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3 years ago

Solve the equation with quadratic formula

Mathematics

2 answers:

hammer [34]3 years ago

5 0

What does x equal to

mina [271]3 years ago

4 0

D = dude look it up
56

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5th Grade U.S Studies Weekly- Week 24 Answer Key

Georgia [21]

You should try and put it in another way it doesn’t make sense

3 0

3 years ago

Even number between 3 and 9

vodka [1.7K]

Answer:4, 6, 8,

Step-by-step explanation:

odd numbers 1,3,5,7,9,11

even numbers 2,4,6,8,10

7 0

4 years ago

Read 2 more answers

The general form of a circle is given as x^2+y^2+4x - 12y + 4 = 0. A) What are the coordinates of the center of the circle? B) W

Alex_Xolod [135]

Answer:

center = (-2, 6)

radius = 6

Step-by-step explanation:

<u>Equation of a circle</u>

$(x-a)^2+(y-b)^2=r^2$

(where (a, b) is the center and r is the radius)

Therefore, we need to rewrite the given equation into the standard form of an equation of a circle.

Given equation:

$x^2+y^2+4x-12y+4=0$

Collect like terms and subtract 4 from both sides:

$\implies x^2+4x+y^2-12y=-4$

Complete the square for both variables by adding the square of half of the coefficient of $x$ and $y$ to both sides:

$\implies x^2+4x+\left(\dfrac{4}{2}\right)^2+y^2-12y+\left(\dfrac{-12}{2}\right)^2=-4+\left(\dfrac{4}{2}\right)^2+\left(\dfrac{-12}{2}\right)^2$

$\implies x^2+4x+4+y^2-12y+36=-4+4+36$

Factor both variables:

$\implies (x+2)^2+(y-6)^2=36$

Therefore:

center = (-2, 6)
radius = √36 = 6

7 0

2 years ago

What does the quotient rule of exponents say?

jenyasd209 [6]

It says that you need to divide 2 exponents with the same base, you keep the base and subtract the powers, its kind of like reducing fractions! :)

8 0

3 years ago

(1+2/3) / x = (2+7/9)

evablogger [386]

Answer:

x=45/75

Step-by-step explanation:

(1+2/3)/x= 2+7/9

5/3x=25/9

5*9= 3x*25

45=75x

x= 45/75 orx=0.6

7 0

3 years ago