A ladder 3m leans against a wall. The foot of the ladder is 80cm from the wall. The distance the ladder reaches up the wall is:

A Ladder 3m Leans Against A Wall. The Foot Of The Ladder Is 80cm From The Wall. The Distance The Ladder

Answers

Answer 1

Answer:

d

Step-by-step explanation:

hope this helps :)

Answer 2

The distance the ladder reaches up the wall is 289 cm. The correct option is E  289 cm

Pythagoras' theorem

The Pythagoras' theorem states that, in a right triangle, the square of the hypotenuse equals the sum of the squares of the other two sides

Let the length of the ladder be l

The distance of the foot of the ladder from the wall be f

and the distance the ladder reaches up the wall be h

By applying Pythagoras' theorem, we can write that

l² = f² + h²

From the given information,

l = 3m = 300 cm

f = 80 cm

Putting the parameters into the equation, we get

300² = 80² + h²

90000 = 6400 + h²

Then,

h² = 90000 - 6400

h² = 83600

∴ h = √83600

h = 289.1366

h ≅ 289 cm

Hence, the distance the ladder reaches up the wall is 289 cm. The correct option is E  289 cm

Learn more on Pythagoras' theorem here: https://brainly.com/question/14355334

#SPJ2


Related Questions

Please help with this lolll (A, B and, C are NOT answers, they're questions.)

Answers

Answer:

B

Step-by-step explanation:

The answer is b because ¼ can not go in to 2 ½ evenly (A), ¾ can not go into 2 ½ evenly either (c) so the only answer is B!

A = 10 bags
B = 5 bags
C = 3 bags

Kenny is building a box using 2 identical square pieces of wood and 4 identical rectangular pieces of wood, as shown. What is the surface area of the box?

Select one:

84

336

108

434

Answers

Answer:

Step-by-step explanation:

108

Answer:108

Step-by-step explanation:

my brain told me

Help me please and thank you :)

Answers

Answer:

 A. 74 cm

Step-by-step explanation:

First, we break the rhombus down into similar shapes,

The area of 2 triangles = The area of a square

So we take the triangle from the left and combine it with the triangle on the right, it should make a rectangle, Then calculate the area of the rectangle,

10 multiplied by 5 =50

Thats the area of rectangle 1

Rectangle 2

3 multiplied by 6 = 18

Triangle

4 times 3 divided by 2 = 6

Thus

6 + 18 + 50  = 74

PLEASE GIVE BRAINLIEST AND 5 STARS.

The answer would be A

Help please show work

Answers

Answer:

C. 56.25π

Step-by-step explanation:

Circumference=15π=πd⇒d=15

Area=πr^2⇒r=d/2⇒r=7.5⇒π7.5^2=56.25π

How do you solve this?

Answers

I think it’s C because the base is 180 degrees so C would be the best response
The answer is 148 the straight line will always be 180 and if you subtract 32 from 180 you get 148

HELP ME!!! I WILL GIVE BRAINIEST!!

Answers

Answer:

the coordinates are 5,-5

sorry if this doesn't help

When it says square 5, does that mean 5^2 or does it mean [tex]\sqrt{5}[/tex]

Answers

it means the 2nd one .. i cant put that symbol but it is the second one you put

Answer:

what i mostly understand by square 5 is [tex]\sqrt{5}[/tex] because 5^2 would be 5 squared.

During an annual end-of-year performance review, a team of realtors reported the number of homes sold that year. The histogram shows those sales results. Which of the following statements are true about the home sales data set represented by this histogram? Select all that apply.

Answers

Answer:

There were 7 realtors who sold at least 40 homes

40 POINTS PLZ HURRY
ITEM BANK: Move to Bottom 2,5002,5003,0003,00032,50032,50035,000 Consider the data shown on the graph.
• The y-intercept represents a starting salary of $ ? for a new employee. • The slope represents an additional $ ? in salary for each additional year of employment. • If the starting salary for a new employee is changed to $35,000 and the yearly salary increase is unchanged, the new equation would be y = ? x + ? . • If the yearly salary increase is changed to $ ? , the new equation would be y = ? x + ? .

Answers

Answer:

Can you show the graph please?

Step-by-step explanation:

Answer:

300

Step-by-step explanation:

If the yearly salary increase is changed to $ ? , the new equation would be y = ? x + ?.

Let $e for new empolyee.

Let $s for slope for salary.

We know if the starting salary for a new employee is changed to $35,000 and the yearly salary increase is unchanged, the new equation would be y = ?

y = ? the question mark will represent x.

Because $35,000 is the only number, that will be our main goal.

So $35 in shorten, added 25, 20. Which is 45.

With that we do +200 - 45. 155.

So 45+255=300

Answer: 300

Done ✔

Pls help will give brainliest

Answers

Answer: 5, -6

5= x -6= y

X:5, Y:-6
Answer: 5 and -6.

Correct the error. Perimeter =4+3+4+5+ = in.


WILL GIVE BRAINLIEST

Answers

Answer: You are missing a 4.

Step-by-step explanation: If you said the answer is 20, 4 is missing. We can add up the follow equation before putting 4.

(4 + 3) + (4 + 5)

   7     +    9 = 16 + 4 = 20.

Hence, 20 is your answer.

I’m pretty sure the mistake is here you are missing 4

In ∆DEF, if m∠D is 14 less than m∠F and m∠E is 10 more than twice m∠F, find the measures of each angle.

Answers

Step-by-step explanation:

pag plasin mo kung anong angel ang present para ma kuha mo yung wla

d=f-14, e=2f+10
f-14+f+2f+10=180
4f-4=180
f-1=46
f=46, d=32, e=102

The relationship between the cost, , in dollars, of a bottle of Spring Fresh water and the ounces of water, , in a bottle of Spring Fresh water can be modeled by a proportional equation. y

Answers

Answer:

Step-by-step explanation:

PLEASE HELP ME, I WILL THE CORRECT AWnSER BRAILIEST

Answers

Answer:

yup true

Step-by-step explanation:

it can be anything like parallogram, square , rhombus, rectangle etc..

mark me as brainlist

Answer: Its true

https://mathbitsnotebook.com/Geometry/Quadrilaterals/QDParallelograms.html

Please answer number 17 and you will get brainliest

Answers

Answer:

Since the shape was formerly a square,ofarea 100in²

Then,Area of square=side×side

100in²=side²

side=√100in²

side=10 inches

Perimeter of the shape=10+10+7+6+5

=38inches

Now a length of 3inches is cut off from the upper horizontal side and a length of 4in is also cut off from the right vertical side.

So now we can say a triangle of base 4in and height 3in is cut off from the square.

Area of cut off triangle=½base×height

=½×4×3=0.5×12

=6 inches ²

So the Area of the shape=Area of square-Area of triangle

=100-6=94inches²

PLEASE GIVE BRAINLIEST

pls answer for free 3 brainliests

Answers

Answer:

Step-by-step explanation:

735$

$735 hope this helps

Jennifer's group was trying to build the tallest straw tower in the classroom. Each person in her group connected various lengths:

Jennifer: 16 cm, Harry: 20 cm, Brendan: 5 cm and Taylor: 52 cm.

Sort the number sentences that will tell you how tall their tower was.

Answers

93cm. I could be wrong tho. Hope this helps
93m I could be wrong too

Pls help me ITS DUE TOMORROW
TROLL FOR POINTS= REPORT

CORRECT ANSWER= BRAINLIEST

( NO LINKS )

Answers

g is less than 75

g=12

75-63= 12

Hope this helps!

Answer:  g < 2

Step-by-step explanation:

anything larger than two and it at or be over 75$.

Please help me hurry

Answers

Answer:

The last one I believe

Step-by-step explanation:

If I am wrong I am sorry

Answer:

I think it’s the 3rd one

Step-by-step explanation:

It’s linear because it’s going in a straight line and it’s neither positive nor negative because the x axis is not changing

In hopes of encouraging healthier snacks at school, Bert brought in a tray of carrot sticks and apple slices to share. He brought 80 carrot sticks and 20 apple slices. What percentage of the snacks were carrot sticks?

Answers

Answer:

80%

Step-by-step explanation:

80/100, 20/100

therefore 80% of the snacks are carrot sticks

Answer: 80%

Step-by-step explanation:

Help me plz I’ll give brainliest

Answers

Answer:

It is the top left one

Step-by-step explanation:

Help please I’ll give brainliest

Answers

Answer:

9:1

Step-by-step explanation:

The Answer is D. 9:1

plz help will mark brainliest if correct answer only ​

Answers

Answer:

A

Step-by-step explanation:

I added all frequencies and it equals 50. The frequency for 1 is 8 so the answer would be 8/50. Simplify it and it equals to 4/25.

The perimeter of a rectangle is 86. The length of the rectangle is one more than twice the width. Determine the length and width of the rectangle.

Answers

There are two equation of the system

(1) The perimeter

    2(w + l) = p

    2(w + l) = 86

(2) The length and the width

     2w = l + 2

From the second equation

2w = l + 2

l + 2 = 2w

l = 2w - 2

Subtitute l with 2w - 2 in the first equation to find the width

2(w + l) = 86

2(w + 2w - 2) = 86

2(3w - 2) = 86

6w - 4 = 86

6w = 90

w = 15

Now, find the length by subtituting w with 15

l = 2w - 2

l = 2(15) - 2

l = 30 - 2

l = 28

The dimension of the rectangle

length = 28 cm

width = 15 cm

Fine two integers that have a sum of -17 and a product of 52. What are the integers?

Answers

Answer:

{4, 13}

Step-by-step explanation:

Represent the integers by I and J.  Then I + J = -17 and I*J = 52.

Let's solve this system using substitution.  Solve the first equation for I as follows:  

I + J = -17 becomes I = -J - 17

Substitute -J -17 for   I   in the second equation:

(-J - 17)*J = 52

Performing the indicated multiplication, we get:

-J^2 - 17J - 52 = 0

Let's solve this using the quadratic formula.  The quadratic coefficients here are {-1, -17, -52}, and so the discriminant, b^2 - 4ac, is

(-17)^2 - 4(-1)(-52), or 289 - 208, or 81.  This result is positive, so we know that the quadratic equation has two real, unequal roots.  They are:

      17 ± √81         17 ± 9

J =  --------------- = ---------------

         2(-1)                  -2

Evaluating this last result, we get J = (17 + 9)/2, or J = 13, and

J = (17 - 9)/2 = 8/2, or J = 4

Given the net below calculate the surface area. The sides measure 6 by 4, the top and bottom measure 8 by 6 and the front and back are 8 by 4.

Answers

Answer:

152

Step-by-step explanation:

So first I find the area of the big rectangle going down, which is 14x8=112

And then I do the flap thingies on the side: 5x4=20x2=40

112+40=152

Answer:

152

Step-by-step explanation:

Please give me brainliest, please, I hope this helps

here is 1-12 of the assignment

Answers

1. 5m-6 m=7
5(7)-6
35-6
Answer: 29

2. 4m+t (t=2) (m=7)
4(7)+2
28+2
Answer: 30

3. r/t (r=8) (6=2)
8/2
Answer: 4

4. m*t (m=7) (t=2)
7*2
Answer: 14

5. 5t+2m
5(2)+2(7)
10+2(7)
10+14
Answer: 24

6. r*m
8*7
Answer: 56

7. 3m-5t
3(7)-5(2)
21-10
Answer: 11

8. m*r/t
7(8)/2
56/2
Answer: 28

10. n+16
The sum of a number n and 16.
11. 3.2n
The product of 3.2 and a number n.
12. 25.6-n

I know I already send this all to you, but if anyone else needs help here’s the answers.
Just read this guys ^
|

A pair of sneakers that cost $90 last year has now been marked up 25%. Mariel has a coupon that is going to take 10% off the price of the shoes. Is the price that she will pay equivalent to a 15% markup of the original cost of the shoes? Show your work.

Answers

Answer:

Your answer is no.

Step-by-step explanation:

The answer is no because when using the coupon she's only getting 10% off of the price AFTER 25% is added.

10% off of the original price is: $81.00

10% off of the new price is: $101.25

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

Answers

Answer:

A

Step-by-step explanation:

I think that it's luster tell me if i am right :)

please help me out i don't understand this question thanks!

Answers

Answer:

try using radius i think

Step-by-step explanation:

Answer:

Use radius

Step-by-step explanation:My teacher says so

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