The period of the function y=sin(1/4 x) is equal to

14. Order the following from least to greatest. Angles ∠B, ∠C, ∠BDC. Sides DE, EF, and DF (Choose one for Angles and one for Sid

Veronika [31]

Answer:

gggggggggggggggggggggggggggg

Step-by-step explanation:

gggggggggggggggggggggggggggggg

3 0

3 years ago

10 points!!! please help :(

daser333 [38]

To complete the identity, we need these fundamental identities:

$1)\displaystyle{sec(x)=\frac{1}{cos(x)}$

$2) cos(x-y)=cos(x)cos(y)+sin(x)sin(y)$

$\displaystyle{csc(x)= \frac{1}{sin(x)}$

Thus, by identity 1 we have:

$\displaystyle{ sec( \frac{ \pi }{2}-\theta )= \frac{1}{cos(\frac{ \pi }{2}-\theta)}$

by identity :

$\displaystyle{cos(\frac{ \pi }{2}-\theta)=cos(\frac{ \pi }{2})cos(\theta)+sin(\frac{ \pi }{2})sin(\theta)$

recall the values :

$\displaystyle{ sin(\frac{ \pi }{2})^R=sin(90^o)=1\\\\$

$\displaystyle{ cos(\frac{ \pi }{2})^R=cos(90^o)=0$ ,

so:

$cos(\frac{ \pi }{2})cos(\theta)+sin(\frac{ \pi }{2})sin(\theta)=0+sin(\theta)=sin(\theta)$

Putting all these together, we have:

$\displaystyle{ sec( \frac{ \pi }{2}-\theta )= \frac{1}{cos(\frac{ \pi }{2}-\theta)}= \frac{1}{cos(\frac{ \pi }{2})cos(\theta)+sin(\frac{ \pi }{2})sin(\theta)}= \frac{1}{sin(\theta)}}$

which is equal to $csc(\theta)$ , by identity 3

Answer: D

7 0

3 years ago

Please answer this question correctly

Oksana_A [137]

Answer: 44

EC is basically EF times 2

3 0

3 years ago

Read 2 more answers

Use the point-slope equation to identify the slope and the coordinates of a point

yanalaym [24]

Answer:

The slope of the line is 3.

The point on the line (1,4).

Step-by-step explanation:

Point Slope form is: $y-y_1=m(x-x_1)$

'm' is the slope.

(x1, y1) is the point used to make the equation.

In the equation given, 3 replaces 'm', 4 replaces 'y1' and 1 replaces 'x1'.

y - 4 = 3 (x - 1)

Therefore:

The slope of the line is 3.

The point on the line (1,4).

Brainilest Appreciated.

5 0

3 years ago

Can someone explain this to me ?

Alex Ar [27]

Suppose you had f=6, g=2, h=3 and you were asked to find

f - g - h

You would do it by substituting the given values for the letters to get

6 - 2 - 3

And this can be simplified to

1

_____

The question at hand is basically the same. You are given values of f(x), g(x), h(x) and asked to find their signed sum.

f(x) - g(x) - h(x)

= (3x+5) - (4x²-2) - (x²-3x+1) . . . . substitute the given values

= 3x + 5 - 4x² + 2 - x² + 3x - 1 . . . use the distributive property to eliminate parentheses. A minus sign in front changes the sign of every term inside parentheses.

= x²(-4-1) +x(3+3) +(5+2-1)

= -5x² + 6x + 6 . . . . . . collect terms . . . . matches the first choice

8 0

3 years ago