Mathematics High School

Please help me asap with my grade 11 trigonometry math! I'll give brainliest, please help, thank you. URGENT

Answers

Answer 1

Answer:

37.8579

This value is approximate and rounded to four decimal places

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

Explanation:

The tangent function is being applied to some unknown angle x. To isolate x, we undo whatever tangent is doing. So we apply the inverse function. Specifically the inverse tangent function. This is also known as "arctangent" and your calculator most likely shows it as a button with a "-1" exponent above the "tan"

So apply the arctangent to both sides to get

tan(x) = 0.7773

arctan(tan(x)) = arctan(0.7773)

x = 37.8579

Answer 2

heres a diagram to help

Related Questions

A circle's diameter is 4 feet.
What is the circle's circumference (use 3.14 for pi and round to the Nearest tenth)?

PLS HELP

Answers

Answer:

Step-by-step explanation:

The formula for cirmference is

C= π2 * r

we're using 3.14 as pi and r = radius.

the radius is always half of the diameter.

So in this case since the diamter is 4, the radius is 2. let's substitute these numbers.

C= 3.14 *2*2 and there your answer is 12.56 which rounded to the nearest tenth is 13.

Hope this helps :)

Earl made a 1/2 pan of brownies using 2/3 cup of sugar How much sugar will it take for a whole pan of brownie

Answers

Answer:

It will take 4/3 cup of sugar or 1 and 1/3 cup of sugar

Step-by-step explanation:

1/2 + 1/2= 1

2/3 + 2/3=4/3 or 1 and 1/3

hope this helps:)

Evaluate the expression.

52−4⋅6+11

Enter your answer in the box.

Answers

Answer: 39

Step-by-step explanation: PEMDAS

Variable g is 8 more than variable w. variable g is also 4 less than w. which pair of equations best models the relationship between g and w? g = w − 8 g = w 4 w = 8g w = g − 4 g = w 8 g = w − 4 w = 8g w = g 4

Answers

A pair of equations best models the relationship between g and w are g = w + 8, and g = w - 4 option second is correct.

What is a linear equation?

It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.

If in the linear equation, one variable is present, then the equation is known as linear equation in one variable.

We have :

Variable g is 8 more than variable w, mathematically we can write it as:

g = w + 8 ....(1)

Also, variable g is also 4 less than variable w, mathematically we can write it as:

g = w - 4 ....(2)

The equation (1) and equation (2) are representing the system of linear equation in two variables.

So, we have framed two linear equation, that is:

g = w + 8 and

g = w - 4

Thus, a pair of equations best models the relationship between g and w are g = w + 8, and g = w - 4 option second is correct.

Learn more about the linear equation here:

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Answer:

Step-by-step explanation:

I am thinking of two numbers whose difference is 32. Twice the smaller number is 12 more than the larger number. What are my numbers?

Answers

Answer:
Smaller number = 44
Larger number = 76
Step-by-step explanation:
let x and y be the two numbers we are looking for and x ≤ y
we must interpret the statement “their difference is 32” like this:
y - x = 32
we must interpret the statement “Twice the smaller number is 12 more than the larger number” like this:
2x = y + 12

As a result we get this system of equations :
y - x = 32
2x = y + 12
Let’s solve it (We proceed by elimination) :
y - x = 32
2x = y + 12
⇔
-x + y = 32 We label this Equation (1)
2x - y = 12 We label this Equation (2)

(1) + (2) → -x + y + 2x - y = 32 + 12
then x = 44
Now we replace x in equation (1) we get -44 + y = 32
then y = 32 + 44 = 76

As the sample size gets larger, what happens to the size of the correlation that is needed for significance?.

Answers

If the sample size gets larger, the size of the correlation that is needed for significance will get smaller.

What will happen to the significance required when sample size increases?

As the sample size gets larger, it's characteristics will become more and more like the population it is derived from which makes predictions more accurate.

As a result, the correlation size that is needed to decide significance will reduce. This tallies with the characteristic of the correletion coefficient to be lower when the sample size is greater.

Find out more on the correlation coefficient at https://brainly.com/question/4219149.

Which of the following is least likely to be a warning sign that one's debt is at a critical point? a. all credit cards are at their limits b. having several credit cards c. making only minmum payments on credit cards d. using cash advances to pay bills please select the best answer from the choices provided. a b c d

Answers

The option which is least likely to be a warning sign that one's debt is at a critical point is having several credit cards.

What is a warning sign for credit cards?

The most likely warning sign for credit cards is not paying or clearing the debt of the credit card in full each month.

The options given in the problem are,

a. All credit cards are at their limits. b. Having several credit cards. c. Making only minimum payments on credit cards. d. Using cash advances to pay bills.

In these options, least likely to be a warning sign is having several credit cards as having multiple cards and well management of them required the carefulness and awareness.

Thus, the option which is least likely to be a warning sign that one's debt is at a critical point is having several credit cards.

Learn more about the credit card here;

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Find x #4 please reallt emergency

Answers

Answer:

Step-by-step explanation:

A ray of an angle that rotates about the center is called?

Answers

A ray of an angle that rotates about the center is called terminal arm of that angle.

How does an angle form?

An angle requires two straight line/ line segments/rays, such that they're connected on one of their endpoints.

The point of their joint is called vertex of that angle.

Those two line segments forming it are called arms of that angle.

One arm is fixed, and one arm rotates around that vertex to make angles of different different measurements.

The fixed arm is called initial arm/initial side.

The moving arm is called terminal arm/terminal side.

The angle is the degree of rotation that it will take for the moving side to go from initial side to the position it is currently on.

Thus, a ray of an angle that rotates about the center is called terminal arm of that angle.

Learn more about angles here:

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Please help me i can’t figure it out

Answers

Answer:

Step-by-step explanation:

Always do parentheses first.

So 39-3=36

Then 36+6+3power of 2

36+6=42

42+3 power of 2

3 times 3 = 9

42+9=51

Answer:

Step-by-step explanation:

I got it right on the test

The radius of a circle is 7 inches. What is the length of a 135º arc?

Answers

Love you bro it c or b

if x+3/3=y+2/2 then, x/3 = ?

Answers

Answer:

y-2

Step-by-step explanation:

x+3/3=y+2/2

cross multiply

2(x+3)=3(y+2)

2x+6=3y+2

2x=3y+2-6

2x=3y-4 (divide both sides by 2)

2x/2=3y-4/2

x=3y-2

therefore substitute x=3y-2 into x/3

3y-2/3

=y-2

How many 30 degrees angles fit in a right angle?

Answers

Answer:

Step-by-step explanation:

A right angle is 90 degrees. 90/30=3

6 is the answer. hope this helpsssss

y = 3x + 1, -x + 2y = -3

Answers

Answer:

X= -1 y= -2

Step-by-step explanation:

y= 3x+1

y-1 =3x

X= y-1/3...(1)

-x+2y= -3

-(x-2y)= -3

x-2y=3

(y-1/3)-2y =3 (from eq (1))

y-1-6y =3×3

-5y= 10

y= -2

X= y-1/3

= -2-1/3

x = -1

At a skills competition, a target is being lifted into the air by a cable at a constant speed. an archer standing on the ground launches an arrow toward the target. the system of equations below models the height, in feet, of the target and the arrow t seconds after it was fired. which statement most likely describes the situation modeled by this system?

Answers

The answer will be option 4.The arrow is fired with an initial upward velocity of 32 ft / s.

What is Velocity?

Velocity is defined as when an object travels to a particular distance with respect to time in a particular direction then it is termed as velocity. Velocity is a vector quantity.

By definition, the equation of movement in its generic form is given by:

[tex]h(t)=-\dfrac{1}{2}gt^2+v_ot+h_o[/tex]

Where,

g: acceleration due to gravity

[tex]v_o[/tex]: initial speed

[tex]h_o[/tex]: initial height

The equation for the arrow is given by:

[tex]h=4+32t-16t^2[/tex]

Then, according to the definition, the initial velocity of the arrow is:

[tex]v_o=32 \ \dfrac{m}{s}[/tex]

Hence the answer will be option 4.The arrow is fired with an initial upward velocity of 32 ft / s.

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Answer:

Step-by-step explanation:

d on edge i took the test

If humans lost the ability to see all color except one, which color would you want to survive?

Answers

Answer:

The color blue. There’s many shades of blue and plus blue is my favorite color. I’ll be able to tell if I’m drinking water or not.

Blue . Is the color I like most and even if I can’t see any color seeing blue can make me comfortable

What is the approximate area of the triangle?

A. 12.5 square units
B. 18 square units
C. 21.5 square units
D. 31 square units

Answers

A 12. 5 in.² i’m pretty sure lol

The solution is Option C.

The area of the triangle is 21.5 square units

What is a Triangle?

A triangle is a plane figure or polygon with three sides and three angles.

A Triangle has three vertices and the sum of the interior angles add up to 180°

Let the Triangle be ΔABC , such that

∠A + ∠B + ∠C = 180°

The area of the triangle = ( 1/2 ) x Length x Base

For a right angle triangle

From the Pythagoras Theorem , The hypotenuse² = base² + height²

Given data ,

Let the area of the triangle be A

Let the height of the triangle be H

The value of H = 7 units

Let the base of the triangle be B

The value of B = 6 units

Now , the area of the triangle is given by the equation

The area of the triangle = ( 1/2 ) x Length x Base

Substituting the values in the equation , we get

Area of Triangle = ( 1/2 ) x 7 x 6

Area of Triangle = 1/2 x 42

Area of Triangle = 42/2

Area of Triangle A = 21.5 square units

Therefore , the value of A is 21.5 units²

Hence , The area of the triangle is 21.5 square units

To learn more about triangles click :

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For each order. Determine weather is a solution to x = -5

Solutions:
(-5,1)
(3,-5)
(9,2)
(-5,4)

Answers

First number is x and second number is y
(x,y)

So first and last are correct

Jasmyn is 4 years older than Sofie. three times Jasmyn age added to six times Sophie's age is 36. How old are Jasmyn and Sofie?

Answers

Answer:

Sophie is 2 and 8 months old

Jasmyn is 6 and 8 months old

Step-by-step explanation:

j = 4 + s

3j + 6s = 36

Solve for Sophie's age by substitution:

3(4 + s) + 6s = 36

12 + 3s + 6s = 36

12 + 9s = 36

9s = 24

s = 24/9 = 8/3 or 2 and 2/3

Sophie is 2 and 8 months old

Solve for Jasmyn's age:

j = 4 + s

j = 4 + 8/3

j = 12/3 + 8/3

j = 20/3 or 6 and 2/3

Jasmyn is 6 and 8 months old

I hope this helps!

What is the value of x?

Enter your answer in the box.

x =

Answers

17.3

52÷3=17.3

if i am mistaken

Those are vertical angles which are equal to each other:

2x + 2 = 3x - 52

Add 52 to both sides:

2x + 54 = 3x

Subtract 2x from both sides:

54 = x

Rewrite as x = 54

6. If the information given represents an arithmetic
sequence, find the 27th term.

a_1 = 49 and a_8 = 14

Answers

Since consecutive terms differ by a constant k in this sequence, we have

[tex]a_8 = a_7 + k[/tex]

[tex]a_8 = (a_6+k)+k = a_6+2k[/tex]

[tex]a_8 = (a_5+k)+2k=a_5+3k[/tex]

and so on down to

[tex]a_8 = a_1 + 7k[/tex]

Solve for k :

14 = 49 + 7k ⇒ -35 = 7k ⇒ k = -5

We then do the same as above but in the reverse direction:

[tex]a_9 = a_8+k[/tex]

[tex]a_{10} = a_9+k = a_8+2k[/tex]

[tex]a_{11} = a_{10}+k = a_8+3k[/tex]

and so on, up to

[tex]a_{27} = a_8 + 19k = \boxed{-81}[/tex]

Which expressions result in an irrational number

Answers

Answer:

III ONLY

If right please make brainleist for others to learn from this answer thanks!

Step-by-step explanation:

Someone help me with this question

Answers

Answer:

Step-by-step explanation:

Defining CB

CB is not the hypotenuse of triangle ABC. The hypotenuse is the longest side of any right triangle. CB is the other side other than the hypotenuse that makes up <C. It is the adjacent side because AC and CB make up angle C.

Defining Cos(C)

All of this makes up what you need to know to define the Cos(C)

Cos (C) = adjacent side / hypotenuse.

adjacent side = 6

Hypotenuse = 10

Cos(C) = 6/10

Answer: B

(10^x/6) (10^x/8)=10^10

Answers

Answer:

(10^x/6)(10^x/8)=10^10

Exact Form: 6/253

In Decimal Form (rounded off): 0.02

Hope it helps! :)

A store offers a 30% discount on a coat that originally sold for $120. The coat still does not sell, so the store offers another 30% o the sale price. What is the difference between this price and the price of the coat had it been marked down 60% all at once?A. $5. 80 B. $7. 40C. C. $10. 8 D. No difference; the resulting prices are the same

Answers

Answer:

C. $10.80

Step-by-step explanation:

Lets solve for first 30% discount

120/ 10 =12 (divided by 10 to get 10% of the whole)

12= 10% of 120

36= 30 % of 120 (multiplied by 3 to get 30%)

120-36= 84

Lets solve for second 30% discount

84/10 =8.4 (divided by 10 to get 10% of the whole)

8.4= 10% of 84

25.2 = 30% of 84 (multiplied by 3 to get 30%)

84-25.2=58.80 (subtracted the discount from the total to get the sale price)

Let's solve for what it would cost had they done 60% to begin with

120/10 = 12 (divided by 10 to get 10% of the whole)

12= 10% of 120

72= 60% of 120 (multiplied by 6 to get 60%)

120-72 = 48 (subtracted the discount from the total to get the sale price)

Let's solve for the difference between the two

58.80-48= 10.80

Hideki was given a rare coin 9 years ago. The value of the coin has increased $6 every year since it was given to him. It is now worth $76. Which equayion can Hideki use to find the value, v, of the coin after a years of owning it?

A. V=6a+22

B. V=6a+76

C. V=6a+130

D. V=9a+22

E. V=9a+130

Answers

The question is an illustration of a linear function, and the value, v, of the coin after a year of owning it is (b) V = 6a + 76

How to determine the equation?

The given parameters are:

Initial value = 76Rate = 6

A linear function is represented as:

y = mx + c

Where m represents the rate, and c represents the initial value

This means that:

m = 6 and c = 76

So, we have:

y = 6x + 76

In terms of a and V, we have:

V = 6a + 76

Hence, the value, v, of the coin after a year of owning it is (b) V = 6a + 76

Answers

Answer:

2/3 would be 10/15 and 3/5 would be 9/15

Step-by-step explanation:

To get the common denominator of 15 you multiply the first fraction by 5 in the numerator and denominator and on the other fraction you multiply by 3 in the numerator and denominator.

There are 12 boys and 15 girls in Mr. Fraioli’s math class. He will randomly call on one person to answer the problem of the day. What is the probability that he will choose a girl

Answers

n = 12 + 15 = 27

Probability of choosing girl,

p = 15/27

Probability of choosing boy,

q = 1 - 15/27 = 12/27

[tex]P(X = 1) = \binom{27}{1} { (\frac{15}{27}) }^{1} ( { \frac{12}{27} )}^{26} \\ = 1.045552364 \times {10}^{ - 8} [/tex]

The probability that he will choose a girl will be equal to 15/27.

What is the probability?

Probability is defined as the ratio of the number of favourable outcomes to the total number of outcomes in other words the probability is the number that shows the happening of the event.

Probability = Number of favourable outcomes / Number of sample

Given that there are 12 boys and 15 girls in Mr Fraioli’s math class. He will randomly call on one person to answer the problem of the day.

The probability that he will choose a girl,

n = 12 + 15 = 27

Probability of choosing a girl,

p = 15/27

Probability of choosing boy,

q = 1 - 15/27 = 12/27

To know more about probability follow

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Estimate the perimeter of the figure to the nearest whole number.

perimeter: about
units

Answers

Answer:

i d k

Step-by-step explanation:

we cant see your figure so

Rani and Kajal are playing a card game using a standard 52 card deck.
Kajal will pick a card at random. If the card is a black card, she will win $5. If the card is a face card (jack, queen, or king), but not a black card, she will win $3. If she picks anything else, she will lose $10.
The image below shows a standard deck of playing cards.
What is Kajal's expected value of playing this game?

Answers

Answer:

not answered this question

Kajal's expected value of playing this game is -$1

Kajal's expected value of playing this game

The given parameters are:

Picking a black ⇒ $5 (win)Picking a face card ⇒ $3 (win)Picking anything else ⇒ $10 (lose)

There are 26 black cards in a standard 52 card decks.

So, we have:

P(Black) = 26/52

There are 6 face cards that are not black in a standard 52 card decks.

So, we have:

P(Face card and not black) = 6/52

There are 20 other cards not in the above categories.

So, we have:

P(Others) = 20/52

The expected value is then calculated as:

[tex]E(x) = \sum x * P(x)[/tex]

This gives

E(x) = 5 * 26/52 + 3 * 6/52 - 10 * 20/52

Evaluate the products

E(x) = 130/52 + 18/52 - 200/52

Evaluate the sum and difference

E(x) = (130 + 18 - 200)/52

This gives

E(x) = -52/52

Evaluate

E(x) = -1

Hence, Kajal's expected value of playing this game is -$1

Please help me asap with my grade 11 trigonometry math! I'll give brainliest, please help, thank you. *URGENT*

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Please help me asap with my grade 11 trigonometry math! I'll give brainliest, please help, thank you. URGENT