Using basic geometry, solve sin 105°​

Answers

Answer 1

Answer:

See below

Step-by-step explanation:

sin ( 60 + 45) = sin60 cos 45  + cos45 sin60

                      = sqrt3 / 2 * sqrt2/2   + sqrt2/2 * 1/ 2

                        sqrt6/4    + sqrt 2/ 4

                          (sqrt6 + sqrt 2) / 4


Related Questions

NO LINKS!!!! Please help me with this graph. Part 7a​

Answers

Answer:

[tex]\large \boxed{ \sf y=-0.3\left|x-0\right|-7}[/tex]

Explanation:

Absolute value of a graph formula:

y = a |x -h| + k

Identify the vertex : (h, k) = (0, -7)

As the graph opens downward, take negative/fall coordinates.

Two points: (0, -7), (10, -10)

[tex]\sf Find \ slope \ (a) : \sf \ \dfrac{y_2 - y_1}{x_2- x_1} \ = \ \dfrac{-10-(-7)}{10-0} \ = -0.3[/tex]

Put them together: [tex]\bf y = -0.3|x - 0| -7 \ \ \ \approx \ \ y = -0.3|x| - 7[/tex]

Answer:

[tex]g(x)=-\dfrac{3}{10}|x|-7[/tex]

Step-by-step explanation:

Translations

For [tex]a > 0[/tex]

[tex]f(x)-a \implies f(x) \: \textsf{translated}\:a\:\textsf{units down}[/tex]

[tex]y=a\:f(x) \implies f(x) \: \textsf{stretched parallel to the y-axis by a factor of}\:a[/tex]

[tex]y=-f(x) \implies f(x) \: \textsf{reflected in the} \: x \textsf{-axis}[/tex]

-----------------------------------------------------------------------------------------

Parent function:  [tex]f(x)=|x|[/tex]

From inspection of the graph, the transformed function has been reflected in the x-axis.

[tex]\implies -f(x)=-|x|[/tex]

The vertex of the parent function is the origin (0, 0).  The vertex of the transformed function is at (0, -7).  Therefore, there has been a translation of 7 units down.

[tex]\implies -f(x)-7=-|x|-7[/tex]

From inspection of the graph, we can see that it has been stretched parallel to the y-axis:

[tex]\implies -a\:f(x)-7=-a|x|-7[/tex]

The line goes through point (10, -10)

Substituting this point into the above equation to find [tex]a[/tex]:

[tex]\implies -a|10|-7=-10[/tex]

[tex]\implies -10a=-3[/tex]

[tex]\implies a=\dfrac{3}{10}[/tex]

Therefore,

[tex]\implies g(x)=-\dfrac{3}{10}|x|-7[/tex]

If I have 679 points out of 901 what grade will I get?​

Answers

Around a 75% divide 679 by 901

Answer:

you'll get a 75%

Step-by-step explanation:

all you have to do is

divide 679/901

and you get 0.75%

What is the mode of this data set?

{7, 10, 12, 9, 12, 4, 13, 14}




7

10

11

12

Answers

Answer:

12

Step-by-step explanation:

the mode is the number you see the most

Answer:

12

Step-by-step explanation:

Mode is the number that is most repeated it can be more than one number but in your question it's only 1 number that's 12 and it has been repeated 2 times as shown

0.0% Complete
Your last doctor's visit cost $105. Health insurance through your employer paid $84, and
you paid the remaining $21. What percentage of the cost did you pay?
7
A. 20%
B. 21%
C. 25%
D. 80%
E. 84%
A Report Content Errors
Support
o
i
NA
Type here to search

Answers

A. 20% because you paid $21 out of $105 so 21/105 =.2 and to make it a percent you move the decimal over to places, making it 20%

y= 3x-2 find y when x=-5

Answers

[tex]y = 3x-2\\\\~~~=3(-5) -2\\\\~~~= -15-2\\\\~~~= -17[/tex]

Answer:

y = -17

Step-by-step explanation:

Given values :

⇒ x = -5

Let's substitute in the expression to find y :

⇒ y = 3(-5) - 2

⇒ y = -15 - 2

y = -17

what is the slope-intercept equation of the line below?

Answers

Answer:

Step-by-step explanation:

(-1, 1)  (1, -3)

(-3 - 1)/(1 + 1)= -4/2 = -2

y - 1 = -2(x + 1)

y - 1 = -2x - 2

y = -2x - 1

answer is A

What is the total number of different 13-letter arrangements that can be formed using the letters in the word ENLIGHTENMENT?

Answers

Answer:

86486400

Step-by-step explanation:

[I REALLY DON'T KNOW I NEED HELP PLEASE] Fill in the blank with the word dependent or independent. 1. The equation y = 6-x defines y as a function of x. The variable x is the variable, because you can choose any value for it. The variable, because it depends on variable y is called the x. Once you have chosen a value for x, the value of y is determined.​

Answers

It is dependent. Without the function of the variable (X), we wouldn’t understand the value of Y.

Calculus, A) find the slope of the line
B) interpret the slope

Answers

Answer:

- [tex]\frac{3}{5}[/tex]

Step-by-step explanation:

Slope of the line indicate how fast ( or slow ) the line is going up or down

205000 seconds to a year

Answers

Answer:

theres 31536000 seconds in a year

Answer:

0.0065 calendar year

Step-by-step explanation:

How many seconds makes a year?

it is 31,536,000 seconds

for an approximate result, divide the time value by 3.154⁷

therefore 205000/3.154⁷

=0.00649

=0.0065

(Multiple choice question) As a town geta mater, the population of its high school decreases by 123. each year. The student body has 125 students now. In how many years will have about 75 students? Use the
equation 75 - 125/088)" to solve the problem Round to the nearest year

2 years

4 years

1 year

3 years

Answers

Answer:

4 years !

Step-by-step explanation:

Can someone pls help me ! 20 points

Answers

Yes,1/2 of an answer is zero answer.

Help find the probability

Answers

Answer:

    18. 0.25

    19. 0.33

Step-by-step explanation:

Problem 18

Number of oranges = 2Number of fruits = 2 + 6 = 8P (orange) = 2/8 = 1/4P (orange) = 0.25

Problem 19

Number of 1 or 6 faces = 2Total faces = 6P (1 or 6) = 2/6 = 1/3P (1 or 6) = 0.33 (2 DP)

The diagram shows the locations of Cody and Reese after running different directions from a tree. How far did Cody run?

Answers

Answer:

very very far indead he ran and ran without stopping

A blight is spreading in a banana plantation. Currently, 458 banana plants are infected. If the
disease is spreading at a rate of 8% each year, how many plants will be infected in 8 years?
If necessary, round your answer to the nearest whole number,
banana plants

Answers

The number of infected banana plants with a rate of 8% will be in 8 years is 848.

What is exponential growth or decay function?

Consider the function:

y = a(1 + r)ˣ

where x is the number of times this growth/decay occurs, a = initial amount, and r = fraction by which this growth/decay occurs.

A blight is spreading on a banana plantation. Currently, 458 banana plants are infected.

If the disease is spreading at a rate of 8% each year.

Then the number of the plants that will be infected in 8 years.

Then the exponential function is given as

y = 458(1.08)ˣ

At x = 8, then we have

y = 458(1.08)⁸

y = 458 x 1.851

y = 847.73

y ≅ 848

Learn more about exponential growth and decay here:

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Find the surface area of the prism. A cube with side edges of 7 yards.

Answers

Answer:

294 yd²

Step-by-step explanation:

a cube has 6 congruent square faces.

the area of 1 face = 7 × 7 = 49 yd²

then surface area = 6 × 49 = 294 yd²

The area of the rubber coating for a flat roof was 96 ft². The rectangular frame the carpenter built for the
flat roof has dimensions such that the length is 4 ft longer than the width. What are the dimensions?

Answers

Answer:

Length = 12 ft.

Width = 8 ft.

Step-by-step explanation:

Given :

Area = 96 ft²Length = Width + 4 ft.

Let :

Length = (x + 4) ft.Width = x ft.

Solving :

The formula for calculating area is : Area = Length x Width96 = (x + 4)(x)x² + 4x - 96 = 0x² + 12x - 8x - 96 = 0x(x + 12) - 8(x + 12) = 0(x - 8)(x + 12) = 0x - 8 = 0 ⇒ x = 8

The dimensions are :

Length = 12 ft.

Width = 8 ft.

7th Grade: Daily Tre Seventh Grade Wee.
Emma Collaborativ
A
Emmas portfolio G Create Your "My Wob Boom Cards
Interpret Charts to
Problems
10
Lois made a dish with 63 cups of pasta. One serving of the pasta is 0.3 cups. How many servings of pasta were in the dish Lois
made?
OA. 6
OB. 6
OC. 213

Answers

Answer:

It should be 210, but that option isn't on here

Step-by-step explanation:

63 cups / 0.3 cups per serving = 210 servings

Answer:

C. 213?

Step-by-step explanation:

Not sure as you might've just copied and pasted in correctly as I do see you copied the bit where it says "Emma portfolio" and both A and B are both 6, as the answer. But 63/0.3 would give you 210 servings. So I'm not sure where the 3 extra servings are coming from.

Find the volume.
A rectangular prism with length 7 yards, width 6 yards, and height 3 yards.
a.
126 cu. yd
b.
252 cu. yd
c.
147 cu. yd
d.
54 cu. yd

Answers

The volume of the rectangular prism with length 7 yards, width 6 yards, and height 3 yards is 126 cubic yards

What is Three dimensional shape?

a three dimensional shape can be defined as a solid figure or an object or shape that has three dimensions—length, width, and height.

Given that rectangular prism with length 7 yards, width 6 yards, and height 3 yards.

We have to find the volume of the prism

Volume = length×width ×height

Plug in the values of length , width and height

Volume = 7×6×3

=126 cubic yards

Hence, the volume of the rectangular prism with length 7 yards, width 6 yards, and height 3 yards is 126 cubic yards

To learn more on Three dimensional figure click:

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Answer:

A. 126

Step-by-step explanation:

Correct on edge!

Solve for the value of n.
(9n+2)
34°

Answers

Answer:

I think its 306n+68

The sun has a radius of 4.32 X 10 5 miles question ( need a answer )

Answers

Answer:

  (D)  4/3π(8.06×10^16)

Step-by-step explanation:

The volume of a sphere is given by the formula ...

  V = 4/3πr³

__

Using the given value for the radius, the volume of the Sun is ...

  V = 4/3π(4.23×10^5 mi)³ ≈ 4/3π(8.06×10^16) mi³

Yo fam for me

45 = 3(x + 1)

Answers

Here is the answer !

Answer:

x = 14

Step-by-step explanation:

     Solving equation

3(x + 1) = 45

3*x + 3*1 = 45    {Distributive property used: a*(b+c) =(a*b) +(a*c)}

3x + 3    = 45

   Subtract 3 from both sides

         3x = 45 - 3

         3x = 42    

Divide both sides by 3

          x  = 42/3

               [tex]\sf \boxed{\bf x = 14}[/tex]

Marking brainliest need help!!!

Answers

Answer:

B.

Step-by-step explanation:

it represents the hours the truck was driven before running out of fuel because the further the line goes the less fuel it has until it reaches the x-axis meaning there's no more fuel

Using Desmos, enter the data from the table and create a linear regression equation. Let x = time in years since

1900 and let y = minimum hourly wage. Remember, the line that is graphed is a “line of best fit” or a “trend line.”

The equation for that line is called a linear regression equation. Use the information given to you by desmos to

write the linear regression equation. Do not round.


Use the equation to estimate the minimum hourly wage of a U.S. worker in 2025. Use Desmos and round to the

nearest cent.

Minimum hourly wage =

Answers

Answer:

$8.61 (nearest cent)

Step-by-step explanation:

The graphed data with the line of best fit (attached).

From the graphing calculator, the given line of regression is:

y = 0.125873x - 7.11916

To estimate the minimum hourly wage in 2025:

⇒ x = 2025 - 1900 = 125

Substitute x = 125 into the equation:

⇒ y = 0.125873(125) - 7.11916

⇒ y = 8.614965

Therefore, minimum hourly wage = $8.61 (nearest cent)

HELP ASAP PLEASE !!

What is sum n = 1 to 4 5 ^ n equal to?

Answers

Answer: 50

Step-by-step explanation: hello the answer is 50

what is four minus three

Answers

Answer:

1

Step-by-step explanation:

4-3 = 1

Answer:

1

Step-by-step explanation:

4-3=1

If you had 4 lollipops and you gave your friend 3 lollipops, how many would you have? 4-3=1 You could try it out at home.

i need help with 8th grade math please hurry and correct answer please 40 points

Answers

Answer:

2664.3

Step-by-step explanation:

The volume of a sphere is

V = 4/3 πr³

Multiply the radius (which is the diameter divided by 2), 8.6 by itself 3 times, and them multiply it by pi and 4/3 to achieve a volume of 2664.31 or aproximatley 2664.3.

Answer:

v=59 m3 i think if it helps please mark brainliest

Help me with the 2 problems

Answers

Yes because 484 + 484 equals 964
And equation you should always do the opposite of the sign you get to find your answer so he got minus he should use Addition

9.

no

he has to put -484 to the left of the equal sign too

z + 484 -484 = 964 - 484

z = 480

10.

a.

310,000 + x = 465,000

x = 465,000 - 310,000

x = 155,000

b.

310,000x = 930,000

x = 930,000 ÷ 310,000

x = 3

How does the graph of g(x) = (x − 2)^3 + 6 compare to the parent function of f(x) = x^3?

g(x) is shifted 2 units to the right and 6 units down.
g(x) is shifted 2 units to the right and 6 units up.
g(x) is shifted 2 units to the left and 6 units down.
g(x) is shifted 6 units to the left and 2 units down.

Answers

The transformation from the parent function f(x) to g(x) is (b) g(x) is shifted 2 units to the right and 6 units up

How to compare the graphs?

The equations are given as:

f(x) = x^3

g(x) = (x - 2)^3 + 6

The transformation from f(x) to g(x) can be represented as:

x -> x -2

f(x) -> f(x) + 6

This means that the function f(x) is shifted right by 2 units and shifted up by 6 units.

Hence, the transformation from the parent function f(x) to g(x) is (b) g(x) is shifted 2 units to the right and 6 units up

Read more about function transformations at:

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In Calc, a mathematical equation is called a
A. Calculation
B. Symbol
C. Formula
D. Cell name

Answers

C. Formula

Explanation:

In Calc, a mathematical equation is called a Formula.

It would be formula
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