MATHEMATICS MIDDLE SCHOOL

Could someone please help me with this: Solution set of lx^2+mx+n=0 is?

Answers

Answer 1

Answer:

Answer:

Quadratic equations have the solution

x = [-b +-sqr root(b^2 -4ac)] / 2a

In the given equation a = l; b = m and c = n So,

x = [-m +-sqr root(m^2 -4*l*n)] / 2*l

Step-by-step explanation:

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What's 97156 divided by 107

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97156 divided by 107 is 908.

a map distance of 5 inches represents 200 miles of actual distance. suppose the distance between two cities on the map is 7 inches. what is the actual distance between the two cities? write the rule you used to find the actual distance

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Set up a proportion:

5/200 = 7/x

Cross multiply:

200 * 7 = 5 * x

1400 = 5x

Divide 5 to both sides:

x = 280

Jr shaded 3/5 of a rectangle. Mary shaded 4/12 of a congruent rectangle. who shaded more? how do you know

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well 3/5 = 0.60 in decimal form
and 4/12 when simplified is 1/3 which is .33 in decimal form
so jr shaded more.

Mary did she paid 0.33 or 1/3

Use a calculator to solve each equation:-5.5x + 0.56 = -1.64

-4.2x + 31.5 = -65.1

k/5.2 +81.9 =47.2

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Go to math way.com with no spaces it will help you a lot

Describe the pattern in the equation. Then solve the equation.0.3x + 0.03x + 0.003x + 0.0003x + ....= 3

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Each term is 10 times smaller than the previous one.

$0.3x+0.03x+0.003x+0.0003x+\ldots=3\nx(0.3+0.03+0.003+0.0003+\ldots)=3\nx\cdot0.\overline{3}=3\nx\cdot(1)/(3)=3\nx=9$

a tennis player hits a serve that cannot be returned 45 percent of the time. Out of 300 serves, how many can yiu predict will not be returned?

Answers

Remember that 45%=45/100=0.45

So if the tennis player serves the ball 300 times, and 45% cannot be returned, then we can use the following expression to solve for the answer:

300*0.45=135serves

Answer: 135 serves will not be returned

Answer:135 serves

Step-by-step explanation:

Remember that 45%=45/100=0.45

So if the tennis player serves the ball 300 times, and 45% cannot be returned, then we can use the following expression to solve for the answer:

300*0.45=135serves

Answer: 135 serves will not be returned

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P - g - 8, when p = 5 and g = 10