how can you use pythagora's theorem to solve problems involving right-angled triangles
Using Pythagorean theorem, the length of the ladder is 10ft
What is Pythagorean Theorem?In mathematical terms, if y and z are the lengths of the two shorter sides (also known as the legs) of a right triangle, and x is the length of the hypotenuse, the Pythagorean theorem can be expressed as:
x² = y² + z²
In the questions given, the only one we can use Pythagorean theorem to solve is the one with ladder since it's forms a right-angle triangle.
To calculate the length of the ladder, we can write the formula as;
x² = 8² + 6²
x² = 64 + 36
x² = 100
x = √100
x = 10
The length of the ladder is 10 feet
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The temperature inside a cooling unit is measured in degrees Celsius, C. Josh wants to find out how cold it is in degrees Fahrenheit, F. Solve the formula C = (F-32) for F so that Josh can convert Celsius to Fahrenheit.
To convert Celsius to Fahrenheit, Josh needs to use the formula; F = (9/5)C + 32
Let C represent the degrees Celsius and F represent the degrees Fahrenheit.
The relationship between C and F is given as:
C = (F-32) × 5/9
Hence to convert Celsius to Fahrenheit, we make F the subject of formula:
C = (F-32) × 5/9
9C/5 = (F-32)
F = (9/5)C + 32
To convert Celsius to Fahrenheit, Josh needs to use the formula; F = (9/5)C + 32
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Answer:
Step-by-step explanation: This is one of the most common examples given in math textbooks, and it's useful to know if you ever travel outside the U.S., or if you are from outside the U.S. and travel here.
C = 5/9 (F - 32)
9C = 5(F - 32)
9/5 C = F - 32
9/5 C + 32 = F
F = 9/5 C + 32
Write the equation of this line in slope-intercept form.
The equation of the linear function is y = -5x - 3
How to determin the equation of the linear functionFrom the question, we have the following parameters that can be used in our computation:
The graph
A linear equation is represented as
y = mx + c
Where
c = y when x = 0
This means that
y = mx - 3
From the graph, we have
(x, y) = (-1, 2)
Substitute the known values in the above equation, so, we have the following representation
2 = -m - 3
Evaluate
m = -5
So, we have
y = -5x - 3
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Line k is represented by the equation y = 2x + 2. Write
an equation of a line that is perpendicular to line k that also passes through the point (-2, 9)?
Step-by-step explanation:
so, we calculate the perpendicular slope, and then we start with the point-slope form (since we were given a specific point of the line), and transform into the regular slope-intercept form.
the slope in
y = 2x + 2
is the factor of x : 2 or 2/1
the perpendicular slope is turning this upside down and flips the sign : -1/2
the point- slope form is
y - y1 = a(x - x1)
"a" being the slope, (x1, y1) being the point.
y - 9 = -1/2(x - -2)
y - 9 = (-1/2)x - 1
y = (-1/2)x + 8
HELP ASAP 15 POINTS
Look i know this isnt mathematics but its an easy 15 points if your good a rhyming or if you just know the basics.
I need a rap or song about the six main nutrients (water, protein, carbohydrates, fats, minerals, and vitamins)
Answer:
I hope this helps
Step-by-step explanation:
carbonhydrates protein water fats minerals and vitamins
24. This week, Cristina eamed P594.65 from selling burgers for 35 days. How much he will earn in 5 days?
A. P84.95
B. P94.95
C. P104.95
D. P114.95
25. You have four quizzes in your math subject in a quarter. You got 88.75 for the first quiz, 85.5, 90.5, and 87.25 in the second, third and fourth quizzes, respectively. What is your average in the four quizzes this quarter?
A. 86.5
B. 88
C. 89.5
D. 90 26. Amberich put P580.00 into a savings account for one year. The rate of interest on the account was 6.5%. How much was the interest for one year in pesos and centavos?
A. P67.70
B. P37.70
C. P57.70
D. P17.70
24. This week , Cristina eamed P594.65 from selling burgers for 35 days . How much he will earn in 5 days ?
A. P84.95
B. P94.95
C. P104.95
D. P114.95
25. You have four quizzes in your math subject in a quarter . You got 88.75 for the first quiz , 85.5 , 90.5 , and 87.25 in the second , third and fourth quizzes , respectively . What is your average in the four quizzes this quarter ?
A. 86.5
B. 88
C. 89.5
D. 90
26. Amberich put P580.00 into a savings account for one year . The rate of interest on the account was 6.5 % . How much was the interest for one year in pesos and centavos ?
A. P67.70
B. P37.70
C. P57.70
D. P17.70
Question 24 :
P594.65 : 35 days
P594.65/7 : 35/7 days
P84.95 : 5 days
⇒ A. P84.95
Question 25 :
88.75 + 85.5 + 90.5 + 87.25 / 4
352/4
88
⇒ B. 88
Question 26 :
I = P × r × t
I = 580.00 × 0.065 × 1
I = P37.70
⇒ B. P37.70
The graphs below have the same shape. What is the equation of F(x)?
F(x) =
G(x) = x²
10
F(x)=???
OA. F(x) = x² +3
OB. F(x)=x²-3
C. F(x) = (x-3)²
O D. F(x)=(×+3)2
The equation of F(x) is given as follows:
A. F(x) = x² + 3.
How to define the equation for F(x)?The equation for F(x) is defined as a translation of function G(x), as the graph has the same format and orientation, just has a different position.
The definitions of each type of translation are given as follows:
Translation left a units: f(x + a).Translation right a units: f(x - a).Translation up a units: f(x) + a.Translation down a units: f(x) - a.From the graph given by the image shown at the end of the answer, G(x) = x² and F(x) was shifted up 3 units, hence it's definition is given as follows:
Missing InformationThe graph is given by the image shown at the end of the answer.
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11. What is the reciprocal of 6/5?
OA. 12/20
OB.11/5
OC.1
OD.576
Answer: The answer is D, 5/6.
Step-by-step explanation: The reciprocal of a fraction is that fraction but the numerator and denominater swapped places.
Answer:
5/6
Step-by-step explanation:
The reciprocal is where you flip the fraction
6/5 -> reciprocal -> 5/6
I'm not sure about your answer choices tho, sorry
A jar contains 20 yellow jellybeans, 20 orange jellybeans, 20 red jellybeans and 20 green jellybeans.
Required:
a. In how many ways can you put all the jellybeans in a row?
b. How many ways are there to select a handful of 20 jellybeans?
c. How many ways are there to select a handful of 20 jellybeans that contains at least 3 red?
d. How many ways are there to select a handful of 20 jellybeans that contains at least 3 red and at most 2 orange?
Answer:
A)
\(\left \{ {{80} \atop {20}} \} * \left \{ {{60} \atop {20}} \} * \left \{ {{40} \atop {20}} \} * \left \{ {{20} \atop {20}} \}\)
B)
\(\left \{ {{20+4-1} \atop {4-1}} \} = \left \{ {{23} \atop {3}} \}\)
C)
= \(\left \{ {{17+4+1} \atop {4-1}} \} = \left \{ {{20} \atop {3}} \}\)
D)
= \(\left \{ {{20} \atop {3}} \} - \left \{ {{17} \atop {3}} \}\)
Step-by-step explanation:
A) How many ways can you put all Jellybeans in a row
Total number of Jellybeans = 80
The first jellybeans = 20 yellow , second is 20 orange jellybeans , third is 20 red jellybeans , fourth is 20 green jellybeans
Therefore the number of ways the Jellybeans can be put in a row is :
\(\left \{ {{80} \atop {20}} \} * \left \{ {{60} \atop {20}} \} * \left \{ {{40} \atop {20}} \} * \left \{ {{20} \atop {20}} \}\)
B) How many ways are there to select a handful of 20 jellybeans
lets assume:
yellow jellybeans = a , orange jellybeans = b , red jellybeans = c , green jellybeans = d
a + b + c + d = 20
This is the number Non-negative integer solutions
= \(\left \{ {{20+4-1} \atop {4-1}} \} = \left \{ {{23} \atop {3}} \}\)
C) This is also the number of Non-negative integer solutions but in this case the value of C ≥ 3
hence the number of ways to select a handful of 20 jellybeans that contains at least 3 red
= \(\left \{ {{17+4+1} \atop {4-1}} \} = \left \{ {{20} \atop {3}} \}\)
D) In this case the value of C ≥ 3 and B ≤ 2
Hence the number of ways to select a handful of 20 jellybeans that contains at least 3 red and at most 2 orange
= \(\left \{ {{20} \atop {3}} \} - \left \{ {{17} \atop {3}} \}\)
Q. The probability that a student passes a statistics test is 2/3 and the
probability that he passes both statistics and mathematics is
14/45. The probability that he passes at least one test is 4/5. What
is the probability that the student passes the mathematics test?
Answer:
4/9 or 44.44%
Step-by-step explanation:
We have the following probabilities:
Probability of winning the statistical test = P (s) = 2/3
Probability of winning the mathematics and statistics test = P (s n m) = 14/45
Probability of winning at least one test = P (s u m) = 4/5
We have that, the probability of winning the mathematics test P (m) can be found in the following way:
P (s n m) = P (s) + P (m) - P (s u m)
replacing we have:
14/45 = 2/3 + P (m) - 4/5
P (m) = 14/45 - 2/3 + 4/5
p (m) = 4/9 = 0.444
Which is the same as there is a 44.44% probability that I will win the math test
SOLVE this equation.
0.5r+5=r-8
Answer:
r = 26
Step-by-step explanation:
Let's solve the problem,
→ 0.5r + 5 = r - 8
→ r - 0.5r = 5 + 8
→ 0.5r = 13
→ r = 13/0.5
→ [ r = 26 ]
So, the value of r is 26.
John backed into his neighbor's fence while backing his vehicle out and
caused $500 worth of damage. The insurance company paid for $100 of the
damage while John had to pay the remaining $400. The amount John paid
was his
A. deductible
B. premium
C. collision
O D. liability
Answer:
A. deductible
Step-by-step explanation:
i cannot really explain it, its just what the word means.
The population of Town A is 60 and the population of Town B is 110. Compare the populations of the towns by filling in the below blank. Town A is ______% smaller than Town B.
Answer:
54.54%
Step-by-step explanation:
what porcentage is 60 of 110
How would I figure out a linear equation with two plot points with fractions? (1/3(6),3) and (1/2(19),-2) are my two plot points. I was able to graph them on Desmos, but I can't seem to figure out how I would go about figuring out the slope and y-intercept in this case... the fractions are what's throwing me off here. Please help!
Answer: \(m=\frac{-30}{79},\ y=5.40\)
Step-by-step explanation:
Given
Points are \(\left(6\frac{1}{3},3\right),\ \left(19\frac{1}{2},-2\right)\)
Convert mixed numeral to fraction
\(\left(6\frac{1}{3},3\right)\Rightarrow \left(\dfrac{19}{3},3\right)\\\\\left(19\frac{1}{2},-2\right)\Rightarrow \left(\dfrac{39}{2},-2\right)\)
Slope of the line is
\(\Rightarrow m=\dfrac{3-(-2)}{\dfrac{19}{3}-\dfrac{39}{2}}\\\\\Rightarrow m=\dfrac{5}{\dfrac{38-117}{6}}\\\\\Rightarrow m=\dfrac{-30}{79}\)
Equation of line
\(\Rightarrow \dfrac{y-3}{x-\dfrac{19}{3}}=\dfrac{-30}{79}\\\\\text{for y-intercept, put x=0}\\\\\Rightarrow \dfrac{y-3}{0-\dfrac{19}{3}}=\dfrac{-30}{79}\\\\\Rightarrow y-3=\dfrac{190}{79}\\\\\Rightarrow y=3+2.40\\\Rightarrow y=5.40\)
You are planning for a very early retirement. You would like to retire at age 40 and have enough money saved to be able to draw per year for the next years (based on family history, you think you'll live to age ). You plan to save for retirement by making equal annual installments (from age to age 40) into a fairly risky investment fund that you expect will earn % per year. You will leave the money in this fund until it is completely depleted when you are years old.
After considering the given values we can come to the conclusion that the annual installment that has to be made to the investment fund to retire within the age of 40 with enough money to draw $75,000 per year until age 90, assuming a risky investment that earns 8% per year, is approximately $16,431.
To evaluate the equal annual installment that you need to make from age to age 40, we need to use the present value of an annuity formula:
PMT = (PV × r) / (1 - (1 + r)⁻ⁿ)
Here,
PMT= equal annual installment,
PV =present value of the investment fund at age 40,
r = expected annual rate of return on the fund,
n = number of years over which the payments will be made.
We can proceed by evaluating the present value of the investment fund that we need at age 40, based on the assumption that we will draw per year for the next years.
Let's call this present value PV2. Assuming an interest rate of r2 for the period from age 40 to age, we can calculate PV2 using the present value of a perpetuity formula:
PV2 = PMT2 / r2
Here,
PMT2 = annual draw we plan to make from age to age .
Next, we need to evaluate the present value of the investment fund at age, which we will call PV1. Now we can apply the future value of an annuity formula:
FV = PMT × ((1 + r)ⁿ⁻¹) / r
Here,
FV = future value of the annuity at age,
PMT = equal annual installment,
r = expected annual rate of return on the fund,
n = number of years over which the payments will be made (in this case, the number of years from age to age ).
We can then apply the present value formula to evaluate PV1:
PV1 = FV / (1 + r)ⁿ
Finally, we can apply substitution the values we have evaluated into the PMT formula to find the equal annual installment:
PMT = (PV1 × r) / (1 - (1 + r)⁻ⁿ)
Once we have calculated PMT, we can start making annual payments into the investment fund starting at age and continuing until age 40.
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Figure 2 was constructed using figure 1. For the transformation to be defined as a rotation, which statements must be true? Select three options. The segment connecting the center of rotation, C, to a point on the pre-image (figure 1) is equal in length to the segment that connects the center of rotation to its corresponding point on the image (figure 2). The transformation is rigid. Every point on figure 1 moves through the same angle of rotation about the center of rotation, C, to create figure 2. Segment CP is parallel to segment CP'. If figure 1 is rotated 180° about point C, it will be mapped onto itself.
Answer:
all but the last two
Step-by-step explanation:
Rotation is a rigid transformation that moves every point of a figure through the same rotation angle about the center of rotation. Each point has the same distance from the center it had before the rotation. Hence the following are true:
The segment connecting the center of rotation, C, to a point on the pre-image (figure 1) is equal in length to the segment that connects the center of rotation to its corresponding point on the image (figure 2). The transformation is rigid. Every point on figure 1 moves through the same angle of rotation about the center of rotation, C, to create figure 2.__
Statements that do not apply are ...
- Segment CP is parallel to segment CP'. (A segment to the center of rotation will only be parallel to the corresponding segment on the image if the rotation is a multiple of 180°.)
- If the figure is rotated 180° about C, it will be mapped to itself. (This will be true in general only if C is a center of rotational symmetry of even order.)
Answer:
A,B,C
Step-by-step explanation:
I'm sure cause I got it right depends what your Edgenu is, mine is 2020
What is the answer to this ?
Answer:
Triangle P has been rotated clockwise by 90° about the point (0,0).
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Elias Rubio deposits three checks for $598.20, $2,274.26, and $3,248.79.
His cash consists of 75 one dollar bills, 78 five dollar bill., 83 ten-dollar
bills, 80 quarters, 32 dimes, 95 nickels, and. 5 pennies. He would like to
receive $40.00 in cash.
Answer:
$1,136.80
Step-by-step explanation:
The total deposits of Elias Rubio mone through Cash Deposit and Cheque Deposit is $7258.05.
How to find a total deposit?The total deposit can be calculated by the total money deposit either by cheque or cash.
Elias Rubio deposits three checks for $598.20, $2,274.26, and $3,248.79.
Total Cheque Deposit = $598.20 + $2,274.26 + $3,248.79.
= 6121.25
75 one-dollar bills = 75x 1 = $ 75.00
78 five-dollar bills = 78 x5 = $ 390.00
83 ten dollar bills = 83 x 10 = $ 830.00
80 quarters = 80 x 25 cents = $ 20.00
32 dimes = 32 x 10 cents = $ 3.20
95 nickels = 95 x 5 cents = $ 4.75
5 pennies = 5 x 1 cents = $ 0.5
Total Cash Deposit = $1,136.80
Therefore, Elias Total Deposit
= Total Cheque Deposit+ Total Cash Deposit
= $6121.25+$1,136.80
= $7258.05
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can somebody help me with this
Hey there!
5x = 120 {Obtain a formula for x }
=> \(\fbox{5x = 120}\) { Divide both side by 5}
=> \(\fbox{5x/5 = 120/5}\) { divide 5x by 5}
=> \(\fbox{x = 120/5}\) { Divide 120 by 5}
=> \(\fbox{x = 24}\)
Therefore, x = 24°
A stone is dropped from the upper observation deck of a tower, 950 m above the ground. (Assume g = 9.8 m/s2.)
(a) Find the distance (in meters) of the stone above ground level at time t.
h(t) = 13.92
(b) How long does it take the stone to reach the ground? (Round your answer to two decimal places.)
s
(c) With what velocity does it strike the ground? (Round your answer to one decimal place.)
m/s
(d) If the stone is thrown downward with a speed of 6 m/s, how long does it take to reach the ground? (Round your answer to two decimal places.)
s
a) The distance of the stone above ground level at any time t is given by h(t) = 950 + 4.9t², where h(t) is measured in meters and t is measured in seconds.
b) It takes approximately 13.93 seconds for the stone to reach the ground.
c) The stone strikes the ground with a velocity of approximately 136.04 m/s.
d) It takes approximately 16.75 seconds for the stone thrown downward with a speed of 6 m/s to reach the ground.
When objects are dropped or thrown from a height, their speed and position can be determined using physics equations. In this problem, we will calculate the distance, time, and velocity of a stone dropped from a tower.
First, we need to determine the equation for the height of the stone above the ground at any given time t. We can use the formula:
h(t) = h0 + vt + 0.5at²
where h0 is the initial height, v is the initial velocity (which is zero for a dropped object), a is the acceleration due to gravity (g = 9.8 m/s^2), and t is the time since the stone was dropped.
Using the given values, we can plug in the numbers and simplify:
h(t) = 950 + 0t + 0.5(9.8)t²
h(t) = 950 + 4.9t²
To find the time it takes for the stone to reach the ground, we need to set h(t) = 0 and solve for t:
0 = 950 + 4.9t^2
t^2 = 193.88
t ≈ 13.93 seconds
To find the velocity at which the stone strikes the ground, we can use the formula:
v = v₀ + at
where v₀ is the initial velocity (which is zero for a dropped object) and a is the acceleration due to gravity (g = 9.8 m/s²). We can plug in the values for t and solve for v:
v = 0 + 9.8(13.93)
v ≈ 136.04 m/s
Finally, if the stone is thrown downward with a speed of 6 m/s, we can use the same formula for h(t) as before, but with an initial velocity of -6 m/s. We can then find the time it takes to reach the ground using the same method as before:
h(t) = 950 - 6t + 0.5(9.8)t²
0 = 950 - 6t + 4.9t²
t² - 1.22t - 193.88 = 0
t ≈ 16.75 seconds
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Can you tell me the answer? P p pp p p p p p p p p p p p p
Answer:
Length of AC will be 6cm as the line indicates that its equal.
Length of AB will also be 6cm as its given in the question.
Angle BAC will be 56 degree
Angle ACB will be 174 degrees (not so sure)
Elizabeth models the volume of a popcorn box as a right rectangular prism. Its dimensions are
2
1/4
in by
2
1/4
in by
6
1/4
in. How many cubic inches of popcorn would it hold when it is full? Round your answer to the nearest tenth if necessary
The popcorn box would hold 31.64 cubic inches.
What is volume?Volume is defined as the amount of space occupied by an object within the boundaries in the three dimensional space.
The popcorn box modelled by Elizabeth is in the shape of right rectangular prism.
The dimensions length, breadth and height is given as, \(2\frac{1}{4} *2\frac{1}{4}*6\frac{1}{4}\) inches.
Volume of popcorn box holds is,
Volume of rectangular prism = Length*width*height
= \(2\frac{1}{4} *2\frac{1}{4}*6\frac{1}{4}\)
= 31.64 cubic inches.
Hence, the popcorn box would hold 31.64 cubic inches.
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. In a fort, there were provisions for 400 men for 23 weeks. 60 more men joined them. How long will the provisions
last?
The additional 60 men, the provisions will last for approximately 20 weeks.
To determine how long the provisions will last with the additional 60 men, we need to consider the total number of people and the original duration the provisions were meant to last.
Originally, the provisions were intended to sustain 400 men for 23 weeks. This means that the provisions were estimated to be sufficient for a total of 400 * 23 = 9200 person-weeks.
Now, with the additional 60 men, the total number of men becomes 400 + 60 = 460.
To calculate how long the provisions will last with the increased number of men, we divide the total person-weeks by the new number of men:
Provisions last = Total person-weeks / Number of men
= 9200 / 460
≈ 20 weeks (rounded to the nearest whole number)
The additional 60 men will extend the supply's shelf life to around 20 weeks.
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Q8. How many solutions does the system of equations have?
Answer:
it would be the first answer
Step-by-step explanation:
a solution is where the lines meet, and the coorinate is (1,4)
m What is the value of y in the system of equations shown below? X-10=0 3x + 5y = 20 ح
Answer:
y= -2
Step-by-step explanation: x-10=0 move the - 10 to the other side it will be +10 s0 x=10
then use that value to solve the second equation
3*10 +5y=20
30 +5y=20
remember: anything that moves to the other side of the equation always invert its sign so +30 will be -30
5y= 20-30
5y= -10
y= -10/5
y= -2
50 POINTS!!!
Please I need fast and correct answer. I will award the best answer with brainliest!!!
Answer:
What are the options that you can choose?
Step-by-step explanation:
Does 17 divide each of these numbers?
a)68 b) 84 c) 357 d) 1001
Hello !
68/17 = 4
=> yes for 68
84/17 = 4.941...
=> no for 84
357/17 = 21
=> yes for 357
1001/17 = 58.882...
=> no for 1001
Help me plsssssssssssssssss
Answer:
5/2
Step-by-step explanation:
(5/3+4/3)/4-2=3/4-2=-5/4
(-5/4)*(-2)=5/2
Match the given algebraic expression to its verbal description.(x+3)³ + y²Select one: a. The sum of (x + 3)³ and y².b.The cube of the sum of (x + 3) and y².c. The cube of the sum of x and 3.d. None of these.
Given the following expression:
\(\left(x+3\right)³+y²\)The verbal description will be option a
The sum of (x + 3)³ and y².
anyone know the answer?? the question is the sreenshot
Answer and solution in the picture hope it helps