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Gnoma [55]
3 years ago
8

What number completes this number

Mathematics
1 answer:
gtnhenbr [62]3 years ago
8 0

Answer: F

Explanation: 3 X (5 + 8) = 39 and (3 X 5) + (3 X 8) = 39 making both sides equal each other.

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A board game has 26 tiles labeled with alphabet letters. Players draw 1 tile at a time. Over 260 different drawings, how many ti
Nastasia [14]

Answer: The probablty is is 41221/26 or 0.00669%

Step-by-step explanation:

Drawing tiles from the bag at one time is mathematically equivalent to drawing one tile 4 times inculding the vowel, without replacement.

If we get one of these 4 letters on draw 1, then on draw 2, we'll have 3 possible successful draws out of the 25 tiles left.

This pattern continues down to draw 4. Since each draw is independent, we just multiply the probabilities together:

6 0
3 years ago
Read 2 more answers
HALP!!! GIVE CORRECT ANSWER AND YOU WILL BE MArKED BRAINLIEST!!!
Deffense [45]

Step-by-step explanation:

the solution area :

-2x - 2y > 4

so,

x + y < -2

4 0
3 years ago
The grade point averages of a large population of college students are approximately normally distributed with a mean of 2.4 and
ivanzaharov [21]

Answer:

0.2266

Step-by-step explanation:

We know that the grade point averages of a large population of college students are approximately normally distributed with a mean of 2.4 and a standard deviation of 0.8. The z-score related to 3.0 is computed as (3.0-2.4)/0.8 = 0.75. Therefore the probability that a randomly selected student will have a grade point average in excess of 3.0 is P(Z > 0.75) where Z comes from a standard normal distribution. So, P(Z > 0.75) = 0.2266

4 0
3 years ago
Someone please help! i don’t get what it’s asking or how to do it :( worth 12 points
jek_recluse [69]

Answer:

2 cubic yards

Step-by-step explanation:

In this problem we are simply finding the volume of a 3D shape. We can calculate this by L × W × H.

9.5 × 12 × 1/3 = 48 ft³

(Note: 4 inches is 1/3 foot)

This means Rosilaine needs 48 cubic feet of wood chips. However, the wood chips are sold in yards, so we need to convert cubic feet to cubic yards.

48 ÷ 27 = 1.777 (repeating decimal)

This means Rosilaine should buy 2 cubic yards of wood chips.

6 0
3 years ago
7. Un avión que sobre vuela el espacio aéreo del aeropuerto Olaya Herrera de Medellín, a una distancia constante de 3 km de la t
skelet666 [1.2K]

Answer:

La ecuación de la trayectoria circular del avión es x² + y² = 9

Step-by-step explanation:

La forma general de la ecuación de un círculo se da como sigue;

(x - h)² + (y - k)² = r²

Dónde;

(h, k) = El centro del círculo

r = El radio del círculo

Dado que la distancia del avión a la torre es constante, tenemos la trayectoria del avión = trayectoria circular

El radio, r de la trayectoria circular = 3 km

Por lo que la trayectoria circular del avión se va a definir con respecto a la torre de control, tenemos;

El centro de la trayectoria circular del avión = La torre

Las coordenadas del centro de la trayectoria circular = (0, 0)

Por lo tanto, (h, k) = (0, 0)

Sustituyendo los valores conocidos, la ecuación de la trayectoria circular del avión se convierte en;

(x - h)² + (y - k)² = r² → (x - 0)² + (y - 0)² = r² = x² + y² = 3² = 9

La ecuación de la trayectoria circular del avión. = x² + y² = 9

4 0
2 years ago
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