20 POINTS
Verify which of the following are identities.
1) 8 cos theta tan theta csc theta=8

9514 1404 393

Answer:

  see attached

Step-by-step explanation:

It can be convenient to use mental arithmetic methods* to fill in this table.

Since the relationship is proportional the y-value for x=4 will be half that for x=8, so will be 224/2 = 112. Similarly, the y-value for x=2 will be half that for x=4, so will be 112/2 = 56.

Then the y-value for x=6 will be the sum of the y-values for x=2 and x=4, so will be 112 +56 = 168.

If you actually care to find the "unit rate," you can divide the y-value for x=2 by 2 to get the corresponding y-value for x=1: 56/2 = 28. The unit rate is 28.

_____

* Multiplication or division by 2 is simply a matter of doubling or halving. In most cases, it is easy to double a number, or to compute half of it. (If it isn't, you need to review your arithmetic facts.)

Answer:

Step-by-step explanation:

look at each picture to see what they are stating is the same in each of the triangles... the marks thur the lines means they are the same length, or the double or triple arcs in the angles means those are the same.  so if there are two sides that are the same... you can say SSS , if there are two angles that are the same you can say  ASA  .  the one where there is one side and one angle the same  you can say SAS .... hmmm  kinda get it?

Answer: the answer is 11 :)

Step-by-step explanation: I hope this helped!

Answer:

11

Step-by-step explanation:

19 - 7 = 12 - 15 = -3 + 14 = 11

or, if your brain likes it better, add the positives, then add the negatives, then subtract:

19 + 14 = 33

-7 -15 = -22

33 - 22 = 11

Answer: 1. P= 18m A= 72m

               2. P= 7in A= 12 in

               3. P= 18cm A= 81cm

Step-by-step explanation: For the P or Perimeter you need to add both of the numbers around the box. For A or the area you need to multiply the numbers on the box. You can also find that in the reading above the problem.

Hope this helps!

Answer:

3/5

Step-by-step explanation:

m = y2-y1 / x2 - x1

6-3 / 3 - -2 = 3/5

Answer:

m= [tex]\frac{3}{5}[/tex]

hope this helps!

Step-by-step explanation:

Answer:

Im sorry if I'm wrong but I think it's 300+160=460

Answer:

yes your correct  but wrong

Step-by-step explanation:

To find  the area that's covered in corn you need to first write your fraction.

160/300

After you do that you have to turn it into a decimal.

.53333...

After that you need to turn it into a percent so your final answer will be....

53.333...%

BTW try looking to see if you need to round, normally it tells you to do that

Answer:-5+x<-1

Step-by-step explanation:

Answer:

H. -5 + x < -1

Step-by-step explanation:

Okay so let's first look at our little graph thing. What is it saying? It's telling us that what ever x is, it is NOT 4 (because the circle is not filled in) and it is less than 4 (because it's all shaded in before 4). Now that we know this, lets look at our possible answers.

F. x - 3 < 7

Now, for all of these possible answers, we can solve them exactly like normal equations (like x - 3 = 7).

x - 3 < 7

[add 3 to both sides to leave the x by itself]

x < 10

Whoa, that's not right! We don't even have 10 on our graph, so F is out of the running.

G. x + 6 [tex]\leq[/tex] 10

Okay, let's work smarter, not harder here. So we can see that there is a greater than or equal to sign there. So even if we solve it and we get 4 as the answer, our graph doesn't include 4. So we can throw this answer out right away.

H. -5 + x < -1

Solve like a normal equation in the first one.

-5 + x < -1

[add 5 to both sides to leave the x by itself]

x < 4

Hey! We got something! So let's read this with words. So whatever x is, it does not include 4, and is less than 4. So now looking back on our first brainstorm of the graph, this is in line with what we want.

So this is the answer! Yay!

Just for fun let's look at the last possible answer.

I. x - 8 > -4

Again, solve like a normal equation.

x - 8 > -4

[add 8 to both sides to leave x by itself]

x > 4

Oh! Another 4! But this time the sign is different. Let's read it again with words. So whatever x is, it does not include 4 (ok, good), and is greater than 4 (oh, not good). Our graph showed us that x is less than 4. So this answer is not the answer.

So again, we keep H. as our correct answer.

Answer:

40cm square

Step-by-step explanation:

10x8cm=80 cm/2=40cm square

Answer:80cm

Step-by-step explanation:Area=[tex]\frac{dxd}{2}[/tex]

10cm x 8cm=80cm

Answer:

x^2-9x+2

Step-by-step explanation:

Remove the unnecessary parenthesis.

So 3x^2-9x+4-2x^2+2

Then just combine like terms.

Answer:

1st Picture: d = -16

2nd Picture: g = -13.8

Step-by-step explanation:

1st Picture: Divide both sides by -11 to balance both sides and get the answer.

2nd Picture: Subtract 1.2 from both sides.

Answer:

Question 6:

We have -12.6 = g + 1.2, so we move the 1.2 to the left side to get -13.8 = g because when you move a number you are essentially minusing that number so 1.2 becomes -1.2 .

Question 7:

We have 176 = -11d so we divide by -11 to get -16 = d.

Hope this helped!

Answer:

5 sweat shirts- $100

8 sweat shirts- $160

9 sweat shirts- $180

12 sweat shirts- $240

Step-by-step explanation:

Each sweat shirt costs $20

Answer:16.7%

Step-by-step explanation:

150         x

_____=______

180          100

150(100)=180(x)

15000=180x

__________

180         180

x=83.3 repeated

100-83.3=16.7

UVW and HIJ are congruent

Answer:

2y-x=0

Step-by-step explanation:

Please mark as brainliest

Step-by-step explanation:

(5+6+7)*2 = 36 correct answer

Answer:

36

Step-by-step explanation:

Answer:

Step-by-step explanation:

It depends on the triangle.

If a is the longest side then it's true, but usually when we talk about Pythagorean theorem we mean that c is the longest side of the right triangle. So:

Answer:

Step-by-step explanation:

y=mx+b where m is the slope and b is the y intercept, value of y when x=0

11.

Since we are given the point (0,4) we already know that b=4

slope is m=(y2-y1)/(x2-x1), using our two points (0,4)(-1,3) we have

m=(3-4)/(-1-0)

m=-1/-1=1 so the line is

y=x+4

12.

Again they gave us point (0,1) so we know b=1, from points (0,1)(4,2) we find

m=(2-1)/(4-0)

m=1/4 so our line is

y=x/4+1 (or more neatly)

y=(x+4)/4

Answer:

1)2.83

2)-5.74

3)4.16

I hope this help

9514 1404 393

Answer:

  y = 95°

  x = 60°

Step-by-step explanation:

The applicable theorem is the one that says the exterior angle (120°) is the sum of the remote interior angles:

  120° = 25° +y

  95° = y . . . . . . . . . . subtract 25° from both sides

_____

If you like, you can get there by calculating x (or not):

  x = 180° -120°

  y = 180° -25° -x = 180° -25° -(180° -120°)

  y = 120° -25° . . . . . simplify — notice we didn't actually have to compute x

Answer:

3

Step-by-step explanation:

Answer:

Step-by-step explanation:

to find the angle A

360-230=130

angle B=180-130=50

Answer:

Firas = $320

Nabil = $80

Step-by-step explanation:

Firas = 4x

Nabil = x

x + 240 = 4x

3x = 240

x = $80

Firas = $240 + $80 OR $80 x 3 = $320

Nabil = $80

Hope that helps!

Answer:

A = 45 cm²

Step-by-step explanation:

The area (A) of a trapezium is calculated as

A = [tex]\frac{1}{2}[/tex] h( b₁ + b₂)

where h is the height and b₁, b₂ the parallel bases

Here h = 5, b₁ = 10 and b₂ = 8 , then

A = 0.5 × 5 × (10 + 8) = 0.5 × 5 × 18 = 45 cm²

Range is about subtracting the lowest number from the highest number!

The lowest number is 54.

The highest number is 65.

65 - 54 = 11

Answer:

11

Step-by-step explanation:

Subtract the highest and lowest values 65-54, and you get 11

Answer:

The answer is: (3x+4y)^2

Step-by-step explanation:

hope this helps      :)

Answer:

sas

Step-by-step explanation:

Answer:

one attachment ex picture

Answer:

y+5

Step-by-step explanation:

Answer: y+5

Step-by-step explanation:hope this help