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Leto [7]
3 years ago
13

Can anybody answer this question?I still don't understand maths​

Mathematics
1 answer:
meriva3 years ago
6 0

Step-by-step explanation:

\frac{3}{x - 4}   =  \frac{2}{x + 1}  \\3 (x + 1) = 2(x - 4) \\ 3x + 3 = 2x - 8 \\ 3x - 2x =  - 8 - 3 \\ x =  - 11

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Select the two values of x that are roots of this equation.<br> 2x2 + 7x + 6 = 0
SVEN [57.7K]
Hopes this helps:

Answer: x = -10/7

1. Simplify 2 • 2 to 4
4 + 7x + 6 = 0

2. Simplify 4 + 7x + 6 to 7x + 10.
7x + 10 = 0

3. Subtract 10 from both sides.
7x = -10

4. Divide both sides by 7.
X = -10/7
3 0
3 years ago
URGENT!! Please answer this! (In your own words) The best answer gets BRAINLIEST!
Fantom [35]

Answer:

The area is 97.5.

Step-by-step explanation:

The formula for finding the area of a rectangle is Length x Width.

At the bottom it says 5 ft and 10 ft. 10 + 5 = 15, therefore the length is 15.

On the right it says 12 ft, therefore the width is 12 ft.

Since the formula is Length x Width, I did 15 x 12, I attached a file below showing the multiplication process.

15 x 12 = 180.

Therefore, the area of the rectangle is 180.

But, from what it appears from the picture, it's only the shaded area needed.

So, the unshaded areas needed to be subtracted from the rectangle.  

Starting with the triangle on the right, the area for a triangle is the base times the height divided by 2, 10 is the base and 12 is the height. 10 x 12 / 2 = 60, multiplication shown below.

The two sides are the same length, making the height for the other side 12 as well.

According to the rectangle, 3 feet does not belong there.

12 - 3 = 9 ft.

Now, the base is 5 ft and the height is 9 ft.

The formula is base x height divided by 2.

5 x 9 / 2 = 22.5, multiplication shown below.

Now, I had known that the 2 shaded areas were 22.5 and 60.

So, I did 180 - 60 - 22.5 = 97.5

Therefore, the area for the shaded part of the rectangle is 97.5.

I sincerely hope this helped! Have a great day, and good luck! :) :)

7 0
3 years ago
X/3 = -7.x/3 is a fraction
balu736 [363]

Step-by-step explanation:

Yes it is

fraction......

3 0
3 years ago
Read 2 more answers
Anyone know this? I’m having a hard time with it
Orlov [11]

Answer:

75π

Step-by-step explanation:

The formula for volume of a cone is  (r^2h\pi)/3. If you substitute 5 into the radius and 9 into the height, you get (5^2*9\pi)/3=25*9\pi/3=25*3\pi=75\pi

6 0
3 years ago
Kelly makes an income of $30,000 a year after taxes. Her rent is 30% of her annual salary. How much money does Kelly have to pay
Ivenika [448]

<u>Answer</u>

\boxed{750\text{ dollars}}


Kelly pays 750 dollars for rent each month.


<u>Explanation </u>

1) 30,000 * 0.3 = 9000


9,000 is the rent from her annual salary.


2) Since the question is asking for the amount money Kelly pays for every month we would need to simply do 9000 \div 12


Thus, Kelly pays 750 dollars for rent each month.

6 0
4 years ago
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