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3 years ago

Solve for x. Use the completing the square method. x² + 10x = 6

Mathematics

2 answers:

Goshia [24]3 years ago

8 0

Answer:

x= -5 ± $\sqrt{31}$

Step-by-step explanation:

because i did it so got you fam do this test right

777dan777 [17]3 years ago

5 0

I think the answer is : x2 + 10x - 6 = 0

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Can someone find the error ?? And solve it Please this geometry Specials right triangle

Nuetrik [128]

In a 30-60-90 triangle the hypotenuse is 2 times the shortest leg.

In the problem, they multiplied the shortest leg by sqrt(3)

Hypotenuse = shortest leg x 2

Hypotenuse = 7 x 2 = 14 units

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3 years ago

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Please answer only number seven. Also, tell me the final answer and the process please

Sergeeva-Olga [200]

Left side is 22.
22 x 10 = 220
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3 years ago

Help Please This Is a bit hard so I will give Brainliest if Correct!!

Goshia [24]

Answer:

125 to the 6th power.

Step-by-step explanation:

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3 years ago

An owner of a key rings manufacturing company found that the profit earned (in thousands of dollars) per day by selling n number

vovikov84 [41]

Answer:

The number of key rings sold on a particular day when the total profit is $5,000 is 4,000 rings.

Step-by-step explanation:

The question is incomplete.

An owner of a key rings manufacturing company found that the profit earned (in thousands of dollars) per day by selling n number of key rings is given by

$P=n^2-2n-3$

where n is the number of key rings in thousands.

Find the number of key rings sold on a particular day when the total profit is $5,000.

We have the profit defined by a quadratic function.

We have to calculate n, for which the profit is $5,000.

$P=n^2-2n-3=5\\\\n^2-2n-8=0$

We have to calculate the roots of the polynomial we use the quadratic equation:

$n=\frac{-b\pm\sqrt{b^2-4ac}}{2a}\\\\n= \frac{-2\pm\sqrt{4-4*1*(-8)}}{2}= \frac{-2\pm\sqrt{4-32}}{2} = \frac{-2\pm\sqrt{36}}{2} =\frac{-2\pm6}{2} \\\\n_1=(-2-6)/2=-8/2=-4\\\\n_2=(-2+6)/2=4/2=2$

n1 is not valid, as the amount of rings sold can not be negative.

Then, the solution is n=4 or 4,000 rings sold.

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3 years ago

How do you graph y= -7x-1? Show the coordinates and graph.

aliya0001 [1]

Answer:

You start at -1 because its your y-intercept and from there you go 7 down and 1 to the right

Step-by-step explanation:

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3 years ago

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