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3 years ago

Question is In the image no need for step by step just the answer

Mathematics

1 answer:

Delicious77 [7]3 years ago

7 0

Answer:

Step-by-step explanation:

-4x+5y=10. -4x+5y=10. -4x+5y=10

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Does the mapping diagram represent a function? Why or why not?

borishaifa [10]

Answer:

The answer is B

Step-by-step explanation:

In a function every X must have only 1 Y. In this example the x 3 has to y's 10 and 5, therefore making it not a function.

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3 years ago

X = -9 and y = 2 plz help me plz

olasank [31]

Answer: 9 and -2

Step-by-step explanation: because of the way it's writen.

5 0

3 years ago

Let's suppose someone flips a fair coin three times. 1. How many outcomes are possible? [a] 2. What is the probability of gettin

andrey2020 [161]

Probability helps us to know the chances of an event occurring. There are 8 outcomes.

<h3>What is Probability?</h3>

Probability helps us to know the chances of an event occurring.

$\rm Probability=\dfrac{Desired\ Outcomes}{Total\ Number\ of\ outcomes\ possible}$

Let's suppose someone flips a fair coin three times.

1. The outcomes of the coins are,

Therefore, there are 8 outcomes.

2. The probability of getting exactly one tail is,

P(X=1) = 2/8 = 1/4

3. The probability of getting at most two tails is,

P(X≤2) = P(X=1) + P(X+2) = 1/4 + 1/2 = 3/4

Learn more about Probability:

brainly.com/question/795909

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2 years ago

Is A’B’C’ congruent to ABC explain why or why not

Pachacha [2.7K]

Answer:

Is there a picture?

Step-by-step explanation:

please add a picture. You can also see if the transition is congruent by counting

3 0

3 years ago

What is the equation of the quadratic graph with a focus of (4,3) and a directrix of y=-6

Rufina [12.5K]

Answer:

f(x) = (1/18)x^2 - (4/9)x - 65/18

Step-by-step explanation:

Since the focus (4,3) is higher up than is the directrix y = -6, the vertex is between y = -6 and y = 3, halfway between these values, to be exact: y = -3/2. Thus, the y-coordinate of the vertex is (-6 + 3/2), or -4.5. The x-coordinate of the vertex is 4, which comes from that 4 in (4,3). Thus, the vertex is (4, -4.5) or (4, -4 1/2).

The standard equation for a vertical parabola with vertex at (h,k) is:

4p(y-k) = (x-h)^2, where p is the distance between vertex and focus or between vertex and directrix. In this case p = 4.5. Thus, the equation of this quadratic is 4(4.5)(y - [-4.5]) = (x - 4)^2, or

18(y+4.5) = (x-4)^2, or y+4.5 = (1/18)(x-4)^2.

Let's expand this and rewrite the result as a quadratic equation in standard form y = ax^2 + bx + c:

y + 4.5 = (1/18)(x^2 - 8x + 16). Multiplying all terms by 18 to remove both fractions, we get:

18y + 81 = x^2 - 8x + 16. Rearranging these terms, we get:

18y = x^2 - 8x + 16 - 81, or

18y = x^2 - 8x - 65, or

y = f(x) = (1/18)x^2 - (4/9)x - 65/18.

5 0

3 years ago

Read 2 more answers