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3 years ago

Which answer !!!!!!!!!

Mathematics

1 answer:

ycow [4]3 years ago

3 0

The first answer, answer A. It's easy.

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Is area a function of the radius ? Is radius a function of area?

Mnenie [13.5K]

Answer: The area (A) of a circle is a function of its radius (r) and is given by the function A = f(r) = πr2.

Step-by-step explanation: google help

4 0

3 years ago

If f(x)=V1/2x-10+3, which inequality can be used to find the domain of f(x)

katen-ka-za [31]

Answer:

the pica

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

what is area of the triangle in a coordinate plane. a 9.0. b 14.0 c16.5. d 24.5

Tresset [83]

Answer:

Step-by-step explanation:

It's the right triangle.

The formula of an area of a right triangle:

$A=\dfrac{(leg)(leg)}{2}$

Look at the picture.

We have

$leg=3,\ leg=11$

Substitute:

$A=\dfrac{(3)(11)}{2}=\dfrac{33}{2}=16.5$

4 0

3 years ago

The angle θ 1 is located in Quadrant IV, and cos ⁡ ( θ 1 ) = 9/ 19 , theta, start subscript, 1, end subscript, right parenthesis

Firdavs [7]

Answer:

$sin\theta_1 = - \frac{2\sqrt{70}}{19}$

Step-by-step explanation:

We are given that $\theta_1$ is in <em>fourth</em> quadrant.

$cos\theta_1$ is always positive in 4th quadrant and

$sin\theta_1$ is always negative in 4th quadrant.

Also, we know the following identity about $sin\theta$ and $cos\theta$ :

$sin^2\theta + cos^2\theta = 1$

Using \theta_1 in place of \theta:

$sin^2\theta_1 + cos^2\theta_1 = 1$

We are given that $cos\theta_1 = \frac{9}{19}$

$\Rightarrow sin^2\theta_1 + \dfrac{9^2}{19^2} = 1\\\Rightarrow sin^2\theta_1 = 1 - \dfrac{81}{361}\\\Rightarrow sin^2\theta_1 = \dfrac{361-81}{361}\\\Rightarrow sin^2\theta_1 = \dfrac{280}{361}\\\Rightarrow sin\theta_1 = \sqrt{\dfrac{280}{361}}\\\Rightarrow sin\theta_1 = +\dfrac{2\sqrt{70}}{19}, -\dfrac{2\sqrt{70}}{19}$

$\theta_1$ is in <em>4th quadrant </em>so $sin\theta_1$ is negative.

So, value of $sin\theta_1 = - \frac{2\sqrt{70}}{19}$

6 0

3 years ago

Plz answer it’s an iready

Dafna11 [192]

Answer:

6(6x + 4y), 12(3x + 2y), 4(9x + 6y)

Step-by-step explanation:

The expressions are equivalent to 36x + 24 y

Hope this helps! :)

5 0

2 years ago