The base of a 15-ft ladder is 5 ft away from a wall. How high from the floor is the top of the ladder?

Answers

Answer 1
Answer:
Distance from the top of the ladder to the floor = 14.14 ft

Explanation:
The ladder forms a right-angled triangle with the floor and the wall where:
The ladder is the hypotenuse = 15 ft
The distance between the ladder and the wall is the base = 5 ft
We will use the Pythagorean theorem to get the third side of the triangle which represents the distance between the top of the ladder and the floor as follows:
15^2 = 5^2 + distance^2
Distance^2 = 225-25 = 200
Distance from the top of the ladder to the floor = sqrt(200) = 14.14 ft

Hope this helps :)

Related Questions

If a dozen eggs cost $1.35, what is the unit cost?

Answers

total eggs=12
dozen eggs cost =1.35 dollars
one egg =12/1.35
=0.11 dollars

Ivan has 8 marbles. Each marble weighs 1/3 ounce. What is the total weight of the marbles in ounces?

Answers

1/3 x 8
= 8/3

the answer is 8/3 ounces
Hey there! :D

If each marble is 1/3 of an ounce:

8/1*1/3= 8/3

Or, we could say 8*1= 8 Tyen our that over 3.

8/3= 2 2/3 ounces

I hope this helps!
~kaikers

Assume that after t hours on the job, a factory worker can produce 100te^-.5t units per hour. How many units does the worker produce during the first three hours?

Answers

The number of units produced by the worker during t hours of work can be modelled by the following function:

[tex]N(t)=100t e^{(-0.5t)} [/tex]

To find the number of units produced during first 3 hours, we can substitute 3 for t. This will give us the number of units produced by the worker during first 3 hours.

[tex]N(3)=100(3) e^{-0.5(3)} = 67[/tex]

Thus the worker will produce 67 units during the first 3 hours of the work. 

Final answer:

To find the number of units that the worker produces during the first three hours, we need to calculate the integral of the production function from 0 to 3. The production function is given as 100te^-0.5t. Using the power rule and the exponential rule of integration, we can find that the worker produces approximately -300e^-1.5 units during the first three hours on the job.

Explanation:

To find the number of units that the worker produces during the first three hours, we need to calculate the integral of the production function from 0 to 3.
The production function is given as 100te^-0.5t.
To integrate this function, we can use the power rule and the exponential rule of integration.

First, let's apply the power rule. The integral of t^n is (t^(n+1))/(n+1).In this case, we have t*e^-0.5t. So, applying the power rule, we get (t^(1+1))/(1+1) = (t^2)/2.Next, we apply the exponential rule. The integral of e^at is (1/a)e^at.Here, we have e^-0.5t. So, applying the exponential rule, we get (1/(-0.5))e^-0.5t = -2e^-0.5t.Now, let's combine the two results. The integral of 100te^-0.5t can be written as 100 * ((t^2)/2) * (-2e^-0.5t).Simplifying, we get -100te^-0.5t.

Now, we can plug in the values from 0 to 3 in the integral and calculate the result.

First, plug in the value t=3 in the integral: -100(3)e^-0.5(3) = -300e^-1.5.Then, plug in the value t=0 in the integral: -100(0)e^-0.5(0) = 0.Finally, subtract the result from step 2 from the result from step 1: -300e^-1.5 - 0 = -300e^-1.5.

Therefore, the worker produces approximately -300e^-1.5 units during the first three hours on the job.

1.At a video arcade , Jenny buys 25 tokens.She uses two tokens for each game She plays.
a ) Write an expression for the number of tokens Jenny left after playing g games.
b) Find the number of tokens Jenny has left after playing 1,4,6,10 and 12 games.

Answers

a) 25-2g
b) 25-2(1)=23
25-2(4)=17
25-2(6)=13
25-2(10)=5
25-2(12)=1

Answer:

The required expression is [tex]25-2g[/tex]

She left with 23 tokens after playing 1 game.

She left with 17 tokens after playing 4 game.

She left with 13 tokens after playing 6 game.

She left with 5 tokens after playing 10 game.

She left with 1 tokens after playing 12 game.

Step-by-step explanation:

Consider the provide information.

Part (A)

At a video arcade, Jenny buys 25 tokens. She uses two tokens for each game She plays.

Let the number of games she plays represented by g.

For each game she need to use 2 tokens.

Thus for g games she will use 2g tokens.

Thus, the required expression is: [tex]25-2g[/tex]

Part (B) Find the number of tokens Jenny has left after playing 1,4,6,10 and 12 games.

The number of tokens Jenny has left after playing 1, is:

[tex]25-2(1)[/tex]

[tex]25-2[/tex]

[tex]23[/tex]

Hence, she left with 23 tokens after playing 1 game.

The number of tokens Jenny has left after playing 4, is:

[tex]25-2(4)[/tex]

[tex]25-8[/tex]

[tex]17[/tex]

Hence, she left with 17 tokens after playing 4 game.

The number of tokens Jenny has left after playing 6, is:

[tex]25-2(6)[/tex]

[tex]25-12[/tex]

[tex]13[/tex]

Hence, she left with 13 tokens after playing 6 game.

The number of tokens Jenny has left after playing 10, is:

[tex]25-2(10)[/tex]

[tex]25-20[/tex]

[tex]5[/tex]

Hence, she left with 5 tokens after playing 10 game.

The number of tokens Jenny has left after playing 12, is:

[tex]25-2(12)[/tex]

[tex]25-24[/tex]

[tex]1[/tex]

Hence, she left with 1 tokens after playing 12 game.

Manuel has 13 granola bars to split among 5 people. Express the number of granola bars that each person receives as a quotient and remainder.

Answers

2 r 3
--------
5/ 13
-10
------
3

The length of a rectangle is 5 m greater than the width. The perimeter is 150 m. Find the width and length.

Answers

Hola Friend ✋✋✋

Let the length of rectangle be l

breadth be b

so ,

b+5 = l

perimeter = 2 × ( l+b) = 150

2b + 5 = 75

b = 35

so l = 40
It's 40 :) I hope this helped (:

What does this mean I don’t quite get it.

Answers

The circumference of a circle is the length of the line making the circle.

To find circumference, the formula is

[tex]2\pi \times r[/tex]
So, the answer to this problem would be 31.42

resolva a seguinte equaçao -8x-13 = 3 por favor preciso da conta

Answers

Hello,

Here is your answer:

The proper answer to this question is "x-=2".

-8x-13=3

Add 13 both sides:

13+3=16

Divide 8 on both sides:

16/8=2

X=2!

If you need anymore help feel free to ask me!

Hope this helps!

There are (53)2 ⋅ 50 hens in a bird enclosure. What is the total number of hens in the enclosure?

a) 0
b) 55
c) 56
d) 530

Answers

I got 5,300. I’m not sure if that’s what you meant for “d”.

Answer:

c) [tex]5^{6}[/tex]

Step-by-step explanation:

We have been given that there are [tex](5^3)^2\cdot 5^0[/tex] hens in a bird enclosure. We are asked to find the total number of hens in the enclosure.

Using exponent property [tex]a^0=1[/tex], we will get:

[tex](5^3)^2\cdot 1[/tex]

[tex](5^3)^2[/tex]

Using exponent property [tex](a^b)^c=a^{b\cdot c}[/tex], we will get:

[tex]5^{3\cdot 2}[/tex]

[tex]5^{6}[/tex]

Therefore, there are total number of hens in the enclosure would be [tex]5^{6}[/tex].

Which equation does the graph represent?

A) y = 2x
B) y = 1/2x
C) y = 1/2 + x
D) y = 2 + x

Answers

It is B because the equation for slope is x/y and when x=1 y=2 so it is 1/2
slope = ½
y-int = 0

The graph represents equation y = ½x.

The correct answer is B. y = ½x.



The yearbook staff enlarges a picture with a length of 5 inches and a width of 7
inches by a scale factor of 3. The staff decides the enlarged picture is too large and reduces it by a scale factor of 0.5. Will the final image of the picture fit in an area of 80 square inches?


No, the area of the picture is 315 square inches.


Yes, the area of the picture is 35 square inches.


No, the area of the picture is 157.5 square inches.


Yes, the area of the picture is 78.75 square inches.



Answers

i believe yes, the area of the picture is 78.75 square inches. hope this helps you

present dimensions = 5*7

dimensions after scaling with factor 3 = 15*21

dimensions after reducing by scale factor 0.5 = 7.5*10.5

area of rectangle = length * breadth

so area of yearbook = 7.5*10.5 = 78.75

because, 78.75<80

so, the yearbook will fit in area of 80 inches^2

In Art class, Mr. Jocelyn gave everyone a1 foot stick to measure and cut. Vivian measured and cut her stick into 5 equal pieces. Scott measured and cut his into 7 equal pieces. Scott said to Vivian, "the total length of my stick is longer than yours because I have 7 pieces, and you only have 5" is that correct?

Answers

No. The more you cut, the less the one-piece length is. The pieces that Vivian has is less than Scott.

However, they all got a 1-foot stick. So, if you add them up you have an equal length.

Scott is incorrect thinking his stick is longer; both received identical 1 foot sticks, so total lengths remain the same despite the number of pieces they are cut into.

The student's question involves Scott believing that because he has more pieces, the total length of his stick is longer than Vivian's. Scott and Vivian both received a 1 foot stick and divided it into equal pieces; Scott into 7 pieces and Vivian into 5.

This problem is related to the concept of division where each person divides their total length equally among the number of pieces, which means the length of each individual piece changes, but the total length of the stick remains the same. Scott is not correct; the total lengths of their sticks are identical, each being 1 foot in length before cutting, regardless of the number of pieces they've been cut into.

PLEASE HELP WILL GIVE BRAINLIEST AND 20 POINTS

1 cubic foot of sand weighs 100 pounds. A square sandbox with 5-foot side has half of a foot of sand in it. How many pounds of sand is the sandbox holding?

Answers

1250 lbs of sand.

So first let's find the volume of the sand in the sandbox. You have a square sandbox, with a side length of 5, meaning you have a length and width of 5. You also have half a foot of sand in the sandbox, meaning that you have a height of 0.5. To find the volume of the sand, multiply the length by the width by the height:

[tex]5 * 5 * .5 = 12.5[/tex]

So you have 12.5 cubic feet of sand. If each cubic foot of sand is 100 lbs, then you just multiply the two:

[tex]12.5 * 100 = 1250.0 [/tex]

how many athletes exercised more than 40 but less than 60 minutes

Answers

4.  When reading the stem and leaf plot the only values that fall between the range of  40 < x <60  is the 4 values of 45.  They are located at the tail end of the 4 stem after the zeros. The 40s and 60s are not counted because it is not mentioned equal to 40 or 60.

The correct answer is:

4.

Explanation:

The number 40 is written in this stem-and-leaf plot as 4|0.  60 is written as 6|0.  There are 4 leaves between these numbers; 5, 5, 5 and 5, with the stem of 4.  This means the numbers are 45, 45, 45 and 45.  There are only 4 between these two numbers.

Which is the best estimate for the length of a park bench?

Answers

About 6 ft..............................

Name the like terms in the expression 5a + 8 – 3a + 11.

Answers

The like terms are 5a and -3a. Also, 8 and 11 are like terms

8 and 11 are like terms because they both are constants and don't have a variable.
5a and 3a are like terms because they both have the variable a in common. 
you would combine these like terms
5a + 8 - 3a + 11
(5a - 3a) + (8 + 11)
2a + 19

Hope this helps :)
The like terms in this are

5a
3a

Number 5 and a. b. 6. a. b. is difficult who can help me?

Answers

Hi there! I can help you!

5a. Okay. So $90 were paid for the two tickets, that's $45 per ticket. 452.50 was the amount per ticket. First, let's subtract 45 from 52.50. 52.50 - 45 is 7.5. That's $15 for two tickets, and $7.50 of a markdown per ticket.

5b. For this all we have to do is divide the difference by the original price. Let's do the cost per ticket. There is a difference of 7.5. The original price was $52.5. 7.5/52.5 is 0.142857 and other numbers behind it, or 14% when converted to percent and rounded to the nearest whole number. You can divde the difference for two tickets by the original price for two tickets and get the same answer. There. The percent markdown is approx.14%.

For this part, in order to find the sale price, what we have to do is subtract the markdown from 100%, and then multiply the remainder by the original price. This is because while you do get a discount, you still have to pay a portion of the original price.

6a. The discount is 35%. That means you pay 65% of the original amount, because 100 - 35 is 65. Let's multiply. 4,200 * 65% (0.65) is 2,730. There. The sales price is $2,730.

6b. The discount is 44%, 100 - 44 is 56. So 56% of the original price is paid. Once again, multiply the percent and the original price together. 5,000 * 56% (0.56) is 2,800. There. The sale price is $2,800.

graph the linear equation find three points that solve the equation then plot on the graph -3y=2x-7

Answers


[tex] - 3y = 2x - 7 \\ y = - \frac{2}{3} x - \frac{7}{3} [/tex]
[tex] \binom{1}{2} \: \: \: \: \: \: \binom{5}{ - 1} \: \: \: \: \: \: \binom{8}{ - 3} [/tex]
this is the line

This system of equations represents Reese’s pocket change. Let n represent the number of nickels and d represent the number of dimes Reese has in his pocket. n + d = 11 5n + 10d = 70 How many dimes are in Reese’s pocket?

Answers

Answer: 3 dimes

Step-by-step explanation:

Let n represent the number of nickels and d represent the number of dimes Reese has in his pocket.

Given system : [tex]n+d=11........(1)\\5n+10d=70............................(2)[/tex]

Divide equation (2) by 3 on both sides, we get

[tex]n+2d=14................................(3)[/tex]

Subtract equation (1) from (3), we get

[tex]d=3[/tex]

Hence, there are 3 dimes in Reese's pocket.

Answer:

3 dimes are in Reese's pocket.

Step-by-step explanation:

Here, n represent the number of nickels and  d represent the number of dimes.

Given the system of equations:

[tex]n+d = 11[/tex]           .....[1]

[tex]5n+10d = 70[/tex]             .....[2]

Multiply both sides by 5 in [1] we have;

[tex]5n+5d=55[/tex]             .....[3]

Subtract equation [3] from [2] we have;

[tex]5d = 15[/tex]

Divide both sides by 5 we have;

d = 3

Therefore, 3 dimes are in Reese's pocket.

Please help show work

Answers

You want the total volume of a cuboid 1" × 10" × 38" and a cylinder 1" in diameter by 12" long.

Volume of a cuboid:
.. V = l*w*h
.. = (38")*(10")*(1")
.. = 380 in³

Volume of a cylinder:
.. V = (π/4)*d²*h
.. = (3.14/4)*(1")²*(12")
.. = 9.42 in³

Total volume = Volume of cuboid + Volume of cylinder
.. = 380 in³ +9.42 in³
.. = 389.42 in³

The volume of the coat rack is approximately 389.42 in³.

Please anyone help me simplify the answer

Answers

I believe its A)1/2 hour because 9+3=12 is closer to 1/2 and hour than the other choices.

A=1/2 (b+B)h. Find the area of a trapezoid whose height is 6m, small base is 12 m, and large base us 18 m

Answers

Formula for area of trapezoid:
A= 1/2 (b+B)/h
Put values
A=1/2 (12+18)6
A=6/2(30)
A=3(30)
A=90 m²


Answer: 90 m²

Gloria placed 2 apples into each of 14 boxes. Let a represent the total number of apples she had. which represents this situation?

Answers

the answer to this math problem is the letter A

Does 4.5, 6, 7.5 form a right triangle

Answers

If these sides formed a right triangle, then a^2 + b^2 = c^2 would be true

a & b are the two legs
c is the hypotenuse (longest side)

a = 4.5
b = 6
c = 7.5

Plug those values into the pythaogrean theorem and let's see if we get a true equation or not

a^2 + b^2 = c^2
4.5^2 + 6^2 = 7.5^2
20.25 + 36 = 56.25
56.25 = 56.25 .... true equation

Since we get a true equation, this means the original equation is true for the given a,b,c values. So we do have a right triangle. 

Final answer:

The numbers 4.5, 6, and 7.5 can form the sides of a right triangle as their squared lengths satisfy the Pythagorean theorem where 4.5² + 6² equals 7.5².

Explanation:

To determine whether the numbers 4.5, 6, 7.5 can form the sides of a right triangle, we can apply the Pythagorean theorem.

This theorem states that in a right triangle, the square of the length of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the lengths of the other two sides.

According to the given numbers, if we assume that 7.5 is the length of the hypotenuse, then:

4.5² + 6² should equal 7.5²

Calculating each term gives us:

4.5² = 20.256² = 367.5² = 56.25

Adding the squares of the possible legs:

20.25 + 36 = 56.25, which is indeed the square of the hypotenuse. This confirms that 4.5, 6, and 7.5 can indeed form a right triangle.

Tell how you know when you need to use renaming when subtracting mixed numbers

Answers

Mixed Numbers to Fractions uses number line models to demonstrate how a number in mixed form can be renamed in fraction form. The illustration below was made by Mixed to Fraction Designer. ... Some textbooks call a fraction such as this improper, where the numerator is equal to or larger than.

Step 1: Keep the denominator the same. Step 2: Add or subtract the numerators. ...Step 1: Find the Lowest Common Multiple (LCM) between the denominators. ...Step 1: Convert all mixed numbers into improper fractions. ...In this second method, we will break the mixed number into wholes and parts. ...Thus, is equivalent to.

 


A rectangular park has an area of 64 square yards. If we multiply its length and width by 12, what will be the area of the new rectangle?

Answers

Answer:

9216 see explanation

Step-by-step explanation:

area of a rectangle =l×b

let the area and the breadth of the rectangle be x an y respectively

Now

x×y=64cm^2

as we have to multiply the length and breadth both by 12 the new area will be x×y=64×12×12 so the new area would be 9216

Answer:

[tex]\displaystyle 9126\:yd.^2[/tex]

Step-by-step explanation:

Explanation:

[tex]\displaystyle wl = A[/tex]

First, let us list the factours of 64:

[tex]\displaystyle 1, 2, 4, 8, 16, 32, 64[/tex]

Any two factours of 64 would do [two eights would wourk of cource, but the park is not square-shaped]:

[tex]\displaystyle 9126 = [2(12)][32(12)] \\ 9126 = [4(12)][16(12)][/tex]

Either way, you still get the same result. By the way, NO court will ever be one yard, so I never included it, but again, you get the overall idea.

I am joyous to assist you at any time.

Derrick lives 3 miles from the park. He rode his bicycle to the park at an average speed of 9 miles per hour. How many minutes did it take Derrick to ride his bicycle to the park?

Answers

Hey there!

Since we don't know how many hours it took, we'll say 9 mph = 3 miles/x hours. To solve, we multiply both sides by x. 9x = 3 Dividing both sides by 9, we get that it took 3/9 hours or 1/3 hours. How many minutes are 1/3 hours? 20, so it took Derrick 20 minutes. Hope this helps! :)

Hugs! 
- Nicole

Three times the larger of two numbers is equal to four times the smaller. The sum of the numbers is 21. Find the numbers.

Answers

x= smaller number
y= larger number

We will have two equations to work with so we can solve for the variables.

EQUATION 1:
3 * y= 4 * x
3y= 4x
subtract both sides by 3y
0= 4x - 3y

EQUATION 2:
21= x + y

SOLVE:
solve for one variable in equation 2
21= x + y
subtract both sides by y
21-y= x

Substitute x= 21-y in equation 1:

0= 4x - 3y
0= 4(21-y) - 3y
0= (4*21) + (4*-y) - 3y
0= 84 - 4y - 3y
0= 84 - 7y
add 7y to both sides
7y= 84
divide both sides by 7
y= 12

Substitute y=12 in either equation to solve for x:

21= x + y
21= x + 12
subtract both sides by 12
9= x

CHECK:
0= 4x - 3y
0= 4(9) - 3(12)
0= 36 - 36
0= 0

ANSWER: x=9 and y=12

Hope this helps! :)




which measurement is closest to the volume of the cone in cubic inches . the height is 7.5 & the radius is 5.62 . show work please ?

Answers

Final answer:

The volume of the cone with a height of 7.5 inches and a radius of 5.62 inches is calculated using the formula V = (1/3)πr²h and is approximately 589.05 cubic inches.

Explanation:

To find the volume of a cone with a height of 7.5 inches and a radius of 5.62 inches, you use the formula for the volume of a cone, which is V = (1/3)πr²h. Here, r represents the radius and h represents the height of the cone.

First, calculate the area of the base (A) which is π times the radius squared:

A = π × (5.62 in)²

This gives us the area of the base. Then, multiply by the height (7.5 inches) and divide by 3 to find the volume:

V = (1/3) × A × h = (1/3) × π × (5.62 in)² × 7.5 in

Now, plug in the value for π (approximately 3.14159) and calculate:

V ≈ (1/3) × 3.14159 × (5.62²) × 7.5

V ≈ 589.05 cubic inches (rounded to two decimal places).

Therefore, the volume of the cone is approximately 589.05 cubic inches.

X=
A.100
B.120
C.140

Answers

x=140 because of the exterior secant angle theorem
10° is half the difference of the intercepted arcs, so you have
.. 10 = (30 -(150 -x))/2
.. 20 = x -120
.. 140 = x

The 3rd selection is appropriate.
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