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Fiesta28 [93]
3 years ago
11

Can you help me with it please​

Mathematics
1 answer:
Kisachek [45]3 years ago
4 0

Answer:

\frac{20}{29}

Step-by-step explanation:

Equation of unit circle is:

x^2 + y^2 = 1

Plug y = \frac{-21}{29} in above equation.

x^2 + \bigg( \frac{-21}{29}\bigg)^2 = 1\\\\x^2 +  \frac{441}{841} = 1\\\\x^2   = 1-\frac{441}{841}\\\\x^2   = \frac{841-441}{841}\\\\x^2   = \frac{400}{841}\\\\x  =\pm\sqrt{ \frac{400}{841}}\\\\x  =\pm\frac{20}{29}\\\\

Since, point P is in the fourth quadrant.

Therefore, x - coordinate should be positive.

\huge \red {\boxed {\therefore x  =\frac{20}{29}}} \\\\

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Andrew has a cell phone plan that provides 300 free minutes each month for
Mekhanik [1.2K]

Answer:

Andrew has a cell phone plan that provides 300 free minutes each month for a flat rate of $19. For any minutes over 300, Andrew is charged $0.39 per minute. Let x be the number of minutes Andrew uses per month and f(x) be the charges based on Andrew's cell phone plan. If  then If  then first 300 minutes are free and each minute of next (x-300) minutes costs $0.39, therefore Hence, { 19 + 0.39(x - 300), x > 300

Hoped I helped

4 0
3 years ago
olive's garden in only 10y2 and the watermelon plants she wants to grow required 2.5y2 each.how many watermelon plants can she g
DerKrebs [107]

Answer:

4 plants

Step-by-step explanation:

In this problem, we are given the total area of the garden, which is:

A=10y^2

The number of plants that can fit inside the garden is given by the equation:

A=na

where:

n is the number of plants

a is the area of each plants

In this problem, the area of each plant is

a=2.5y^2

Therefore, we can re-arrange the equation to find the number of plants that can fit:

n=\frac{A}{a}=\frac{10}{2.5}=4

8 0
3 years ago
Help me out, thanks.
fiasKO [112]
30x^3 10x
i’m sorry if that doesn’t help but it works out right to me
have a good day hun xox
5 0
3 years ago
Read 2 more answers
your bakery is in a large shopping center. The entrie shopping center is 4,500 square feet. Your bakery takes up only 1/10 of th
Kisachek [45]
So if the bakery is 1/10 of the shopping center's area, and the shopping center's area is 4500 feet, then the bakery's area is 1/10th of 4500 feet. 1/10th of 4500 feet is 450.

A more in-depth explanation:

A fraction is:
x/y
where y would equal how many parts you wanted to split a number into and x would equal how many parts you want to take.

So splitting 4500 into 10 parts and then taking one is basically 1/10 of 4500.

4500 in 10 parts, one would be 450.
5 0
3 years ago
Write a reply to this letter informing the immediate steps that would be taken to solve the problem.
zlopas [31]
<h2>HELLO MATE</h2>

<h3>HERE IS YOUR ANSWER</h3>

CAN YOU PLEASE INBOX ME ??

8 0
4 years ago
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