What is sin45°*sin30°*cos60°

Answers

Answer 1

Answer:

[tex]\frac{\sqrt{2} }{8}[/tex]

Step-by-step explanation:

Using the exact values of the given trig functions, then

sin45° × sin30° × cos60°

= [tex]\frac{\sqrt{2} }{2}[/tex] × [tex]\frac{1}{2}[/tex] × [tex]\frac{1}{2}[/tex] = [tex]\frac{\sqrt{2} }{8}[/tex]


Related Questions

⬚︎ - 5 = 6. what is the value of the square

Answers

11 is the value of the square

We are planning a reception for our daughter. The hall that we are renting charges a $90 cleanup fee. In addition to the cleanup fee, they charge $29 per guest for food and drinks.
If we have $3,100.00 available, what is the maximum number of guest we can invite without going over our budget?

Answers

Answer:

The equation is y = 29x + 90. So, if you plug in 3,100.00 for y.

3,100.00 = 29x + 90

3,100.00 - 90 = 29x

3,010.00 = 29x

3,010.00/29 = 29x/29

x = 103 guests

a rental car company charges a customer $60 plus $0.32 per mile. write the equation that best describes the relationship between the cost, y, of renting the car and the number of miles, x, the car was driven​

Answers

Answer:

0.32x + 60= y

Step-by-step explanation:

Solve for c.

a (b – c) = d


a) c= d - ab/a

b) c= ab – d/b

c) c= ab – d/a

d) c= ab + d/а

Answers

Answer:

[tex]c=\frac{ab-d}{a}[/tex]

Therefore, the option 'c' is true

Step-by-step explanation:

Given the expression

[tex]a (b - c) = d[/tex]

Let's solve for c

[tex]a (b - c) = d[/tex]

Step 1: Add -ab to both sides

[tex]ab-ac+\left(-ab\right)=d+\left(-ab\right)[/tex]

[tex]-ac=-ab+d[/tex]

Step 2: Divide both sides by -a

[tex]\frac{-ac}{-a}=\frac{-ab+d}{-a}[/tex]

[tex]c=\frac{ab-d}{a}[/tex]

Hence, we conclude that:

[tex]c=\frac{ab-d}{a}[/tex]

Therefore, the option 'c' is true

Answer:

C) c=ad-d/a

Step-by-step explanation:

just took the test

HELP ASAP
i need too know these

Answers

3) 4
I know this lol

Answer:

3. y = 4

4. y = 40

Step-by-step explanation:

3. To find y, input the value of 2 for x in the equation y = 3x - 2.

y = 3(2) - 2

y = 6 - 2

y = 4

y is 4 when x is 2.

4. To find the answer we first have to make an equation in y=mx + b form, where b is the y-intercept and m is the slope. We know that the y-intercept is -5 because the table tells us that when x is zero, y is -5. So, we can use the y-intercept and a point In this example I will use point (6, 13)) to find the slope:

Input the values you know into the equation:

13 = 6m - 5

Add 5 to both sides to isolate the 6m:

18 = 6m

Divide both sides by 6 to isolate the m:

3 = m

Our slope is 3. Now that we know the slope and y-intercept, we can make our equation:

y = 3x - 5

We can use this equation to find y when x is 15:

Input 15 in place of x:

y = 3(15) - 5

Solve:

y = 45 -5

y = 40

When x is 15, y is 40.

Hope this helps :)

PLEASE HELP ASAP!!! Normal people- me- I WILL MARK FIRST ANSWER BRAINLIEST BUT IT HAS TO BE AN ACTUAL ANSWER (the question is in the image)

Answers

Answer:

It would be B

Step-by-step explanation:

A polynomial identity is shown, where p stands for a polynomial.

x3+y3=p(x2−xy+y2)
ON TIMED ASSESMENT PLEASE HELP ASAP

Answers

Answer:

p=x+y

Step-by-step explanation:

Answer:

p=x+y

Step-by-step explanation:

that is the answer

-3/8(-4y+z) what is the answer to this? By simplifying.

Answers

Answer:

3y/2 - 3z/8 is the answer

Answer:

Step-by-step explanation:

PLEASE HELP AS SOON AS POSSIBLE (THANK YOU VERY MUCH IF YOU DO)

Answers

Answer:In this equation, we can start by understanding that "x" has a value of 8, as given in the ordered pair. When multiplied by 5, this leads to "40 - 2y = 30". Next, we can subtract 40 from both sides of the equation. This leads us to a value of "-2y = -10". The next step would be to divide both sides by -2 as a way of isolating "y", which leads us to a final value of "y = 5". The final ordered pair would be (8,5).

Step-by-step explanation:

I need help and the time is running please help

Answers

Answer:

I think its B

Step-by-step explanation:

I'm sorry if I'm wrong. I'm busy

Answer:

????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????:P

Charlotte makes crepes using 5/8 cup of milk for every 1/2 cup of flour. She wants to know the amount of milk uses per cup of flour.

Answers

Answer:

1 1/4

Step-by-step explanation:

I got it right.

The milk uses per cup of flour will be 5/4 cups of milk per cup of flour.

What is Algebra?

Algebra is the study of algebraic expressions, while logic is the manipulation of those concepts.

The acronym PEMDAS stands for Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This rule is used to answer the problem correctly and precisely.

Charlotte makes crepes using 5/8 cups of milk for every 1/2 cup of flour.

She wants to know the amount of milk used per cup of flour. Then we have

⇒ (5/8) ÷ (1/2)

⇒ (5 / 8) x (2 / 1)

⇒ 5 / 4 cups of milk per cup of flour

The milk uses per cup of flour will be 5/4 cups of milk per cup of flour.

More about the Algebra link is given below.

https://brainly.com/question/953809

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Please ANSWER Correctly The Question will be Placed first then the graphs will be placed in order for answer choices from A - D

Answers

Answer:

C

Step-by-step explanation:

Answer:

Option C

Step-by-step explanation:

By looking at the points for (x,y) in the tables, we notice that the only graph that has the points at (-1,-3), (1,2) and you can assume the other points will be on the graph from the table.

Which expression could be used to determine the cost of a $50 video game after a 20 percent discount?
50 dollars (0.20)
50 dollars minus left-bracket (50 dollars) (0.08) right-bracket
50 dollars minus 0.80
50 dollars (0.80). please a b c or d?

Answers

Answer:

d

Step-by-step explanation:

to find a discount you would multiply 50(0.20) whatever amount you get you would subtract that from 50

this is the same as 50(0.80)

I’m pretty sure it’s d, because 50 (0.80) = 50 x 0.80 which equals 40 which is the 20% discount off of 50

your bill is $9.99. you leave a 10% tip. what is the final price of your meal?

Answers

10.10 should be the final price

please give brainliest as i’m trying to get to the next rank.

thanks!!

The drama club is selling tickets to their play to raise money for the show's expenses. Each student ticket sells for $7 and each adult ticket sells for $9.50. There was a total of $883.50 in revenue from all ticket sales and the drama club sold 27 more adult tickets than student tickets. Determine the number of student tickets sold and the number of adult tickets sold.

Answers

Answer:

Student tickets 38 and adult tickets 65

Step-by-step explanation:

38x7= $266

65x9.5= $617.50

$266+$617.50=$883.50

a quiz has 25 questions every correct answer scores 3 points Each incorrect answer loses 2 points. A question not answered scored 0 points. a student answers 15 questions 10 are correct how many points does he have?

Answers

Answer:

20

Step-by-step explanation:

10x3=30

5x-2=-10

10x0=0

30-10=20

20 points

Xiaoming is making cookies. Each batch of cookies uses3 eggs. If Xiaoming has 20 eggs, and assuming he has enough of the other ingredients to make the cookies what is the greatest number of batches that he can make ?

Answers

Answer:

6

Step-by-step explanation:

3(1)=3       3(2)=6          3(3)=9      3(4)=12     3(5)=15

3(6)=18     3(7)=21         3(8)=24

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

3(6)=18 is closest to 20

so the greatest number of batches Xiaoming can make is 6.

Solve for x.
(1/9)^x=27^x/9^2x-1

Answers

Answer:

x=-2

Step-by-step explanation:

What is the y-intercept of the function f()=4-5x? ​

Answers

Answer:

Step-by-step explanation:

4

4x+5y=9
4x−2y=2
x= y=

Answers

Answer:

For example, the solution to the equations 2x + 3y = 15 and x - y = -10 is x = -3 ... Equation 2: 4x + 2y = 20

Answer:

x=0, y=0 this is so easy

Solve for x and then find the measure of angle, A.

Answers

X= 25 because you set both equations equal to each other so 6x - 2 = 4x + 48 then to find the measure of the angle you plug in the value of X. So angle A = 6(25) -2 = 148

Answer:

x = 25 ; m∠A = 148°

Step-by-step explanation:

∠A ≅ ∠B (alternate exterior angles)

(6x - 2)° = (4x + 48)°

2x = 50

x = 25

m∠A = 6(25) - 2 = 148°

Determine how (if possible) the triangles can be proved similar.

Answers

Answer:

It's not similar :)

hope this helps<3

The triangles are not similar because the sides are not proportional.

What are Similar Triangles?

Similar triangles are those triangles which has the same shape but different size.

The length of sides and angles are proportional in similar triangles.

So we know that length of sides are proportional.

If we find the ratio of corresponding sides of the two triangles, then they must be equal to a common value.

We have only the length of two sides of each triangle.

If those sides are proportional, we must have an angle of each triangle to be equal.

Here, the angles formed by the intersecting lines are vertical angles and are thus equal.

Let's look if the sides are proportional.

20 / 36 = 5/9

24 / 42 = 4/7

Sides are not proportional.

Hence the given triangles are not similar.

Learn more about Similar Triangles here :

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i need help with the group 1 and group 2, what do i write in the boxes :((

Answers

I don’t see anything it’s a black screen

Figure PQRS is shown below.
(Figure P Q R S has 4 congruent sides. 2 angles are right angles.)
Which names accurately describe figure PQRS? Select three options.
- parallelogram
- pentagon
- rectangle
- rhombus
- trapezoid
Thanks! Will be awarding brainliest to the person who answers the quickest.

Answers

Answer:

parallelogram, rectangle, rhombus

Step-by-step explanation:

have a wonderful day

Parallelogram, rectangle, rhombus  names accurately describe figure PQRS.

What is Quadrilateral?

A quadrilateral is a four-sided polygon, having four edges and four corners.

The given figure PQRS is a quadrilateral.

A parallelogram is a two-dimensional geometrical shape whose sides are parallel to each other.

A rectangle is a special case of a parallelogram in which each pair of adjacent sides is perpendicular.

A rhombus is a quadrilateral whose four sides all have the same length.

The figure satisfies the properties of parallelogram, rectangle and rhombus.

Hence, parallelogram, rectangle, rhombus  names accurately describe figure PQRS.

To learn more on Quadrilateral click:

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Which equation has x = -i and x = = 21v3 as two of its solutions?

Answers

Answer:

The equation in option A is correct.

Step-by-step explanation:

Given the equation

[tex]\:y=x^4+13x^2+12[/tex]

Let us find the solution by setting y=0

[tex]x^4+13x^2+12=0\:\:\:\:\:[/tex]

[tex]\mathrm{Rewrite\:the\:equation\:with\:}u=x^2\mathrm{\:and\:}u^2=x^4[/tex]

[tex]u^2+13u+12=0[/tex]

if [tex]ab=0\:\mathrm{then}\:a=0\:\mathrm{or}\:b=0\:\left(\mathrm{or\:both}\:a=0\:\mathrm{and}\:b=0\right)[/tex]

[tex]u+1=0\quad \mathrm{or}\quad \:u+12=0[/tex]

[tex]u=-1,\:u=-12[/tex]

[tex]\mathrm{Substitute\:back}\:u=x^2,\:\mathrm{solve\:for}\:x[/tex]

[tex]x^2=-1,\:x^2=-12[/tex]

solving

[tex]x^2=-1[/tex]

[tex]\mathrm{For\:}x^2=f\left(a\right)\mathrm{\:the\:solutions\:are\:}x=\sqrt{f\left(a\right)},\:\:-\sqrt{f\left(a\right)}[/tex]

[tex]x=\sqrt{-1},\:x=-\sqrt{-1}[/tex]

[tex]x=i,\:x=-i[/tex]            ∵ [tex]\:\sqrt{-1}=i[/tex]

solving

[tex]x^2=-12[/tex]

[tex]\mathrm{For\:}x^2=f\left(a\right)\mathrm{\:the\:solutions\:are\:}x=\sqrt{f\left(a\right)},\:\:-\sqrt{f\left(a\right)}[/tex]

[tex]x=\sqrt{-12},\:x=-\sqrt{-12}[/tex]

[tex]x=2\sqrt{3}i,\:x=-2\sqrt{3}i[/tex]

Hence, the solutions are:

[tex]x=i,\:x=-i,\:x=2\sqrt{3}i,\:x=-2\sqrt{3}i[/tex]

Therefore, the equation in option A is correct.

In the following activity, write an equation to represent each verbal statement, and use it to find the value of each unknown number. Then, put the solution values in order from smallest to largest. [Note: The smallest solution is "first", and the largest solution is "fifth".]


1. fourth


Half of a number is added to four. This sum is equivalent to negative one.


2. first


The sum of a number and three is divided by five. The result is negative two.


3. third


The difference between four times a number and five has a result of negative eight.


4. second


The difference between a number and five is multiplied by negative two. The

resulting product equals fourteen.


5. fifth


The sum of a number and two is equal to the quotient of six and negative four.




I WILL GIVE BRAINLEST

Answers

Answer:

First x=-13 (The sum of a number and three is divided by five. The result is negative two.)

Second x=-10 (Half of a number is added to four. This sum is equivalent to negative one.)

Third x=-3.5 (The sum of a number and two is equal to the quotient of six and negative four.)

Fourth x=3.25 (The difference between four times a number and five has a result of negative eight.)

Fifth  x=12 ( The difference between a number and five is multiplied by negative two. The  resulting product equals fourteen. )

Step-by-step explanation:

We will consider number = x

1. Half of a number is added to four. This sum is equivalent to negative one.

[tex]\frac{1}{2}x+4=-1[/tex]

Now solving to find value of x

[tex]\frac{1}{2}x+4=-1\\\frac{1}{2}x=-1-4\\\frac{1}{2}x=-5\\x=-5*2\\x=-10[/tex]

So, value of x=-10

2. The sum of a number and three is divided by five. The result is negative two.

[tex]\frac{x+3}{5}=-2[/tex]

Solving:

[tex]\frac{x+3}{5}=-2\\x+3=-2*5\\x+3=-10\\x=-10-3\\x=-13[/tex]

So, value of x=-13

3. The difference between four times a number and five has a result of negative eight.

[tex]4x-5=-8[/tex]

Solving:

[tex]4x-5=8\\4x=8+5\\4x=13\\x=13/4\\x=3.25[/tex]

So, value of x=3.25

4. The difference between a number and five is multiplied by negative two. The  resulting product equals fourteen.

[tex](x-5)*-2=-14[/tex]

Solving

[tex](x-5)*-2=-14\\-2x+10=-14\\-2x=-14-10\\-2x=-24\\x=-24/-2\\x=12[/tex]

So, value of x=12

5. The sum of a number and two is equal to the quotient of six and negative four.

[tex]x+2=\frac{6}{-4}[/tex]

Solving:

[tex]x+2=\frac{6}{-4}\\x+2=-\frac{3}{2}\\x= -\frac{3}{2}-2\\x=\frac{-3-2*2}{2} \\x=\frac{-3-4}{2} \\x=\frac{-7}{2} \\x=-3.5[/tex]

So, value of x=-3.5

Now arranging based on values of x

x=-10, x=-13, x=3.25, x=12, x=-3.5

First x=-13 (The sum of a number and three is divided by five. The result is negative two.)

Second x=-10 (Half of a number is added to four. This sum is equivalent to negative one.)

Third x=-3.5 (The sum of a number and two is equal to the quotient of six and negative four.)

Fourth x=3.25 (The difference between four times a number and five has a result of negative eight.)

Fifth  x=12 ( The difference between a number and five is multiplied by negative two. The  resulting product equals fourteen. )

Question 2 plz help I’ll try my best to mark brainliest

Answers

Answer:

F. [tex]\sqrt{x}[/tex]

Step-by-step explanation:

if you replace x with 2 and plug these into your calculator, you can see that [tex]\sqrt{x}[/tex] has the least value

isolate the variable on the following problem. show your work.

11z= 4​

Answers

Divide by 11 to make z by itself
z = 4/11
(1/11)(11z)= 4(1/11)
Z= 4/11 is the answer in fraction form

YOU GET CORRECT YOU GET BRAINLIEST!!!!!!!

Answers

The answer is 6 you just divide

Answer: 6

Step-by-step explanation:

Every week, Hector’s 20 hours earns $210.00. He earns a constant amount of money per hour.

Part B
Write an equation that can be used to determine Hector's earnings, in dollars, m, for h hours of work.

Answers

Answer: 20 weeks in 1 week

in 2 weeks 40

Step-by-step explanation:

This proves that the equation is true

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