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larisa [96]
3 years ago
5

The radius of the circle whose equation is (x + 4)² + (y - 2)² = 36 is

Mathematics
1 answer:
bija089 [108]3 years ago
8 0

Answer: 6

The equation given to you is in the form (x-h)^2 + (y-k)^2 = r^2

The right hand side 36 is in the place of r^2, so r^2 = 36 leading to r = 6 after you apply the square root to both sides.

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Maria uses 2 centimeters of tape for every present she wraps. Write an equation that shows the relationship between the number o
Marizza181 [45]

Answer:

y = 2x

Step-by-step explanation:

Maria uses 2 centimeters of tape for each present she wraps, and we want a equation that shows the relationship between the number of presents x and the tape used y. To do this, we can establish a rule of three with the information given:

1 present wrapped -> 2 centimeters of tape

x presents wrapped -> y centimeters of tape

1/x = 2/y

x = y/2 -> y = 2x

From this relation, we know that to make x presents, Maria will use 2x centimeters of tape.

6 0
3 years ago
Help! Simplify (see photo) pls explain<br> If you don’t know pls don’t answer thanks
Temka [501]

Answer:

-8 \sqrt{6}

Step-by-step explanation:

4i\sqrt{-24} \\4i\sqrt{-1} *\sqrt{24} \\4i*i*\sqrt{4}*\sqrt{6}\\-4 * 2*\sqrt{6} \\-8 \sqrt{6}

.

\sqrt{-1} =i \\i*i = -1

7 0
3 years ago
Austin and Aaron were running for mayor in a small town. Aaron received 54% of the votes. Austin received 3266 votes. How many v
lora16 [44]

Answer: dog

Step-by-step explanation:

so basically 70 plus 7 equals 9 and then u ride the car with the horse while eating a fish. how much burgers did he eat?

7 0
3 years ago
Please help me solve this word problem please
leonid [27]

Answer:

it is 69

Step-by-step explanation:

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8 0
3 years ago
Al obtener el valor de lo que costará la fiesta de graduación para tu grupo te das cuenta que el lugar que decidieron alquilar p
dybincka [34]

Explicación paso a paso:

Debemos buscar el costo de cada boleto y la cantidad de personas que deben ir.

Dada la función que da forma al comportamiento expresado como;

f (x) = (-2x) ^ 2 + 80x + 300 donde;

x es el costo de cada boleto

f (x) es el número de personas que deben ir

Para obtener x, usaremos la expresión;

x = -b / 2a

De la ecuación cuadrática dada, a = -2, b = 80 yc = 300

Sustituir;

x = -80/2 (-2)

x = -80 / -4

x = 80/4

x = 20

Por lo tanto, el boleto cuesta $ 20.

Lo siguiente es obtener la cantidad de personas que deben ir. Para conseguirlo, sustituiremos x = 20 en la expresión modelada como se muestra;

f (x) = (-2x) ^ 2 + 80x + 300

f (20) = (-2 (20)) ^ 2 + 80 (20) +300

f (20) = (-40) ^ 2 + 1600 + 300

f (20) = 1600 + 1600 + 300

f (20) = 3500

Por lo tanto, 3500 personas tienen que ir

8 0
3 years ago
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