Enter the value of arccos(0.21) as a decimal to the nearest hundredth of a degree in the box.

Consider the triangle (in which angle4 is present)

by angle sum property,

20 + 40 + angle4 = 180

60 + angle4 = 180

angle4 = 180 - 60

angle4 = 120

Also,

angle2 = 120 (vertically opposite angles)

angle1 + angle2 = 180 (linear pair)

angle1 + 120 = 180

angle1 = 180 - 120

angle1 = 60

Answer:

28/45

Step-by-step explanation:

Dont worry i also don't feel like doing fractions most the time they can get very annoying when you have to work with a lot of them.

Answer:

36/45* 35/45

Answer:

The first one is C and I don't know what the other one is

Answer:

PAGE 1

3.) d

4.) e

PAGE 2

5.) a

6.) e

PAGE 3

1.) b

2.) d

PAGE 4

7.) Graph C

8.) Graph B

PAGE 5

9.)  Dilation with the center at the origin and a scale factor of 2.

10.) Dilation with the center at the origin and a scale factor of 1/3.

Step-by-step explanation:

PAGE 1

3.)  d

b/c the rule for x-axis is (x,y) --> (x, -y)

One of the points is (1, 1) ==> (1, -1)

4.) The rule for y-axis is (x, y) --> (-x, y)

A(-5, 3) --> A'(5, 3)

B(2, 6) --> B'(-2, 6)

C(-1, -7) --> C'(1, -7)

PAGE 2

5.) The rule for x-axis is (x,y) --> (x, -y)

A(-5, 3) ---> A'(-5, -3)

B(2, 6) ---> B'(2, -6)

C(-1, -7) ---> C'(-1, 7)

6.) The rule for 90 degrees clockwise is (x, y) --> (y, -x)

B(3, 4) ---> B'(4, -3)

PAGE 3

1.) On the transitions right is positive and left is negative

So 2 units to the right = +2

And 9 units down = - 9

So (x, y) --> (x + 2, y - 9)

2.) A is wrong b/c that translation is (x, y) ---> (x + 3, y -3)

B is wrong b/c the translation is (x, y) ---> (x + 3, y + 3)

C is wrong b/c the translation is (x, y) ---> (x - 3, y + 3)

D is correct b/c the translation is (x, y) --->(x -3 , y -3)

A(6, 6) --> A'(3, 3)   B(7, 4) --> B'(4, 1)    C(4, 4) --> C'(1, 1)

PAGE 4

7.) The rule for 90 degrees rotation counterclockwise is (x, y) --> (-y, x)

The correct graph would show A(-3, 3) ----> (-3, -3)

The only graph that shows this is Graph C

8.) The rule for 180 degrees rotation is (x, y) ----> (-x, -y)

The correct graph would show A(-3, 3) ----> A'(3, -3)

Graph B is the only one that ALL the angles follow this rule

PAGE 5

9.) It is Dilation with the center at the origin and a scale factor of 2.

B/c --> A(3, 3) ---> A'(6, 6)     B(2, 0) ---> B'(4, 0)    C(5, 2) ---> C'(10, 4)

(3*2= 6, 3*2=6)     (2*2= 4, 0*2= 0)      (5*2= 10, 2*2= 4)

10.) It is Dilation with the center at the origin and a scale factor of 1/3

B/c ---> A(-3, 6) --> A'(-1, 2)   B(12, 3) ----> B'(4, 1)   C(-6, -6) ---> C'(-2, -2)

(-3*1/3= -1, 6*1/3= 2)         (12*1/3= 4,  3*1/3= 1)        (-6*1/3= -2, -6*1/3= -2)

Hope this helps ya!!!

Answer is attached below. Hope this helps.

Answer:

everyone has a different meaning for life

Step-by-step explanation:

are u ok?

Answer:

The actual meaning of life is to fulfill your purpose in life and accomplish your goals. What I mean by this is, everyone has a purpose, of why they are living. None of us will be here if we all didn't have a purpose.

Step-by-step explanation:

Answer:

-39 you welcome this was easy

Answer:B

Step-by-step explanation:

I’m not sure why

Answer:

A customer would have to own a cell phone for 5 months in order for the two companies to be equal.

Step-by-step explanation:

Given that:

Cost of cell phone at Verizon = $300

Monthly fee = $40

Let,

x be the number of months

V(x) = 40x + 300

Cost of cell phone at T-mobile = $200

Monthly fee = $60

T(x) = 60x + 200

For equal amount of money,

V(x) = T(x)

40x+300=60x+200

300-200=60x-40x

100=20x

20x=100

Dividing both sides by 20

[tex]\frac{20x}{20}=\frac{100}{20}\\x=5[/tex]

Hence,

A customer would have to own a cell phone for 5 months in order for the two companies to be equal.

Answer:

i think y= 1..........

Answer:

y = 1

Step-by-step explanation:

Step 1:

- 2y - 9 = - 11         Equation

Step 2:

- 2y = - 2       Add 9 on both sides

Step 3:

y = - 2 ÷ - 2        Divide 2 on both sides

Answer:

y = 1

Hope This Helps :)

Answers:

x = 3

y = 9

=========================================================

Explanation:

We're told that angle A is 20x. The diagram shows we have an equilateral triangle (since all three sides are the same length), so we know that all angles are the same measure and they are equal to 60 degrees.

Equate 20x and 60. So we solve 20x = 60 and that leads to x = 3 after you divide both sides by 20.

Since we have a triangle with all sides equal, we know that AB = AC = 9, therefore y = 9 because y is the length of AB.

Answer: I believe its 36

Step-by-step explanation:......

Given :

Total amount of pudding made, T = 5 pounds.

Size of each cup, s = 4 ounces.

To Find :

How many total individual pudding cups can Harper make.

Solution :

Let, n number of pudding cups can filled with 5 pounds pudding.

We know, 1 pound = 16 ounces.

So, 5 pounds = 16×5 = 80 ounces.

Now,

[tex]n = \dfrac{80}{s}\\\\n = \dfrac{80}{4}\\\\n = 20 \ cups[/tex]

Therefore, 20 cups can be filled with 5 pounds of pudding.

Answer: <def, <fed, <e, <2

Step-by-step explanation:

Not sure about angle 2 but I’m sure of the rest

Hope it helps

The answer is 278.4 hope this help

Answer:

Dilation x180 degrees around the origin, and then a translation across the y axis

Step-by-step explanation:

From what I can tell, you are looking for the series of transformations that happen to the triangle, so that's the answer I provided. Ignore if not.

Answer:

The what

please but a picture please

Answer:

4 payments

Step-by-step explanation:

4500/250+=18

250*4=1000

Answer:

2n-3

Step-by-step explanation:

n represents the number of hours Darcy practices.

The number of hours Hannah practices each week is 3 hours less than twice the number of hours Darcy practices.

Twice the number of hours Darcy practices is 2n.

Hannah practices for : 2n-3

Hence, the expression that represents the number of hours Hannah practices is "2n-3".

Answer:

7/6 merry christmas

Step-by-step explanation:

Answer:12

Step-by-step explanation:

5x4=20+2=22

30-22=12

I hope this helped, please mark brainliest

Answer: 12

Work: You need to use the PEMDAS Rule. The first thing you do is 5 x 4. After doing that, your new equation is 30 - 20 + 2. After doing that equation, you get 12.

I hope this helps, and Happy Holidays! :)

Answer:

We conclude that ''rectangle D'E'F'G' is larger than rectangle DEFG because the scale factor is greater than 1''.

Step-by-step explanation:

We know that when an object is dilated by a scale factor, the shape of the original size does not change, but the size of the original object tends to change depending upon the value of a scale factor.

For example,

Given that Rectangle DEFG is dilated with the origin as the center of the dilation using the rule (x,y) --> (3.5x, 3.5y) to create rectangle D'E'F'G'.

Given the scale factor = 3.5

As the scale factor > 1

Thus, the rectangle D'E'F'G' is larger than the rectangle DEFG.

Therefore, we conclude that ''rectangle D'E'F'G' is larger than rectangle DEFG because the scale factor is greater than 1''.

Answer:

171

Step-by-step explanation:

it is 171

Answer:

you hit the little crown next to the answer given

Step-by-step explanation:

if you find it pls give me brainliest

Answer:

x = 0

Step-by-step explanation:

Answer:

your answer would be c thank me later

Step-by-step explanation:

Answer:

The answer is 63.1

Step-by-step explanation: