Solutions > Percent Word Problems Calculator >

A computer with an original price of 850 is on sale at 15% off. What is the discount amount?

Topic

Full pad

`x`²	`x`^□	log_□	√☐	^□√☐	≤	≥	□□	·	÷	`x`^◦	π
(☐)^′	`ddx`	∂∂`x`	∫	∫_□^□	lim	∑	∞	`θ`	(`f` ◦ `g`)	`f`(`x`)

☐²

x^☐

√☐

^□√☐

□□

log_□

θ

∞

∫

ddx

≥	≤	·	÷	`x`^◦	(☐)	\|☐\|	(`f` ◦ `g`)	`f`(`x`)	ln	`e`^☐
(☐)^′	∂∂`x`	∫_□^□	lim	∑	sin	cos	tan	cot	csc	sec

simplify solve for expand factor rationalize

See All

area

asymptotes

critical points

derivative

domain

eigenvalues

eigenvectors

expand

extreme points

factor

implicit derivative

inflection points

intercepts

inverse

laplace

inverse laplace

partial fractions

range

slope

simplify

solve for

tangent

taylor

vertex

geometric test

alternating test

telescoping test

pseries test

root test

Steps Examples

Generated by AI

qr decomposition (

1	1	1	2
1	0	1	−1
0	−1	−2	1
0	2	0	2

)

Solution

Q=(

1√2	1√22	−13√11	23
1√2	−1√22	13√11	−23
0	−√211	−3√11	0
0	2√211	−43√11	−13

), R=(

√2	1√2	√2	1√2
0	√112	2√211	3√211 +3√22
0	0	6√11	−203√11
0	0	0	43

)

Show Steps

Hide Steps

Solution steps

One step at a time

(

1	1	1	2
1	0	1	−1
0	−1	−2	1
0	2	0	2

)

Multiply by the identity matrix

1	1	1	2
1	0	1	−1
0	−1	−2	1
0	2	0	2

)(

1	0	0	0
0	1	0	0
0	0	1	0
0	0	0	1

)

QR Decomposition using Gram-Schmidt Algorithm

Use Gram-Schmidt Algorithm to turn the matrix to orthogonal matrix.
Apply the inverse operations to an identity matrix to get an upper rectangular matrix

Orthonormalize column C₁

1√2	1	1	2
1√2	0	1	−1
0	−1	−2	1
0	2	0	2

)(

√2	0	0	0
0	1	0	0
0	0	1	0
0	0	0	1

)

Orthonormalize column C₂

1√2	1√22	1	2
1√2	−1√22	1	−1
0	−√211	−2	1
0	2√211	0	2

)(

√2	1√2	0	0
0	√112	0	0
0	0	1	0
0	0	0	1

)

Orthonormalize column C₃

1√2	1√22	−13√11	2
1√2	−1√22	13√11	−1
0	−√211	−3√11	1
0	2√211	−43√11	2

)(

√2	1√2	√2	0
0	√112	2√211	0
0	0	6√11	0
0	0	0	1

)

Orthonormalize column C₄

1√2	1√22	−13√11	23
1√2	−1√22	13√11	−23
0	−√211	−3√11	0
0	2√211	−43√11	−13

)(

√2	1√2	√2	1√2
0	√112	2√211	3√211 +3√22
0	0	6√11	−203√11
0	0	0	43

)

Therefore

Q=(

1√2	1√22	−13√11	23
1√2	−1√22	13√11	−23
0	−√211	−3√11	0
0	2√211	−43√11	−13

), R=(

√2	1√2	√2	1√2
0	√112	2√211	3√211 +3√22
0	0	6√11	−203√11
0	0	0	43

)

Percent Word Problems Examples

Popular topics

median calculator dot product calculator arc length calculator maclaurin series calculator z score calculator critical point calculator inequalities calculator range calculator determinant calculator second derivative calculator lcm calculator partial derivative calculator complete the square calculator distributive property calculator mixed fractions calculator Time Calculator gradient calculator triple integrals calculator partial fractions calculator indefinite integral calculator solve for x calculator double integral solver vector calculator Date Calculator vertex calculator binomial expansion calculator decimal to fraction calculator difference quotient calculator eigenvalue calculator piecewise functions calculator radius of convergence calculator roots calculator exponential function calculator interval of convergence calculator fractions divide calculator inflection point calculator expand calculator variance calculator fractions multiply calculator fourier series calculator foil calculator modulo calculator series convergence calculator linear algebra calculator

Chat with Symbo

こんにちは, について質問する qr decomposition (

1	1	1	2
1	0	1	−1
0	−1	−2	1
0	2	0	2

) または以下を選択してください

−▭▭	<	7	8	9	÷	`AC`
+▭▭	>	4	5	6	×	☐☐☐
×▭▭	(	1	2	3	−	`x`
▭ \|▭	)	.	0	=	+	`y`

A computer with an original price of 850 is on sale at 15% off. What is the discount amount?

Solution

Solution steps

Number Line