Madeline took friends out for

Mathematics

1 answer:

balandron [24]2 years ago

8 0

Answer: First you have to take 20% and make it into a fraction 1/5.

Then you multiply 46.5 and multiply it by 1/5 and get 9.3

Add $46.50 and $9.30 and get $55.80

Step-by-step explanation: Hope this helps!! <3

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One more time!

CaHeK987 [17]

Since q(x) is inside p(x), find the x-value that results in q(x) = 1/4

$\frac{1}{4} = 5 - x^2\ \Rightarrow\ x^2 = 5 - \frac{1}{4}\ \Rightarrow\ x^2 = \frac{19}{4}\ \Rightarrow \\
x = \frac{\sqrt{19} }{2}$

so we conclude that
$q(\frac{\sqrt{19} }{2} ) = 1/4$

therefore

$p(1/4) = p\left( q\left(\frac{ \sqrt{19} }{2} \right) \right)$

plug $x=\sqrt{19}/2$ into p( q(x) ) to get answer

$p(1/4) = p\left( q\left( \frac{ \sqrt{19} }{2} \right) \right)\ \Rightarrow\ \dfrac{4 - \left( \frac{\sqrt{19} }{2}\right)^2 }{ \left( \frac{\sqrt{19} }{2}\right)^3 } \Rightarrow \\ \\ \dfrac{4 - \frac{19}{4} }{ \frac{19\sqrt{19} }{8}} \Rightarrow \dfrac{8\left(4 - \frac{19}{4}\right) }{ 8 \cdot \frac{19\sqrt{19} }{8}} \Rightarrow \dfrac{32 - 38}{19\sqrt{19}} \Rightarrow \dfrac{-6}{19\sqrt{19}} \cdot \frac{\sqrt{19}}{\sqrt{19}}\Rightarrow$

$\dfrac{-6\sqrt{19} }{19 \cdot 19} \\ \\ \Rightarrow -\dfrac{6\sqrt{19} }{361}$

$p(1/4) = -\dfrac{6\sqrt{19} }{361}$

3 0

3 years ago

Four more than three times n equals -5

Verizon [17]

3n+4=-5

do the opposite of adding 4. this means you have to subtract 4 from 4. whatever you do to the problem, you must do to the answer. now subtract 4 from -5.

-5-4=-9

since 4-4=0, we can take 4 out of the equation. now you have:

3n=-9

now divide -9 by 3

-9/3=-3

n=-3

hope this helps :)

5 0

3 years ago

45 female signers, 40 male singers, 15 instrumental, what is probability that a set of 3 songs contain 1 male, 1 female, 1 inst.

Fantom [35]

Answer:

5 I think

Step-by-step explanation:

8 0

3 years ago

Alicia uses 7.4 pints of white paint and blue paint to paint her bedroom walls. 2 5 of this amount is white paint, and the rest

aalyn [17]

Answer:

4.9

Step-by-step explanation:

6 0

2 years ago

Solve for the unknown. 3x^3=812^x-5 5x=25^3x+5 27^4x=9^x+1 3^x=9^x+5

sesenic [268]

Sorry it's quite complex, simplify then... had to use an nspire

1. x=1.22248
2. x=15624.8
3. x=0.057522 (shown in picture)
4. x=-0.732487

too bad i cant upload more than 1 pic

7 0

3 years ago