Please help, Will give brainliest
Firefighters used a ladder 50 feet high to reach a window that was 30 feet above the ground. From the same point on the ground, the ladder is turned to across the street to reach a window that was 40 feet high.
Select all the true statements.
The width of the street, BM, is 70 feet.
The ground distance of the ladder from building B is 30 feet.
The ground distance of the ladder from building M is 30 feet.
The width of the street, BM, is 122 feet.
The length KL is 50 feet.
Answers
Answer:
First since 2 of the options ask for the width of BM lets solve for it using the Pythagorean theorem for both sides of point L:
a² + b² = c²
30² + b² = 50²
b² = 50² - 30²
b² = 1600
b = 40 Line BL = 40 ft
Since the ladder is 50 feet it is the same length on the other side as well
a² + b² = c²
40² + b² = 50²
b² = 50² - 40²
b² = 900
b = 30 line LM is 30 ft
SO line lm + line bl = 30 + 40 = 70 ft
A is true because ^
B isn't true because as we solved for earlier, BL is 40
C is true because line LM is in fact 30 ft as we solved for
D is not true because as we said earlier BM is 70
E is true because the same ladder was used on both sides of the street
Step-by-step explanation:
The width of the street, BM, is 70 feet. The ground distance of the ladder from building M is 30 feet. The length of KL is 50 feet.
What is Pythagoras's theorem?Pythagoras's theorem states that in a right-angled triangle, the square of one side is equal to the sum of the squares of the other two sides.
First, because two of the possibilities require the width of BM, let us solve for it using the Pythagorean theorem for both sides of point L.:
a² + b² = c²
30² + b² = 50²
b² = 50² - 30²
b² = 1600
b = 40
So, Line BL = 40 ft
So because the ladder is 50 feet long, it is also the same length on the other side.
a² + b² = c²
40² + b² = 50²
b² = 50² - 40²
b² = 900
b = 30
So, line LM is 30 ft
So line lm + line bl = 30 + 40 = 70 ft
Hence, the true statements are options (A), (C), and (E).
Learn more about Pythagoras's theorem here:
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Related Questions
The formula for the gravitational potential energy of an object is U = mgh, where U represents the potential energy, m represents the mass of the object, g represents the acceleration due to gravity, and h represents the object’s height above the ground. Solve this formula for h.
Answers
U=mgh
U/m=gh
U/mg=h
therefore:
h=U/mg
The solution for h is h = U / (mg),
where U represents the potential energy, m represents the mass of the object, and g represents the acceleration due to gravity.
Here, we have,
To solve the formula U = mgh for h (the height above the ground),
we need to isolate h on one side of the equation.
Here are the steps:
Start by dividing both sides of the equation by mg:
U / (mg) = (mgh) / (mg)
This simplifies to:
U / (mg) = h
Now we have isolated h on one side of the equation.
Therefore, the formula for h is:
h = U / (mg)
So, the solution for h is h = U / (mg),
where U represents the potential energy, m represents the mass of the object, and g represents the acceleration due to gravity.
To learn more on equation click:
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Kathy has a job on a farm.
. She earns $3.20 every 15 minutes she picks
green peppers.
. She earns $3.00 every 20 minutes she picks
carrots.
She picked green peppers for 45 minutes and
then spent an hour picking carrots.
How much money did Kathy earned? (write
your answer in dollars. cents)
Answers
She picked peppers for 45 minutes and earned 3.20 every 15 so 3.20 * 3 is 9.60 then picked carrots for 60 minutes and earned 3 every 20 so 3*3 is 9 add them together it’s 18.60
The ordered pairs (8,12). (16, 24), (x, 21), (26, y) represent a proportional relationship
Find the value of x and the value of y.
Select the two correct answers.
A y=56
B. x= 14
C. x=7
D. y=39
Ex= 9
F. y = 42
Answers
Answer: B. x= 14
D. y=39
Step-by-step explanation:
First and foremost, we need to calculate the constant of proportionality. This will be:
(8,12).
y = kx.
12 = 8k
k = 12/8
k = 1.5
(16, 24),
y = kx
24 = 16k
k = 24/16
k = 1.5
(x, 21),
y = kx
x = y/k
x = 21/1.5
x = 14
(26, y)
y = kx
y = 26 × 1.5
y = 39
I have a graph the line problem that I don't know how to do It says I have to graph at least three points y=-1/4x+3
Answers
Answer:
Hope this helps!!
Step-by-step explanation:
What one transformation maps ABC to A''B''C''?
Answers
Answer: i dont know all i want is the points
help me solve the question
Answers
Answer:
25
Step-by-step explanation:
[tex]\sqrt{15^{2} +20^{2} }=\sqrt{625} \\ =25[/tex]
What is the positive solution to 2x^2 - 4x - 30 = 0?
Answers
Answer:
x=-3 or x=5
Step-by-step explanation:
caulute 1.6 times 0.215
20 POINTS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answers
Answer:
1.6 * 0.215 = .344
Step-by-step explanation:
Here's some screenshots providing the explanation:
is today harry styles' birthday?
Answers
Answer:
yes
Step-by-step explanation:
In rhombus CATS, CA= 6x-30. AT= 2x+30 find the perimeter? I need help ASAP PLEASE
Answers
Length of CA = 6x - 30
Length of AT = 2x + 30
We know that all sides of a rhombus are congruent.
Which means :
[tex] = 6x - 30 = 2x + 30[/tex]
[tex] = 6x - 30 - 2x = 30[/tex]
[tex] = 4x - 30 = 30[/tex]
[tex] = 4x = 30 + 30[/tex]
[tex] = 4x = 60[/tex]
[tex] = x = \frac{60}{4} [/tex]
[tex] = x = 15[/tex]
Thus, the value of x = 15
Then :
Measure of CA :
[tex] = 6x - 30[/tex]
[tex] = 6 \times 15 - 30[/tex]
[tex] = 90 - 30[/tex]
[tex] = 60[/tex]
Thus, measure of CA = 60
Measure of AT :
[tex] = 2x + 30[/tex]
[tex] = 2 \times 15 + 30[/tex]
[tex] = 30 + 30[/tex]
[tex] = 60[/tex]
Thus, measure of AT = 60
Perimefer of rhombus CAT :
[tex] = 4 \times side[/tex]
[tex] = 4 \times 60[/tex]
[tex] = \color{plum}240[/tex]
Therefore, the perimeter of rhombus CAT = 240
6. The desks at Ryder Middle School are shaped like a rectangle with an area of square inches. The length of the desk is inches. Write an expression to represent the width of the desk.
Answers
Answer:
x squared + x + 2
Step-by-step explanation:
no.
x + y = 2
2x+ 7y = 9
Answers
Answer:
x=1 y=1
Step-by-step explanation:
(x + y = 2)×2
2x+ 7y = 9
2x + 2y = 4
2x+ 7y = 9
-5y =-5
y= 1
2x+7(1)=9
2x=2
x=1
Tell whether each relationship is a function
Answers
Answer:
This is not a function
Step-by-step explanation:
There are multiple x coordinates so if you put this on a graph then try to do the vertical line test it will fail resulting in this not being a function.
To find the quotient of
8
1
3, multiply 8 by
-100
- اند
O
3.
ОО
8.
Answers
Answer: 3 hope this helped (:
What is the solution to the system of linear equations graphed below?
Answers
Answer:
Step-by-step explanation:
the last answer D
1
[125
-1
-1251
1
125
5-3
-5-3
(-5-3)-1
(-5-3)
Reset
Next
Answers
Answer:
1. 1
2. 1
3. -1/125
4. 1/125
The quotient of s and 5
Answers
Answer:
ead the excerpt from "The Most Dangerous Game,” by Richard Connell.
His foot touched the protruding bough that was the trigger. Even as he touched it, the general sensed his danger and leaped back with the agility of an ape. But he was not quite quick enough; the dead tree, delicately adjusted to rest on the cut living one, crashed down and struck the general a glancing blow on the shoulder as it fell; but for his alertness, he must have been smashed beneath it. He staggered, but he did not fall; nor did he drop his revolver. He stood there, rubbing his injured shoulder, and Rainsford, with fear again gripping his heart, heard the general's mocking laugh ring through the jungle.
Which analysis best explains the effect of adding the female character
Step-by-step explanation:
Answer:
s/5
Step-by-step explanation:
its s/5 because the letter is always on top and yea..
44 is 25% of what
pls help they gave me these without teaching them
Answers
Answer:
176
Step-by-step explanation:
In order to find these kinds of problems, you need to divide the given number by the percentage in its decimal form.
25% = 0.25
44/0.25 = 176
To check your work, simply take the answer and multiply it with the percentage.
176*0.25 = 44
Find the area of the shape shown below.
2
2
2
Answers
Hummingbirds have unusually large hearts for their body size. If a person's heart were as
big as a hummingbird's, his or her heart would weigh as much as a large dog.
Information you will need:
An average hummingbird weighs 0.3524 ounces and has a heart that weighs 0.00875
ounces.
1 pound = 16 ounces
The average weight of a large dog is usually more than 80 pounds.
Leo weighs 192 pounds.
a.) How much would Leo's heart weigh if it were the same ratio as a hummingbird's?
Show your work on your paper.
b.) is the original claim true or false? Justify your reasoning here along with your answer.
Answers
Answer: 4.8lbs, This claim is false
Step-by-step explanation:
Leo weighs 192 pounds. Then Leo's heart weight will be 76.258 ounces. So, its claim is false.
What are ratio and proportion?A ratio is a group of sequentially ordered numbers a and b expressed as a/b, where b is never equal to zero. When two objects are equal, a statement is said to be proportional.
Hummingbirds have abnormally huge hearts for their body size. In the event that an individual's heart was essentially as large as a hummingbird's, their heart would weigh as much as an enormous canine's. A typical hummingbird weighs 0.3524 ounces and has a heart that weighs 0.00875 ounces.
The ratio of heart to weight is given as,
Ratio = 0.00875 / 0.3524
Ratio = 0.024829
The average weight of a large dog is usually more than 80 pounds. Leo weighs 192 pounds. Then Leo's heart weight is calculated as,
⇒ 0.024829 x 192 x 16
⇒ 76.28 ounces
Their heart weight of Leo is less than the weight of the dog. So, its claim is false.
More about the ratio and the proportion link is given below.
https://brainly.com/question/14335762
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4. Hakim buys n kg of rice. Vanu buys 2 kg more rice than Hakim. Kevin buys
one-fifth of the amount of rice that Vanu buys.
(a) Find the total amount of rice that Hakim and Kevin buy altogether.
Answers
Hakim : n kg
Vanu : n+2 kg
Kevin : 1/5(n+2) kg
Hakim + Kevin : n + 1/5(n+2)
= n + (n+2)/5
= n/5n + n^2+2n/5n
= n+n^2+2n/5n
= 3n + n^2/5n
= 3+n/5
Which congruence theorems or postulate could be given as reason why CDE ~= OPQ
Answers
Answer:
are congruent by ASA property
Step-by-step explanation:
AND TELL ME YOUR CLASS
Answer:
HA ASA AAS
Step-by-step explanation:
help please will give brainliest PLEASE
I accidentally chose that
Answers
Answer:
I think its the third one but i might be wrong
Step-by-step explanation:
The domain of a quadratic is all real numbers.
a) True
b) False
Answers
The domain of a quadratic function in standard form is always all real numbers, meaning you can substitute any real number for x. The range of a function is the set of all real values of y that you can get by plugging real numbers into x.
Answer:
Step-by-step explanation:
I'd be very hesitant to say true.
If the quadratic is in the form of y = x^2 then the statement is correct. The entire family all have a domain of all the real numbers.
However if the quadratic is of the form x=y^2 then the starting point of this quadratic is (0,0). All of these quadratics have a different starting point. \\
Since you have not specified the kind of quadratic, the answer is not always true.
Water
SA = 2tr2 + 2nrh
(Use 3.14 for 1.)
Find the surface area
of a water tower that is
40 feet tall and 20 feet
across the base.
square feet
Do NOT round your answer.
Answers
Answer:
the surface area is 3140 square feet
Step-by-step explanation:
The computation of the surface area is given below:
Given that
Diameter = 20 feet
radius = 20 ÷ 2 = 10 feet
Surface area = [tex]2\pi r^2 + 2\pi rh[/tex]
= 2 × 3.14 × (10)^2 + 2 × 3.14 × 10 × 40
= 6.28 × 100 + 6.28 × 400
= 628 + 25.12 × 100
= 628+ 2512
= 3140 square feet
hence, the surface area is 3140 square feet
if 10% of a group of children are girls, what is the ratio of girls to boys
Answers
Answer:
9 boys to 1 girl
Step-by-step explanation:
when the day after Tomorrow become yesterday then today will be as far as Sunday as the day it was today when the day before yesterday was Tomorrow which day is it Monday Tuesday Wednesday Thursday Friday Saturday Sunday
Answers
at her job Jessie earns 9.75 an hour. she also earns a bonus of 80 dollars every month.
Jessie needs to earn at least 500 dollars a month. create an inequality that represents this situation, where h represents the number of hours that Jessie works in a month in order to earn at least 500 dollars
Answers
Answer:
9.75h + 80 ≥ 500
Step-by-step explanation:
Hi! If we look at the problem, it says that "Jessie earns 9.75 an hour." If it is asking you to use h as the hour, it results to 9.75h. Next, she gets a bonus of 80 dollars every month. 9.75h + 80. Lastly, it says she "needs to earn at least 500 dollars". at least is a fancy way of saying greater than or equal to '≥'.
Hope this helps!
The pizza store is having a 30% off sale on all of its pizzas. If the pizza you want
regularly costs $14, how much would you save with the discount?
Answers
state if polygons are similar
Answers
Answer:
not similar
Step-by-step explanation:
hope it help