Answers
Related Questions
The base of 40-foot ladder is 8 feet from the wall. How high is the ladder on the wall (round to the nearest foot)
Answers
Given:
The base of 40-foot ladder is 8 feet from the wall.
To find:
How high is the ladder on the wall (round to the nearest foot).
Solution:
Ladder makes a right angle triangle with wall and ground.
We have,
Length of ladder (hypotenuse)= 40 foot
Base = 8 foot
We need to find the perpendicular to get the height of the ladder on the wall.
Let h be the height of the ladder on the wall.
According to the Pythagoras theorem,
[tex]Hypotenuse^2=Base^2+Perpendicular^2[/tex]
[tex](40)^2=(8)^2+(h)^2[/tex]
[tex]1600=64+h^2[/tex]
[tex]1600-64=h^2[/tex]
[tex]1536=h^2[/tex]
Taking square root on both sides.
[tex]\pm \sqrt{1536}=h[/tex]
[tex]\pm 39.1918358=h[/tex]
Height cannot be negative. Round to the nearest foot.
[tex]h\approx 39[/tex]
Therefore, the height of the ladder on the wall is 39 foot.
whats the slope of (10,8) and (-15, 18)
Answers
10/-25
Simplified its
2/-5
Answer:
[tex]m=-\frac{2}{5}[/tex]
Step-by-step explanation:
Write an equation of the line with a slope of -4 and a y-intercept of 2.
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Answer:
Step-by-step explanation:
-4 x y-= 2
The half-life of carbon-14 is 5,730 years. Suppose a fossil is found with 10 percent as much of its carbon-14 as compared to a living sample. How old is the fossil?
Answers
Answer:
19050 or some other number very close like 19039
Step-by-step explanation:
I took test and got this one right.
Answer:
the guys above :)
Step-by-step explanation:
give him brainliest if you have not :)
And I also don’t know how to do this.
Answers
C is the answer because i did this and it not that hard if you let the teacher explain to u
Find the exact length of the third side
Answers
Answer:
9.9
Step-by-step explanation:
How is solving inequalities with multiplication and division similar to solving equations with multiplication and division?
Answers
Answer:
The process is the same. They just have different symbols.
Step-by-step explanation:
6th grade math help me plzzz :))
Answers
Answer:
75%
Step-by-step explanation:
So i know that 5$ = 25%
So if i go up 3 times i get 15$ so that means you do 25% x 3 to get 75%
If y = x + 5 and x = 3, then y = what?
Answers
y=8
Step-by-step explanation:
y=x+5 x=3
y=3+5
therefore
y=8
How much money she owe her plz help
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worth 10 points ! need help asap
Which shows the given inequalities in slope-intercept
form?
Answers
Answer:
second option
Step-by-step explanation:
You want to isolate the 'y' in each inequality:
4x - 5y ≤ 1
-5y ≤ -4x + 1
y ≥ 4/5x - 1/5 (inequality symbol changed because we divided by a negative)
1/2y - x ≤ 3
y - 2x ≤ 6 we multipled the original inequality by 2 to eliminate the denom.
y ≤ 2x + 6
hi waht is m⁵×m⁴ in algebra maths
Answers
Answer:
m⁹
Step-by-step explanation:
In such questions , when any two or more numbers with exponents are multiplied and their bases are equal , the exponents of all the numbers add up . So ,
[tex]m^{5} \times m^{4} = m^{5+4} = m^{9}[/tex]
Select the correct text in the passage,
What is the opportunity cost in this scenario?
Mikael has saved $4,000 for his trip to Brazil. He has calculated that his total transportation expenses will be $1,000. The hotel will cost him
another $1,500. He will spend about $500 on food. He plans on spending the remaining $1,000 for sightseeing and buying souvenirs.
While booking his plane ticket
, he realizes that the price has gone up. His total transportation expenses will go up by $200. He realizes that he
cannot cancel his hotel reservation. He also doesn't want to go cheap on food. Finally, he decides to give up visiting the popular Ouro Preto
during his stay in Brazil
Reset
Next
mentum All rights reserved
Answers
Answer:
Sightseeing
Step-by-step explanation:
A moving company offers two price plans,
• The first plan charges a flat rate of $39.95 plus $0.12 per mile driven,
• The second plans charges a flat rate of $19.95 plus $0.28 per mile driven
How many miles must the truck be driven for the two plans to cost the same?
Answers
Second: 19.95 + 0.28m
Set them equal
39.95 + 0.12m = 19.95 + 0.28m
39.95 = 19.95 + 0.16m
20 = 0.16m
m = 125
Solution: 125 miles
What is the value of x when 9( x - 9)= -11
Answers
Answer:
x = 70/9
Step-by-step explanation:
9x - 81 = -11
move it to the right
9x = -11 +81
calculate
9x = 70
divide both sides
x = 70/9
The inverse of f (x)=x^2-3 is?
Answers
Answer:
[tex]f^{-1}[/tex](x)=[tex]\sqrt{x+3}[/tex] , - [tex]\sqrt{x+3}[/tex]
Step-by-step explanation:
Lisa is buying a computer for $1,500. The sales tax rate is 8.5%. Which expression should be used to calculate t, the total cost for the computer including tax?
Answers
Answer:
t=$1627.5Step-by-step explanation:
Step one:
given data
price of computer= $1500
sales tax= 8.5%
Step two
Let us compute the amount in tax
tax= 8.5/100*1500
=0.085*1500
=$127.5
Let the total cost be t
hence
t=1500+0.085*1500
t=1500+127.5
t=$1627.5
Dan invests £18790 into his bank account. He receives 5.3% per year simple interest. How much will Dan have after 7 years?
Answers
Answer: 55
Step-by-step explanation:
67
What fraction is equivalent to -3/2
Answers
Answer:
8/12
Step-by-step explanation:
Hope it’s right
Which of the following is a solution to this inquality
Answers
Answer:
(0,-2)
Step-by-step explanation:
A cable company charges 150 to install equipment. Then there is a $50 charge each month. Write an equation to express this relationship
Answers
can some please helppp
Answers
Answer:
8
Step-by-step explanation:
PLS RESPOND FAST!! What is the value of x in the diagram belo2v
A. 9
B. 8
C. 7
D. 6
Answers
Answer:
C
Step-by-step explanation:
The 2 triangles are similar (AA postulate ), thus the ratios of corresponding sides are equal, that is
[tex]\frac{14}{2}[/tex] = [tex]\frac{49}{x}[/tex] ( cross- multiply )
14x = 98 ( divide both sides by 14 )
x = 7 → C
can a triangle be made with side lengths of 1, 2, and 4 plsss
Answers
NO IT CANNOT BE MADE
Step-by-step explanation:
Since, The sum of the lengths of any two sides of a triangle must be greater than the length of the third side.
determine this systems of equations no solution, one solution, infinitely many solutions
y=5x-20
4x+12=y
Answers
Answer:
one solution
Step-by-step explanation:
Which expression represents the calculation the sum of x and 8 is divided by 6
Answers
The required expression model is given as x + 8 / 6. Option B is correct.
Given that,
To determine the expression represents the calculation the sum of x and 8 is divided by 6
What are equation models?
The equation model has defined as the model of the given situation in the form of an equation using variables and constants.
here,
According to the question,
The sum of x and 8 = x + 8
divided by 6
= x + 8 / 6
Thus, the required expression model is given as x + 8 / 6. Option B is correct.
Learn more about models here:
https://brainly.com/question/22591166
#SPJ2
6th grade math help me plzzzz
Answers
Answer:
-0.9
Step-by-step explanation:
First we have to distribute. -1 times t is -1t and -1 times 8 is -8. Now, our equation will look like this: -1t - 8 = -7.1
Next, we have to carry our -8 to the other side of the euqation. So, we have to plus 8 on both sides. -7.1 plus 8 is 0.9. Now, our equation will look like this,
-1t = 0.9.
Lastly, we have to divide -1 from both sides. 0.9 divided by -1 is -0.9. So therefore, t = -0.9.
-7 2/3+ (-5 1/2) + 8 3/4
=
Answers
Answer:
-4 5/12
Step-by-step explanation:
Answer:
Step-by-step explanation:
-4.41666666667
At Grab & Go Grocery, you can buy 4 yogurt cups for $5. If the unit price stays the same, how much would it cost to buy 10 yogurt cups?
Answers
Answer:
12.50
Step-by-step explanation:
Each yogurt is $1.25. 1.25 x 4 = 5. so 1.25 x 10 = 12.50.
34) Which temperature is colder? -16 degrees or -32 degrees
Answers
Answer:
-32 is colder
Answer:
-32 degrees? i believe so
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