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3 years ago

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What is the first step in solving the quadratic equation x2 – 40 = 0? taking the square root of both sides of the equation addin

g 40 to both sides of the equation squaring both sides of the equation subtracting 40 from both sides of the equation

1 answer:

Marizza181 [45]3 years ago

5 0

Answer:

add 40 to the -40 to both sides. then do x2/2=0 and 40/2=20

Step-by-step explanation:

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A particular english class has 40 students. as the students leave the room, only 28 students are left after three seconds. what

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Student who gone from class within 3 sec = 12

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3 years ago

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Oliga [24]

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Step-by-step explanation:

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<img src="https://tex.z-dn.net/?f=%5Cint%5Climits%5E2_1%20%7Bx%5E%7B2%7D-8x%2B8%20%7D%20%5C%2C%20dx" id="TexFormula1" title="\in

12345 [234]

Answer:

${ \underline{ \sf{\int\limits^2_1 {x^{2}-8x+8 } \, dx} \: = \: - 1}}$

Step-by-step explanation:

${ \tt{\int\limits^2_1 {x^{2}-8x+8 } \, dx}} \\ \\ = { \tt{[ \frac{ {x}^{3} }{3} - 4 {x}^{2} + 8x ] {}^{2} _{1}}}$

Substitute x with the limits:

$= { \tt{( \frac{ {2}^{3} }{3} - 4( {2)}^{2} + 8(2)) - ( \frac{ {1}^{3} }{3} - 4( {1)}^{2} + 8(1)) }} \\ = { \tt{( \frac{8}{3} - \frac{11}{3} )}} \\ \\ = { \tt{ - 1}}$

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3 years ago

HELPPP PLZZZ<br> Answer the last question.

velikii [3]

Answer:

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3 0

3 years ago

Read 2 more answers

Is the following sequence a geometric sequence?<br><br> 4, 12, 36, 108

Lyrx [107]

Answer:

yes it is

Step-by-step explanation:

it is since there is a common ratio between each term

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3 years ago