The document discusses various topics in algebraic expressions including:
1) Adding and subtracting algebraic expressions by combining like terms.
2) Finding the numeric value of algebraic expressions by substituting values for variables.
3) Multiplying algebraic expressions using the distributive property and rules of exponents.
4) Dividing algebraic expressions using long division or factoring techniques.
5) Factoring expressions using notable products and factoring polynomials.
Mathematics 9 Lesson 1-B: Solving Quadratic Equations using Quadratic FormulaJuan Miguel Palero
This powerpoint presentation discusses or talks about the topic or lesson Solving Quadratic Equations using the Quadratic Formula. It also discusses the steps in solving quadratic equations using the method of Quadratic Formula.
Mathematics 9 Lesson 1-B: Solving Quadratic Equations using Quadratic FormulaJuan Miguel Palero
This powerpoint presentation discusses or talks about the topic or lesson Solving Quadratic Equations using the Quadratic Formula. It also discusses the steps in solving quadratic equations using the method of Quadratic Formula.
Suma, Resta y Valor numérico de Expresiones algebraicas.
Multiplicación y División de Expresiones algebraicas.
Productos Notables de Expresiones algebraicas.
Factorización por Productos Notables.
College algebra real mathematics real people 7th edition larson solutions manualJohnstonTBL
College Algebra Real Mathematics Real People 7th Edition Larson Solutions Manual
full download: https://goo.gl/ebHcPK
People also search:
college algebra ron larson 7th edition pdf
college algebra: real mathematics, real people pdf
college algebra real mathematics answers
webassign
Expresiones algebraicas, adición y sustracción de expresiones algebraicas, multiplicación y división de expresiones algebraicas, productos notables, fraccionario de productos notables
Suma, Resta y Valor numérico de Expresiones algebraicas.
Multiplicación y División de Expresiones algebraicas.
Productos Notables de Expresiones algebraicas.
Factorización por Productos Notables.
Produccion escrita unidad i. francys barreto felix galindo-0101 iFama Barreto
Presentación Relacionada a Suma, Resta y Valor numérico de Expresiones algebraicas.
Multiplicación y División de Expresiones algebraicas.
Productos Notables de Expresiones algebraicas.
Factorización por Productos Notables.
THE IMPORTANCE OF MARTIAN ATMOSPHERE SAMPLE RETURN.Sérgio Sacani
The return of a sample of near-surface atmosphere from Mars would facilitate answers to several first-order science questions surrounding the formation and evolution of the planet. One of the important aspects of terrestrial planet formation in general is the role that primary atmospheres played in influencing the chemistry and structure of the planets and their antecedents. Studies of the martian atmosphere can be used to investigate the role of a primary atmosphere in its history. Atmosphere samples would also inform our understanding of the near-surface chemistry of the planet, and ultimately the prospects for life. High-precision isotopic analyses of constituent gases are needed to address these questions, requiring that the analyses are made on returned samples rather than in situ.
(May 29th, 2024) Advancements in Intravital Microscopy- Insights for Preclini...Scintica Instrumentation
Intravital microscopy (IVM) is a powerful tool utilized to study cellular behavior over time and space in vivo. Much of our understanding of cell biology has been accomplished using various in vitro and ex vivo methods; however, these studies do not necessarily reflect the natural dynamics of biological processes. Unlike traditional cell culture or fixed tissue imaging, IVM allows for the ultra-fast high-resolution imaging of cellular processes over time and space and were studied in its natural environment. Real-time visualization of biological processes in the context of an intact organism helps maintain physiological relevance and provide insights into the progression of disease, response to treatments or developmental processes.
In this webinar we give an overview of advanced applications of the IVM system in preclinical research. IVIM technology is a provider of all-in-one intravital microscopy systems and solutions optimized for in vivo imaging of live animal models at sub-micron resolution. The system’s unique features and user-friendly software enables researchers to probe fast dynamic biological processes such as immune cell tracking, cell-cell interaction as well as vascularization and tumor metastasis with exceptional detail. This webinar will also give an overview of IVM being utilized in drug development, offering a view into the intricate interaction between drugs/nanoparticles and tissues in vivo and allows for the evaluation of therapeutic intervention in a variety of tissues and organs. This interdisciplinary collaboration continues to drive the advancements of novel therapeutic strategies.
Observation of Io’s Resurfacing via Plume Deposition Using Ground-based Adapt...Sérgio Sacani
Since volcanic activity was first discovered on Io from Voyager images in 1979, changes
on Io’s surface have been monitored from both spacecraft and ground-based telescopes.
Here, we present the highest spatial resolution images of Io ever obtained from a groundbased telescope. These images, acquired by the SHARK-VIS instrument on the Large
Binocular Telescope, show evidence of a major resurfacing event on Io’s trailing hemisphere. When compared to the most recent spacecraft images, the SHARK-VIS images
show that a plume deposit from a powerful eruption at Pillan Patera has covered part
of the long-lived Pele plume deposit. Although this type of resurfacing event may be common on Io, few have been detected due to the rarity of spacecraft visits and the previously low spatial resolution available from Earth-based telescopes. The SHARK-VIS instrument ushers in a new era of high resolution imaging of Io’s surface using adaptive
optics at visible wavelengths.
Slide 1: Title Slide
Extrachromosomal Inheritance
Slide 2: Introduction to Extrachromosomal Inheritance
Definition: Extrachromosomal inheritance refers to the transmission of genetic material that is not found within the nucleus.
Key Components: Involves genes located in mitochondria, chloroplasts, and plasmids.
Slide 3: Mitochondrial Inheritance
Mitochondria: Organelles responsible for energy production.
Mitochondrial DNA (mtDNA): Circular DNA molecule found in mitochondria.
Inheritance Pattern: Maternally inherited, meaning it is passed from mothers to all their offspring.
Diseases: Examples include Leber’s hereditary optic neuropathy (LHON) and mitochondrial myopathy.
Slide 4: Chloroplast Inheritance
Chloroplasts: Organelles responsible for photosynthesis in plants.
Chloroplast DNA (cpDNA): Circular DNA molecule found in chloroplasts.
Inheritance Pattern: Often maternally inherited in most plants, but can vary in some species.
Examples: Variegation in plants, where leaf color patterns are determined by chloroplast DNA.
Slide 5: Plasmid Inheritance
Plasmids: Small, circular DNA molecules found in bacteria and some eukaryotes.
Features: Can carry antibiotic resistance genes and can be transferred between cells through processes like conjugation.
Significance: Important in biotechnology for gene cloning and genetic engineering.
Slide 6: Mechanisms of Extrachromosomal Inheritance
Non-Mendelian Patterns: Do not follow Mendel’s laws of inheritance.
Cytoplasmic Segregation: During cell division, organelles like mitochondria and chloroplasts are randomly distributed to daughter cells.
Heteroplasmy: Presence of more than one type of organellar genome within a cell, leading to variation in expression.
Slide 7: Examples of Extrachromosomal Inheritance
Four O’clock Plant (Mirabilis jalapa): Shows variegated leaves due to different cpDNA in leaf cells.
Petite Mutants in Yeast: Result from mutations in mitochondrial DNA affecting respiration.
Slide 8: Importance of Extrachromosomal Inheritance
Evolution: Provides insight into the evolution of eukaryotic cells.
Medicine: Understanding mitochondrial inheritance helps in diagnosing and treating mitochondrial diseases.
Agriculture: Chloroplast inheritance can be used in plant breeding and genetic modification.
Slide 9: Recent Research and Advances
Gene Editing: Techniques like CRISPR-Cas9 are being used to edit mitochondrial and chloroplast DNA.
Therapies: Development of mitochondrial replacement therapy (MRT) for preventing mitochondrial diseases.
Slide 10: Conclusion
Summary: Extrachromosomal inheritance involves the transmission of genetic material outside the nucleus and plays a crucial role in genetics, medicine, and biotechnology.
Future Directions: Continued research and technological advancements hold promise for new treatments and applications.
Slide 11: Questions and Discussion
Invite Audience: Open the floor for any questions or further discussion on the topic.
Richard's entangled aventures in wonderlandRichard Gill
Since the loophole-free Bell experiments of 2020 and the Nobel prizes in physics of 2022, critics of Bell's work have retreated to the fortress of super-determinism. Now, super-determinism is a derogatory word - it just means "determinism". Palmer, Hance and Hossenfelder argue that quantum mechanics and determinism are not incompatible, using a sophisticated mathematical construction based on a subtle thinning of allowed states and measurements in quantum mechanics, such that what is left appears to make Bell's argument fail, without altering the empirical predictions of quantum mechanics. I think however that it is a smoke screen, and the slogan "lost in math" comes to my mind. I will discuss some other recent disproofs of Bell's theorem using the language of causality based on causal graphs. Causal thinking is also central to law and justice. I will mention surprising connections to my work on serial killer nurse cases, in particular the Dutch case of Lucia de Berk and the current UK case of Lucy Letby.
Introduction:
RNA interference (RNAi) or Post-Transcriptional Gene Silencing (PTGS) is an important biological process for modulating eukaryotic gene expression.
It is highly conserved process of posttranscriptional gene silencing by which double stranded RNA (dsRNA) causes sequence-specific degradation of mRNA sequences.
dsRNA-induced gene silencing (RNAi) is reported in a wide range of eukaryotes ranging from worms, insects, mammals and plants.
This process mediates resistance to both endogenous parasitic and exogenous pathogenic nucleic acids, and regulates the expression of protein-coding genes.
What are small ncRNAs?
micro RNA (miRNA)
short interfering RNA (siRNA)
Properties of small non-coding RNA:
Involved in silencing mRNA transcripts.
Called “small” because they are usually only about 21-24 nucleotides long.
Synthesized by first cutting up longer precursor sequences (like the 61nt one that Lee discovered).
Silence an mRNA by base pairing with some sequence on the mRNA.
Discovery of siRNA?
The first small RNA:
In 1993 Rosalind Lee (Victor Ambros lab) was studying a non- coding gene in C. elegans, lin-4, that was involved in silencing of another gene, lin-14, at the appropriate time in the
development of the worm C. elegans.
Two small transcripts of lin-4 (22nt and 61nt) were found to be complementary to a sequence in the 3' UTR of lin-14.
Because lin-4 encoded no protein, she deduced that it must be these transcripts that are causing the silencing by RNA-RNA interactions.
Types of RNAi ( non coding RNA)
MiRNA
Length (23-25 nt)
Trans acting
Binds with target MRNA in mismatch
Translation inhibition
Si RNA
Length 21 nt.
Cis acting
Bind with target Mrna in perfect complementary sequence
Piwi-RNA
Length ; 25 to 36 nt.
Expressed in Germ Cells
Regulates trnasposomes activity
MECHANISM OF RNAI:
First the double-stranded RNA teams up with a protein complex named Dicer, which cuts the long RNA into short pieces.
Then another protein complex called RISC (RNA-induced silencing complex) discards one of the two RNA strands.
The RISC-docked, single-stranded RNA then pairs with the homologous mRNA and destroys it.
THE RISC COMPLEX:
RISC is large(>500kD) RNA multi- protein Binding complex which triggers MRNA degradation in response to MRNA
Unwinding of double stranded Si RNA by ATP independent Helicase
Active component of RISC is Ago proteins( ENDONUCLEASE) which cleave target MRNA.
DICER: endonuclease (RNase Family III)
Argonaute: Central Component of the RNA-Induced Silencing Complex (RISC)
One strand of the dsRNA produced by Dicer is retained in the RISC complex in association with Argonaute
ARGONAUTE PROTEIN :
1.PAZ(PIWI/Argonaute/ Zwille)- Recognition of target MRNA
2.PIWI (p-element induced wimpy Testis)- breaks Phosphodiester bond of mRNA.)RNAse H activity.
MiRNA:
The Double-stranded RNAs are naturally produced in eukaryotic cells during development, and they have a key role in regulating gene expression .
1. EXPRESIONES
ALGEBRAICAS
ALUMNA:
-Karla Alejandra Salones
CI: 28.555.094
Sección: CO 0101
República Bolivariana de Venezuela
Ministerio del Poder Popular para la Educación Universitaria
Universidad Politécnica Territorial de Lara
«Andrés Eloy BLANCO»
PNF Contaduría Pública
Barquisimeto - Lara
2. Suma y Resta
Para sumar o restar expresiones algebraicas se deben
ordenar los términos semejantes dependiendo de la
potencia. Se suman o restan los coeficientes de acuerdo a
los signos de cada monomio o polinomio como resultado de
sacar como factor común la parte literal.
Suma Resta
1) P(x)+Q(x)= R(x)
P(x) 5𝑥3
+ 2𝑥2
− 3𝑥 + 6
+ Q(x) 3𝑥3
− 4𝑥2
+ 7𝑥 − 1
R(x)= 8𝑥3
− 2𝑥2
+ 4𝑥 + 5
2) B(x)+F(x)= C(x)
B(x) −6𝑥4
+ 4𝑥3
− 2𝑥2
+ 7𝑥 + 3
+ F(x) 5𝑥4
+ 2𝑥3
+ 4𝑥2
+ 2𝑥 − 8
C(x)= −𝑥4
+ 6𝑥3
+ 2𝑥2
+ 9𝑥 − 5
1) P(x)+ (-Q(x))= R(x)
= 5𝑥3
+ 2𝑥2
− 3𝑥 + 6 − ( 3𝑥3
− 4𝑥2
+ 7𝑥 − 1)
P(x) 5𝑥3
+ 2𝑥2
− 3𝑥 + 6
+ Q(x) −3𝑥3
+ 4𝑥2
− 7𝑥 + 1
R(x)= 2𝑥3
+ 6𝑥2
− 10𝑥 + 7
2) B(x)+ (-F(x))= C(x)
= −6𝑥4
+ 4𝑥3
− 2𝑥2
+ 7𝑥 + 3 − 5𝑥4
+ 2𝑥3
+ 4𝑥2
+ 2𝑥 − 8
B(x) −6𝑥4
+ 4𝑥3
− 2𝑥2
+ 7𝑥 + 3
+ F(x) −5𝑥4
− 2𝑥3
− 4𝑥2
− 2𝑥 + 8
C(x)= −11𝑥4
+ 2𝑥3
− 6𝑥2
+ 5𝑥 + 11
3. Valor numérico de expresiones
algebraicas
Para hallar el valor
numérico de una
expresión algebraica, se
reemplaza el valor dado de
las letras y se realizan las
operaciones indicadas en
la expresión, ahora, entre
números, El valor
obtenido, es el valor
numérico de la expresión
dada.
Ejercicio 1
Evalúe la expresión (3(−𝑥)3
− 2)2
para x = -1
=(3.(−(−1))3
− 2)2
=(3.(1)3
− 2)2
=(3 −2)2
= 1
Luego el valor numérico de la expresión (3(−𝑥)3
− 2)2
para x = -1 , es 1.
Ejercicio 2
Evalúe la expresión 2𝑎2
+ 3𝑏3
para a= -3; b= -2
= 2(−3)2
+ 3(−2)3
= 2(9) + 3(−8)
= 18 − 24
= −6
4. Multiplicación de
expresiones algebraicas
Para multiplicar expresiones algebraicas con uno o más
términos usar la propiedad distributiva de la multiplicación con
respecto de la suma y las reglas de los exponentes.
Ejercicio 1 Ejercicio 2
Efectúe la operación: 2x(3 - x)
2x(3 - x)= 2𝑥.3 – 2𝑥.𝑥
= 6𝑥 – 2𝑥2
Luego 2x(3 - x)= – 2𝑥2
+6𝑥
Efectúe la operación: (13𝑥 + 3).(−7𝑥2
+ 2𝑥 − 6)
(13𝑥 + 3).(−7𝑥2
+ 2𝑥 − 6) = 13x −7𝑥2
+ 2𝑥 − 6 + 3 (−7𝑥2
+ 2𝑥 − 6)
= −91𝑥3
+ 26𝑥2
− 78𝑥 − 21𝑥2
+ 6𝑥 − 18
= −91𝑥3
+ 26𝑥2
− 21𝑥2
− 78𝑥 + 6𝑥 − 18
= −91x3
+ 5x2
− 72x − 18
Entonces: (13𝑥 + 3).(−7𝑥2
+ 2𝑥 − 6) = −91x3
+ 5x2
− 72x − 18
5. División de expresiones
algebraicas
La división algebraica es una
operación entre dos
expresiones algebraicas
llamadas dividendo y divisor
para obtener otra expresión
llamado cociente por medio
de un algoritmo.
División normal
Método de Ruffini
1) 5𝑥2
− 7𝑥 − 10 ÷ 𝑥 − 2
5𝑥2
− 7𝑥 − 10 𝑥 − 2
−5𝑥2
+ 10𝑥 5x+3
3𝑥 − 10
−3𝑥 + 6
−4
1) 3𝑥2
− 2𝑥 − 8 ÷ 𝑥 + 2
3𝑥2
− 2𝑥 − 8 𝑥 + 2
−3𝑥2
− 6𝑥 3x-4
−4𝑥 − 8
+4𝑥 + 8
0
1) Dado P(x)= 16𝑥4
+ 8𝑥3
+ 4𝑥2
+ 2𝑥 + 1 hallar
C(x) y R(x) para que P(x) sea divisible por x+1
𝑥 + 1 = 0 → 𝑥 = −1
16 8 4 2 1
-1 -16 8 -12 10
16 -8 12 -10 11
C(X)= 16𝑋3
− 8𝑋2
+ 12𝑋 − 10 R(x)= 11
2) Dado P(x)= 3𝑥3
− 5𝑥2
+ 2 hallar
C(x) y R(x) para que P(x) sea divisible por x-2
𝑥 − 2 = 0 → 𝑥 = 2
3 -5 0 2
2 6 2 4
3 1 2 6
C(x)= 3𝑥2
+ 𝑥 + 2 R(x)= 6
6. Productos notables
Se llama productos notables a ciertas expresiones algebraicas que se
encuentran frecuentemente y que es preciso saber factorizarlas a
simple vista; es decir, sin necesidad de hacerlo paso a paso.
(𝑎𝑥 + 𝑏)2 = 1. (𝑎𝑥 + 𝑏)2
= (−1)2
(𝑎𝑥 + 𝑏)2
= ( −1 (𝑎𝑥 + 𝑏))2
= (−𝑎𝑥 − 𝑏)2
Ejercicio 1
Ejercicio 2
3𝑥 + 2𝑦 3𝑥 − 2𝑦
3𝑥 − 2𝑦 = (3𝑥)2
− (2𝑦)2
= 9𝑥2
− 2𝑦2
7. Factorización por productos
notables
Es una técnica que consiste en la descomposición de una
expresión matemática (que puede ser un número o una suma).
Antes que todo, hay que decir que todo polinomio se
puede factorizar utilizando números reales, si se consideran los
números complejos.
Factorice completamente 3x - √27.
3x − 27 = 3. x − 9.3
= 3. x − 9. 3
= 3. x − 9 3
= 3(x − 3)
La factorización de 3x - √27 es 3(x - √3)
Ejercicio 1 Ejercicio 2
Factorice completamente 6𝑥3
− 9𝑥2
+ 4𝑥 − 6
6𝑥3
− 9𝑥2
+ 4𝑥 − 6 = 6𝑥3
− 9𝑥2
+ (4𝑥 − 6)
= 3𝑥2
2𝑥 − 3 + 2(2𝑥 − 3)
= (2𝑥 − 3)(3𝑥2
+ 2)
La factorización de 6𝑥3
− 9𝑥2
+ 4𝑥 − 6 = (2𝑥 − 3)(3𝑥2 + 2)
8. Bibliografía
-- Arenas de Arias Gladys, Matemáticas 11°, Caracas, Editorial
Santillana, 2001.
-- J. Arvesú y otros, Álgebra lineal y aplicaciones. Síntesis, 1999.
-- Andueza, Aalto, Forjadores de la humanidad, Caracas, Bloque
editorial de Armas, 1993.