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  • Waiting for answer How do I find the x-intercepts of the graph of ##y=x^2-11x+1...

    To find the x-intercepts of the graph of ##y=x^2-11x+18## substitute 0 for y and solve for x. ##0=x^2-11x+18## Now, factor the quadratic expression on the right. ##0=(x-2)(x-9)## and set each factor equal to 0 and solve. ##(x-2)=0## or ##(x-9)=0## ##= x=2## or ##x=9## The x-in...

  • Waiting for answer The titration of an impure sample of KHP found that 36.0 mL...

    The ##"KHP"## is 96.1 % pure. The equation for the reaction with ##"NaOH"## is ##"KHC"_8"H"_4"O"_4 + "NaOH" → "KNaC"_8"H"_4"O"_4 + "H"_2"O"## ##color(white)(mll)"KHP"color(white)(m...

  • Waiting for answer What are the layers of the earth made of?

    It depends on the layer. Let's start with the crust, the most abundant element in the crust is the Oxygen, Silicon, Aluminum, Calcium, Iron, Potassium, Magnesium, Titanium, Hydrogen,...

  • Waiting for answer What are the monomers and polymers of proteins?

    are polymers. The monomers which make up proteins are called "amino acids." Amino acids consist of an amino group (NH3), carboxyl group (COOH), a hydrogen, and an r group (any carbon chain or hydrogen). The variation in r groups allows for the diversity of amino acids, and thus the variety of pro...

  • Waiting for answer What were the goals of the Space Shuttle program?

    The space shuttle program provided a relatively efficient, reusable means to carry astronauts, satellites, and supplies into space. Many of the components of the space shuttle were reusable, unlike the space capsules of previous programs. The shuttle itself was able to return to Earth after comple...

  • Waiting for answer What is the structural formula of CaCO3?

    You can draw it in many different ways. Some are given below Ca-----C===0 | | | | 0------0 And second one is [Ca]2+[CO3]2− And the third one ma...

  • Waiting for answer What does dissociate in water mean and how does it affect ac...

    The word "dissociate" means to break up into ions. For example, with sodium chloride dissociates it forms Na+ and Cl- ions. When acids dissociate, they break apart in the following manner: ##HA - H^+ + A^-## Where H+ is the acidic hydrogen and A- is the rest of the acid (in anion form). When bas...

  • Waiting for answer What type of galaxy is the Milky Way classified as?

    Barred spiral galaxy There are four types of galaxy: Elliptical Spiral Barred spiral Irregular The milky way galaxy is a barred spiral galaxy due to the fact that it has a feat...

  • Waiting for answer How does the function and structure of the chromosomes in pr...

    Function- same. Structure- Linked with presence of histone proteins. The function remains the same- to produce proteins. The structure of chromosome in prokaryotes is that the DNA is...

  • Waiting for answer In the phrase, "a flock of geese," is flock a collective nou...

    They are both common and flock is a collective noun. The whole expression is not a noun. Nouns are single words so a flock of geese is not a noun. Flock and geese are both common n...

  • Waiting for answer How do you write the heterozygous dominant genotype?

    If "T" is for the dominant allele of a trait (eg. phenotype of brown fur) and "t" is the recessive allele of a trait (eg. phenotype of white fur), then a heterozygous dominant genotype for this trait would be " Tt ". Heterozygous means both alleles are different (so Tt, not tt or TT) A genotype...

  • Waiting for answer Why is the carbon tetrachloride molecule nonpolar and yet th...

    Here's why that happens. Carbon tetrachloride, ##"CCl"_4##, is a nonpolar molecule because of its . In order for a molecule to be polar , it must have a net dipole moment . In th...

  • Waiting for answer Balancing redox equation? ##K_2CrO_4+Na_2SO_3+HCl->KCl+Na...

    Start by assigning to all the atoms that take part in the reaction ##stackrel(color(blue)(+1))(K_2) stackrel(color(blue)(+6))(Cr) stackrel(color(blue)(-2))(O_4) + stackrel(color(blue)(+1))(Na_2) stackrel(color(blue)(+4))(S) stackrel(color(blue)(-2))(O_3) + stackrel(color(blue)(+1))(H) stackrel(col...

  • Waiting for answer Who formed the Free-Soil Party and why?

    Free Soilers were formed by New York and Illinois anti-slavery elements of the Democratic and Whig parties. No one person leaps out as the founder of the Free Soil party (although Il...

  • Waiting for answer The bee hummingbird is the smallest bird. It can weigh as l...

    ##=0.00133%## ##1 " Kilogram "=1,000## grams Hence we can write ostrich weighs ##150xx1,000=150,000## grams Therefore percent of the weight of bee to ostrich ##=2/150000 xx 100##...

  • Waiting for answer What does the endocrine system do?

    Endocrine system plays a major role in the human body by releasing hormones which inturn help in control and coordination of various organs and their functions.

  • Waiting for answer Is the difference between an OLS regression and a GLS regres...

    It is quantitative Ordinary least squares is a technique for estimating unknown parameters in a linear regression model. OLS yield the maximum likelihood in a vector ##β##, assuming...

  • Waiting for answer What is the difference between the prefrontal cortex and fro...

    Prefrontal cortex is a part of frontal lobe. Our cerebral hemisphere is divided into 4 lobes : frontal, parietal, temporal and occipital. Among these lobes the frontal lobe is the l...

  • Waiting for answer How does r squared related to standard deviation?

    I always think of this as measures of spread so the spread from the regression line and the spread from the distribution should be highly correlated. so consider the regression line as a line that runs on the y axis at 0. Why 0 , well because that's what the mean is when we look at the distributio...

  • Waiting for answer If the density of aluminum is 2.7 g/ml then what is the volu...

    ## 3 ml## Density is defined as ##(Mass)/(Volume)##. In this example for aluminium; Density = 2.7 g/ml and Mass = 8.1 g Therefore, In this example, ##2.7 = 8.1/(Volume)## ##Volume...

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