Answer:
strong negative correlation
Step-by-step explanation:
A circle has a radius of 9 cm.
When written in terms of pi, how many times greater is the area than the circumference?
Answer:b
Step-by-step explanation:
If circle has a radius of 9 cm then the area is 4.5 times greater than the circumference, Option C is correct.
What is Circle?A circle is a shape consisting of all points in a plane that are at a given distance from a given point, the centre.
The formula for the circumference of a circle is:
C = 2πr
where r is the radius of the circle.
Substituting the value r = 9 cm, we get:
C = 2π(9) = 18π cm
The formula for the area of a circle is:
A = πr²
Substituting the value r = 9 cm, we get:
A = π(9)²= 81π cm²
To find how many times greater the area is than the circumference, we can divide the area by the circumference:
Area/Circumference = (πr²)/(2πr) = r/2
Substituting the value r = 9 cm, we get:
Area/Circumference = 9/2
=4.5
Therefore, the area is 4.5 times greater than the circumference, Option C is correct.
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The standard equation for the position s of a body moving with a constant acceleration a along a coordinate line is s = a/2 t^2 + v_0 t + s_0, where v_0 and s_0 are the body’s velocity and position at time t = 0. Derive this equation by solving the initial value problem Differential equation: d^2s/dt^2 = a Initial conditions: ds/dt = v_0 and s = s_0 when t = 0.
The standard equation for the position s of a body moving with a constant acceleration a along a coordinate line is proved below.
In statistics, the term equation refers the combination of variable and numbers.
Here we have to prove the the standard equation for the position s of a body moving with a constant acceleration a along a coordinate line.
While we looking into the given question, we have given the function
Here we are given that dt²/d²s = a (a constant), and when t=0,
dt/ds = v₀
and s = s₀.
And we need to show that s=a/2t²+v₀t+s₀.
While we differentiate the equation , then we get,
=> dt²/d²s = a
=> ds/dt = ∫a dt
=> ds/dt = at + c
Since ds / dt = v₀ when t = 0, we have
=> a(0) + C= C
Again we have to take the differentiation on the term, then we get,
=> s = ∫(at+v0)dt = a/2t²+v₀t+s₀.
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50,000 ÷ 10 to power of 3
Answer:
50,000,000
Step-by-step explanation:
10 x 10 x 10 = 1,000
1,000 x 50,000 = 50,000,000
What are the outputs of the function below?
-6, -3, 1, 5
-6, -3, 4, 6
-8, 2, 4, 6
-8, 2, 1, 5
Answer:
\(5 { \times 54}^{2} \)
What is the answer for number 12
How many cups are in 1 1/4 gallons?
Answer:
44
Step-by-step explanation:
11/4 gallons = 2.75 gallons there are 16 cups in a gallon that men's there's 32 cups for 2 gallons and 12 cups for .75 gallons 32+12=44 cups
Which solid figures do NOT have a vertex or vertices? (Check all that apply.)
cylinders
cones
prisms
pyramids
Answer: Cylinders and Cones don't have a vertex or vertices.
Step-by-step explanation: I had the same question and got it right.
Have a good day! <3
1. Find the value of x and y when,
a) (x 2y) = (5 6)
The value of x and y are 5 and 3 respectively.
How to find coordinates?The value of x and y when (x , 2y) = (5, 6) can be found as follows:
Therefore, the x coordinates of the graph is given as 5 while the double of y coordinates is equals to 6. Then, we have to equate the values as follows:
x = 5
2y = 6
The value of x is known by mere equating.
Hence, let's find the value of y.
2y = 6
divide both sides of the equation by 2
2y / 2 = 6 / 2
y = 3
Therefore, the value of y = 3 and x = 5.
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if you take away 25 from a number you will be left with two and halftimes 30. what is the number?
Solve for x by finding the missing side of the triangle. Round your answer to the
nearest tenth.
12
28
х
Answer:
x ≈ 10.6
Step-by-step explanation:
The hypotenuse and the side adjacent to the angle are the ones marked on the diagram. The relation with the angle is ...
Cos = Adjacent/Hypotenuse
cos(28°) = x/12 . . . . . . . . . use the given values
x = 12·cos(28°) ≈ 10.6 . . . multiply by 12
4(1-x)<16 solve and graph
Answer: (x > -3).
Step-by-step explanation:
To solve the inequality 4(1 - x) < 16, we will simplify and solve for x:
4(1 - x) < 16
Distribute the 4:
4 - 4x < 16
Subtract 4 from both sides:
-4x < 12
Divide both sides by -4. Note that when dividing by a negative number, the inequality sign flips:
x > -3
The solution to the inequality is x > -3. This means that x must be greater than -3 for the inequality to hold true.
To graph the solution on a number line, we mark a shaded region to the right of -3, indicating that all values greater than -3 satisfy the inequality:
The open circle at -3 indicates that -3 is not included in the solution since the inequality is strict (x > -3).
here's the graph for 4(1-x)<16
Triangle DEF has vertices D(1,1), E(2,0), and F(0,4). It is transformed by a rotation 180 degrees about the origin followed by a dilation with a scale factor of 3. Find the coordinates of the vertices of triangle D”E”F”.
Check the picture below.
If the ratio of boys to girls at the school is 2:5 and there are 40 boys how many girls are there?
Answer:
100 girls
Step-by-step explanation:
The ratio of boys : girls is 2 : 5.
In other words, boys are 2 parts of the school while girls are 5 parts of the school.
Since there are 40 boys, 2 parts of the school is 40. Thus:
\(2p = 40\\p = 20\)
1 part is 20.
Since there are 5 parts girls, there are
\(5p = 5*20 = 100\)
100 girls.
Answer: 100 girls
The total number of students in school is 140 and number of girls at the school is equal to 100.
What do you mean by ratio ?
Ratio is the quantitative relationship between two values indicating how frequently one value contains or is contained within the other.
It is given that the ratio of boys to girls at the school is 2:5.
Let's assume the total number of students in school is x.
We now need to find the number of girls in the school but before that we must try to find the total number of students in the school.
Sum of ratios = 2 + 5 = 7
It is given that there are 40 boys in students.
2/7 of the total number of students are boys.
i.e., the expression can be written as :
2x / 7 = 40
2x = 40 × 7
2x = 280
x = 140
The total number of students in school is 140.
So , the number of girls in school is :
= 140 - 40
= 100
There are 100 girls in the school.
Therefore , the total number of students in school is 140 and number of girls at the school is equal to 100.
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Use the graph below to find the following:
A) what is the slope of the line?
B) what is the y intercept of the line?
C) what is the equation of the line in slope intercept form?
what are product rule
The rule may be extended or generalized to products of three or more functions, to a rule for higher-order derivatives of a product, and to other contexts.
What is the average daily temperature for all ten years?
49.6
50.8
52.4
53.6
Answer:
51.6
Step-by-step explanation:
Add them together and divide by 4
Answer: it would be D. 53.6
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Evaluate the Piecewise Function. Please Hurry
The value of piecewise function at x = -1 is f(-1) = 11, and the value of piecewise function at x = 9 is f(9) = 1.
what is piecewise function?
A piecewise-defined function in mathematics is one that is composed of several smaller functions, each of which has a specific interval of the domain it applies to. Instead of being a property of the function itself, piecewise definition is a way to express the function.
We have to evaluate the piecewise function for x = -1 and x = 9.
Let, function has value for x = -1 in the domain x ≤ 5 which is 11.
And function has value for x = 9 in the domain 6 < x which is 1.
⇒ f(-1) = 11 and f(9) = 1
Hence, the value of piecewise function at x = -1 is f(-1) = 11, and the value of piecewise function at x = 9 is f(9) = 1.
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the perimeter of a rectangular pool is 304 m. if the length of the pool is 81 m, what is its width?
Answer:
perimeter=2(L+W)
304=2(81+W)
Step-by-step explanation:
304=162+2W.2W=304-162.2W=142\2=71
The cone shown below has a circular base with a diameter of 16 meters. 16 meters I meters What is the volume of the cone? Use 3.14.
A 301.44 cubic meters
B 602.88 cubic meters
C 150.72 cubic meters
D 452.16 cubic meters
Answer:
b 602.88
Step-by-step explanation:
Jayden is filling his 290 gallon pool with a garden hose. The garden hose produces 29 gallons of water per hour. How long will it take for Jayden to fill up his pool?
Answer:
10 hours
Step-by-step explanation:
290 divided by 29 = 10
check to see if its correct 29 multiple by 10 is 290
Whats 1 + 1 please i need help, im taking a test
Answer:
I am sure it's 2
Step-by-step explanation:
Source: Trust me bro
Answer:
The answer is 2 because 1 plus 1 is like having 2 things
The average time between accidents in a factory is 16 weeks. Find the probability that more than 21 weeks pass between accidents.
Answer:
P(x>21) = 0.2691 (Approx)
Step-by-step explanation:
Given:
Average accident = 16 week
Find:
Probability [more than 21 weeks pass]
Computation:
Exponential [λ] = 1/mean
λ = 1/16
P(x>21) = e^{-λx}
P(x>21) = e^{-(1/16)22}
P(x>21) = 0.2691 (Approx)
what is 15/27 in a decimal?
Answer:
0.55555
Step-by-step explanation:
the 5 keeps repeating
\( \sqrt{20} \times \sqrt{15} \times \sqrt{3} \)
can you help me solve it
A person places $48800 in an investment account earning an annual rate of 3.1%,
compounded continuously. Using the formula V = Pert, where Vis the value of the
account in t years, P is the principal initially invested, e is the base of a natural
logarithm, and r is the rate of interest, determine the amount of money, to the
nearest cent, in the account after 13 years.
When a person places $48,800 in an investment account at an annual rate of 3.1% compounded continuously, using the formula, V = \(Pe^rt\), the amount of money (future value) after 13 years is $73,019.78.
What is compounding?Compounding refers to the process or interest system that computes periodic or continuous interest on both the principal and accumulated interest.
We can solve for the future value of an investment under continuous compounding using an online finance calculator as follows:
Using the formula V = \(Pe^rt\)
Principal (P) = $48,800.00
Annual Rate (R) = 3.1%
Compound (n) = Compounding Continuously
Time (t in years) = 13 years
Result:
V = $73,019.78
V = P + I where
P (principal) = $48,800.00
I (interest) = $24,219.78
Calculation Steps:
First, convert R as a percent to r as a decimal
r = R/100
r = 3.1/100
r = 0.031 rate per year,
Solving the equation for V:
V = \(Pe^rt\)
V = \(48,800.00(2.71828)^(0.031)(13)\)
V = $73,019.78
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The 100 United States Senators in the 114th Congress, January 2015, included 80 men and 20 women. Suppose 26 of the men and 15 of the women have expressed interested in joining a subcommittee to work on legislation about wage discrimination by gender. In how many ways could a 6 person committee be selected to contain equal numbers of men and women.
Answer:
The committee can be selected in 1,183,000 ways to contain equal numbers of men and women.
Step-by-step explanation:
The order in which the people are chosen is not important, which means that the combinations formula is used to solve this question.
Combinations formula:
\(C_{n,x}\) is the number of different combinations of x objects from a set of n elements, given by the following formula.
\(C_{n,x} = \frac{n!}{x!(n-x)!}\)
In how many ways could a 6 person committee be selected to contain equal numbers of men and women.
3 men from a set of 26
3 women from a set of 15. So
\(T = C_{26,3}*C_{15,3} = \frac{26!}{3!23!}*\frac{15!}{3!12!} = 2600*455 = 1183000\)
The committee can be selected in 1,183,000 ways to contain equal numbers of men and women.
StartFraction 32 Over 8 EndFraction = StartFraction 28 Over x EndFraction
a.
x = 4
c.
x = 8
b.
x = 28
d.
x = 7
Answer:
d. x = 7
Step-by-step explanation:
\(\frac{32}{8} = \frac{28}{x}\)
Cross multiply, the denominator "8" is multiplied by numerator "28", while the numerator "32" is multiplied by denominator "x":
8 * 28 = 224
32 * x = 32x
\(32x = 224\)
Divide both sides by 32:
\(\frac{32}{32} = \frac{224}{32}\)
[x = 7]
Which numbers are less than
-8/3 Select all that apply.
A. -2.6 (repeating)
B.-2.76
C.-2 1/4
D. -11/4
E. -2
Answer:
B. and D.
Step-by-step explanation:
Answer:
b and d
Step-by-step explanation:
PLSSS HELPPPPPPP I GIVE BRAINIEST
Answer:
A.
Step-by-step explanation:
correct answer is
\(y=100*(0.91)^x.\)
if to compare the values of the y, (0;100), (1;91), (2;82.81), (3; 75.3571), then
75.3571/82.81=82.81/91=91/100=0.91, it means the next value is decreased at 9%.
Caculate.
2 1/4÷(3/8÷1/2)
let's firstly convert the mixed fraction to improper fraction and proceed from there.
\(\stackrel{mixed}{2\frac{1}{4}}\implies \cfrac{2\cdot 4+1}{4}\implies \stackrel{improper}{\cfrac{9}{4}} \\\\[-0.35em] ~\dotfill\\\\ \cfrac{9}{4}\div \left(\cfrac{3}{8}\div \cfrac{1}{2} \right)\implies \cfrac{9}{4}\div \left(\cfrac{3}{8}\cdot \cfrac{2}{1} \right)\implies \cfrac{9}{4}\div \left(\cfrac{3}{4} \right) \\\\\\ \cfrac{9}{4}\cdot \left(\cfrac{4}{3} \right)\implies \cfrac{9}{3}\cdot \cfrac{4}{4}\implies 3\cdot 1\implies \text{\LARGE 3}\)