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3 years ago

Which graph is correct

Mathematics

1 answer:

ELEN [110]3 years ago

6 0

C is the best answer

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Book $22.50 markup percent 42% what is the markup and retail price.

sertanlavr [38]

I multiplied, I converted the percentage to a decimal .42
Your answer should be 9.45.

8 0

3 years ago

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Please help!! x = 2 - 3 cos t, y = 1 + 4 sin t in rectangular form?<br><br> thank you! :)

sukhopar [10]

Answer:

$\frac{(x-2)^2}{9}+\frac{(y-1)^2}{16}=1$

Step-by-step explanation:

$x=2-3\cos(t)$

$y=1+4\sin(t)$

Let's solve for $\cos(t)$ in the first equation and then solve for $\sin(t)$ in the second equation.

I will then use the following identity to get right of the parameter, $t$ :

$\cos^2(t)+\sin^2(t)=1$ (Pythagorean Identity).

Let's begin with $x=2-3\cos(t)$ .

Subtract 2 on both sides:

$x-2=-3\cos(t)$

Divide both sides by -3:

$\frac{x-2}{-3}=\cos(t)$

Now time for the second equation, $y=1+4\sin(t)$ .

Subtract 1 on both sides:

$y-1=4\sin(t)$

Divide both sides by 4:

$\frac{y-1}{4}=\sin(t)$

Now let's plug it into our Pythagorean Identity:

$\cos^2(t)+\sin^2(t)=1$

$\frac{x-2}{-3})^2+(\frac{y-1}{4})^2=1$

$\frac{(x-2)^2}{(-3)^2}+\frac{(y-1)^2}{4^2}=1$

$\frac{(x-2)^2}{9}+\frac{(y-1)^2}{16}=1$

5 0

3 years ago

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Tim has 3 blue shirts and 2 red shirts in a drawer. He randomly picks one shirt, puts it back, and then picks another shirt. Wha

suter [353]

Answer:

D-6/25

Step-by-step explanation:

3 0

3 years ago

Thanks! Help is appreciated

Viefleur [7K]

Answer:

Step-by-step explanation:

sorry if i am incorrect but that is my best guess

3 0

3 years ago

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Graph the system of

9966 [12]

Answer:

(-0.2, 2.8)

General Formulas and Concepts:

<u>Algebra I</u>

Reading a Cartesian plane
Coordinates (x, y)
Solving systems of equations by graphing

Step-by-step explanation:

Where the 2 lines intersect is the solution to the systems of equations.

6 0

3 years ago