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yaroslaw [1]
3 years ago
11

What is 3/x+6=x/9 ? add

Mathematics
1 answer:
Mkey [24]3 years ago
4 0

Let's solve your equation step-by-step.

3x+6=x9

Step 1: Cross-multiply.

3x+6=x9

(3)*(9)=x*(x+6)

27=x2+6x

Step 2: Subtract x^2+6x from both sides.

27−(x2+6x)=x2+6x−(x2+6x)

−x2−6x+27=0

Step 3: Factor left side of equation.

(−x+3)(x+9)=0

Step 4: Set factors equal to 0.

−x+3=0 or x+9=0

x=3 or x=−9

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A point is randomly chosen in the diagram shown below.
Anni [7]

Answer:

The likelihood that a point chosen inside the square will also be inside the circle: 78.54%

Step-by-step explanation:

  • Let x is the side of the suqare

=> the area of the square is: x^{2}

  • Let d is the diameter of the circle

=> the area of the circle : \frac{1}{4} d^{2}π

However, d=x because of the square property  

<=> the area of the circle : \frac{1}{4} x^{2}π

The likelihood that a point chosen inside the square will also be inside the circle:

the area of the circle / the area of the square

= \frac{1}{4} x^{2}π / x^{2}

= \frac{1}{4} π *100%

= 0.7854 * 100%

= 78.54%

8 0
3 years ago
Read 2 more answers
Select the correct answer from each drop-down menu. A bag contains one green ball, one yellow ball, one red ball, and one blue b
Iteru [2.4K]

Answer:Y, R, B, G

Step-by-step explanation:

Order matters since the ball is being replaced each time. This is all the possible combinations to take 2 balls with replacement, so you can look at the list and see that RR, RB, and RG are listed. The only other combination when choosing a red first would be to pick a yellow, so RY. This is the same pattern for the others also. Look at the list and see what combinations are already listed.

6 0
3 years ago
Someone help me please!
8090 [49]

Answer:

7/3

1

1/2

undefined

Step-by-step explanation:

1/1 ÷ 3/7 = 7/3 because you multiply the 1st fraction by the reciprocal of the 2nd

1/1 = 1

1/2 = 1/2

1/0 = undefined;  anything divided by zero is considered to be undefined

5 0
2 years ago
What is the point in the line<br><br> y-5=2(x+6)
Vinil7 [7]
Point slope form will give you the point
y - y1 = m(x- x1)
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in this case the point is (-6,5)
5 0
2 years ago
a standard deck of cards with 26 red cards and 26 black cards is split into two piles, each having at least one card. In pile A
Fantom [35]

Answer: There are a total of 22 CARDS in pile B

Step-by-step explanation:

It is already certain that the total number of cards that are in pile "A" must be a multiple of 5 due to the fact that there are four times as many black cards as red cards.

If there are 26 red cards and 26 black cards altogether in the piles and each pile must have at least one card, then let's look at the possibilities:

4 black cards, 1 red card in pile A, it will then result to 22 black cards and 25 red cards in pile B. Recall that the number of red cards in pile B must be a multiple of the number of cards in pile B

We check. 25/22 .... (Doesn't agree to multiple rule)

We try another way, 8 black cards, 2 red cards in pile A which then results to 18 black cards and 24 red cards in pile B

(24/18) doesn't agree.

Again 12 black cards, 3 red cards in A, 14 black cards and 23 red cards in pile B... doesn't agree

16 black cards, 4 red cards in pile A, 10 black cards and 22 red cards in pile B... doesn't agree

20 black cards, 5 red cards in pile A, 6 black cards and 21 red cards in pile B... doesn't agree

24 black cards, 6 red cards in pile A, 2 black cards and 20 red cards in pile B... We check if the number of red cards in pile B is a multiple of the number of black cards in pile B:

20/2 = 10 (it agrees to the multiple rule).

So the number of cards in pile B = (number of red cards there + number of black cards there)

= 20 + 2

= 22 cards are in pile B altogether

4 0
3 years ago
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