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3 years ago

QUADRATIC FORMULAX = ?

Mathematics

2 answers:

astraxan [27]3 years ago

7 0

Answer:

x=5

Step-by-step explanation:

well first 2(2x-5) turns to 4x-10 because of distributive prperty

then simplify the other side 3x+x-2x to 4x-2x to 2x

then subtract 4x from both sides and you get -10= -2x

after divied -2x/-2 and -10/-5

and get x=5

then plug in 5 into x to make sure both sides are equal

and they equal 10=10

wlad13 [49]3 years ago

4 0

Answer:

quad form is (plus or minus)

Step-by-step explanation:

$-b +-\sqrt{b^2-4ac}/2a$

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Please help me I need help please

MakcuM [25]

Answer:

p = 4

Step-by-step explanation:

Given equation:

$x^2+(p-3)y^2-4x+6y-16=0$

Standard equation of a circle:

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

(where $(a,b)$ is the centre of the circle, and $r$ is the radius)

If you expand this equation, you will see that the coefficient of $y^2$ is always one.

Therefore, $p-3=1$

$\implies p=1+3=4$

Additional information

To rewrite the given equation in the standard form:

$\implies x^2+y^2-4x+6y-16=0$

$\implies x^2-4x+y^2+6y=16$

$\implies (x-2)^2-4+(y+3)^2-9=16$

$\implies (x-2)^2+(y+3)^2=16+4+9$

$\implies (x-2)^2+(y+3)^2=29$

So this is a circle with centre (2, -3) and radius √29

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2 years ago

The figure is made up of a hemisphere and a cylinder. What is the volume of the figure?

jeka94

890.11753 m^3. get the volume of a hemisphere then add that to the volume of a cylinder.

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3 years ago

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UNO [17]

Answer:

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Step-by-step explanation:

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3 years ago

Read 2 more answers

What is the root of -x^2+12x-32

Zepler [3.9K]

Answer:

x = 4, x = 8

Step-by-step explanation:

To find the roots equate to zero, that is

- x² + 12x - 32 = 0 ( multiply through by - 1 )

x² - 12x + 32 = 0

Consider the factors of the constant term (+ 32) which sum to give the coefficient of the x- term (- 12)

The factors are - 4 and - 8, since

- 4 × - 8 = + 32 and - 4 - 8 = - 12, thus

(x - 4)(x - 8) = 0

Equate each factor to zero and solve for x

x - 4 = 0 ⇒ x = 4

x - 8 = 0 ⇒ x = 8

6 0

3 years ago

find the common difference of the arithmetic sequence. 6, 9.4, 12.8, 16.2, . . . a. –1.6 b. 15.4 c. 1.6 d. 3.4

gulaghasi [49]

Common difference is just the number you pick minus the previous number,
You have 6, 9.4, 12.8, 16.2, . . .

d=9.4-6=3.4
d=12.8-9.4=3.4

The common difference is 3.4

5 0

3 years ago

QUADRATIC FORMULAX = ?​

QUADRATIC FORMULAX = ?