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3 years ago

5

What is the solution of the system of equation y = 2x − 3 5x + y = 11

1 answer:

miss Akunina [59]3 years ago

6 0

Answer: {y,x} = {1,2}

Step-by-step explanation:

1) y = -5x + 11

2) (-5x+11) - 2x = -3

3) - 7x = -14

4) 7x = 14

5) x = 2

6) y = -5(2)+11 = 1

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¿qué edificaciones se encuentran en el mundo con el aspecto de una parábola?

Oksana_A [137]

Answer:

Una parábolase obtienecuando se corta un cono de tal maneraque el corte sea paralelo auno de sus lados, como lo muestra la grafica de la Fig. No 10. Una vez que se ha observado a la parábola en la naturaleza, pasemos a estudiarla desde el punto de vista geométrico.

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3 years ago

1) During skating practice, Sasha landed 7 out of 12 jumps. What is the experimental

balandron [24]

Answer:

14 maybe

Step-by-step explanation:

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3 years ago

Determine if the sequence is arithmetic or geometric, and find the common difference or ratio.

melamori03 [73]

Answer:

The sequence is arithmetic with a common difference of -10

Step-by-step explanation:

From the question, we want to determine if the sequence is arithmetic or geometric

From the question

f(1) = 5

f(2) = -5

f(3) = -15

Mathematically for the common difference;

f(3) - f(2) = f(2) - f(1)

Since;

-15-(-5) = -5-5

-10 = -10

Since the common difference here is same , then the sequence is arithmetic with a common difference of -10

8 0

3 years ago

There are 10 marbles in a bag. Four are blue, 3 are black and 2 white and 1 red. If the marbles are not replaced once they are d

stich3 [128]

<u>Given</u>:

Given that there are 10 marbles in a bag. 4 are blue, 3 are black, 2 are white and 1 is red.

The marbles are selected by not replacing the drawn ones.

We need to the probability of selected a black marble and then a white marble without replacement.

<u>Probability</u>:

Let B denote the black marble.

Let W denote the white marble.

The probability of selecting a black marble is $P(B)=\frac{3}{10}$

The probability of selecting a white marble without replacement is $P(W)=\frac{2}{9}$

The probability of selecting a black marble and then a white marble without replacement is given by

$P(B \ and \ W)=P(B) \cdot P(W)$

Substituting the values, we get;

$P(B \ and \ W)=\frac{3}{10} \cdot \frac{2}{9}$

$P(B \ and \ W)=\frac{6}{90}$

$P(B \ and \ W)=\frac{1}{15}$

Thus, the probability of selecting a black marble and then a white marble without replacement is $\frac{1}{15}$

4 0

3 years ago

In rhombus ABCD, AB = 13 and AC = 25. Find the area of the rhombus to the nearest tenth.

const2013 [10]

Area=lengthxwidth
=25x13
=325

5 0

3 years ago