What is the exact value of sin(75°)?

Answers

Answer 1

Step-by-step explanation:

sin 75°: Now using the formula for the sine of the sum of 2 angles, sin(A + B) = sin A cos B + cos A sin B, we can find the sine of (45° + 30°) to give sine of 75 degrees.

Answer 2

Answer:

D.)

Step-by-step explanation:

Edge


Related Questions

solve the inequality -9 ≤ 7-8v cmon bro

Answers

Answer:

v  ≤  2

Step-by-step explanation:

The endpoints of a side of rectangle ABCD in the coordinate plane are at A (3,9) and
B(5, 1). Find the equation of the line that contains the given segment.
The line segment is CD and point C is at (9,2).
The equation is

Answers

Answer:

y = - 4x + 38

Step-by-step explanation:

A(3, 9)

B(5, 1)

[tex]m_{AB}[/tex] = [tex]\frac{1-9}{5-3}[/tex] = - 4

CD║AB

C(9, 2)

y - 2 = - 4(x - 9)

y = - 4x + 38

What is 414 divided by 15? SHOW YOUR WORK!!

Answers

Answer:

the answer would be 27.6.

Step-by-step explanation:

sorry for the horrible handwriting, hopefully u can understand this!!

Annual sales for a small boutique were $863,000in 2010. Since then the sales have increased at a rate of 2.5% per year. Find the sales in 2018

Answers

Answer:

1,035,600

Step-by-step explanation:

since the rate sales increased 2.5% per year 8*2.5=20/100=0.2*863,000=172,600 and since we already are earning 863,000 so 863,000+172,600=1,035,600

if you ran 4 miles in 36 minutes how many minutes would you have to run in one mile?Explain

Answers

Answer:

9 minutes

Step-by-step explanation:

(4x)m+(5x+3)m+(5x+1)m=102
Find the sides of the triangle. Perimeter =102

Answers

Here is the set up:

Side 1 is 4x.

Side 2 is 5x + 3

Side 3 is 5x + 1

The perimeter is 102.

Perimeter = side 1 + side 2 + side 3

102 = 4x + 5x + 3 + 5x + 1

102 = 14x + 4

Take it from here.

LET ME KNOW IF I GOT THEM ALL RIGHT PLS

Answers

Answer:

I think so

Step-by-step explanation:

It’s 0 because they dove down and got it

n= 101
p= 0.24
p(0.20 < p <0.30) =

Answers

Answer:

N = 101

p = 0.24

p ( 0.2 ) < p < 0.3

Step-by-step explanation:

Twenty five more than twice a number is fifty five. What is the number?

Answers

Answer:

15

Step-by-step explanation:

15x2 = 30

30+25 = 55

Answer:

Step-by-step explanation:

Note all operations:

twenty-five more than → addition → +25twice a number → multiplication → ×2is fifty-five → equal to → =55

Create an equation, and make the unknown number be x. 25 is added to x multiplied by 2, which, in all, equals 55:

[tex]2x+25=55[/tex]

Now solve for x. Subtract 25 from both sides:

[tex]2x+25-25=55-25\\\\2x=30[/tex]

Divide both sides by 2:

[tex]\frac{2x}{2}=\frac{30}{2} \\\\x=15[/tex]

The number is equal to 15.

:Done

CHECK:

Insert the value of x to see if it is true:

[tex]2(15)+25=55\\\\30+25=55\\\\55=55[/tex]

This is true, so the value of x is also true.

Please solve for X and explain with steps

Answers

log₃(-2 tan(x)) = 1/2

Write both sides as powers of 3, and use the property [tex]b^{\log_ba}=a[/tex]:

[tex]3^{\log_3(-2\tan x)}=3^{\frac12}[/tex]

-2 tan(x) = √3

Then solve for x :

tan(x) = -√3 / 2

x = arctan(-√3 / 2) +

x = -arctan(√3 / 2) +

where n is any integer.

Can someone help me with this?

Answers

Plug in 5 for x
4(5) = 4 * 5 = 20

Answer:

20

Step-by-step explanation:

4x. x=5

4*5 20

Hope this helps hit the crown :D

Find the distance between E(5,3) and F(-4,3).

Answers

Answer:

3 - 3 = 0 units There is no distance, the points are in the same place.

Step-by-step explanation:

600:450 and 4:3 why is it equivalant

Answers

Answer:

600 ÷ 4 = 150

450 ÷ 3 = 150

The same thing either way.

They are considered proportional ratios

Because 600:450 is the same as 4:3 because divide 600 by 150=4
And 450 divide by 150=3 which makes them equivalent

PLS HELPPPPPPP CHECK THE PICTURE ABOVE PLS :((

Answers

Answer:

(6+7)

2^4

2^2

Step-by-step explanation:

Think of the order of operations or PEMDAS: Parentheses, exponents and roots, multiplication, addition, and subtraction. When solving an equation you use the order of PEMDAS.

-24 = -8(5x-7) im confused

Answers

Answer:

x=2

Step-by-step explanation:

In order to solve the inequality, first simplify it. -8 (5x -7) can be simplified be distributing. Multiply -8 to each term.

-24 = -40x + 56  now you can solve it start by subtracting 56 on both sides

-80 = -40x now divide -40 on both sides

2=x

I hope this helps :)

have a nice day

random variables, probability distributions and expected value

A community festival organizes a fundraiser for their local park. They sold 25,000 tickets at $20 each. The grand prize is $5,000. There are two prizes valued at $2,000, three prizes valued at $1,000, five prizes of $500, and ten prizes of $100. What is the expected value of this raffle? Round to the nearest cent. Do not round until the final calculation.

Answers

Answer:

-19.38

Step-by-step explanation:

E(x)=4,980*1/25000+1,980*2/25,000+980*3/25,000+480*5/25,000+80*10/25,000-20*24,979/25,000

E(x)=0.1992+0.1584+0.1176+0.096+0.032-19.9832

E(x)= -19.38

Some parts of California are particularl earthquake prone. Suppose in one metropolitan area, 40% of all homeowners are insured against earthquake damage. Four homeowners are selected at random. Let X denote the number among the four who have earthquake insurance. Assume that the event of each homeowner having or not having insurance is independent.

Required:
a. Find the probability mass function of X?
b. What is the most likely value for X?
c. What is the probability that at least two of the four selected have earthquake insurance?

Answers

Answer:

Kindly check explanation

Step-by-step explanation:

Given that:

Percentage of insured home owners = 40% p = 0.4

Selecting 4 home owners (x) ;

x = 0, 1, 2, 3, 4

Using bernoulli;

nCx * p^x * (1 - p)^(n-x)

For X = 0

4C0 * 0.4^0 * 0.6^(4-0) = 0.1296

X = 1

4C1 * 0.4^1 * 0.6^(4-1) = 0.3456

X = 2

4C2 * 0.4^2 * 0.6^(4-2) = 0.3456

X = 3

4C3 * 0.4^3 * 0.6^(4-3) = 0.1536

X = 4

4C4 * 0.4^4 * 0.6^(4-4) = 0.0256

B.) The most likely value for X are 1 and 2 with probabilities of 0.3456 respectively.

C.) probability that atleast 2 of the 4 selected have earthquake insurance ;

P(X ≥ 2) = p(2) + p(3) + p(4)

P(X ≥ 2) = 0.3456 + 0.1536 + 0.0256

P(X ≥ 2) = 0.5248

Answer:

hope this photo helps. 1

Find the slope of (2,18) and (4,28)

Answers

5 is your answer because if you plot these on a graph you would know how many points there are in between them and there are 5

Find the inverse of the function.

Answers

Answer:

A) [tex]f^{-1}(n)= (n+2)^3[/tex]

Step-by-step explanation:

[tex]f(n) = \sqrt[3]{n} -2[/tex]

[tex]y = \sqrt[3]{n} -2[/tex]

[tex]y = n^{1/3}-2[/tex]

[tex]n = y^{1/3} -2[/tex]

[tex]n + 2 = y^{1/3}[/tex]

[tex]y = (n + 2) ^3[/tex]

[tex]f^{-1}(n) = (n + 2)^3[/tex]

Hope this helps!

Answer:

Option A

Step-by-step explanation:

f(n) =∛n-2

y= ∛n-2

Interchange y and n

n =∛y-2

Subtract -2 on both sides

n+2 = ∛y

both  both sides  to the 3rd power:

(n+2) to the 3rd power = y

Inverse :

f-1(n) =     (n+2) to the 3rd power  (option A)

You invite your friend to go to Peru. Tú invitas a tu amigo a ir a Perú. Tú invitan a tu amigo a ir a Perú. Tú invita a tu amigo a ir a Perú. Tú invitamos a tu amigo a ir a Perú.

Answers

•Choice A: Tú invitas a ti amigo a ir a Perú.

Answer:

its A

Step-by-step explanation:

reflection across y= -x

Answers

Answer:

option A) is correct.

Step-by-step explanation:

As we know that when we reflect across the line [tex]y=-x[/tex], the x-coordinate and y-coordinate would change places and be negated.

So the formula about the reflection across [tex]y=-x[/tex] will be:

(x, y) ⇒ (-y, -x)

From the graph, the vertices of the triangle are:

Vertex U = (-5, -2)Vertex T = (-3, -3)Vertex V = (-5, -5)

As the rule of reflection across [tex]y=-x[/tex] will produce the image with the vertices T', U' and V' which are as follows:

(x, y) ⇒ (-y, -x)

U(-5, -2) ⇒ (-y, -x) = U' (2, 5) T(-3, -3) ⇒ (-y, -x) = T' (3, 3) V(-5, -5) ⇒ (-y, -x) = V' (5, 5)

So, the vertices of U', T' and V' will be:

U' (2, 5) T' (3, 3) V' (5, 5)

Therefore, option A) is correct.

Find two positive numbers whose product is 64 and whose sum is a minimum. (If both values are the same number, enter it into both blanks.) slader

Answers

Answer:

X = 8, y = 8

Step-by-step explanation:

This question is an optimization problem. Two equations are going to be needed here

n = x+y

P = xy

Such that 64 = xy

When we divide through by x we get:

y = 64/x

So that n becomes:

n = x + 64/x

n = x+64x^-1

We take derivative

n' = 1-64x^-2

When n' = 0 then a min|max occurs

0 = 1-64x^-2

Such that:

64/x² = 1

Divide through by x²

64 = x²

x = √64

x = 8

Remember y = 64/x

So,

Y = 64/8

Y = 8.

X = 8, y = 8

Thank you!

Two opposite rays _____ form a line.

Answers

the answer is -
always

Answer:

always

Step-by-step explanation:

How would I do this?

-8 -x = x -4x

Answers

Answer:

71

Step-by-step explanation:

yw72wo9838388382828228

GUYS, I GOTM 1MILLIO0N DOLARS IN THE STOCK MAARKAT HOW MUCH IS 1 MILLION DOLLARS IN NE GOTIABLE US CUERENCY CONVERTED TO RUSSIAN RUBELS????/// PLS ILL GIV BRANLEST!11

Answers

Hi! I believe your answer is 77,435,300.00 Russian Rubles, which is equivalent to 1,000,000 U.S. dollars. I hope this helps you! Good luck and have a great day. ❤️✨

Answer:

76,922,200.00 RUB

Step-by-step explanation:

wow how in the heck did you do that 0-o your rich dude pls explain how u did it T-T

why is it important to know whether a number is positive or negative

Answers

its good to know if a number is positive or negative because something as simple as forgetting the signs such as - + could drastically change your answer

A line y = mx +b passes through point (8, – 6) and is parallel to y = -x +4.
What is the value of b?

Answers

Answer:

b = 2

Step-by-step explanation:

Since the two lines are parallel, their slope is the same.

Slope = -1

The function: y = -x + b

Plug in the coordinate values to solve for b.

-6 = -8 + b

-6 + 8 = b

2 = b

b = 2

I NEED HEL:P PLEASE ALL OF THIS

Answers

Answer:

sorry

Step-by-step explanation:

fjdskafjksl;fjklads;nvkanrdjknfvjlrcpd

I need help ASP Jason bought a video game for $60.00. He sold it for $72.00. What was the percent of the markup?

Answers

I believe he made a 17% profit

Please help and explain.

Answers

Answer:

Domain: All real numbers greater than or equal to 1.

Step-by-step explanation:

Answer 1: -14 is not in the domain

Answer 2: 4 is included in the domain

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