Please help. Find the exact value by using a half-angle identity.


tan(7pi/8)



1 [square root 2]

1 - [square root 2]

-1 + [square root 2]

-1 - [square root 2]

Answers

Answer 1

Answer:

i hope you figure it out the answer

Step-by-step explanation:

did you remember me im jade


Related Questions

Mrs. Johnson borrows $1400 with an interest rate of 5.5%. How much interest does she pay if she pays off the debt in 8 months?

Answers

Answer:

$616 in debt

Step-by-step explanation:

5.5% is equal to 0.055 so you multiply that by $1400 to get $77.

$77 is the interest rate.

You then multiply $77 by 8 months.

How to find the discount

Answers

“The basic way to calculate a discount is to multiply the original price by the decimal form of the percentage. To calculate the sale price of an item, subtract the discount from the original price. You can do this using a calculator, or you can round the price and estimate the discount in your head.”

93% marked up 35? i need it like nowwwww

Answers

Answer:

How do you calculate a 35% markup?

Simply take the sales price minus the unit cost, and divide that number by the unit cost. Then, multiply by 100 to determine the markup percentage.

HELP I GIVE POINTS FOR THIS and brainliest Use the recursive formula f(n) = 0.4 ⋅ f(n − 1) + 11 to determine the 2nd term if f(1) = 4.

Answers

Answer:

The second term is 12.6

Step-by-step explanation:

Let us solve the question

∵ The recursive formula f(n) = 0.4 ⋅ f(n − 1) + 11

f(1) = 4

→ To find the 2nd term, sunstitute n by 2

n = 2

∴ f(2) = 0.4 · f(2 - 1) + 11

f(2) = 0.4 · f(1) + 11

→ Substitute f(1) by 4

∵ f(2) = 0.4 · 4 + 11

→ Simplify the formula

∴ f(2) = 1.6 + 11

f(2) = 12.6

The second term is 12.6

10 points
3. What is the slope of the line that passes through the points (2,6) and
(-2,5) ?
O A. undefined
O B. Zero
Oc. 114
OD. -1/4

Answers

Answer:

I think u kept option incorrect but the correct answer is 1/4

Please answer I will mark branliest

Answers

Answer:

C

Step-by-step explanation:

To find the volume of a cube, raise the value of one side to the third power. 2.5 centimeters to the third power is 15.625, which can also be expressed as the fraction 125/8

Answer: choice C

Step-by-step explanation:

Since V = s^3

And side length = 2.5

V = (2.5)^3

V = 15.625

V = 125/8 cm^3

\angle a∠aangle, a and \angle b∠bangle, b are complementary angles. \angle a∠aangle, a measures 67^\circ67

67, degrees.
What is the measure of \angle b∠bangle, b?

Answers

Answer:

Assuming the question is asking for angle B, it measures 23°

Step-by-step explanation:

If angle A = 67°, and angle A and angle B are complementary, then you know they add up to 90°.

angle A + angle B = 90°

67° + Angle B = 90°

Angle B = 23°

Answer:

68

Step-by-step explanation:

right on khan

What is the value of x in the equation x -3/4 = 5 1/6

Answers

Step-by-step explanation:

x-3/4=5 1/6

(4x-3)/4=31/6

(4x-3)/2=31/3

12x-9=62

12x=71

X=71/12

Which expression is equal to 6^4? 10
24
4^6
6⋅6⋅6⋅6

Answers

Answer:

6⋅6⋅6⋅6

Explanation: The  exponent refers to the number of times a number is multiplied by itself.  6^4 represents that 6 is being multiplied 4 times.

[tex]6^{4}[/tex]

Base ⇒ 6

Exponent ⇒ 4

Bob and chris share some money in the ratio 2:3.
Bob receives £8
Work ouy how much Chris receives.​

Answers

Answer:

Chris will receive 4 euros

Answer:

12

Step-by-step explanation:

A plumber charges his customers $25.70 per hour, h, plus a $54.50
service fee. On Tuesday, he earns $118.75 for fixing Mrs. Goodwill's
sink.
Mrs. Goodwill also hires an electrician to repair several damaged
outlets in her home. The electrician charges $35.22 for each individual
outlet repair, r, plus a $62 service fee.
If the electrician charges Mrs. Goodwill a total of $167.66, which
equation shows how to determine the number of individual outlet
repairs correctly?
A. 35.22-62r = 167.66
B. 35.22r -62 = 167.66
C. 35.22 +62r = 167.66
D. 35.22r + 62 = 167.66

Answers

Answer:

D

Step-by-step explanation:

multiplying 35.22 with r since this amount is charged for every repair and then adding 62 since that is the additional fee

Find the area of this isosceles trapezoid.

Answers

Answer:

431

Step-by-step explanation:

Genevieve drew a right triangle such that one of its acute angles is five times the measure of the other acute angle. Find the measure of the smallest angle of the triangle.

Answers

Answer:

15°

Step-by-step explanation:

Let the smaller angle be xThen the other angle is 5x

Sum of acute angles equals to 90°

x + 5x = 90°6x = 90°x = 90°/6x = 15°

The smallest angle is 15°

1 quart of milk (32 oz) for $1.28. Whts the answer?​

Answers

the answer to what? we have no context.

Answer:

$0.04/oz

Step-by-step explanation:

If the question is the unit price per ounce, then is it

$1.28 / 32 oz = $0.04/oz

HELP PLEASE MATH WILL GIVE BRAINLIST​

Answers

Answer:

y=1/3x

Step-by-step explanation:

the third one

how do you find x when y=-3

Answers

Answer:

ermm there should be an other equation right?

-write each product using an exponent 6 x 6 =

Answers

6^2
An exponent describes a number being multiplied by itself. 6 * 6 is basically saying they’re are two sixes multiplied so 2 is the exponent (6 is the base)

The product is expressed as an exponent as 6 x 6 = 6².

Given data:

To write the product 6 x 6 using an exponent, we can express it as 6².

The different Laws of exponents are:

mᵃ×mᵇ = mᵃ⁺ᵇ

mᵃ / mᵇ = mᵃ⁻ᵇ

( mᵃ )ᵇ = mᵃᵇ

mᵃ / nᵃ = ( m / n )ᵃ

m⁰ = 1

m⁻ᵃ = ( 1 / mᵃ )

When we multiply a number by itself, we can represent the repeated multiplication using an exponent. In this case, we have 6 multiplied by 6, which is the same as saying 6 raised to the power of 2 (6²).

The exponent 2 indicates that we are multiplying 6 by itself 2 times.

Hence, the product 6 x 6 can be written as 6².

To learn more about exponents click :

https://brainly.com/question/28966438

#SPJ2

The ratio of pens to pencils is 5 to 4. If there are 25 pencils, how many pens are there?

Answers

Answer: 20 pens

5x5=25

5x4=20

The weight of oranges growing in an orchard is normally distributed with a mean weight of 6.5 oz. and a standard deviation of 1.5 oz. Using the empirical rule, determine what interval would represent weights of the middle 99.7% of all oranges from this orchard.

Answers

Add 3 standard deviations above and below the mean to get the range in which 99.7% of the data in a normal distribution will fall
6.5 + 4.5 = 11
6.5 - 4.5 = 2
So 2 to 11 ounces would be the interval

Answer:

(3.5, 9.5)

Step-by-step explanation:

μ=6.5

σ=1

Solve for X:

Need help ASAP

Answers

Divide your answer since they intersect!

Answer:

x = 20°

Step-by-step explanation:

So basically, since the 2 values are on the opposite side of an "x," you just set the 2 values each to each other and solve for x.

6x - 20 = 100

+20 +20

6x = 120

÷6 ÷6

x = 20

Mae Ling earns a weekly salary of $390 plus a 8.0% commission on sales at a gift shop. How much would she make in a work week if she sold $4,300 worth of merchandise?

Answers

Answer:

She would make $734 in a work week if she sold $4,300 worth of merchandise.

Step-by-step explanation:

First, you should calculate the amount she would receive on comissions by multiplying the amount she sold for 8%:

$4,300*8%=$344

Now, you have to add the weekly salary plus the amount she receives for the comission on sales:

$390+$344=$734

According to this, the answer is that she would make $734 in a work week if she sold $4,300 worth of merchandise.

What is the y-intercept of a line that has a slope of -3 and passes through point (0, -7)?
-7
3
0
4​

Answers

Answer:

-7

Step-by-step explanation:

The y intercept of a line is the y value of the line when the x value = 0

In this case we are given the coordinates (0, -7)

so when x =0   y= -7

Therefore, the y- intercept is -7

Answer:

-7

Step-by-step explanation:

The y intercept of a line is the y value of the line when the x value = 0

In this case we are given the coordinates (0, -7)

so when x =0   y= -7

Therefore, the y- intercept is -7

The ratio of cherry candies to grape candies in a bag is 3:5. After your friend eats half of the grape flavored candies and only one cherry flavored candy, the ratio of cherry to grape candies is 7:6. How many candies are left in the bag?

Answers

Answer:

65

Step-by-step explanation:

I'm not completely sure if this is correct but this is what I got:

cherry candies: c ; grape candies: g

the ratio of the cherry candies to the grape candies is 3:5 so c/g=3/5 so c=3/5g

when you eat 1 cherry candy and half of the grape candies the ratio becomes (c-1)/(g/2)=7/6

I used substitution so now it becomes (3/5g-1)/(g/2)=7/6 if you solve this g will equal to 60. This number means that there was 60 grape candies originally. With this,  you can solve for the number of cherry candies that you originally had (which is 36 because the ratio is 3:5)

so now you halve the number of grape candies which is 30 and take one off from the cherry candies which is now 35 (cherry:grape = 7:6 = 35:30)

there are now 65 candies altogether

A ratio shows us the number of times a number contains another number. The total number of candies that are left in the bag is 65.

What is a Ratio?

A ratio shows us the number of times a number contains another number.

The ratio of cherry candies to grape candies in a bag is 3:5. Therefore, we can write the ratio of the cherry to grapes as,

Cherry / grapes = 3/5

Multiply both the numerator and the denominator of the ratio with x,

Cherry / grapes = 3x/5x

Therefore, the number of Cherry and grapes in the initial was 3x and 5x, respectively.

Further, it is given that your friend eats half of the grape flavored candies and only one cherry flavored candy, the ratio of cherry to grape candies is 7:6. Therefore, we can write the ratio as,

[tex]\dfrac{3x - 1}{\frac{5x}{2}} = \dfrac{7}{6}[/tex]

Now, to get the real numbers we can write,

[tex]\dfrac{3x - 1}{\frac{5x}{2}} = \dfrac{7}{6} \times \dfrac{y}{y}\\\\\dfrac{3x - 1}{\frac{5x}{2}} = \dfrac{7y}{6y}[/tex]

Thus, we got two equations,

3x - 1 = 7y

5x/2 = 6y

Solving the second equation for x,

5x/2 = 6y

5x = 12y

x = 12y/5

Substitute the value of x in the first equation,

3x - 1 = 7y

3(12y/5) - 1 = 7y

y = 5

Furthermore, the total number of candies can be written as,

6y + 7y

= 6(5) + 7(5)

= 30 + 35

= 65

Hence, the total number of candies that are left in the bag is 65.

Learn more about Ratios:

https://brainly.com/question/1504221

#SPJ5

Dhdgxgxgxg g g gg gxxgdgd

Answers

Answer:

B

Step-by-step explanation:

4:6 = 2:3

2:3 = 2:3

8:12 = 2:3

4:5 = 4:4

3. A price plus 6% tax is equal to $4.24. Find the original price.

Answers

Answer:

$4.00

Step-by-step explanation:

(1.06) = 4.24

x= 4.24/1.06

x= $4.00

What is the mean of the measures of the three exterior angles of a triangle if two of the interior angles have measures of 63 and 78 degrees?

Answers

Answer:

Mean score=120

Step-by-step explanation:

Areas of a triangle add upto 180degrees (63+78+x=180) 141+x= (x=180-141) x=39Areas on a straight line add upto 180degrees

180-78=102

180-63=117

180-39=141

102+117+141=360Mean=360/3 =120

ASAP

options:
left
right
up
down​

Answers

Right 6 and down 5 hope this helps you out

Which ratio forms a proportion with 1442? Bruh I will give y’all points and brainlesst

Answers

Answer:

7/21

Step-by-step explanation:

14/42 is 7/21 in another form

Original price $3:29;markdown 35%
What the value please help me

Answers

Need help on this too

Answer:

2.94

Step-by-step explanation:

3.29 - 35/100 = 2.94

Help me solve this problem please

Answers

Answer: r^8

Step-by-step explanation:

r to the power 16-8

r^8 , third choice

Other Questions
4.1 Assignment Create a Brochure Name:Date:Directions: How can you learn more about Safety & First Aid within your local area? Research resources in your local community (or communities nearby if you are rural) to determine what is available (i.e. health fairs, newsletters, first aid courses, etc.). Check with local hospitals, clinics, recreation centers, and the health department. Find five different resources and create a brochure to inform others in your community of your findings. Be sure to use your own words and include the following information within your brochure: Organization Names and purpose (5 pts)Graphics or images (5 pts)Description of resources (classes, certifications, etc.) (5 pts)What types of information will be learned by using these resources? (5 pts)List the websites or contact information that someone might go to find more information about these resources. (2 pts)Describe how you can use these resources for your own knowledge and skills. (3 points) Point A is the incenter of DEF.What is the value of n?A. 7B. 11C. 14D. 15 In a paragraph compare North America and South America focus on physical features In Hinduism the goal is to reachA. VarnasB. MokshaC. VishnuD. Shiva Esta familia hizo actividades en la playa. Completa la oracion con elverbo.Usa el pretrito de saber.Vi la playa, y _______ que quera hacer surf todoel da. Given f(x) = 6(1 x), what is the value of f(7)? Why are people against this amendment idea of child labor Proportions! Please help quick! Today, many of us rely on "external brains" to help usO A. move our limbs.O B. remember things.O C. enjoy nature.O D. chew our lunch. PLEASE HELP ASAPWhich function has an inverse that is a function BRAINLIEST IF CORRECT REPORTED IF YOU PUT A RANDOM ANSWER YEAH SORRY BUDDY 100 POINTS. Which of the following questions would help you figure out the falling action in a story?A.What is the main obstacle the protagonist must overcome?B.What events fuel the conflict and make it more intense?C.What is the most intense moment in the story?D.What is happening as a result of the climax? Please help me thank you I appreciate it first answer get brainiest -3(4x2)-2x please also show your work WILL MARK BRAINLIEST! PLEASE HELP!(please try to show your work)A pizzeria offers toppings of mushrooms, sausage, onions, onions olives, and peppers. How many different ways can a pizza be made, using anywhere from 0 to 5 toppings? Please help, I forgot how to solve a question like this. Write a funny story about the snow man that's goes sledding PLEASE ANSWER ASAP WILL GIVE BRAINLIEST.A function is represented by the graph.Complete the statement by selecting from the drop-down menu.The y-intercept of the function y=2x+8 is Choose... greater than less than or equal to the y-intercept of the function represented in the graph. Hey its Colter Wall, ya should listen to my music what is the point of Christmas? explain in 50 words or more