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Nana76 [90]
3 years ago
5

HELP!!!! I can’t figure this out

Mathematics
1 answer:
grin007 [14]3 years ago
5 0

Answer:

A.\,\orange{ \bold{ \frac{x - 3}{3x + 1} }}

Step-by-step explanation:

\frac{x + 2}{ {x}^{2} + 5x + 6 }  \div  \frac{3x + 1}{ {x}^{2}  - 9}  \\  \\  = \frac{x + 2}{ {x}^{2} + 3x  + 2x+ 6 }  \div  \frac{3x + 1}{ {x}^{2}  -  {(3)}^{2} }  \\  \\  = \frac{\cancel{x + 2}}{ \cancel{{({x}+ 3)}} \cancel{(x+ 2) }}   \times   \frac{\cancel{( {x}  +   3)}( {x} -  {3)}}{3x + 1}  \\  \\  =  \purple{ \bold{ \frac{x - 3}{3x + 1} }}

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Mjhs is refinishing a basketball court and decided to paint everything shown below blue. How many square feet will be painted bl
SashulF [63]

Answer:

<h2>Mjhs needs 189.25 square feet of blue paint, approximately.</h2>

Step-by-step explanation:

As you can observe in the image attached, the basketball court is a composite figure formed by a rectangle and half of a circle.

The rectangle has dimensions of 10 feet by 15 feet. The circle has a diameter of 10 feet.

The expression of this composite area would be

A= w \times l + \frac{\pi (\frac{l}{2} )^{2} }{2}

Where w = 15 \ ft and l = 10 \ ft. Replacing these values, we have

A= 15 \times 10 + \frac{3.14 (\frac{10}{2} )^{2} }{2}\\ A=150 + \frac{3.14 \times 25}{2}=150+39.25 \\ A \approx 189.25 \ ft^{2}

Therefore, Mjhs needs 189.25 square feet of blue paint, approximately.

8 0
3 years ago
The cost of 5kg of rice is Rs.425. find the cost of 1kg of rice ​
DaniilM [7]

Answer:

Rs 85

Step-by-step explanation:

Cost of 5kgs of rice = Rs 425

Cost of 1 kg of rice = 425/5

= Rs 85

So, the cost of a kg of rice is Rs 85

8 0
2 years ago
Determine the number of outcomes in the event. Decide whether the event is a simple event or not. You randomly select one card f
Marat540 [252]

Answer:

No we can consider A as single event. See the explanation below

Step-by-step explanation:

Let's define the event A as:

A=" Select a 4 from a standard deck of 52 cards"

We know that in a standard deck we have 4 different types of 4, spade, heart, diamond and club.

And by definition of simple event we need to have just one possible outcome in the experiment, and on this case we have 4 possible options for event A, so for this reason the event A can't be considered as simpl event.

3 0
4 years ago
How do I calculate 1/4-1/10 ?
Viktor [21]

Answer:

Hello there! I'm Ashlynn I'm always ready to help anyone in need of it!

__________________________________________________

(1 / 4) - (1 / 10) = 0.15

__________________________________________________

Calculate definition, to determine or ascertain by mathematical methods; compute: to calculate the velocity of light.

__________________________________________________

<em>“It makes a big difference in your life when you </em>

<em>stay positive.”</em>

                                                 - <em>Ellen DeGeneres</em>

<em>___________________________________________________</em>

<em>           </em>

<em>                                               </em><em> Have a great day!! </em>

<em>                                                                      </em><em> - Ashlynn</em>

<em />

                                                       (*^-^*)

8 0
3 years ago
Please help and give explanation
Firlakuza [10]

Answer:

100 mins

Step-by-step explanation:

total no of gallons pool can hold=4500

gallons pool already holds=1500

rate of adding water= 30 gallons per min

time he can continue filing= 4500-1500/30

=3000/30

=100 minutes (m value)

correct me if I'm wrong appreciate me if I'm good

8 0
3 years ago
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