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3 years ago

6) Solve the equation by Completing the Square. Show all the solutions. x2 + 8x -5 = 0

Mathematics

1 answer:

Nezavi [6.7K]3 years ago

5 0

There are two answers -8.583 or 0.583

I used tiger algebra cause why not. You should try it!

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What's the value of 280?

Roman55 [17]

Answer:

28⁰ = 1

Step-by-step explanation:

If you raise a number to the power of zero, it becomes 1, regardless of the number. The only exception is 0⁰, which is undefined. Any other value to the power of zero equals one.

The easiest way to see it is like this:

Pick any value, we'll call it x

x⁴ = x⁵ / x

x³ = x⁴ / x

x² = x³ / x

x¹ = x² / x

x⁰ = x¹ / x

Because x¹ is equal to x, then x⁰ is just x/x, which is always equal to 1, unless x is equal to zero.

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3 years ago

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I need help with number 3 and 4. Please

noname [10]

For #3 the slop is 4/3 .

The y intercept is -5.

So the equation is

y=4/3x -5

6 0

3 years ago

Solve the problem by entering and solving an equation.

asambeis [7]

Answer: -26.60

Step-by-step explanation:

Heres -30 degrees as faherenheit

3 0

3 years ago

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The two dot plots represent a sample of the number of

zheka24 [161]

The answer is:

Both have the same number of data points

Both means are between 3 and 4

Westwood has less variability than Middleton

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3 years ago

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N Example 3, the points are(0,3500) and (5,1750). Write an equation that represents the distance y (in feet) remaining after x m

Cerrena [4.2K]

Answer:

<h2>The time needed is 10 months.</h2>

Step-by-step explanation:

The given points are (0, 3500) and (5, 1750).

First, we use the formula below to find the slope of the line

$m=\frac{y_{2}-y_{1} }{x_{2} -x_{1} }=\frac{1750-3500}{5-0}=\frac{-1750}{5}=-350$

Which means the function is deacrasing with a ratio of 350 feet per month.

Now, we use the slope and one point to find the equation

$y-y_{1} =m(x-x_{1} )\\y-1750=-350(x-5)\\y=-350x+1750+1750\\y=-350x+3500$

This linear function shows that the situation started at the y-intecept (0, 3500), which means the month 0 had already 3500 feet. In other words, the total distance is 3500 feet. Now, the x-intercept will tell us the time needed to travel that distance.

$0=-350x+3500\\-3500=-350x\\x=\frac{-3500}{-350}\\ x=10$

Therefore, the time needed is 10 months.

3 0

2 years ago