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4 years ago

Leah has a collection of 36 baseball cards. She..

Mathematics

1 answer:

Evgesh-ka [11]4 years ago

8 0

Answer:

She gave away 24 cards

Step-by-step explanation:

(36)*( $\frac{2}{3}$ )=24

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Can someone do this whole page please? I REALLY NEED IT!

nordsb [41]

Answer:

1. A(-8,3) B(-8,-2) C(-4,-2)

2. A'(8,3) B'(8,-2) C'(4,-2)

3. A"(-12,1.5) B"(-12,-3) C"(-6,-3)

4. they give you the coordinates, haha. Just graph and connect the dots.

5. Coordinates of ABC: A(-8,3) B(-8,-2) C(-4,-2)

Coordinates of A'''B'''C''': A'''(-3,10) B'''(-3,5) C'''(1,5)

The correct coordinates for a 90 degree rotation is: A''''(3,8) B''''(-2,8) C''''(-2,4)

Most of these are formulas so I hope you have this memorized in preparation for tests! Good luck!

3 0

2 years ago

What is the standard notation for the distance of 8.512 x 10^10 miles (10 to the tenth power)

Harlamova29_29 [7]

I'm not sure what the answer can be for this

8 0

3 years ago

Read 2 more answers

In the diagram, the circle will be dilated by a scale factor of 3 about the origin. The points C, A and B map to C, A and B'afte

bagirrra123 [75]

The answer is A 8.15

8 0

4 years ago

4. Elena va a una fiesta pero no sabe que ponerse, así que lanza un moneda y un dado al

taurus [48]

Answer:

<u>1/4</u>

Explanation:

Hola. Puesto que tu pregunta está en español, te responderé en el mismo lenguage.

Estas son las posibilidades dadas por la combinación moneda/dado

Número de combinaciones

Moneda: prenda

Cara: vestido 1 de 2: 1/2

Sello: falda 1 de 2: 1/2

Dado: color

Par: negro 3 de 6: 3/6

Impar: café 3 de 6: 3/6

En total son 2 × 6 resultados: 12 (incluye resultados repetidos, no son todos diferentes entre sí)

¿Cuántas combinaciones tienen vestido y color negro?

P(Vestido∩negro) = ?

Es decir: moneda = cara y dado = par

Son 1 × 3 = 3.

Por tanto, la probabilidad de vestido negro es:

3 de 12 = 3/12 = 1/4 ← respuesta

Hay otras formas de resolverlo. Por ejemplo;

Como los resultados de lanzar la moneda y el dado son independientes:

P(Vestido∩negro) = P(Vestido) × P(Negro)
P(Vestido) = 1/2
P(Negro) = 3/6 = 1/2

P(Vestido) × P(Negro) = 1/2 × 1/2 = 1/4 ← mismo resultado

8 0

4 years ago

A circle has a radius of \sqrt{13}√ 13 square root of, 13, end square root units and is centered at (-9.3,4.1)(−9.3,4.1)le

timofeeve [1]

Answer: The equation of the circle is

$x^2+y^2+18.6x-8.2y+90.3=0.$

Step-by-step explanation: We are given to write the equation of the circle with radius √13 units and center at the point (-9.3, 4.1).

We know that

the standard equation of a circle with radius r units and center at the point (h, k) is given by

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

In the given circle,

radius, r = √13 units and center, (h, k) = (-9.3, 4.1).

Therefore, the equation of the circle will be

$(x-(-9.3))^2+(y-4.1)^2=(\sqrt{13})^2\\\\\Rightarrow (x+9.3)^2+(y-4.1)^2=13\\\\\Rightarrow x^2+18.6y+86.49+y^2-8.2y+16.81=13\\\\\Rightarrow x^2+y^2+18.6x-8.2y+103.3=13\\\\\Rightarrow x^2+y^2+18.6x-8.2y+90.3=0.$

Thus, the equation of the circle is

$x^2+y^2+18.6x-8.2y+90.3=0.$

7 0

3 years ago