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Anvisha [2.4K]
3 years ago
15

Which choice is the correct answer?​

Mathematics
1 answer:
Ulleksa [173]3 years ago
6 0

Answer: Your answer is A. y= 2.5sin x

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Explain why x^2 = -81 does not have a solution.
Evgesh-ka [11]

Remember, the graph of a line represents every point that is a possible solution for the equation of that line. So when the graphs of two equations cross, the point of intersection lies on both lines, meaning that it is a possible solution for both equations. When the graphs of two equations never touch, there are no shared points and there are no possible solutions for the system. When the graphs of two equations lie on top of one another, they share all their points and every one is a possible solution.

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6 0
3 years ago
Paula ran a total of 12 miles over the course of 2 track practices. What is the unit rate?
liq [111]

Answer:

\frac{6}{1}

Step-by-step explanation:

To find the unit rate we need to divide the # of miles over the number of practices to get the # of miles ran in a single practice:

\frac{12}{2}=\frac{6}{1}

Hope this helps!

5 0
3 years ago
Read 2 more answers
What is the standard form and the factored form
Feliz [49]

Answer:

  • See below

Step-by-step explanation:

<u>The factored form, use variables/numbers outside the square:</u>

  • (x + 6)(x - 4)

<u>The standard form, use variables/numbers inside the square:</u>

  • x² + 6x - 4x - 24 = x² + 2x - 24
3 0
2 years ago
A new movie theater has a deal for watching lots of movies. You pay 20 dollars at the beginning of the month and then you pay ju
fenix001 [56]

20 + 4 * 9

20 + 36

$56

5 0
2 years ago
Find the surface area of a cylinder with a base radius of 2 cm and a height of 8 cm
gtnhenbr [62]

Answer:

82.6cm2

Step-by-step explanation:

\pi {r}^{2}  + \pi {r}^{2}  + 2  \pi \: r h

\pi =  \frac{22}{7}

radius =2cm

height=8cm

( \frac{22}{7}  \times 2 \times 2 )+ ( \frac{22}{7}  \times 2 \times 2) + (2 \times  \frac{22}{7}  \times 2 \times 8)

Multiplying the numerators and The whole numbers, we have

\frac{88}{7}  +  \frac{88}{7}  +  \frac{402}{7}

Since the denominators of the fractions are the same, we add the numerators.

\frac{88 + 88 + 402}{7}  =  \frac{578}{7}  \\ which \: becomes \\

82.57{cm}^{2}  = 82.6 {cm}^{2}

6 0
2 years ago
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