Quadrant II
Or the top left
Answer:
(-1,3) lies in the 2nd quadrant.
Explanation:
Hope you're having a splendiferous day!
Find the measure of angle KLM (circle)
\( \textsf{Angle made by the Semicircle (or) arc subduing} \) \( \textsf{the diameter makes a right angle on the circle. }\)
\( \textsf{Therefore, the angle KLM in the shown figure} \) \( \textsf{will be equal to : } \)
\(\qquad\displaystyle \tt \dashrightarrow \: 90 \degree\)
A 9 footbpiece of twine costs $8.64. What is the price per inch?
Answer: 0.08 dollars
Step-by-step explanation:
8.64 divided by 9 = 0.96
0.96 divided by 12 = 0.08
A parachutist whose mass is 100kg drops from a helicopter hovering 3000m above the ground and falls undert the influence of gravity. Assume that the force due to air resistance is proportional to the velocity of the parachutist, with the proportionality constant k1=20kg/s when the chute is closed and k2=100kg/s when the chute is open. If the chute does not open until 30 seconds after the parachutist leaves the helicopter, after how many seconds will they reach the ground? If the chute does not open until 1 minute after the parachutist leaves the helicopter, after how many seconds will they reach the ground?
If the chute does not open until 30 seconds after the parachutist leaves the helicopter, the parachutist will reach the ground in 52.7 seconds whereas If the chute does not open until 1 minute it will reach the ground in 70.3 seconds.
To solve this problem we will be using the equation of motion, which states that the distance the parachutist has traveled is ut+1/2at^2, where u is the initial velocity, a is the acceleration and t is the time taken since the acceleration of the parachutist is the force due to gravity m which 9.8 m/s2 minus the air resistance, which is proportional to the velocity of the parachutist which is 20 kg/s when the chute is closed and 100 kg/s when the chute is open.
for the first case the chute doesn't open until 30 seconds after the parachutist leaves the helicopter, the equation can be rearranged to solve for the time. Substituting the know values the mass, the initial velocity, and the acceleration due to gravity and the air resistance (9.8 m/s2 - 20 kg/s) gives us the time 52.7 seconds
Similarly, for the second case, the chute doesn't open until 1 minute, here substituting the values for mass (100 kg), acceleration due to gravity and air resistance((9.8 m/s2 - 100 kg/s), and the initial velocity(0 m/s), which gives us the time 70.3 seconds
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A gardener would like to keep animals out of his rectangular garden by putting up a fence. Find how much fencing is needed to enclose the garden if its dimensions are 82 feet by 91 feet. (8 marks)
Please help me! I really need to pass!
the area of a square is seasonal 25 cm Square calculate the length of a diagonal to one decimal place .
Answer:
The answer is 7.1cm to 1d.p
Step-by-step explanation:
Area of square =L²
25=L²
√L²=√25
L=5cm
hyp²=opp²+adj²
x²=5²+5²
x²=25+25
x²=50
√x²=√50
x=7.1cm to 1d.p
please help
the height ( in cm) of 12 players of a team are as follows : 160,150,158,159,160,160,162,165,166,167,170,175 find the median height of the team.
Answer:
Step-by-step explanation:
160,150,158,159,160,160,162,165,166,167,170,175
Write the 12 numbers in ascending order:
150, 158, 159, 160, 160, 160, 162, 165, 166, 167, 170, 175
We need the middle number but there is no middle number:
150, 158, 159, 160, 160, 160, 162, 165, 166, 167, 170, 175
We have split the numbers into 2 even amounts and there is no number in the middle so we take the middle 2 number and find there average:
150, 158, 159, 160, 160, 160, 162, 165, 166, 167, 170, 175
Average of 160 and 162 \(=\frac{160+162}{2} =161\).
SOLUTION: Median is 161cm.
If you were to cover a pizza with cheese, how much area, rounded to the nearest whole number, would you need to cover with cheese if the pizza had a circumference of 31.4 inches?
Answer:
79 square inches
Step-by-step explanation:
First, let's find the diameter given the circumference.
\(C=\pi d\) \(d=\frac{C}{\pi }\) \(d= 31.4/3.14\) \(d=10\)Next, we know the the radius is half the diameter, so the radius is 5 inches. Now, we can solve the area of the circle.
\(3.14 * 5^2\) \(3.14 * 25\) \(78.5\) 78.5 ≈ 79 square inchesTherefore, the answer is 79 square inches.
Write the ratio for sin A.
sin A =
(Type an integer or a simplified fraction.)
The calculated ratio for the sine the angle A has its value to be 8/17
Writing the ratio for sin A.The ratio for sine of an angle is defined as the ratio of the length of the side opposite the angle to the length of the hypotenuse in a right triangle.
This ratio is commonly denoted as sin(θ), where θ is the angle of interest.
Mathematically, we can express this as:
sin(θ) = opposite / hypotenuse
Using the above, we have
opposite = 8
hypotenuse = 17
So, we have
sin(A) = 8/17
Hence, the ratio is 8/17
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What is the value of 15 + x2 when the value of x is 3
Answer:
21
Step-by-step explanation:
15 + (3)2
15 + 6
21
Answer:
24
Step-by-step explanation:
15+x2
= 15 + (3x3)
= 15 + 9
= 24
With your team, create a piecewise-defined function with at least three “pieces.” The function does not need to be a step-function with horizontal line segments, but it needs to meet the definition of a function. Make a table and a graph for your function, and write an equation for each part. Be sure to state the domain for each part, as well as the domain for the whole function.
On solving the provided question we can say that The following is the data table of the function.
what is function?The subject of mathematics includes quantities and their variations, equations and related structures, shapes and their locations, and places where they can be found. The term "function" refers to the relationship between a set of inputs, each of which has an associated output. A connection between inputs and outputs in which each input leads to a single, distinct result is known as a function. Each function is given a domain and a codomain, or scope. Usually, f is used to denote functions (x). input is an x. There are four main types of functions accessible. based on the following factors: on functions, one-to-one functions, many-to-one functions, inside functions, and on functions.
here,
the provided functions that can be formed are
x -infinity < x < -10
f(x) = 2x + 10 -10 < x < 10
4X - 10 10 < x < infinty
The following is the data table of the function.
x y
-20 -20
-15 -15
-10 -10
-5 0
0 10
5 20
10 30
15 50
20 70
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An example of the piecewise defined function is: \(f(x)= \begin{cases}x & -\infty < x \leq-10 \\ 2 x+10 & -10 < x \leq 10 \\ 4 x-10 & 10 < x < \infty\end{cases}\)
what is function?The subject of mathematics includes quantities and their variations, equations and related structures, shapes and their locations, and places where they can be found. The term "function" refers to the relationship between a set of inputs, each of which has an associated output.
A connection between inputs and outputs in which each input leads to a single, distinct result is known as a function. Each function is given a domain and a codomain, or range.
Usually, f is used to denote functions (x). input is an x. There are four main types of functions accessible. based on the following factors: on functions, one-to-one functions, many-to-one functions, inside functions, and on functions.
The following is the data table of the function.
x y
-20 -20
-15 -15
-10 -10
-5 0
0 10
5 20
10 30
15 50
20 70
The provided functions that can be formed are
\(f(x)= \begin{cases}x & -\infty < x \leq-10 \\ 2 x+10 & -10 < x \leq 10 \\ 4 x-10 & 10 < x < \infty\end{cases}\)
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In ΔKLM, l = 2.4 inches, m = 4.2 inches and ∠K=159°. Find the length of k, to the nearest 10th of an inch
Answer:
sorry
Step-by-step explanation:
Given the circle below with secants JKL and NML, find the length of JK. Round to the nearest tenth if necessary.
Using the Intersecting secants theorem, the length of JK in the given diagram is 17
Intersecting secants theorem: Calculating the length of of JKFrom the question, we are to determine the length of JK in the given diagram.
The diagram shows a circle with intersecting secants.
From the Intersecting secants theorem which states that "if two secant segments are drawn to a circle from an exterior point, then the product of the measures of one secant segment and its external secant segment is equal to the product of the measures of the other secant segment and its external secant segment".
Then,
We can write that
JK × KL = NM × ML
From the given diagram,
KL = 14
NM = 14
ML = 17
Substituting the values
JK × 14 = 14 × 17
JK = (14 × 17) / 14
JK = 17
Hence, the length of JK is 17
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6 Question 5 (5 points) Two masses, m and M. are placed along x-axis at a and b, respectively. Find the center of mass for the system (x, y). 9 (a+b)/2,0 12 0. (a+b)/2 15 O (am+bM)/2,0 (am+bM)/(m+M), O 18 O, (am+bM)/(m+M)
The center of mass for the system (x, y) is \(\left(\frac{a m+b M}{m+M}, 0\right)\).
What is center of mass?
The unique location where the weighted relative position of the scattered mass adds to zero is known as the center of mass in physics. Here is where a force may be applied to produce a linear acceleration without also producing an angular acceleration.
The center of mass is a position defined relative to an object or system of objects. It is the average position of all the parts of the system, weighted according to their masses.
Centre of mass is
\(x=\frac{m a+M b}{m+M}\)
and y=0
\((x, y)=\left(\frac{a m+b M}{m+M}, 0\right)\)
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Let W be the set of all points in R2 of the form (3,2 + 5t). Determine
if W is a subspace of R2.
Answer:
Sorry, I don't know how to calculate your input.
Step-by-step explanation:
Sorry, I don't know how to calculate your input.
How many centiliters are in 0.00005 liters?
0.00005 L = [?] cL in standard form.
The number of centilitres which is equivalent to 0.00005 liters as required to be expressed in standard form is; 5 × 10-² cL.
What is the number of centilitres in 0.00005 litres?Recall that; it follows from metric systems that;
100 centilitres = 1 litres.
On this note, it follows from proportion that the number of centilitres present in 0.00005 litres as required is;
= 0.00005 × 100 centilitres
= 0.005 centilitres.
Ultimately, when expressed in standard form, it follows that the number of centilitres in 0.00005 liters is; 5 × 10-² cL.
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ILL GIVE U BRAINLIST OR WHATEVER
The nationwide percentage of Americans who invest in the stock market is usually taken to be 55%. Is this percentage different in Georgia? A survey and analysis among Georgia residents led to a test statistic of 1.75.
(b) What is the p-value to test if the proportion of Georgians who invest in the stock market is different than the nationwide average? (Use 4 decimals.)
Okay, here are the steps to find the p-value:
1) The nationwide proportion of Americans who invest in the stock market is 55% (0.55)
2) The test statistic for Georgia is 1.75
3) To calculate the p-value, we need to know the degrees of freedom (df) and the critical value of the test statistic.
4) The df = 1, since we're comparing a single proportion (Georgia) to a fixed value (national average).
5) The critical value at df = 1 and 95% confidence is 3.84 (for a two-tailed test)
6) Since the test statistic of 1.75 is less than 3.84, we look up 1.75 in tables to find the p-value.
7) For a test statistic of 1.75 and df = 1, the p-value is 0.1860.
So the p-value to test if the proportion of Georgians who invest in the stock market is different than the nationwide average is 0.1860.
Let me know if you have any other questions!
Okay, here are the steps to find the p-value:
1) The nationwide proportion of Americans who invest in the stock market is 55% (0.55)
2) The test statistic for Georgia is 1.75
3) To calculate the p-value, we need to know the degrees of freedom (df) and the critical value of the test statistic.
4) The df = 1, since we're comparing a single proportion (Georgia) to a fixed value (national average).
5) The critical value at df = 1 and 95% confidence is 3.84 (for a two-tailed test)
6) Since the test statistic of 1.75 is less than 3.84, we look up 1.75 in tables to find the p-value.
7) For a test statistic of 1.75 and df = 1, the p-value is 0.1860.
So the p-value to test if the proportion of Georgians who invest in the stock market is different than the nationwide average is 0.1860.
Let me know if you have any other questions!
Evaluate the given expression for x=5
x² + 3x - 2
(5)² + 3 × 5- 2
25 + 15 - 2
40 - 2
38...
Can someone answer thx
Answer:
B.
Step-by-step explanation:
=3.3999
What is the area of xyz pleae help?
Step-by-step explanation:
here's the answer to your question
Answer:
A = 14 in²
Step-by-step explanation:
The area (A) of the triangle is calculated as
A = \(\frac{1}{2}\) bh ( b is the base and h the perpendicular height )
Here b = 7 and h = 4 , then
A = \(\frac{1}{2}\) × 7 × 4 = \(\frac{1}{2}\) × 28 = 14 in²
Please awnser asap I will brainlist
They can buy 120 vans, 60 small trucks, and 80 large trucks.
How to find the number of van, small trucks and large truck needed?The truck company plans to spend 10 million on 260 vehicles. Each commercial van cost 25,000 dollars. Each small truck 50,000 dollars and each large truck 50,000 dollars. They needed twice as many van as small truck
Therefore,
let
s = number of small truck
number of van = v
let
l = number of large truck
v + s + l = 260
25,000(v) + 50,000(s) + 50,000(l) = 10,000, 000
v + 2s + 2l = 400
Hence,
v = 2s
So,
2s + 2s + 2l = 400
4s + 2l = 400
2s + s + l = 260
3s + l = 260
2s + l = 200
s = 60
l = 200 - 2(60)
l = 200 - 120
l = 80
v = 2(600 = 120
Therefore, they can buy the following:
number of small truck = 60
number of van = 120
number of large truck = 80
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The resistance R of a wire varies directly as its length L and inversely as the square of its diameter d. (a) Write an equation that expresses this joint variation. (Use k for the constant of proportionality.) R=kL (b) Find the constant of proportionality if a wire 1.4 m long and 0.005 m in diameter has a resistance of 150 ohms. (Round your answer to six decimal places.) k = (c) Find the resistance of a wire made of the same material that is 4 m long and has a diameter of 0.008 m. (Round your answer to the nearest whole number.) R = ohms (d) If the diameter is doubled and the length is tripled, by what factor is the resistance changed? Submit Answer Practice Another Version
a) R=kL/d² is an equation that expresses this joint variation.
b) The constant of proportionality if a wire 1.4 m long and 0.005 m in diameter has a resistance of 150 ohms is 1/560.
c) The resistance of a wire made of the same material that is 4 m long and has a diameter of 0.008 m is 111.60 ohms.
d) If the diameter is doubled and the length is tripled, by 3/4 factor the resistance changed.
a) The equation that expresses this joint variation is R=kL/d²
Since R is directly proportional to L and inversely proportional to d².
Then the equation of variation is:
R=kL/d² Where k is constant
L is the Length and d is the diameter.
b) To find the constant of proportionality set R=100 ohms, L=1.4m, d=0.005m in the equation
100=k(1.4)/(0.005)²
100=56000 k
k=100/56000
k=1/560
c) R = 4(1/560)/0.008².
R=0.0071428/0.000064
R=111.60ohms
d) R = kL/d²
R = (1/560) × (3L)/(2d)² = (1/560) × 3L/ 4d²
R=(3/4) × (1/560) × L/d²
The resistance is changed by a factor of 3/4
So doubling the diameter and tripling the length causes reduces the resistance to 3/4 of the normal.
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HELP PLEASE WILL MARK BRAINLIEST
Answer:
D
Step-by-step explanation:
Point B is (-2,3) then it is shifted (x, y+4)
so, x remains the same by y goes up 4 units
-2,7
Factor Completely
24+27v
12. A, B and C are consecutive natural numbers. If 2/7 of the reciprocal of A is equal to ⅓ of the reciprocal of C, find B.
===================================================
Explanation:
The set of natural numbers is {1,2,3,4,...} aka the set of positive whole numbers.
Consecutive natural numbers follow one right after another, like with that example above or something like 7,8,9,...
Since B follows right after A, this means B = A+1. Similarly, C = B+1 = (A+1)+1 = A+2 because C follows right after B.
So we have
A = some unknown natural numberB = A+1C = A+2In other words, we have the sequence A,A+1,A+2 to replace the sequence A,B,C in that order.
-----------------------
The reciprocal of A is 1/A. Taking 2/7 of this gets us 2/(7A). This result is equal to 1/3 of the reciprocal of C, so,
2/(7A) = 1/3 of 1/C
2/(7A) = 1/(3C)
2/(7A) = 1/(3(A+2))
2/(7A) = 1/(3A+6)
------------------------
Let's cross multiply and solve for A
2/(7A) = 1/(3A+6)
2(3A+6) = 7A*1
6A+12 = 7A
12 = 7A-6A
12 = A
A = 12
Therefore, B = A+1 = 12+1 = 13 and C = A+2 = 12+2 = 14
The sequence A,B,C updates to 12,13,14.
------------------------
Check:
A = 12
reciprocal of A = 1/A = 1/12
D = 2/7 of reciprocal of A = (2/7)*(1/12) = 2/84 = 1/42
C = 14
reciprocal of C = 1/C = 1/14
E = 1/3 of the reciprocal of C = (1/3)*(1/14) = 1/42
Items D and E are equal, so it confirms we have the correct answer.
Luigi cannot decide which store he should buy a TV from. The original price of the TV is $380. Best buy marked down the TV by 50%. Walmart marked down the TV by 30% with an additional 20% off. Which store should Luigi buy from and why?
Answer:
• Best Buy
,• Their selling price is lower
Explanation:
The original price of the TV = $380.
BestBuy
If Best buy marked down the TV by 50%
Then the selling price of the TV will be:
\(\begin{gathered} =380-\mleft(50\mright.\%\text{ of 380)} \\ =380(1-50\%)=380(1-\frac{50}{100}) \\ =380(1-0.5) \\ =0.5\times380 \\ =\$190 \end{gathered}\)The selling price at BestBuy will be $190.
Walmart
Walmart marked down the TV by 30%
\(\begin{gathered} =380-\mleft(30\mright.\%\text{ of 380)} \\ =380(1-30\%) \\ =380(1-0.3) \\ =0.7\times380 \\ =\$266 \end{gathered}\)There was also an additional 20% off.
\(\begin{gathered} =266-\mleft(20\mright.\%\text{ of 266)} \\ =266(1-20\%) \\ =266(1-0.2) \\ =0.8\times266 \\ =\$212.80 \end{gathered}\)The selling price at Walmart is $212.80
Therefore, Luigi should buy from BestBuy since they have a lower selling price of $190.
Samantha has a solid with a certain density. She knows the mass of the solid is 170 grams and the volume of the object is 20 cubic centimeters. When she calculates the density of the solid, what units should Samantha use?
Answer:
Step-by-step explanation:
Comment
The formula for density is D = m/V
the units of mass are gramsThe units of volume is cm^3Therefore the units of density is
Density = grams/cm^3
Write an expression for the sequence of operations described below.
raise 3 to the 9th power, then add the result to j
Do not simplify any part of the expression.
An expression for given sequence of operations is: j + 3^9
In this question, we need to write an expression for the sequence of operations described below.
raise 3 to the 9th power, then add the result to j
Consider the part of given statement,
raise 3 to the 9th power
We write this as: 3^9
then we add this result to j.
So, we get an expression: 3^9 + j
Therefore, an expression for given sequence of operations is: j + 3^9
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A recipe requires 1 /3 cup of milk for each 1⁄4 cup of water. How many cups of water are needed for each cup of milk (1 cup of milk)?
Answer:
3/4 cups of water
Step-by-step explanation:
If there are 1/3 cup of milk for 1/4 cup water that means that if you make the denominator the same which would make 4/12 cup milk and 3/12 cup of water and add 3/12 +3/12+3/12 you get 9/12 which is 3/4 cups. adding 3/12 three times because it is 1/3 cup milk.
A quadratic function has a vertex at (3, -10) and passes through the point (0, 8). Which of the following equations best represents the function? O y = 2(x+3)² +8 O y = 2(x+3)² – 10 Oy=(x-3)²-10 O y = 2(x-3)² – 10
\(~~~~~~\textit{vertical parabola vertex form} \\\\ y=a(x- h)^2+ k\qquad \begin{cases} \stackrel{vertex}{(h,k)}\\\\ \stackrel{a~is~negative}{op ens~\cap}\qquad \stackrel{a~is~positive}{op ens~\cup} \end{cases} \\\\[-0.35em] ~\dotfill\)
\(\begin{cases} h=3\\ k=-10\\ \end{cases}\implies y=a(~~x-3~~)^2 + (-10)\hspace{4em}\textit{we also know that} \begin{cases} x=0\\ y=8 \end{cases} \\\\\\ 8=a(~~0-3~~)^2 + (-10)\implies 8=9a-10\implies 18=9a\implies \cfrac{18}{9}=a \\\\\\ 2=a\hspace{7em}y=2(~~x-3~~)^2 + (-10)\implies \boxed{y=2(x-3)^2-10}\)
Find the median for this list of numbers 72 98 94 63 100 89 65 90 23 64 83 47 58 32 48 Median =
The median requires that we type the numbers in ordered form:
23, 32, 47, 48, 58, 63, 64, 65, 72, 83, 89, 90, 94, 98, 100
therefore, the median is: 65
which is the point that has to the left as many other elements as it has to the right.
Could you please try the answer in your computer?