• Math Help (Its for my exam)?

    1) If f(x)= mx^3 + gx^2 - x + 3 is divided by x + 1, the remainder is 3. If f(x) is divided by x + 2, the remainder is -7. What are the values m and g? 2) Factor fully using the factor theorem. Equation: 4x^4 - 19x^3 +16x^2 - 19x + 12 3) Solve this equation: y^6 - 64 =0 where x∈R and y∈R.
    1) If f(x)= mx^3 + gx^2 - x + 3 is divided by x + 1, the remainder is 3. If f(x) is divided by x + 2, the remainder is -7. What are the values m and g? 2) Factor fully using the factor theorem. Equation: 4x^4 - 19x^3 +16x^2 - 19x + 12 3) Solve this equation: y^6 - 64 =0 where x∈R and y∈R.
    2 answers · Mathematics · 4 hours ago
  • Chem Project Help?

    I have a chem project that is about electrolytes and this project has a survey. I kind of desperately need people to do a survey cause this project is due late next week. Link https://docs.google.com/forms/d/e/1FAIpQ...
    I have a chem project that is about electrolytes and this project has a survey. I kind of desperately need people to do a survey cause this project is due late next week. Link https://docs.google.com/forms/d/e/1FAIpQ...
    Chemistry · 7 days ago
  • Chem Help?

    How can the periodic table be used to help complete energy-level diagrams?
    How can the periodic table be used to help complete energy-level diagrams?
    1 answer · Chemistry · 1 week ago
  • Math Homework Help?

    Find the x intercept mathematically. (Round to 1 decimal place) y= (3^x=2) - 7
    Find the x intercept mathematically. (Round to 1 decimal place) y= (3^x=2) - 7
    3 answers · Mathematics · 1 week ago
  • Math Help?

    Background: The stellar magnitude scale compares the brightness of stars using the equation: m2 - m1 = log (b1/b2). m1 and m2 are the apparent magnitudes of the 2 stars being compared (how bright they appear in the sky). b1 and b2 are their brightness (how much light they actually they emit). This relationship does not factor in how far Earth the... show more
    Background: The stellar magnitude scale compares the brightness of stars using the equation: m2 - m1 = log (b1/b2). m1 and m2 are the apparent magnitudes of the 2 stars being compared (how bright they appear in the sky). b1 and b2 are their brightness (how much light they actually they emit). This relationship does not factor in how far Earth the stars are. Questions: a) Sirius is the brightest-appearing star in our sky, with the apparent magnitude of - 1.5. How much brighter does Sirius appear than Betelgeuse, whose apparent magnitude is 0.12? b) The Sun appears about 1.3x10^10 times are brighter in our sky as does Sirius. What is the apparent magnitude of the Sun?
    1 answer · Mathematics · 1 week ago
  • Chem Help?

    1) What does this equation: E=-2.178e-18(1/n^2)? 2) How does one find the number -2.178e-18? Explain (both equations)
    1) What does this equation: E=-2.178e-18(1/n^2)? 2) How does one find the number -2.178e-18? Explain (both equations)
    1 answer · Chemistry · 2 weeks ago
  • How do you get -2.178e-18 in this formula; E=-2.178e-18(1/n^2)?

    E=-2.178e-18(1/n^2)
    E=-2.178e-18(1/n^2)
    1 answer · Mathematics · 2 weeks ago
  • Chem Help?

    Calculate the frequency and wavelength of electromagnetic radiation emitted from a hydrogen atom if an electron moves from the third energy level to the first energy level.
    Calculate the frequency and wavelength of electromagnetic radiation emitted from a hydrogen atom if an electron moves from the third energy level to the first energy level.
    1 answer · Chemistry · 3 weeks ago
  • Half Life Problems (thorium - 233)?

    A 20 mg sample decays to 17 mg after 5 min. How long will it take to decay to 1 mg?
    A 20 mg sample decays to 17 mg after 5 min. How long will it take to decay to 1 mg?
    4 answers · Mathematics · 4 weeks ago
  • Half Life Problems?

    Determine the half-life of: 1) thorium - 233 A 20 mg sample decays to 17 mg after 5 min. 2) bismuth - 214 A 10 mg sample decays to 9 mg after 3 min.
    Determine the half-life of: 1) thorium - 233 A 20 mg sample decays to 17 mg after 5 min. 2) bismuth - 214 A 10 mg sample decays to 9 mg after 3 min.
    2 answers · Mathematics · 4 weeks ago
  • Solve please?

    Solve this equation (logarithms) 5^x = 3 - 5^2x
    Solve this equation (logarithms) 5^x = 3 - 5^2x
    3 answers · Mathematics · 4 weeks ago
  • Prove This?

    Do questions: b, c, and e Show your work (all of it).
    Do questions: b, c, and e Show your work (all of it).
    2 answers · Mathematics · 1 month ago
  • Prove This?

    sin^4 x + 2 cos^2 x - cos^4 x =1
    sin^4 x + 2 cos^2 x - cos^4 x =1
    3 answers · Mathematics · 1 month ago
  • Proof this, please?

    1 - (sin^2x tanx/(tanx+1)) - (cos^2x/(tanx+1)) = sinx cosx Show your work. Please don't skip any steps.
    1 - (sin^2x tanx/(tanx+1)) - (cos^2x/(tanx+1)) = sinx cosx Show your work. Please don't skip any steps.
    2 answers · Mathematics · 1 month ago
  • Prove this?

    (sin4x/1-cos4x)(1-cos2x/cos2x)=tanx Sow your work.
    (sin4x/1-cos4x)(1-cos2x/cos2x)=tanx Sow your work.
    5 answers · Mathematics · 1 month ago
  • Prove this?

    tanx-cotx=(tanx-1)(cotx+1)
    tanx-cotx=(tanx-1)(cotx+1)
    4 answers · Mathematics · 1 month ago
  • Prove This?

    (cosx -sinx) / (cosx +sinx) = sec2x - tan 2x Show your work
    (cosx -sinx) / (cosx +sinx) = sec2x - tan 2x Show your work
    4 answers · Mathematics · 1 month ago
  • Prove this?

    cos^6x+sin^6x=1-3 sin^2x+3 sin^4x Show your work
    cos^6x+sin^6x=1-3 sin^2x+3 sin^4x Show your work
    4 answers · Mathematics · 1 month ago
  • How to calculate atoms in for carbon in C12 H22 O11?

    Can you show your work? Thanks
    Can you show your work? Thanks
    1 answer · Chemistry · 10 months ago
  • Chemistry Formula?

    1) plumbic acetacte 2) aurous oxide 3) ferric hydroxide
    1) plumbic acetacte 2) aurous oxide 3) ferric hydroxide
    3 answers · Chemistry · 11 months ago