Please help complete the statement

Please Help Complete The Statement

Answers

Answer 1

Answer:

sin2θ = - [tex]\frac{24}{25}[/tex]

Step-by-step explanation:

Given

cosθ = [tex]\frac{3}{5}[/tex] = [tex]\frac{adjacent}{hypotenuse}[/tex] and in fourth quadrant

Then this is a 3- 4- 5 triangle with opposite side = 4

sinθ < 0 in fourth quadrant, then

sinθ = - [tex]\frac{opposite}{hypotenuse}[/tex] = - [tex]\frac{4}{5}[/tex]

Using the double angle identity for sine

sin2θ = 2sinθcosθ

          = 2 × - [tex]\frac{4}{5}[/tex] × [tex]\frac{3}{5}[/tex] = - [tex]\frac{24}{25}[/tex]


Related Questions

2400 people attended a basketball game. 696 of the people attending supported the home team, while 1704 supported the visiting team. What percentage of people attending supported the home team?

Answers

Answer:

0.29 or 29 percent I put it on god

Step-by-step explanation:

The percentage of people attending supported the home team is 29%.

What is percentage?

A value or ratio that may be stated as a fraction of 100 is referred to as a percentage in mathematics. If we need to compute a percentage of a number, we should divide it by its whole and then multiply it by 100. The proportion therefore refers to a component per hundred. Per 100 is what the term percent signifies. The letter "%" stands for it.

Given, 2400 people attended a basketball game. 696 of the people attending supported the home team, while 1704 supported the visiting team.

From the general formula of percentage:

percentage = value/ total value * 100

Since, Out  of 2400 only 696 supported the home team

thus,

Percentage = 696/2400*100

Percentage = 29%

Therefore, 29% percentage of people attending supported the home team.

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The cost of every college is expected to increase 3.5%

next year.

The cost to attend Westish College is currently $18000.

What is the expected cost to attend Westish College

next year?

Answers

Answer:

$18,630

Step-by-step explanation:

The cost of every college is expected to increase 3.5% next year.

The cost to attend Westish College is currently $18000.

What is the expected cost to attend Westish College next year?

The increase in the cost for next year is calculated as:

3.5 % × Current cost

= 3.5% × $18,000

= $630.

The expected cost to attend Westish college next year=

$18,000 + $630

= $18,630

Can anybody help me with this please

Answers

Answer:

c

Step-by-step explanation:

180-24-30=126

3x-9=126

3x=135

x=45

Help me with those two questions

Answers

Given:

A figure in which a transversal line intersect two parallel lines.

[tex]m\angle 2=4x+7, m\angle 7=5x-13, m\angle 5=68[/tex] and [tex]m\angle 3=3y-2[/tex].

To find:

The value of x and y.

Solution:

We know that, if a transversal line intersect two parallel lines, then

(1) Alternate exterior angles are equal.

(2) Same sided interior angles are supplementary. So their sum is 180 degrees.

In the given figure j and k are parallel lines and l is a transversal line.

From the given figure, it is clear that,

[tex]m\angle 2=m\angle 7[/tex]                (Alternate exterior angles are equal)    

[tex]4x+7=5x-13[/tex]

[tex]7+13=5x-4x[/tex]

[tex]20=x[/tex]

Therefore, the value of x is 20.

Now,

[tex]\angle 3+\angle 5=180[/tex]     (Same sided interior angles are supplementary)

[tex]3y-2+68=180[/tex]

[tex]3y+66=180[/tex]

[tex]3y=180-66[/tex]

[tex]y=\dfrac{180-66}{3}[/tex]

[tex]y=\dfrac{114}{3}[/tex]

[tex]y=38[/tex]

Therefore, the value of y is 38.

3(s + 4) = 30 what the value of s ​

Answers

Answer:

s=6

Step-by-step explanation:

Hope this helps :)

The value of s for the given expression 3(s + 4 = 30 will be 6.

What is an expression?

A mixture of variables, numbers, addition, subtraction, multiplication, and division are called expressions.

A statement expressing the equality of two mathematical expressions is known as an equation.

As per the given expression,

3(s + 4) = 30

Divide both sides by 3

s + 4 = 10

Subtract both sides by 4

s + 4 - 4 = 10 - 4

s = 6

Hence "The value of s for the given expression 3(s + 4 = 30 will be 6".

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A velocity field (in m/s units) is given by u = 2x 2 y, v = − xy2 , w = 0. (a) Obtain the streamline equation and plot several streamlines in the domain 0  x  5, 0  y  5. (b) Find the velocity vector at point (1, 2),

Answers

Answer:

I don't know but, try your hardest you can do it! I know you can!

Marty's class collected $34.00 in a school-wide penny collection contest. If Tommy's class added $3.00 to the amount they
collected, x, and then multiplied the sum by 2, they would have the same amount of money as Marty's class.
2(x + $3.00)= $34.00
How much money did Tommy's class collect?
Ο Α.
$20.00
OB.
$17.00
O C.
$3.00
OD.
$14.00

Answers

Answer:

the answer that you are looking for is D

Step-by-step explanation:

The Tommy's class collect the amount of 14 dollar.

What is the solution for an equation?

The solution of an equation refers usually to the values of the variables involved in that equation which if substituted in place of that variable would give a true mathematical statement.

We need to find the solutions of the equation 2(x + $3.00)= $34.00 ;

Now solving for x;

2(x + $3.00)= $34.00

Open the bracket;

2x + 6 = 34

Combine the like terms;

2x = 34 - 6

2x = 28

x = 14

Therefore, the equation 2(x + $3.00)= $34.00 has only one solution which is 14.

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What digit has the thousandths value in two hundred forty-six ten thousandths? *
1 point
A. 2
B. 6
C. 4
D. 10​

Answers

The answer is D, 10 is in the thousandths place
The answer is 6, answer B

Iona and Jamey have lunch at a bistro. The bill totals $29.75, and they leave their server a 24% tip. How much total money do they pay?

Answers

Answer:

$36.89

Step-by-step explanation:

Given data

Totals $29.75

tip= 24% tip

=24/100*29.75

=0.24*29.75

=7.14

In all the bill is 7.14+29.75

=$36.89

Need help and I need it fast plz

Answers

Answer:

The answer is b can i have brainliest

Step-by-step explanation:

Answer:

it's b :)

Step-by-step explanation:

Solve for x. Round to two decimal places if necessary.

Answers

Answer:

Length of JK is 68.27 units.

Step-by-step explanation:

By applying geometric mean theorem (leg theorem) in the triangle attached,

[tex]\frac{KL}{KM}= \frac{JK}{KL}[/tex]

(KL)² = (KM)(JK)

(32)² = (15)(x)

x = [tex]\frac{1024}{15}[/tex]

x = 68.2666

x ≈ 68.27

Therefore, length of JK is 68.27 units.

math work pls help :)​

Answers

Answer:

C ASA

Angle side Angle.....

A paint store sells an orange paint that is made by combining 7 parts red with 4 parts
yellow. A customer tried to recreate the order at home, but made a mistake. Her
container has 4 parts red paint and 8 parts yellow paint. How much red paint does she
need to add to get the correct shade of orange?

Answers

Answer:

10 parts red paint

Step-by-step explanation:

she doubled the amount of yellow paint in the can at home, so you will need to add twice the amount of red paint. 7×2=14, 14-4= 10.

pls help me I will mark the first one to say don't need explanation

Answers

Answer:

m = -1/3

Step-by-step explanation:

By using rise over run, the slope is going 1 down and 3 across.

Answer:

-63

Step-by-step explanation:

f(x) = -1152 – 90x® + 216x2 + 288x + 9x4

Answers

Answer:

F(x) = 43/16 (43 over 16)

5
.
The coordinates of A are (4,5) and the coordinates
of B are (10, y). If the midpoint of AB is (7, -2),
find the value of y.

Answers

Answer:

5

Step-by-step explanation:

To keep her pet groundhog Marley happy, Gwen built a rectangular pen for Marley with an area of 242 square feet. She only had 66 feet of fencing to use, and wanted the length to be twice as long as the width. What are the dimensions of the pen?

Answers

seitz seirz seitz seit

If g(x) = x^2-5, find the value(s) of x so that:
a. g(x)= 20
b. g(x) = 6

Answers

9514 1404 393

Answer:

  a)  x = ±5

  b)  x = ±√11 ≈ ±3.317

Step-by-step explanation:

Since we want x for some function value, it is convenient to determine the inverse function.

  x = g(y)

  x = y^2 -5

  x +5 = y^2

  y = ±√(x +5)

__

a) x = ±√(20 +5) = ±5

b) x = ±√(6 +5) = ±√11 ≈ ±3.317

Find the geometric mean for the pair of numbers,
5 and 9.8

Answers

Answer:

7

Step-by-step explanation:

To find the geometric mean of two numbers, just find the product of those numbers and take the square root!

5 x 9.8 = 49

√49 = 7

I hope this helped!

Sincerely,

Rekifromsk8theinfinity

:D

Question 10 of 10
Which of the following is(are) the solution(s) to . |x+8|= 1?

Answers

Answer:

The solutions are x = -7 and x = -9

Step-by-step explanation:

All absolute values are non-negative numbers, so x + 8 will always be greater than 0. This means that |x + 8| = 1 can be represented as x + 8 = 1 AND x + 8 = -1.

x + 8 = 1 ⇒ x = -7

x + 8 = -1 ⇒ x = -9

So the solutions are x equals -7 or -9.

How would I get the answer to this problem.

Answers

Answer:

[tex]\displaystyle m=\frac{-1}{3}[/tex]

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Algebra I

Coordinates (x, y)Slope Formula: [tex]\displaystyle m=\frac{y_2-y_1}{x_2-x_1}[/tex]

Step-by-step explanation:

Step 1: Define

Point (3, 7)

Point (9, 5)

Step 2: Find slope m

Simply plug in the 2 coordinates into the slope formula to find slope m

Substitute in points [Slope Formula]:                                                            [tex]\displaystyle m=\frac{5-7}{9-3}[/tex][Fraction] Subtract:                                                                                          [tex]\displaystyle m=\frac{-2}{6}[/tex][Fraction] Simplify:                                                                                          [tex]\displaystyle m=\frac{-1}{3}[/tex]

Expand and simplify (2x+1)(x+3)

Answers

Answer:

2x^2+7x+3

Step-by-step explanation:

(2x+1)(x+3)

2x^2+x+6x+3

2x^2+7x+3

help I'm doing an assignment and im stuck

Answers

Answer your answer is correct it is 9

Step-by-step explanation:

Answer:your correct! btw heyy

Step-by-step explanation:


WORTH 20 POINTS
please help me I really need help

Answers

Answer:

18.4

Step-by-step explanation:

9.2 + 9.2 = 18.4

no the other answer was wrong. it’s not asking to add the total weight to each other. it’s asking what one book weighs.

9.4 is weight of 4 books.

9.4 divided by 4

ANSWER : one book weighs 2.35 pounds

the line with a slope of 1/3 and a y- intercept of - 15 intersects the line passing through which of these pairs of points?

Answers

Answer:

Options (C), (D) and (E)

Step-by-step explanation:

Slope of the given line = [tex]\frac{1}{3}[/tex]

Any line having same slope will be parallel to the given line otherwise the lines will intersect.

Therefore, we will find the slope of the lines passing through two points given in the options.

Option A

Slope of the line passing through (12, -13) and (15, -12)

m = [tex]\frac{y_2-y_1}{x_2-x_1}[/tex]

   = [tex]\frac{-13+12}{12-15}[/tex]

   = [tex]\frac{1}{3}[/tex]

Therefore, both the lines are parallel having no point of intersection.

Option B

Slope = [tex]\frac{-9+7}{18-24}[/tex]

          = [tex]\frac{1}{3}[/tex]

Both the lines are parallel having no point of intersection.

Option C

Slope = [tex]\frac{-20+21}{15-18}[/tex]

          = [tex]-\frac{1}{3}[/tex]

Therefore, both the lines will intersect.

Option D

Slope = [tex]\frac{-15+14}{30-36}[/tex]

          = [tex]\frac{1}{6}[/tex]

Both the lines will intersect each other.

Option E

Slope = [tex]\frac{-11+10}{24-30}[/tex]

          = [tex]\frac{1}{6}[/tex]

Both the lines will intersect each other at a point.

Options (C), (D) and (E) are the correct options.

helpppp plssss :))))))((((

Answers

Answer:

a= 80

b= .25

Step-by-step explanation:

We know that a has to equal 80 because

[tex]a(b)^0=80\\a=80[/tex]

We can then just solve for b

[tex]80(b)^1=20\\b=\frac{20}{80} \\b=.25[/tex]

3x+16=7x


answer please

Answers

Answer:

x = 4

Step-by-step explanation:

We have the algebraic expression 3x + 16 = 7x and are asked to solve.

When we need to solve for x, we need to get x alone always.

So 3x + 16 = 7x.

Subtract 3x from both sides :

16 = 4x

Divide 4 from both sides :

x = 4

Answer:

[tex] \large \boxed{x = 4}[/tex]

Step-by-step explanation:

Goal

Solve for x-term.

Given

Equation

[tex]3x + 16 = 7x[/tex]

Step 1

Combine like terms. We move 3x to subtract 7x since we can't add with a constant with a variable.

[tex]16 = 7x - 3x \\ 16 = 4x[/tex]

Step 2

Move 4 to divide 16 because we need to make x-term as the subject of equation.

[tex] \frac{16}{4} = x \\ 4 = x[/tex]

Step 3

If you are not sure that the answer is correct, we can check the answer by substituting x = 4 in the equation.

[tex]3x + 16 = 7x \longrightarrow 3(4) + 16 = 7(4) \\ 12 + 16 = 28 \\ 28 = 28[/tex]

The equation is true for x = 4. Hence, the solution is x = 4

please help a girl out I'm so confused

Answers

Answer:

first pays 60

Step-by-step explanation:

PLEASE HELP :))
3
Solve for x.
6
12
5
r-1

Answers

Answer:

12 is the answer

Step-by-step explanation:

12 is the answer

Find the value of x pls help thank u so much

Answers

Answer:

7.81

Step-by-step explanation:

Answer:

[tex] \sqrt{66} [/tex]

Step-by-step explanation:

By geometric mean property:

[tex]BD = \sqrt{6 \times 5} = \sqrt{30} \\ \\ In \: \triangle ABD: \\ by \: pythagoras \: theorem : \\ \\ AD^2 = AB^2 + BD^2 \\ \\ {x}^{2} = {6}^{2} + {( \sqrt{30}) }^{2} \\ \\ {x}^{2} = 36 + 30 \\ \\ {x}^{2} = 66 \\ \\ x = \sqrt{66} [/tex]

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