Questions
The best high school and college tutors are just a click away, 24×7! Pick a subject, ask a question, and get a detailed, handwritten solution personalized for you in minutes. We cover Math, Physics, Chemistry & Biology.
High School Algebra
Matrices & DeterminantsSelect the difference matrix below 6 3 6 2 4 1 5 1 1 4 6 3 2 14 A 2 3 B D 4 4 5 10 0 2 1 8 12 212 1 4 507 5 10 0 6 8
College Algebra
Quadratic equations20 sin x cos x Need Help Rear Witch it Submit Answer 0 1 Points DETAILS MY NOTES SPRECALC8 7 3 012 MI Use the formulas for lowering powers to rewrite the expression In terms of the first power of cosine 3 cos x cos 2x cos 4x x Need Help Read Master Submit Artwor
Biology
EvolutionDNA sequences from an ancestral species and four modern species that evolved from it are shown below Common ancestor CCGTACATTTCA Cat CCGTACTTTTGA Goldfish CGCTACTATTGA Pigeon CGGTACATTTGA Rhinoceros CCGTACATTTAA Based on these sequences which organism is most closely related to the common ancestor A Cat B Pigeon
Biology
EvolutionWhat have scientists determined by studying fossil balls O A How multicellular organisms may have first formed B That water was the environment in which life began C How all life began on Earth OD That multicellular organisms evolved into bacteria
Biology
BiomoleculesWhich statement describes vertebrate species during embryologic development OA They start off very similar but take different developmental paths as they grow B Organisms with common ancestors do not develop differences as they grow C Species that have recent common ancestors have few similarities during development D As they grow they become increasingly similar
High School Calculus
Application of derivativesFind the point x y on the unit circle that corresponds to the real number t t 6 x y 3 2 1 2
Biology
EvolutionHow is the fossil record evidence for evolution A It shows how species change over time B It shows that embryos of related species are similar C It shows similarities in protein sequences D It shows that new organisms develop instantly
High School Algebra
Quadratic equationsGiven the function f x x 7x 10 x 9x 20 Describe where the function has a vertical asymptote and how you found your answer Remember that an asymptote is represented by an equation of a line and not just a single value Part B Given the function f x x 7x 10 x 9x 20 Describe where the function has a hole and how you found your
High School Geometry
Coordinate systemx y z 0 3 2 x 4 2 1 1 x y 2 1 2 Y 2 1 3 x y 2 1 2 Y Z 1 3 3 2x y 2 1 x y 2 5
College Math - Others
Basic MathSolve the equation Enter your answers as a comma separated list Round your answers to four decimal places e4x 5e2x 36 0 x
College Math - Others
Binomial theoremNancy wants to invest 2000 in saving certificates that bear an interest rate of 7 75 per year compounded semiannually How long a time period should she choose to save an amount of 3000 Round your answer to two decima places x yr
College Math - Others
FunctionsSolve the logarithmic equation for x Enter your answers as a comma separated list Round your answer to four decimal places In x 1 In x 2 1 x
College Math - Others
LogarithmsSolve the logarithmic equation for x Enter your answers as a comma separated list log5 x 8 logs x 8 2 x
College Math - Others
LogarithmsSolve the logarithmic equation for x Enter your answers as a comma separated list log21 x 3 log21 x 1 1 x
College Math - Others
Basic MathSolve the equation Enter your answers as a comma separated list Round your answers to four decimal places 5 35 5 2 0 x
College Math - Others
Basic MathSolve the equation Enter your answers as a comma separated list Round your answers to four decimal places e2x 7ex 6 0 x 1n 6 0
College Math - Others
Binomial theoremSolve the equation Enter your answers as a comma separated list 26 64 6 0
College Math - Others
FunctionsSolve the equation Enter your answers as a comma separated list Round your answers to four decimal places x25x 3xe5x5x 0 x
College Calculus
Limits & ContinuityMake a rough sketch of the graph of the function Do not use a calculator Just use the graphs given in figures below and if necessary these transformati y 10x 5 9 4 y 10 4 2 1 5 0 Ay 3 IN 0 1 x y 2x y ex
College Math - Others
Basic MathSolve the equation Enter your answers as a comma separated list 5x3e 4x 8xe 4x 0 x
College Calculus
Application of derivativesFind the exponential function f x Cax whose graph is given f x 2 y 2 2 81
Biology
Human Physiology - Neural Control & CoordinationThe differentiation of neurons derive from neural crest cells requires the expression of O Neuregulin Edn3 Edn1 Neurturin Steel Fill in the blank
College Calculus
Limits & ContinuityConsider the graph of y ex a Find the equation of the graph that results from reflecting about the line y 2 y b Find the equation of the graph that results from reflecting about the line x 2 y
College Math - Others
LogarithmsUse the Laws of Logarithms to evaluate the expression log3 15 log3 35 log3 63
College Algebra
Permutations and CombinationsThe Ininob Manufacturing Company produces three products widgets yamis and zots The company is trying to determine its production schedule for these products for the next month The company sells widgets for P500 each and zots for P400 each At these prices up to 200 widgets and 30 zots can be sold The price for yamis has not been decided Two prices are under consideration P500 and P600 At the P500 price up to 100 can be sold At the P600 price up to 60 can be sold Ininob purchases the raw material from which all three products are produced from a single firm Widgets require 0 1 tons of raw materials for each one produced Yamis requires 0 2 tons each and zots require 0 3 tons each Because of a shortage there are only 50 tons of raw materials available for production of all thre products The cost of the raw material is P200 per ton The first step in the production process for all three products is a molding and heating operation This requires a special purpose machine A maximum of 400 hours is available on this machine No additional hours can be obtained since the machine is already operating three shifts The variable cost of operating this machine is P80 per hour Each widget requires 1 hour on the machine each yami requires 2 hours and each zot requires 0 5 hours After the molding and heating operations described above the product is finished Zots are finished on a zotting machine It costs P5000 to set up this machine and P100 per zot finished Widgets and yamis are finished on a widgeting machine There is a cost of P10000 to set up this machine However once the machine is set up the machine can finished either widgets or yamis or both The variable cost of operating this machine is P100 per unit for either
Biology
Molecular Basis of InheritanceMelosis 1 MEIOSIS Independent assortment Independent assortment takes place during Metaphase I This is when homologous chromosomes line up in the middle of the cell in a random orientation This results in different combinations of chromosomes in each daughter cell KEY 88 XX XX XX Drag drop the chromosomes from the parent cells into the daughter cells to show how the possible combinations of chromosomes Maternal chromosome came from the mother 88 s OO Paternal chromosome come from the father
College Math - Others
Basic MathJim Ryan an owner of a Burger King restaurant assumes that his restaurant will need a new roof in 5 years He estimates the roof will cost him 9 700 at that time What amount should Jim invest today at 4 compounded quarterly to be able to pay for the roof Use the Table provided Note Do not round intermediate calculations Round your answer to the nearest cent Answer is complete but not entirely correct Amount to be invested 7 949 52
College Algebra
Permutations and CombinationsThe length of a shadow of a tree is 115 feet when the angle of elevation of the sun is 25 Approximate the height of the tree in feet Round your answer to one decimal place ft
College Math - Others
Linear AlgebraA Find the kernel and the range of the linear transformation 1 5pt T R R T x y R T x y z z y x 1 2 1 2 5pt A 0 2 1
College Calculus
Vector CalculusSolve each equation for all solutions between 0 and 2 including 0 and 2 if they are solutions Give all answers as exact values in radians Do not use a calculator 7 4 sin x 3 2 sin x 8 3 5 sin x 3 sin x 9 2 cos t 6 cost 2 3 10 5 cost 2 3 cost
College Calculus
Indefinite IntegrationUse the quadratic formula to find all solutions between 0 and 360 to the nearest tenth of a degree 33 2 sin 0 2 sin 0 1 0 34 2 cos 2 cos 0 1 0
College Calculus
DifferentiationSolve for 0 if 0 360 27 2 cos 0 V3 2 cos 0 1 0 28 2 sin 0 3 2 sin 0 1 0 29 3 tan 0 2 sin 0 tan 0 0 30 tan 0 2 cos 0 tan 0 0 31 2 cos 11 cos 0 5 32 2 sin 0 7 sin 0 3
College Calculus
Vector CalculusSolve each equation for 0 if 0 0 360 Do not use a calculator 1 2 sin 01 2 2 cos 0 1
College Calculus
DifferentiationFind all solutions between 0 and 360 including 0 and 360 if they are solu tions Use a calculator on the last step and write all answers to the nearest tenth of a degree 13 4 sin 0 3 0 14 4 sin 3 0 15 2 cos 0 5 3 cos 0 2 16 4 cos 0 1 3 cos 0 4
College Calculus
Limits & ContinuitySolve for x if 0 x 2 Write your answers in exact values only 19 sin x 1 2 sin x 1 0 20 cos x 1 2 cos x 1 0 21 tan x tan x 1 0 22 tan x tan x 1 0
Anatomy and Physiology
Introduction to Physiology545 pewresearch org A large majority 92 of Hispanic adults ages 65 and older say they ve seen a health care provider in the last 12 months Smaller majorities of younger Hispanic adults including 59 of those ages 18 to 29 say they ve seen a doctor or other health care provider recently Hispanics born in the U S are slightly more likely than those born in other countries to say they ve seen a doctor or other health care provider within the last 12 months 72 to 68 There are wide differences among Hispanic immigrants 55 of those who have been living in the U S for 10 years or less say they have seen a health care provider in the past year compared with 63 of those who have been in the U S 11 to 20 years and 77 of immigrants who have been in the U S more than 20 years Hispanic adults with health insurance are 28 percentage points more likely than those without health insurance to say they ve seen a doctor or other health care provider in the last 12 months 77 vs 49 Half of Hispanic adults without health insurance say they have not seen a provider within the last year The share of Hispanic Americans who are uninsured has declined over the last decade According to a KFF analysis of data from the American Community Survey 20 of Hispanic Americans under age 65 lacked health insurance in 2019 By comparison in 2010 before the implementation of the Affordable Care Act 33 of Hispanic Americans under age 65 did not have health insurance Even so Hispanic Americans remain more likely than other racial and ethnic groups including White and Black Americans to be uninsured There are similar patterns when it comes to having a primary care provider across these characteristics and experiences About half 48 of recent Hispanic immigrants living in the U S 10 years or less say they have a primary care provider Those without health insurance 41 and Hispanic adults under age 30 52 are also less likely than other Hispanic Americans to say they have a primary care provider
College Calculus
Vector CalculusFind the exponential function f x Cax whose graph is given f x y 3 500
College Math - Others
Basic Math3000 A country that is the major supplier of a certain commodity wishes to improve its balance of trade position by lowering the price of the commodity The demand function is q 2 P a Compute E p b Will the country succeed in raising its revenue a E p Simplify your answer
College Calculus
Application of derivativesFind the logarithmic derivative and then determine the percentage rate of change of the function at the points indicated f t 0 312 at t 1 and t 5 The logarithmic derivative is
College Math - Others
Functions81 For the demand function q 2 4 find E p and determine if demand is elastic inelastic or neither at p 4 p E p
College Calculus
DifferentiationFor the demand function q 217 p find E p and determine if demand is elastic or inelastic or neither at p 87 E p
College Calculus
DifferentiationFind the logarithmic derivative and then determine the percentage rate of change of the function at the points indicated f p 5 p 3 at p 2 and p 7 The logarithmic derivative is
College Calculus
Differentiationstudy conducted by the state highway department determined that with a toll of p dollars q cars will use the road each day where q 40 000e 0 4p Is demand elastic or inelastic at p 1 00 To determine if demand is elastic or inelastic the elasticity must be computed To compute the elasticity of demand for the given equation use the formula for elasticity What is the formula for elasticity OA E p pf p f p pf p OB E p f p pf p c E p f p pf p OD E p f p Notice that f p q 40 000e 0 4p is given in the problem statement but f p is not Calculate f p d f p 40 000e 0 4p dp
Biology
Human Physiology - DigestionNotothenia nudifrons is a species of fish that inhabits Antarctic waters and lives at temperatures below 0 C yet maintains membrane fluidity and permeability comparable to mammals with much higher body temperatures What feature of membrane composition would you not expect to find in t species OA High concentrations of phospholipids with relatively shorted fatty acid tails OB High concentrations of cholesterol OC High concentrations of phospholipids with unsaturated fatty acid tails OD High concentrations of phospholipids with saturated fatty acid tails
College Geometry
Coordinate system5 4 3 2 1 13 12 11 10 9 8 7 6 5 4 B A2 1 5 6 7 1 2 3 4 The curve above is the graph of a sinusoidal function It goes through the points 7 0 and 3 0 Find a sinusoidal function that matches the given graph If needed you can enter 3 1416 as pi in your answer otherwise use at least 3 decimal digits
College Statistics
StatisticsLet p be the population proportion for the following condition Find the point estimates for p and q In a survey of 1791 adults from country A 372 said that they were not confident that the food they eat in country A is safe The point estimate for p p is 0 208 Round to three decimal places as needed The point estimate for q q is Round to three decimal places as needed