Solve, using a picture to assist you. Round to the nearest tenth if necessary.
If a 40-foot tall ladder is placed 15 feet from the base of a house, how high up the house will the
ladder reach?
Answers
Answer:
36.66 ft
Step-by-step explanation: You have to use the pythagorean theorem. a^2 + b^2 = c^2 (if you lean a ladder against a wall, it will make the shape of a triangle) The hypoteneuse would be 40 feet as it is the height of the ladder (the longest side). The one of the legs would be 15 ft (how far it is from the base of the house). You would then just plug the numbers in : a^2 + 15^2 = 40^2
a^2 + 256 = 1600
a^2 = 1344
a = 36.66
Related Questions
When humans urbanize an area, what other impact will they end up having as well?
Answers
Answer: When humans urbanize an area they
Step-by-step explanation: I think this because before people urbanized the place it was probably like a rural place or suburban. When you urbanize a place you might be taking a person or an animals homeland away and that can be a bad impact on them.
find the value of y when x=3: y= 2x +1
Answers
Answer: 7
Step-by-step explanation:
x=3 y=2x+1
Y= 2(3)+1
Answer:
y=7
Step-by-step explanation:
We want to find y when x equals 3, so we can substitute 3 in for x
y=2x+1
y=2(3)+1
Multiply
y=6+1
Add
y=7
Will give brainlyest
Two lines, A and B, are represented by the equations given below:
Line A: x + y = 6
Line B: x + y = 4
Which statement is true about the solution to the set of equations?
There are infinitely many solutions.
There is no solution.
It is (6, 4).
It is (4, 6).
Answers
Answer:
There are no solutions.
Step-by-step explanation:
If x + y equals 6, x + y cannot equal 4 (and vice versa) no matter what values are plugged in. Therefore, there are no solutions.
(9 – 6i) × m = 9 – 6i
What is m?
0
1
9 + 6i
-9 + 6i
Answers
To solve for m in the equation (9 – 6i) × m = 9 – 6i, both sides are divided by (9 – 6i), yielding m = 1.
Explanation:The equation given is (9 – 6i) × m = 9 – 6i. To find the value of m, we can divide both sides of the equation by (9 – 6i). Doing so, we get:
m = (9 – 6i) / (9 – 6i) = 1.
Therefore, the value of m is 1.
Solve the inequality 3(4-6)+ 2≥2(-t+3)+4
Answers
Answer:
I need the work please
Step-by-step explanation:
I have 100 pennies in a box. 20 of the pennies were minted in the 1990s, 20 were minted in the 1980s, 40 were minted before the 1980s and the rest were minted in this century.
What is the probability of choosing a penny that was minted in this century?
Answers
Answer:
20 pennies
Step-by-step explanation:
20+20+40=80
100-80=20%
Answer:
40%
Step-by-step explanation:
Aidan has $65 in his bank account. His brother Michael also has a bank account. They want to calculate the amount of money in both accounts combined. What variable is needed to calculate their combined total?
A.
d, the difference between the amounts in Aidan's and Michael's account
B.
a, the amount of money in Aidan's bank account
C.
m, the amount of money in Michael's bank account
D.
l, the amount of money in Michael's account last month
Answers
Answer:
C because they won't know unless they know what Michael has
Step-by-step explanation:
triangle ABC is isosceles a= 56 degrees work out three possible values of angle B
Answers
def: -in an isosceles triangle two of its angles measure the same
- the sum of all angles in a triangle is 180°
case1: if angle a measures the same with another angle in the triangle
=>angle1=56
angle2=180-2*56=180-112=68°
from this case we extract 2 posibilities:
B=56° or B=68°
case2: if the other 2 angles beside a measure the same
angle1=angle2=(180-56)/2=62°
from this case we e extract one posibility:
B=62°
Final answer:
In an isosceles triangle ABC with angle A equal to 56 degrees, three possible values for angle B are 68 degrees if it is the vertex angle, and 56 degrees or 62 degrees if it is one of the base angles.
Explanation:
If triangle ABC is an isosceles triangle with angle A (a) equal to 56 degrees, we can work out three possible values of angle B using the properties of an isosceles triangle and the fact that the sum of angles in any triangle is 180 degrees.
Since triangle ABC is isosceles, two of its angles are equal. If angle A is one of the two equal angles, then angle B (which is the vertex angle) is given by:
B = 180° - 2AIf angle B is one of the two equal angles, then we have two cases:
B = A (the two base angles are equal)B = (180° - A) / 2 (the vertex angle is different)In the first case where angle B equals angle A (56 degrees), then the other base angle (angle C) must also be 56 degrees, and the remaining vertex angle B would be 180° - 56° - 56°, which is 68 degrees.
In the second case, where B is the vertex angle:
B = 180° - 2AB = 180° - 2(56°)B = 180° - 112°B = 68 degreesThis gives us the same value for angle B as in the first case since both result in the same configuration.
Finally, if angle B is one of the two base angles and equal to angle C, then B would be (180° - A) / 2:
B = (180° - 56°) / 2B = 124° / 2B = 62 degreesSo, three possible values for angle B are 68 degrees, 56 degrees (if B is one of the base angles), and 62 degrees (again, if B is a base angle).
Ted and Meg have each drawn a line on the scatter plot shown below:
Which line best represents the line of best fit?
Line P, because it is closest to most data points
Line P, because it shows a positive association
Line R, because it is closest to most data points
Line R, because it shows a negative association
Answers
Answer:
A.)Line P, because it is closest to most data points
Step-by-step explanation:
The line of best fit is a line which best represents the data and the data points are closely related to it.
It is also known as a trend line.
The line of best fit may pass through, some , none or all of the data points.
Also if the scatter plot does not pass through all the data point then the magnitude of positive residual must be approximately equal to the magnitude of negative residual of the data points.
Hence, by looking at the scatter plot we see that all the data points lie above Line R.
Hence, the Line R will not be a line of best fit.
But all the data points lie close to the line P , hence it act as a line of best fit.
_________________________________________________
❂✨Answered By PureCartier✨❂
❉ Brainliest Would Be Appreciated❉
✯If You Have Questions Ask In the Chat Box✯
Answer:
Line P, because it is closest to most data points
Step-by-step explanation:
The sales tax on a $56.00 is 48. that rate, what would be the sales tax on 60.00 worth -
Answers
Answer:
51.43
Step-by-step explanation:
im not sure if you typed it correctly but using the above information and setting up the ratio, this is the outcome
In ΔKLM, the measure of ∠M=90°, the measure of ∠K=10°, and LM = 86 feet. Find the length of KL to the nearest tenth of a foot.
Answers
Answer:
495.3 feet
Step-by-step explanation:
delta math i got the problem wrong and it gave me the right answer
Final answer:
To find the length of KL in ΔKLM with a 90° angle at M and a 10° angle at K, we use the sine function with the given hypotenuse length of 86 feet. Calculating sin(10°) times 86 gives approximately 14.9296 feet, which rounds to 14.9 feet.
Explanation:
To find the length of KL to the nearest tenth of a foot in ΔKLM, where ∠M equals 90°, ∠K equals 10°, and LM is 86 feet, we can use trigonometry.
Since LM is the hypotenuse and we want to find KL, which is the side opposite ∠K, we will use the sine function:
sin(∠K) = opposite/hypotenusesin(10°) = KL/86 feetKL = 86 feet × sin(10°)Calculating this we get:
KL = 86 feet × 0.1736 (approximate value of sin(10°))KL ≈ 14.9296 feetKL ≈ 14.9 feet (rounded to the nearest tenth)This provides us with the length of KL in the triangle.
In △ABC, angle C is a right angle and BC > AC. Select all the statements that are true.
A. m∠B > m∠A
B. sin A > sin B
C. sin A < sin B
D. cos A > cos B
E. cos A < cos B
Answers
△ABC right angle C, leg BC > leg AC. So angle A > angle B.
a=BC, b=AC, c=AB
a > b
sin A= cos B = a/c
sin B = cos A = b/c
a = c sin A = c cos B
b = c sin B = c cos A
a > b
c sin A > c sin B
sin A > sin B
c cos B > c cos A
cos B > cos A
Answer: B, E
Final answer:
In a right-angled triangle △ABC with BC > AC, it is true that m∠B > m∠A, sin A < sin B, and cos A > cos B. These correspond to choices A, C, and D.
Explanation:
In the context of triangle △ABC where angle C is a right angle and BC > AC, we can assess the truth of various statements regarding the angles and their sine and cosine values:
m∠B > m∠A: This statement is true because in a right-angled triangle the side opposite the right angle is the hypotenuse and is the largest side. Therefore, the angle opposite the longest side (BC) must be the largest acute angle, hence m∠B > m∠A.
sin A > sin B: This statement is false. Since m∠B > m∠A and sine of an angle increases with the angle's magnitude (for acute angles), it must be that sin A < sin B.
sin A < sin B: This statement is true based on the relationship of the sides and angles mentioned earlier.
cos A > cos B: This statement is true. Since m∠B > m∠A and cosine of an angle decreases as the angle's magnitude increases (for acute angles), it must be that cos A > cos B.
cos A < cos B: This statement is false for the same reason that cos A > cos B is true.
The correct statements are therefore A, C, and D.
Vectors a = (3, 4) and b = (m, 2) are given. For which value of m they are perpendicular?
Answers
Answer:
The value of m is [tex]-\frac83[/tex].
Step-by-step explanation:
If two vectors [tex]\vec A[/tex] and [tex]\vec B[/tex] are perpendicular to each other then their dot product will be zero i.e [tex]\vec A.\vec B=0[/tex]
If two vectors [tex]\vec A[/tex] and [tex]\vec B[/tex] are parallel to each other then their cross product will be zero i.e [tex]\vec A\times\vec B=\vec 0[/tex]
Given vectors are a= (3,4) and b=(m,2)
The position vector of [tex]\vec a[/tex] is =[tex]3 \hat i+4\hat j[/tex]
The position vector of [tex]\vec b[/tex] is =[tex]m \hat i+2\hat j[/tex]
Since [tex]\vec a[/tex] and [tex]\vec b[/tex] are perpendicular.
Then,
[tex]\vec a. \vec b=0[/tex]
[tex]\Rightarrow (3\hat i+4\hat j).(m\hat i+2 \hat j)=0[/tex]
⇒3.m +4.2=0
⇒3m+8=0
⇒3m= -8
[tex]\Rightarrow m=-\frac 83[/tex]
The value of m is [tex]-\frac83[/tex].
What is the area of the triangle image above^ ASAP
Answers
So, we follow the formula as usual half times base times height
Then we do 1/2*5*2
Which is five
What is the BEST deal? 1. 60 feet of rope for $8.00 or 200 feet of rope for $30.00 2. 75 pencils for $5.75 or 100 pencils for $7.50 3. 100 thumb tacks for $3.00 or 500 thumb tacks for $16.00 4. 25,000 ball bearings for $275.00 or 60,000 ball bearings for $680.00 5. 60 apples for $43.00 or 90 apples for $63.00
Answers
To determine the best deal, divide the total cost by the total quantity for each option to find the cost per unit. Option 4, 25000 ball bearings for $275.00, offers the best deal with the lowest cost per unit.
Explanation:The best deal can be determined by comparing the cost per unit of each item. To do this, divide the total cost by the total quantity for each option.
For option 1, the cost per foot of rope is $8.00/60 ft = $0.133/ftFor option 2, the cost per pencil is $5.75/75 pencils = $0.077/pencilFor option 3, the cost per thumb tack is $3.00/100 thumb tacks = $0.03/thumb tackFor option 4, the cost per ball bearing is $275.00/25000 ball bearings = $0.011/ball bearingFor option 5, the cost per apple is $43.00/60 apples = $0.717/appleBased on these calculations, option 4, 25000 ball bearings for $275.00 offers the best deal with the lowest cost per unit.
Learn more about best deal here:https://brainly.com/question/11102934
#SPJ12
On a 40 question test students gain 6 points for each correct answer and lose 0.5 points on each incorrect answer. If everyone required to give an answer to each question, what is the formulas that describes how a student's raw score, r, depends on the number of correct answers he or she provided, c?
Answers
Answer:
r=6.5c-20
Step-by-step explanation:
The raw score is given by
r=c*6-0.5(40-c)
Taking the number of correct answers as c
The incorrect answers will be 40-c
Since each incorrect answer deducts 0.5 points. Then the deducted points will be 0.5(40-c)=20-0.5c
Since correct answers, c gives 6 points each then the number of points will be 6c
Now, the raw score will be
r=6c-(20-0.5c)
Opening the brackets, the signs change hence
r=6c-20+0.5c
r=6.5c-20
The formula that describes the student's raw score based on the number of correct answers is; r = 6.5c - 20
How to solve algebra word problems?
We are told that they gain 6 points for each correct answer and lose 0.5 points for each incorrect answer. Thus, the formula for the raw score is;
The raw score is given by
r = 6c - 0.5(40 - c)
where;
c is the number of correct answers
40 - c as number of incorrect answers
We are told that each incorrect answer deducts 0.5 points.
Thus, the deducted points = 0.5(40 - c) = 20 - 0.5c
We are told that each correct answers, c gives 6 points each. Thus, the raw score will be;
r = 6c - (20 - 0.5c)
⇒ r = 6c - 20 + 0.5c
r = 6.5c - 20
Read more about algebra word problems at; https://brainly.com/question/13818690
What is the value of b in the equation below?
StartFraction 5 Superscript 6 Over 5 squared EndFraction = a Superscript b
3
4
5
8
Answers
Answer:
I think it is 4
Step-by-step explanation:
Answer:
y = 6|x|
Step-by-step explanation:
y = |x|
When we scale vertically, we multiply by a constant
y = a f(x)
We are multiplying by 6
y = 6|x|
2x+5=3x-2
pleaaseee help
Answers
Step-by-step explanation:
2x + 5 = 3x - 2
3x - 2x = 5 + 2
x = 7
Therefore x = 7
Answer:
X=7
Step-by-step explanation:
2X+ 5=3x-2
5=x-2
7=x
Which correctly describes the two transformations that where used to create the image on the graph?
Answers
Answer:
A. Reflection over the y-axis and rotation 90° counterclockwise
Answer:
The answer is A (:
Step-by-step explanation:
Please help need answers asap!!
Answers
Answer:
1. 2
Step-by-step explanation:
1. cross multiply then simplify
Answer to problem 1:
x=2
Reasoning:
1) Simplify 10/20 to 1/2
2) Multiply the numerator and denominator by 2 to get 2/4
Answer to problem 4:
1 in: 18 in
Reasoning:
1) Convert 15 feet to inches
15*12=180
2) Use a ratio of 10 inches to 180 in and simplify it to 1:18
Answer to problem 5:
m = 38.44
1) Use the technique "Cross multiplication" and make the following equation
8.45*7.5=3.6m
2) 8.45*7.5=138.375
3) 138.375=3.6m and divide 3.6 from both sides of the equation,
4) You get 38.4375, and round up to the nearest hundredth of 38.44
Answer to problem 6:
92°
When 2 triangles are similar, their lengths are needed to multiplied by a scale factor but, the angles remain the same.
Sorry, I didn't have enough time to answer the other question...
Hope this helped...
1.lA right triangle ABC is shown. What is cos A?
Answers
Answer:
cos A = 8/17
Step-by-step explanation:
For a right triangle
cos theta = adj side/ hypotenuse
cos A = 8/17
Does this graph have a maximum
or minimum value?
Answers
Answer:
can you provide a picture or an equation?
Step-by-step explanation:
Answer:
If the vertex is at the top of the graph it is a maximum and if it is at the bottom it is a minimum
Step-by-step explanation:
What is the median of Restaurant A's service ratings?
1
2
3
4
5
Answers
Answer:
3
Step-by-step explanation:
write them out least to greatest- 1 2 3 4 5
then mark out one at a time from front and back- 1 2 3 4 5
then you get one number and that number is 3
Answer:
3
Step-by-step explanation:
Process for finding median:
1. Line the numbers in order from least to greatest.
2. Find the middle number --> it is the median.
3. If there are two middle numbers, find their average. In other words, add the two numbers together and divide your answer by 2.
Hope this helps!
What is a system of equations?
Answers
Answer and Step-by-step explanation:
A system of equations is a group of equations that need to be manipulated in some way that will figure out the values of the variables.
The most common system of equations seen is a system of linear equations, which means that the degree of the variables is no more than 1. These can be solved using elimination, substitution, or even graphing, if applicable.
Hope this helps!
Answer:
A system of equations is 2 or more equations that need to be solved. When you solve a system of equations, the answer is where the equations intersect on a graph. Sometimes there is 2 solutions (equations intersect twice), 1 solution (equations intersect once), no solution (equations don't intersect), or infinite solutions ( equations are the same).
They are usually solved using substitution, elimination, or simply looking at a graph to see where the lines intersect.
Some examples:
2x+3y=15
x-3y=3
y=x^2+1
2x-y= -4
PLEASE HELP I NEED IT!!!
Month Sales
June $15,872.56
July $15,692.98
August $18,991.21
September $18,099.99
October $16,225.74
Using the Data from the table, list the monthly sales in ascending order by month.
Question 2 options:
July, June, September, October, August
August, July, June, September, October
August, October, September, June, July
July, June, October, September, August
Answers
Answer:
This is pretty easy:July, June, October, September, August.
Step-by-step explanation:
All you have to do is look at the least to greatest numbers:)!
SimpleMathmatics.org -SmartieSchool
What is the surface area of a cylinder that is 5 centimeters high and has a diameter of 1.5 centimeters?
A) 7.5π cm²
B) 8.625π cm²
C) 10.5 π cm²
D) 19.55π cm²
Answers
The surface area of the cylinder is 16.125π cm², which is closest to option D) 19.55π cm².
To find the surface area of a cylinder, we need to calculate the sum of the areas of its two bases and its lateral surface.
The formula for the lateral surface area of a cylinder is given by:
[tex]\[ LSA = 2 \pi r h \][/tex]
where [tex]\( r \)[/tex] is the radius and [tex]\( h \)[/tex] is the height of the cylinder.
Given that the diameter of the cylinder is 1.5 centimeters, the radius [tex]\( r \)[/tex] is half of that, which is [tex]\( \frac{1.5}{2} = 0.75 \)[/tex] centimeters.
The height of the cylinder is given as 5 centimeters.
Substituting these values into the formula for the lateral surface area:
[tex]\[ LSA = 2 \pi (0.75) (5) \][/tex]
[tex]\[ LSA = 15 \pi \][/tex]
Now, we need to find the area of the two bases of the cylinder. Since the cylinder has two circular bases, we can find their combined area using the formula for the area of a circle:
[tex]\[ A_{\text{base}} = \pi r^2 \][/tex]
[tex]\[ A_{\text{base}} = \pi r^2 \][/tex]
[tex]\[ A_{\text{base}} = \pi (0.75)^2 \][/tex]
[tex]\[ A_{\text{base}} = \pi (0.5625) \][/tex]
[tex]\[ A_{\text{base}} = 0.5625 \pi \][/tex]
The total surface area is the sum of the lateral surface area and the areas of the two bases:
[tex]\[ \text{Total Surface Area} = LSA + 2A_{\text{base}} \][/tex]
[tex]\[ \text{Total Surface Area} = 15 \pi + 2(0.5625 \pi) \][/tex]
[tex]\[ \text{Total Surface Area} = 15 \pi + 1.125 \pi \][/tex]
[tex]\[ \text{Total Surface Area} = 16.125 \pi \][/tex]
[tex]\[ \text{Total Surface Area} = 16.125 \pi \][/tex]
Therefore, the surface area of the cylinder is 16.125π cm².
The closest option is D) 19.55π cm².
Look at the inequality 5x+1 >_35
Answers
Answer:
x>_6.8
Step-by-step explanation:
.
8x-3=3x+17
Solve for x
Answers
Answer:
x = 4
Step-by-step explanation:
Answer:
x=4
Step-by-step explanation:
To solve, we need to isolate the variable, x by getting all the numbers to one sides and the variables to the other
8x-3=3x+17
Subtract 3x from both sides
8x-3x-3=3x-3x+17
5x-3=17
Add 3 to both sides
5x-3+3=17+3
5x=20
Divide both sides by 5
5x/5=20/5
x=4
2. Eric had $197 in his savings account before he was paid his weekly salary. His current
savings balance is $429. If Eric deposits all of his earnings, then how much money does he
earn each week? Justify your answer.
a. 197 + 429 = n
b. 197 + n = 429
c. 197n = 429
d. None of the above.
Answers
Answer:
I think its b.
Step-by-step explanation: If he already has 197 then he would need to add an amount of money in this case n=232 so if you do 197 plus 232 you would get 429. Hope this helps
solve the equation by completing the sqaure. if necessary round to the nearest hundreth x^2+4x=1
Answers
Answer:
x = ± √ 5 − 2
Step-by-step explanation: