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3 years ago

Enter the trigonometric equation you would use to solve for x in the following right triangle. Do not solve the equation.

Mathematics

1 answer:

USPshnik [31]3 years ago

6 0

Answer:

x = sine 70° / 8

Step-by-step explanation:

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If f(x) = x2 – 2x and g(x) = 6x + 4, for which value of x does (f + g)(x) = 0?

Anna [14]

Answer:

Answer is - 2.

Step-by-step explanation:

(f+g) (x)=f(x) +g(x)=x^2 -2x +6x+4

=x^2 +4x+4=0

If x=-4, then (f+g) (-4) =16-16+4=4

if x=-2, then (f+g) (-2)=4-8+4=0

5 0

3 years ago

Determined the quadrant for an angle with the following characteristics: cotθ>0 and cscθ>0.

oee [108]

$\csc\theta=\dfrac1{\sin\theta}>0\implies\sin\theta>0$

This happens whenever the terminal point of $\theta$ lies in either the first or second quadrants.

Meanwhile,

$\cot\theta=\dfrac1{\tan\theta}=\dfrac{\cos\theta}{\sin\theta}>0\implies\cos\theta>0$

since you already know sine is positive. Cosine is positive when the angle lies in the first or fourth quadrant.

Sine and cosine are both positive only when $\theta$ is the first quadrant, which means this angle's terminal point lies in the first quadrant (A).

6 0

3 years ago

Read 2 more answers

My teacher saysni should know this but i dont. 2+2=?

yanalaym [24]

Answer: 4

Step-by-step explanation:

2+2=4

1+1+1+1=4

6 0

2 years ago

Read 2 more answers

Which number produces an irrational number when added to 0.4?

Bingel [31]

Answer:

Where a and b are whole numbers. π is an irrational number when it is added to 0.4 we will get an irrational number . π+0.4=3.5415... The division is not coming to end and so we ger an irrational number.

hope u find this helpful!

7 0

2 years ago

Can you do this please need it done by midnight<br><br>

deff fn [24]

<h3><u>Answer:</u></h3>

$\boxed{\pink{\sf\leadsto Value \ of \ x \ is \ 24^{\circ}}}$

<h3><u>Step-by-step explanation:</u></h3>

In the given parallelogram we can see that , <B is 5x° and <C is equal to 2x + 12°.

And these two are co - interior angles . And sum of co - interior angles is 180°.

Hence , here

$\tt:\implies \angle DCB + \angle ABC = 180^{\circ} \\\\\tt:\implies (2x + 12)^{\circ} + 5x^{\circ}=180^{\circ} \\\\\tt:\implies 7x = (180 - 12 )^{\circ} \\\\\tt:\implies 7x = 168^{\circ} \\\\\tt:\implies x =\dfrac{168^{\circ}}{7} \\\\\underline{\boxed{\red{\tt\longmapsto x = 24^{\circ}}}}$

<h3><u>Hence the value of x is 24°</u><u>.</u></h3>

$\rule{200}2$

4 0

3 years ago