?
At what rate is the top of the ladder falling when the foot of the ladder is 4 meters from the wall?A ladder 12 meters long leans against a wall. The foot of the ladder is pulled away from the wall at the rate $\frac{1}{2} \mathrm{~m} / \mathrm{min}$ ...
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How fast is the angle between the top of the ladder and the wall changing when the angle is $\pi / 3$ radians?
How fast is the angle between the top of the ladder and the wall changing when the angle is $\pi / 3$ radians?A ladder $15 \mathrm{ft}$ long rests against a vertical wall. Its top slides down the wall while its bottom moves away along the level ground at a spe ...
In the diagram below, $\mathrm{O}$ is the centre of the circle KTUV. PKR is a tangent to the circle at $\mathrm{K}$. $\mathrm{OUV}=48^{\circ}$ and $\mathrm{KTU}=120^{\circ}$
In the diagram below, $\mathrm{O}$ is the centre of the circle KTUV. PKR is a tangent to the circle at $\mathrm{K}$. $\mathrm{OUV}=48^{\circ}$ and $\mathrm{KTU}=120^{\circ}$ In the diagram below, $\mathrm{O}$ is the centre of the circle KTUV. PKR is a tangent to the circle at $\mathrm{K}$. $\mathrm{OUV}=48^{\circ}$ and $... close Notice: Undefined index: avatar in /home/customer/www/mathsgee.com/public_html/qa-theme/AVEN/qa-theme.php on line 993 In the diagram below, two circles intersect at$\mathrm{K}$and$\mathrm{Y}$. The larger circle passes through$\mathrm{O}$, the centre of the smaller circle. 0 answers 278 views In the diagram below, two circles intersect at$\mathrm{K}$and$\mathrm{Y}$. The larger circle passes through$\mathrm{O}$, the centre of the smaller circle. In the diagram below, two circles intersect at$\mathrm{K}$and$\mathrm{Y}$. The larger circle passes through$\mathrm{O}$, the centre of the small ... close Notice: Undefined index: avatar in /home/customer/www/mathsgee.com/public_html/qa-theme/AVEN/qa-theme.php on line 993 In the diagram below,$\mathrm{O}$is the centre of the circle.$\mathrm{BD}$is a diameter of the circle. 0 answers 216 views In the diagram below,$\mathrm{O}$is the centre of the circle.$\mathrm{BD}$is a diameter of the circle. In the diagram below,$\mathrm{O}$is the centre of the circle.$\mathrm{BD}$is a diameter of the circle. GEH is a tangent to the circle at E. ... close 0 answers 261 views In the diagram$\mathrm{RT}$is the height of a vertical tower, with$\mathrm{T}$the foot of the tower. A and B are 2 points, with equidistance from$\mathrm{T}$and they lie in the same horizontal space as$\mathrm{T}$. In the diagram$\mathrm{RT}$is the height of a vertical tower, with$\mathrm{T}\$ the foot of the tower. A and B are 2 points, with equidistance ...