The master roofer wants to put the ladder on the side of the house but she doesn't
know if it can be set at the proper angle. What will be the angle of elevation if the
10-foot long ladder is placed 1 feet from the wall?

Answers

Answer 1

Answer: About 84.261 degrees

Step-by-step explanation:

To find the angle of elevation, we can create a triangle and solve for the angle.

First, we can imagine a triangle with side A being the ground between the base of the ladder and the wall, side B being the wall (from the base of the wall to where it touches the top of the ladder), and side C being the ladder (from where it touches the ground to where it touches the wall).

In the problem, it has already given us two of the side lengths we need to solve for the angle of elevation:

1. We know that the ladder is 10 feet tall, so we can say that side C is 10.

2. We know that the ladder base is placed 1 foot from the wall, so we can say that side A is 1.

The angle of elevation is the angle that the ladder is tilted from the ground, or the angle between the ground (side A) and the ladder (side C). These sides relative to the angle would be the adjacent (side A) and the hypotenuse (side C).

To calculate for the angle, we can use the cosine function. (cos = adjacent / hypotenuse)

To find the angle of elevation (which we can call angle b), we can use:

cos(b) = A / C

arccos(A / C) = b

(Note: arccos is the inverse of the cos function)

Then, we can plug in the values and get:

b = arccos(1 / 10)

b = 1.471 radians OR 84.261 degrees


Related Questions

what is the domain and range of this graph? I'll give brainliest

Answers

Answer:

the domain is -2 and the range is 0

Step-by-step explanation:

Answer:

x = (-∞, +∞), y = (0, +∞)

Step-by-step explanation:

The domain of the graphed function is any value and the range is all positive numbers:

x = (-∞, +∞)y = (0, +∞)

The circumference of circle P is 800 mm, the circumference of circle Q is 200 cm, and the circumference of circle R is 4 m. What is the sum of the distances around each circle?

Answers

Answer:

1002 i think

Step-by-step explanation:

sum is adding and circumference is already given so it should be 1002

A school's service club is sponsoring a dance in the
school gym to raise money for a local charity. The expenses will be
$625, and tickets to the dance will cost $8.50. The club members hope
to raise enough after expenses to donate at least $1000 to the charity.
Write an inequality that describes the situation. If the club members
sell 195 tickets, will they meet their goal?

Answers

Answer:

Yes, they only need 400 tickets to meet their goal, any more will exceed their goal.

Step-by-step explanation:

Solve
"7x^2+19x-6 = 0

Answers

Step-by-step explanation:

Given

7x² + 19x - 6 = 0

7x² + (21 - 2) x - 6 = 0

7x² + 21x - 2x - 6 = 0

7x( x + 3 ) - 2 ( x + 3 ) = 0

(x + 3 ) ( 7x - 2 ) = 0

Either

x + 3 = 0

x = - 3

Or,

7x - 2 = 0

7x = 2

x = 2 /7

So

x = - 3 and 2/7

Hope it will help :)

Answer:

x= -3,/2/7

Step-by-step explanation:

split the second term in 7x^2 + 19x-6 into two terms 7x^2+21x-2x-6=0

Factor out common terms in the first two terms7x(x+3)-2(x+3)=0

(x+3)(7x-2)=0

Factor out the common term x+3 hope that help x= -3,/2/7

A store sells jump ropes each jump rope costs the same amount during the sale the store reduces the price of each jump rope by $1.90 Marc spends $12.78 on 2 jump ropes at the sale price what was the price of 1 jump rope before the sale??

Answers

Answer:

8.29

Step-by-step explanation:

i took 12.78 divided by 2 and added 1.90

8x2 - 6x + 3 – 2x – 10x?

Answers

Answer:

8[tex]x^{2}[/tex] + 3 + -6x

Step-by-step explanation:

First we need to find the like terms so that we could add them. In this case the like terms are,

1. 6x , -2x , -10x

So, these are the only terms that we can add in this expression.

Hence,

=> 8[tex]x^{2}[/tex] + 3 + (6x - 2x - 10x)

=> 8[tex]x^{2}[/tex] + 3 + -6x

And this is as simple as this expression can go until we find the value of "x" which is not yet told.

Hope my answer helped.

Answer:

☺️

Step-by-step explanation:

Calculator mo.. Baka maka tulong sayo. God bless

help help its area but its easy dont guess plssss ill give brainiest to first right answer ty love you

Answers

42° the one on the left is the same on the right. (sorry for my answer earlier it wasn't loading at First)

Answer:

[tex]x = 110[/tex]

Step-by-step explanation:

[tex]42 + 28 + x = 180[/tex]

[tex]70 + x = 180[/tex]

[tex]x = 180 - 70[/tex]

[tex]x = 110[/tex]

[tex]42 + 28 + 110 { = }^{?} 180[/tex]

[tex]70 + 110 { = }^{?} 180[/tex]

[tex]180 = 180[/tex]

Jerrilyn wrote the following argument to prove that UV/VX = UW/WY in the figure below. (Picture) Which statement is missing in Jerrilyn's proof?

Answers

Answer: c

Step-by-step explanation:

y/3= -4

i hate mathss

Answers

Step-by-step explanation:

im lokking for a gf , i am 16

comment down

So since equations when u move them to a side, the signs change for this questions
Y/3 = -4
the 3 would go to the other side and go from division to multiplication
*always remeber to put the unknown on one side and numbers on another*
So:
Y=-4 x 3
Y= -12
Please give branliest <3hope it helped

A local fair has an entrance fee of $10. Each ride costs $1.25.
a. If Todd has $26.25, write an equation and determine how many rides could he ride
after he pays the entrance fee?
b. Explain the steps in solving the equation by naming the property or properties you used.
c. What mathematical symbol represents the word “is”?
d. What is the first step in solving this problem?
(Please answer as quick as YOU can!)

Answers

Answer:

Step-by-step explanation:

A. 26.25<=1.25x+10 because he can spend no more than 26.25

C. The '=' sign

D solve for X. Subtract 10 from both sides. Then divide both sides by 1.25.

Select all the expressions that are equivalent to 3x + 9 + 32 +9..
Please help

Answers

Answer:

b,c,d

Step-by-step explanation:

What is a solution to the system of linear equations?

(-3,0)
(-3,3)
(0,2)
(3,1)

Answers

Step-by-step explanation:

try adding . all the x vlues and the y values

Answer:

C) (0,2)

Step-by-step explanation:

just took the test on edg2021

What is the answer to the question listed below?

Answers

x squared + 4x + 4
x squared + 2x + 2x + 4
x squared + 4x + 2 + 2

That moment when you realize you don't know anything

Answers

Answer:

6.28 + 24 + 3 + 2 = 35.28 sq. units

Step-by-step explanation:

The screenshot is how I split it. (A semicircle with a radius of 2, a trapezoid (base a: 5, base b: 7, height 4), and two triangles (b1: 3, h1: 2; b2: 4, h2: 1)

To find the area of a semicircle, use the formula πr²/2. I'll use 3.14 for pi.

3.14(2²)/2

Square 2 to get 4.

3.14(4)/2

Multiply 3.14 by 4 to get 12.56.

12.56/2

Divide 12.56 by 2 to get 6.28

The semicircle is 6.28 units².

To find the area of a trapezoid, use the formula (a+b)h/2.

(5 + 7) * 4/2

Add 5 and 7 to get 12.

(12 * 4)/2

Multiply 12 by 4 to get 48.

48/2

Divide 48 by 2 to get 24.

The trapezoid is 24 units².

For the triangles, simply use this: bh/2

3 * 2 / 2

The 2's cancel out, so you're simply left with the first triangle being 3 units².

4 * 1 / 2

This really just becomes 4/2 as 4 * 1 is just 4.

4/2

Divide 4 by 2 to get 2.

The second triangle is 2 units².

Now that we know the areas of the four figures, add them together.

6.28 + 24 + 3 + 2

6.28 + 27 + 2

6.28 + 29

The area of the figure is 35.28 units².

Find g(-6) if g(x) = -5x – 2

Answers

Answer:

648=7

Step-by-step explanation:

What rule describes the translation of an image three units up and five units to the left?
A.(x, y) --> (x + 5, y - 3)
B.(x, y) --> (x - 3, y + 5)
C.(x, y) --> (x - 5, y + 3)
D.(x, y) --> (x + 3, y - 5)

Answers

C. Is the answer , have a good day m8. :)

Carlos is a member of a gym. He pays a monthly fee plus a per- visit fee. The equation y = 3x + 10 represents the monthly amount Carlos pays for x visits.
if Carlos pays $85 in the last month how many times did he visit the gym?

Answers

Answer:

25 times

Step-by-step explanation:

To find how many times he visited, plug in 85 as y and solve for x:

y = 3x + 10

85 = 3x + 10

75 = 3x

25 = x

So, Carlos visited the gym 25 times

The formula for the surface area of a cube is 6 s2 , where s is the length of one side of the cube. What is the volume of the cube shown below if each side is 5 ft long?

Answers

Answer:

125ft³

Step-by-step explanation:

The volume of a cube is expressed as

Where s = length of each(one) side.

From. The question, s= 5ft

Therefore,

The volume of the cube => (5ft)³

= 125 ft³

how do i solve this??

Answers

Answer: DNE, no solution

Step-by-step explanation:

You cant take the even root of a negative number without introducing the imaginary number 'i'

If you left $25.00 on your table for a $21.50 meal, what was the percent of the tip?

Answers

Answer: 3.5% with a 3.50 Tip

Reason: 25.00 - 21.50 = 3.50

3.5 percent tip.$3’aidlag

find the total amount in each account to the nearest cent if the interest is compounded twice a year.

$3750 at 10.25% for 2 years.

Answers

Answer:

$4579.90

Step-by-step explanation:

:)

please help, see attachment

Answers

Answer:

The length of DB is 8

Step-by-step explanation:

I know it doesn't look EXACTLY like the one in the diagram but I just followed the measurements provided

Entry tickets for a firework display were charged at £10
for children and £25 for adults. 800 people attended
the event and the ratio of adults to children was 7:9.

a.
Work out the total revenue from ticket sales

b.
60% of the tickets cost was given to charity.
How much was given to charity?

Answers

Answer:

Total revenue = $13,250

Amount given for charity = $7,950

Step-by-step explanation:

Children = $10

Adults = $25

Total people = 800

ratio of adults to children was 7:9.

Total ratio = 7 + 9 = 16

Adults = 7/16 × 800

= 0.4375 × 800

= 350

Adults = 350

Children = 9/16 × 800

= 0.5625 × 800

= 450

Children = 450

Total revenue = ($10 × 450) + ($25 × 350)

= $4,500 + $8,750

= $13,250

Total revenue = $13,250

60% of the tickets cost was given to charity.

Amount given for charity = 69% of $13,250

= 0.60 × $13,250

= $7,950

Amount given for charity = $7,950

Does anyone know the answer ?

Answers

the answer is K brainliest would be appreciated!

Where will the function y=1x−4 have a vertical asymptote?

Answers

Answer:

across the y-axis on a graph

Step-by-step explanation:

This is for today I have until tonight to finish someone help me plsss!!!

Answers

That seems very hard! Good luck
Ooohhh this looks harddddddddddd!!

Francisco has a cylindrical barrel 3 feet tall that he uses to collect rainwater. The barrel is not empty when rain begins to fall at a steady rate. Francisco checks the level 2.5 hours after the rain begins falling and finds that the water level in the barrel is 31.5 inches. He checks again 2.5 hours after his first check and finds that the water level is 32.5 inches. By how many inches does the water level increase for each additional hour of rainfall?

Answers

Answer:

Just try your best and try hard


Monica receives a flat rate of $25 and an hourly rate of $15 when she works. Which of the following equations represents the total amount d she earns
when she works hours?

Answers

Answer

d=25+15x I think

                   

Which situation can be represented by 12 x 52
A. Sara has 12 stickers, Randall has 5 more stickers than Sara,
B. Sara has 12 stickers, Randall has 5 fewer stickers than Sara,
C. Sara has 12 stickers, Randall has 5 times as many stickers as Sara,
D. Sara has 12 stickers, Randall has ļ times as many stickers as Sara.
OE.
E. Sara has 12 stickers, Randall has the same number of stickers as Sara,

Answers

Answer:

C

Step-by-step explanation:

can u please help me? i’ll give brainliest

Answers

it’s B because you put 12 in each of the equations
The answers are
A
B
Hope this helps
Other Questions
A tourist ignores the warning signs and leaves food in his car while he goes for a hike. A mama bear and her cub open the car door in six seconds. How long would it take each bear to open the car door alone if the cub needs 9 more seconds than the mama bear? can you help with this please I need help with this today answer please! i need both answers for both of the questions! help is greatly appreciated! The distance around the earth (circumference) is 4.0074 x 10 centimeters.Write this in decimal form. Solve the following system of equations by usingsubstitutiony = -x + 42x + 3y = 8 What do many Europeans receive when they retire? Which statement best helps to explain the observation that NH3(1) boils at -28C, whereas PH: (1) boils at -126C?AThe dispersion forces in NH3 are weaker than the dispersion forces in PH3.BThe dispersion forces in NH3 are stronger than the dipole-dipole forces in PHz.NH3 has hydrogen bonding that is stronger than the dipole-dipole forces in PH3DNH3 has hydrogen bonding that is weaker than the dipole-dipole forces in PH3. The value of 34 + 5 5 = ___. Numerical Answers Expected! Answer for Blank 1: URGENT!!! Find the value of x using the similar trapezoids below. Individual solute particles are broken apart from the solid by these particles. * a Solution b Insoluble c Solvent d Compounds Simplify 5 2y + (-8y) + 5.5. Please put them in order for 15 points true or false: The Japanese learned about the Chinese inventions of gunpowder and printing. HELP MEILL MARK BRAINLIESTTTTFind the value of x that makes the quadrilateral a parallelogram. What did Jan Baptista van Helmont's five-year willow tree investigation demonstrate ? The weight lost program should not consider your food choices, dislike, and your life style. True or false What does Q equal to Your friend gets to school wearing an outfit straight from the pages of a recent fashion magazine. He says he is dressing like the famous actors in the magazine. His pants are stark-white, he has an open-collared shirt, and preppy shoes. This is an example of what type of peer pressure? Which sentence best expresses the main idea of the passage the American scholar