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3 years ago

Help me complete the square.

Mathematics

1 answer:

Sergeu [11.5K]3 years ago

4 0

Answer:

k= $\sqrt{129}$ -10=1.357816691600547or k= $-\sqrt{129}$ -10=-21.35781669160055

Step-by-step explanation:

k^2-20k=29 |+100

k^2-20k+100=29=100

k^2-2x10xk+(-10)^2=129

(k-10)^2=129

|k-10|= $\sqrt{129}$

case 1 k is a positive number

case 2 k is a negative number

hope this helps

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Given the formula,v= 4.5 + at,find the value of v when a=1.6 and t=3.5.

jarptica [38.1K]

Answer:

v=10.1

Step-by-step explanation:

v= 4.5 + at -------> equation 1

given

a=1.6

t=3.5

so we will plug in the value in equation 1

v = 4.5 + (1.6 x 3.5)

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3 years ago

Find the area of this circle please…Use 3 for pi

ZanzabumX [31]

Given:

The radius of circle is 11 inch

The value for pi is 3

The objective is to find the area of the circle.

The area of the circle is given by the formula:

$A=\pi\times r^2^{}$

Substituting ,r = 11

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We get:

$\begin{gathered} A=\pi\times r^2 \\ =3\times(11)^2 \\ =3\times121 \\ =363 \end{gathered}$

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1 year ago

Which equation has the same soultions as x^2+6×-7=0

blagie [28]

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3 years ago

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igor_vitrenko [27]

Answer:

Step-by-step explanation:

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Bam

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3 years ago

The population of a city decreases by 1.2% per year. If this year's population is 177,000, what will next year's population be,

Vsevolod [243]

Answer:

Initial value

177000

Final value

174,876

Decrease

1.2%

Difference

-2,124

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2 years ago

Help me complete the square. ​

Help me complete the square.