We applied Pythagorean theorem to the triangle with sides a = 7 cm, b = 24 cm, and c = 25 cm and found that it is a right-angled triangle.
Let's take a look at the sides given in the problem: a = 7 cm, b = 24 cm, and c = 25 cm. To determine whether this triangle is a right-angled triangle, we can use the Pythagorean theorem, which states that in a right-angled triangle, the square of the hypotenuse is equal to the sum of the squares of the legs.
In other words, if a² + b² = c², then the triangle is a right-angled triangle. Let's substitute the values given in the problem and check if the equation holds true:
7² + 24² = 49 + 576 = 625 c² = 25² = 625
We can see that a² + b² = c², which means that the triangle with sides a = 7 cm, b = 24 cm, and c = 25 cm is a right-angled triangle.
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Complete Question:
The sides of certain triangles are given below. Determine which of them are right angled triangles.
(i) a = 7 cm, b = 24 cm and c = 25 cm
You decide to save up for a big trip and deposit 1491 in a special vacation account today. If your account earns 5.07% annually, how much will you have available to spend in 6 years? Round to two decimal places (Ex. $0,000.00)
You will have approximately $1929.29 available to spend in 6 years.
To calculate the future value of your deposit after 6 years, we can use the formula for compound interest:
Future Value = Present Value * (1 + Interest Rate)^Time
Plugging in the values:
Present Value (PV) = $1491
Interest Rate = 5.07% = 0.0507
Time = 6 years
Future Value = $1491 * (1 + 0.0507)^6
Calculating the expression:
Future Value = $1491 * (1.0507)^6
Future Value ≈ $1929.29
Therefore, you will have approximately $1929.29 available to spend in 6 years.
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help me please I need the answers can you do it please I need your help if your help I would really appreciate it
y = 5 - 3x Rewrite in y = mx + b form.
Equation Editor The coordinates of points A and B are (−7, 5) and (4, −3), respectively. What is the distance, in units, between the points?
Answer:
√185 = 13.6
Step-by-step explanation:
Distance² = (x' - x)² + (y' - y)²
Distance² = (-7 - 4)² + (5 - -3)² = (-11)² + (8)² = 121 + 64 = 185
Distance = √185
what is the rate of change of y with the respect of x for 25x-4y=50
Answer:
25/4
Step-by-step explanation:
22. The fare for a cab is $3.50 per trip plus $1.25 per
mile. Which describes the cab fare in dollars as a
function of miles traveled?
Ff(x)=3.5x+1.25
G f(x)=3.5x+ 0.125
(H) f(x)= 1.25x + 3.5
f(x)=1.25x + 0.35
The rate of change in the population of birds is given by dp/dt= 0.016P, where t is time, in years. Approximately how many years will it take for the population of birds to increase by 50%? a.25.342 b.31.250 c.43.321 d.93.750
The population of birds to increase by 50% in 31.25 years.
The differential equation for the population of birds is:
dp/dt = 0.016P
where P is the population of birds and t is time in years.
To obtain the time it takes for the population to increase by 50%, we need to solve for t when P increases by 50%.
Let P0 be the initial population of birds, and P1 be the population after the increase of 50%.
Then we have:
P1 = 1.5P0 (since P increases by 50%)
We can solve for t by integrating the differential equation:
dp/P = 0.016 dt
Integrating both sides, we get:
ln(P) = 0.016t + C
where C is the constant of integration.
To obtain the value of C, we can use the initial condition that the population at t=0 is P0:
ln(P0) = C
Substituting this into the previous equation, we get:
ln(P) = 0.016t + ln(P0)
Taking the exponential of both sides, we get
:P = P0 * e^(0.016t)
Now we can substitute P1 = 1.5P0 and solve for t:
1.5P0 = P0 * e^(0.016t
Dividing both sides by P0, we get:
1.5 = e^(0.016t)
Taking the natural logarithm of both sides, we get:
ln(1.5) = 0.016t
Solving for t, we get:
t = ln(1.5)/0.016
Using a calculator, we get:
t ≈ 31.25 years
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MATH QUESTION : As punishment for bad behavior during recess, Mrs. Busywork asked her class to multiply 10 by 1/3 five times. John, however, notices that it is possible to multiply 10 by a single fraction and still get the same answer as the other students. What is this single fraction?
Answer:
5/3
Step-by-step explanation:
5×(10×1/3)
=10×5/3
=since 5×(10×1/3) gives 50/3 so thus 10×5/3.
The fraction is therefore 5/3
A car manufacturer announced that next year the price of a certain model car would increase by 5.5% . This year the price is 19,076. Find the increase and the new price .
Answer
1,049.18 and 20,125.18
Step-by-step explanation:
increase: 19,076*0.055 = 1,049.18
new price: 19,076*1.055 = 20,125.18
What is the height of the cylinder rounded to the nearest tenth? The figure * 1 point is not drawn to scale . V = 284.7 inches cubed
The height of the cylinder is 3.6 inches.
What is the height of the cylinder?We know that the volume of a cylinder of radius R and height H is:
V = pi*R²*H
where pi = 3.14
We know that the radius is R = 5in and the volume is 284.7 inches cubed, replacing that in the formula above we will get:
284.7 in³= 3.14*(5 in)²*H
Solving that for H we will get:
H= (284.7 in³)/ 3.14*(5 in)²
H = 3.6 inches.
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the equation 2x+5=3x+2 represents the cost in dollars, x, of a school lunch.what is the cost of the school lunch?
Answer:
x=$3
Step-by-step explanation:
2x+5=3x+2
-2 from both sides
2x+3=3x
-2x from both sides
3=x
Can someone help on this question from khanademy geometry. Finding the equation for the circle
The equation of the circle graphed in this problem is:
(x - 5)² + y² = 16.
What is the equation of a circle?The equation of a circle of center \((x_0, y_0)\) and radius r is given by:
\((x - x_0)^2 + (y - y_0)^2 = r^2\)
For the circle graphed, we have that:
The center is at point (5,0), hence \(x_0 = 5, y_0 = 0\).The radius is of 4 units.Hence the equation of the circle graphed is:
(x - 5)² + y² = 16.
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In APQR, ZQ = ZP, RP = 13 and PQ = 19. Find the length of QR.
Answer:
13
Step-by-step explanation:
∠Q ≅ ∠ P ⇒ RP = RQ = 13
Round the number 817.0863 to the nearest:
(a) hundreds
(b) hundredths
(C) 3.d.p
(d) 4 s.f
(e) Whole number
Answer:
(a) hundreds = 817
(b) hundredths = 817.09
(c) 3 d.p = 817.086
(d) 4 s.f. = 817.1
(e) whole number = 817
How many lines can be drawn through points J and K?
If α and β are the zeroes of the polynomial ax^2 + bx + c, find the value of α^2 + β^2
Answer:
Step-by-step explanation:
α + β = -b/a
αβ = c/a
α² + β² = (α + β)² - 2αβ
\(= (\frac{-b}{a})^{2}-2\frac{c}{a}\\\\= \frac{b^{2}}{a^{2}}-\frac{2c}{a}\\\\=\frac{b^{2}}{a^{2}}-\frac{2c*a}{a*a}\\\\=\frac{b^{2}-2ca}{a^{2}}\)
PLEASE HELP ME ANSWER THESE QUESTIONS will give BRAINLIEST
1. The numerator of a certain fraction is 3 more than the denominator. If 3/2 is added to the fraction, the result is 4. Find the fraction.
2. If 3/8 is added to five times the reciprocal of a number, the result is 1. Find the number.
3. One car travels 390 miles in the same amount of time it takes a second car traveling 3 miles per hour slower than the first to go 372 miles. What are the speeds of the cars?
9514 1404 393
Answer:
5/2 8 65 mph, 62 mphStep-by-step explanation:
The first two problems can be solved in your head by working backward from the end result.
__
1. After 3/2 is added, the result is 4. Then we must be adding 3/2 to 4 -3/2 = 5/2. We notice that 5/2 already has the numerator 3 more than the denominator, so the fraction of interest is 5/2.
__
2. If 3/8 is added to a number giving a result of 1, the number must be 1 -3/8 = 5/8. That is 5 times 1/8. The number of interest is the reciprocal of 1/8, so is 8.
__
3. Let x represent the speed of the faster car. Then x-3 is the speed of the slower car, and the two times are ...
time = distance/speed
390/x = 372/(x-3)
390(x -3) = 372x . . . cross multiply
18x = 1170 . . . . . . . add 1170-372x
x = 65 . . . . . . . . . . divide by 18
The speeds of the cars are 65 mph and 62 mph.
In ΔLMN, the measure of ∠N=90°, NM = 9, ML = 41, and LN = 40. What is the value of the cosine of ∠L to the nearest hundredth?
The value of the cosine of ∠L in triangle LMN is approximately 0.98 using Pythagorean Theorem.
To find the cosine of ∠L in triangle LMN, we first need to use the Pythagorean theorem to find the length of side LM, since only have the lengths of NM and LN:
\(LM^2 = LN^2 - NM^2\\LM^2 = 40^2 - 9^2\\LM^2 = 1521\)
\(LM = \sqrt{1521}\)
LM = 39
Now that we know the length of all three sides of the triangle, we can use the cosine rule to find the cosine of ∠L:
cos(L) = \((LM^2 + LN^2 - NM^2)\) / (2 x LM x LN)
cos(L) = \((39^2 + 40^2 - 9^2)\) / (2 x 39 x 40)
cos(L) = 0.975
Rounding to nearest hundredth:
cos(L) = 0.98
Therefore, the value of cosine of ∠L in triangle LMN is approximately 0.98.
The ratio of the neighbouring side to the hypotenuse is known as the cosine of an angle in a right triangle. As L is not a straight angle in this situation, its value must be determined using the cosine method. Whether a triangle is a right triangle or not, the cosine rule can be used to relate the lengths of its sides and angles.
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a box contains 10 identical markers (except in colors): 5 black, 3 blue and 2 red. three different markers are selected. find the probability of selecting at least one red marker.
The probability of selecting at least one red marker probability = \(\frac{1}{5}\)
A probability is a number that reflects the chance or likelihood that a particular event will occur. Probabilities can be expressed as proportions that range from 0 to 1, and they can also be expressed as percentages ranging from 0% to 100%.
Given that,
In the box contains ,
Black markers are = 5
Blue markers are = 3
Red markers are = 2
The given scenario will not affect the required probability as the selection of the second one is a case of future.
We need to find the probability of the first marker is red.
The probability is,
Probability = \(\frac{red marker}{total markers}\)
Total markers = 5 + 3 +2
= 10
Probability = \(\frac{2}{10}\)
Probability = \(\frac{1}{5}\)
The probability of selecting at least one red marker probability = \(\frac{1}{5}\)
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I need help on this please
Answer:
only C is a function cause a function has only 1 same value.
1. Sharon used 3 cups of water with
every 2 cups of lemon juice to make
lemonade. Find the ratio of the amount
of lemon juice used to the amount
of water used
Answer:3:2 is the answer i am very sure
Step-by-step explanation:
If a cheetah travels 50 miles per day, how many feet per hour does the cheetah travel?
HELP FAST
26400 is what they travel in feet in a day divide that by 24 and that should be your answer
PLSS HELP ME I WILL DO ANYTHING (Not really) IM STRUGGLING IN MATH RN I CANT FAIL!!
The expressions that accurately represents the area of the entire figure are:
C: (3x)(2x) - x²
D: x(3x) + x(2x)
How to find expressions that accurately represents the area of the entire figure?To find the area of a composite figure, you can break it down into simpler shapes such as triangles, rectangles, circles, etc. and then find the area of each individual shape and add them together.
From the given information:
side length of smaller square = x
area of smaller square = x * x = x²
side length of larger square = 2 * x = 2x
area of larger square = 2x * 2x = 4x²
Total area = area of smaller square + area of larger square
Total area = x² + 4x² = 5x²
Option C:
(3x)(2x) - x² = 6x² - x² = 5x²
Option D:
x(3x) + x(2x) = 3x² + 2x² = 5x²
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An experiment is completed where a coin is flipped and a six-sided die (singular for dice) is rolled. The outcomes from the experiment are shown, where H represents heads and T represents tails. H1, H2, H3, H5, H6, T1, T1, T2, T3, T5. What percent of the outcomes included tails with an off number greater than 1? 1.) 16 2/3% 2.) 25% 3.) 33 1/3% 4.) 41 2/3%
Answer:
1) \(16\frac{2}{3}\)% or 20%
Step-by-step explanation:
Given that:
An experiment which is carried out by flipping a coin and rolling six sided die.
The outcomes can be:
{H1, H2, H3, H5, H6, T1, T1, T2, T3, T5}
As per question statement:
Number of outcomes having tails and an odd number greater than one is 2 (i.e. T3 and T5)
Total number of outcomes here is 10.
Therefore, to find the percentage, we use the following formula:
\(\dfrac{\text{Number of favorable outcomes}}{\text{Total number of outcomes}}\times 100\)
\(\Rightarrow \dfrac{2}{10}\times 100 = 20\%\)
As per question statement, the answer is 20%.
If we consider all the outcomes, i.e.
{H1, H2, H3, H4, H5, H6, T1, T2, T3, T4, T5, T6}
Total number of outcomes = 12
The percentage will come out be :
\(\Rightarrow \dfrac{2}{12}\times 100 = 16\frac{2}{3}\%\)
Two number cubes are rolled. Each number cube is labeled 1 through 6.
What is the probability that both number cubes will land on 1?
Step-by-step explanation:
Probabibility = 1/6 * 1/6 = 1/36 = 2.77%.
Carlos graphed the system of equations that can be used to solve x cubed minus 2 x squared 5 x minus 6 = negative 4 x squared 14 x 12.
The system of equations for x^3 - 2x^2 + 5x - 6 = -4x^2 + 14x + 12.
Carlos graphed the system of equations that can be used to solve the equation x^3 - 2x^2 + 5x - 6 = -4x^2 + 14x + 12.
To graph this system of equations, we need to set the equation equal to zero. So, the equation becomes:
x^3 - 2x^2 + 5x - 6 + 4x^2 - 14x - 12 = 0
Combining like terms, we get:
x^3 + 2x^2 - 9x - 18 = 0
To graph this equation, you can use a graphing calculator or plot points manually. Here are the steps to manually plot the graph:
1. Choose a range for x, for example, from -5 to 5.
2. Pick a few values for x within the chosen range and substitute them into the equation to find the corresponding y-values.
3. Plot the points (x, y) on a coordinate plane.
4. Connect the plotted points to create a smooth curve.
By following these steps, you can graph the system of equations for x^3 - 2x^2 + 5x - 6 = -4x^2 + 14x + 12.
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2+17x
i need help i can not find the answer
Answer:
this question is not factorable with rational number so either trick question and the answer is no solution or it is typed wrong
Step-by-step explanation:
Harp seals spend much of their time swimming and diving in the icy waters of the Arctic ocean. if 86 seals dove for a combined total depth of 10,578 meters, how many meters each seal dive
pls help ASAP its literally 12:00 where i live
Answer: 122.81
Step-by-step explanation:
If 86 seals dove for a combined total depth of 10,578 meters, each seal would have dove an average of 122.81 meters (10,578 meters / 86 seals)
\(10578 \div 86 = 122.81\)
You hang two strands of decorative lights.
a strand of red and blue decorative lights a strand of yellow and green decorative lights
Strand 1: changes color every 16 seconds Strand 2: changes color every 28 seconds
Both strands just changed color. After how many seconds will the strands change color at the same time again?
The strands will change color at the same time again after
seconds.
Both the decorative light strands will change change the colors at the same time again after 448 seconds
In the above question, it is given that,
Two strands of decorative lights, red and blue is one strand and green and yellow is another are hanged
Strand one changes colors in = 16 seconds
Strand two changes colors in = 28 seconds
We need to find, after how many seconds will the strands change color at the same time again
To find this, we will take the LCM(Lowest Common Multiple) of both strands time
Factors of 16 = 2 x 2 x 2 x 2
Factors of 28 = 2 x 2 x 7
LCM( 16 and 28) = 2 x 2 x 2 x 2 x 2 x 2 x 7 = 448
Therefore, It can be concluded that, both the decorative light strands will change change the colors at the same time again after 448 seconds
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Which is the graph of y=3/4x-3
Graph A
Graph B
Graph C.
Answer:
Graph A
Step-by-step explanation:
I had this question in my class and got it right with answer A :')