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3 years ago

en el supermecado hay promociones de 2 refrescos a $3. cuantos me cuesta llevar el de los 37 chicos de mi clase y el mío

Mathematics

1 answer:

k0ka [10]3 years ago

5 0

Answer:57

Step-by-step explanation:

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Find the center and radius of this circle. x2 + y2 − 40x − 24y + 15 = 0

Julli [10]

ANSWER

Center: (20,12)

Radius:23

EXPLANATION

The given circle has equation:

${x}^{2} + {y}^{2} - 40x - 24y + 15 = 0$

We complete the square as follows:

${x}^{2} - 40x + {y}^{2} - 24y = - 15$

${x}^{2} - 40x + {( - 20)}^{2} + {y}^{2} - 24y + {( - 12)}^{2} = - 15+ {( - 20)}^{2}+ {( - 12)}^{2}$

${(x - 20)}^{2} + {(y - 12)}^{2} = - 15+ 400+ 144$

${(x - 20)}^{2} + {(y - 12)}^{2} = 529$

${(x - 20)}^{2} + {(y - 12)}^{2} = {23}^{2}$

Comparing this equation to:

${(x - h)}^{2} + {(y - k)}^{2} = {r}^{2}$

We have

$(h,k)=(20,12)$

representing the center and

$r = 23$

being the radius.

5 0

3 years ago

5 cm \13 cm 12 cm 10 cm What is the total surface area of the block?

Bad White [126]

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5 0

3 years ago

I don’t get this? Someone please answer and explain :))

xenn [34]

Answer:

True

Step-by-step explanation:

That expression is called the "Quadratic formula" and basically the solution to any second degree equation can be find by using the quadratic formula.

Attached you can find the procedure to get to the quadratic formula from the general equation of a second degree polynomial.

3 0

3 years ago

Read 2 more answers

Give a polynomial of degree 3 that has zeros of 18, 10i, and -10i and has a value of -3434 when x = 1. Write the polynomial in s

Blizzard [7]

Answer:

nice answer I think so so keep doing what you are doing

6 0

3 years ago

If a 0.2 kg ball is thrown with a velocity of 3.2 m/s what is its KE

aleksklad [387]

$▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪$

Kinetic Energy is equal to :

$\dfrac{1}{2} mv {}^{2}$

where,

m = mass = 0.2 kg

v = velocity = 3.2 m/s

let's solve :

$\dfrac{1}{2} \times 0.2 \times 3.2 \times 3.2$

$1.024 \: \: \: \: joules$

8 0

3 years ago