Mathematics, 30.10.2019 00:31 kcarstensen59070
Question 20 of 25
1 point
after being rearranged and simplified, which equation cannot be solved using
the quadratic formula?
o
o
a. x2 - 6x- 7 = 2x
b. 2x2 β 3x+ 10 = 2x2 + 21
o
c. 5x2 β 3x + 10 = 2x2
o d. 2x - 4 = 2x2
Answers: 1
Mathematics, 21.06.2019 21:00
Carmen ayer en el mercado compro 3/4 kg de guayabas, 6/8 kg de peras, 1/2 kg de naranjas ΒΏcuantos kilogramos de fruta compro?
Answers: 2
Mathematics, 21.06.2019 23:30
Which equation represents a direct linear variationa. y=x2b. y=2/5xc. y=1/xd. y=x+3
Answers: 3
Mathematics, 22.06.2019 00:20
Submarines control how much they float or sink in the ocean by changing the volume of air and water contained in large ballast tanks. when the tanks are completely full of water, the submarine increases its overall mass and sinks down to the bottom. when the tanks are completely full of air, the submarine reduces its overall mass and floats to the surface. depending on the density of the seawater surrounding the submarine, it will pump seawater in or out of the tanks in order to achieve the same overall density as the sea water and float neutrally in the water. the volume of the submarine never changes. when the tanks are completely full of water, a submarine with a volume of 7.8\times10^3\text{ m}^37.8Γ10 3 m 3 7, point, 8, times, 10, start superscript, 3, end superscript, space, m, start superscript, 3, end superscript has a total mass of 8\times10^6\text{ kg}8Γ10 6 kg8, times, 10, start superscript, 6, end superscript, space, k, g. the density of the seawater is 10^3\text{ kg/m}^310 3 kg/m 3 10, start superscript, 3, end superscript, space, k, g, slash, m, start superscript, 3, end superscript. to make that submarine float neutrally, and neither float nor sink in the ocean, what volume of water does that submarine need to subtract from its tanks?
Answers: 1
Mathematics, 22.06.2019 02:30
Lines a and b are perpendicular. if the slope of line a is 3, what is the slope of line b?
Answers: 1
Question 20 of 25
1 point
after being rearranged and simplified, which equation cannot b...
1 point
after being rearranged and simplified, which equation cannot b...
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