Answer:
A.
Step-by-step explanation:
Diameter = 4.4 cm
Radius = 2.2 cm
Now
Area of the circle = πr²
= (3.14)(2.2)²
= (3.14)(4.84)
= 15.1976 cm²
Answer:
A.
Step-by-step explanation:
D=4.4, therefore, the Radius is equal to 2.2, half of the diameter.
The formula for Area:
A=pir^2.
A=(3.14)(2.2)^2
A=(3.14)(4.84)
A=15.1976
A=15.1976, which is identical to option A.
What is a formula example?
Formula is an act or rule that uses mathematical symbols.
Equations, equalities, identities and inequalities are a few examples of formula.
An equation, also known as an equality, formula, or identity, is a mathematical phrase that states that two or more quantities are equal to one another.
A declaration of the mathematical equivalence of two quantities. The similarity A=B signifies that "A is equal to B."
A mathematical relationship that equalizes one quantity to another is known as an identity (which may initially appear to be different).
A proof in mathematics that one quantity is bigger or smaller than another A>b is used to indicate "A is bigger than B," whereas A<B is used to indicate "A is smaller than B." The symbols A<=B and A>=B stand for "A is less than or equal to" and "A is greater than or equal to B" respectively. The terms "A is much less than B" and "A is much more than B," respectively, are denoted by the symbols A<<B and A>>B.
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The temperature varies indirectly as the distance from the city. The temperature equals 5°C when the distance from the city is 50 miles. What is the temperature when the distance is 20 miles from the city?
Answer:
2 degrees c
Step-by-step explanation: It's 5 degrees when it's 50 miles, simplify that and you get 1 degree c when it's 10 miles, so 1 times 2 is 20 and 1 times 2 is 2
What is the value of f(x)=x21+4 when x = 8?
A. 0
B. 1
C. 6
D. 8
if the simple interest on $5000 for 2 years is $700, then what is the interest rate
Asher is painting a wall on a storage shed. He knows one can of paint covers an area of 24 square feet. Asher uses a meter stick to measure the wall, as shown. What is the fewest number of cans of paint Asher needs to paint the wall?
Therefore , the solution of the given pentagon is the wall has a square footage of 80.7293. Asher requires four cans in total.
A pentagon is what?A polygon with five sides and five angles is called a pentagon. Penta and Gonia, two words that each denote five angles, are the components of the word "pentagon." The shape is created when the sides of such a pentagon come together at their ends.
Here,
Given that a storage shed's wall has a pentagonal shape.
A pentagon's surface can be separated into two shapes. The first shape is a rectangle, while the second is a triangle.
The rectangular shape measures 1+1+1 = 3 meters in length.
(1 + 1) = 2 metres is the width.
3 x 2 = 6 square meters make up the space of the rectangle.
Three meters make up the triangle's base.
The triangle measures 1 meter in height.
The triangle's area is 1/2 base, 1/2 height, or 1/2 x 3-1, or 3/2 square meters.
The pentagon's total area is 7.5 square meters, or 6 + 3/2 square meters.
10.7639 square feet are equal to 1 square meter.
(7.5 x 10.7639) square feet are equal to 7.5 square meters.
= 80.7293 square meters
24 square feet are covered by one can of paint.
He requires 80.7293/24 = 3.36 square feet in order to cover it.
Therefore, he requires a minimum of 4 cans oil paint.
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The tension in a taut rope is increased by a factor of 9 and the linear density decreased by a factor of 9. How does the speed of ?wave pulses on the rope change, if at all The speed remains the same The speed is increased by a factor of 3 The speed is reduced by a factor of 3_ The speed is increased by a factor of 9 The speed is reduced by a factor of 9_
The speed of wave pulses on the rope remains the same when the tension in a taut rope is increased by a factor of 9 and the linear density is decreased by a factor of 9.
The speed of wave pulses on a rope is determined by the tension and the linear density of the rope. The wave speed is given by the equation v = √(T/μ), where v is the wave speed, T is the tension in the rope, and μ is the linear density of the rope.
In this scenario, the tension in the rope is increased by a factor of 9. Since the wave speed is directly proportional to the square root of the tension, increasing the tension by a factor of 9 would result in an increase in the wave speed by a factor of √9, which is 3. However, simultaneously, the linear density of the rope is decreased by a factor of 9. The wave speed is inversely proportional to the square root of the linear density, so decreasing the linear density by a factor of 9 would result in a decrease in the wave speed by a factor of √(1/9), which is 1/3.
The increase in tension and decrease in linear density have opposite effects on the wave speed, with one increasing it and the other decreasing it. Since these effects cancel each other out, the net result is that the speed of wave pulses on the rope remains unchanged. Therefore, the correct answer is that the speed remains the same
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Tamara invested $15,000 in an account that pays 4% annual simple interest. Tamara will not make any additional deposits or withdrawals. How much interest will Tamara earn on her investment at the end of 3 years?
Answer:
$1,800
Step-by-step explanation:
We know that Tamara invested $15,000 and gets %4 of it each year, She plans to withdraw all the money by the end of 3 years.
4 percent of 15,000 is 600
So we can multiply 600 by three and add it to the 15,000
That gives us 16,800
So Tamara will make a $1,800 interest
5x+36
HEPPP MEEE PLEASEEE
Answer:
180
Step-by-step explanation:
5×+36 is 180
hope this helps !!?
Answer:
x = 7.2
Step-by-step explanation:
First we write down the equation
5x + 36
In order to find what x equals we will need to isolate the variable. To do this we divide the variable by 5.
This gets us...
x = 7.2
Sorry if you didn't need to find what x equaled.
The function f(x) is defined below. What is the end behavior of f(x)?
f(x) = 80x* 2 + 640 - 400х - 52
The end behavior will be as x approaches infinity, and negative infinity, f(x) approaches infinity.
What is a function?Function is a type of relation, or rule, that maps one input to specific single output.
The function f(x) is defined as:
→ f(x)= 80x* 2 + 640 - 400x - 52
We need the degree and the leading coefficient to determine the behavior.
Since our leading coefficients has a leading even degree of 5, and a positive number,
The function will Rises to the left and falls to the right.
The end behavior will be as x approaches infinity, and negative infinity, f(x) approaches infinity.
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Someone help!!!!!! Look at the picture below
Answer:
9
Step-by-step explanation:
i can not really tell what letters are on the picture but i think it is 9
determine the quadratic equation in standard form of a parabola with a zero at x=5 and vertex ar (-3, 32). start with factored form
a)find the other zero
b) create your factored form equation
c) create your standard form equation
Answer:
see image...
start with Graphing Form: y = a(x-h)²+ k
knowing that h is the x value (negative of it) of the vertex , and k is the y value of the vertex
Graphing Form Equation: y = a(x+3)²+32
you are also given that when the x value is 5 the y value has to be 0
0 = a(4)^2 + 32
a has to be - 1/2
Step-by-step explanation:
2/3(x+6)=-8 whats the value of x?
Answer:
x=-18
Step-by-step explanation:
Answer:
The answer is -18
Step-by-step explanation:
STEP 1:
\(3 \times \frac{2}{3} (x + 6) = 3( - 8)\)
2(x+6) = -24
______________________________________
STEP 2:
Divide both sides by 2:
\( \frac{2(x + 6)}{2} = \frac{ - 24}{2} \)
________________________________
STEP 3:
Simplify:
\(x + 6 = - 12\)
Subtract 6 from both sides:
\(x + 6 - 6 = - 12 - 6\)
________________________________
STEP 4:
\(x = - 18\)
Therefore, your answer is -18.
Ask more questions if you don’t understand! :)
Given that CA = 2 and AT = 10, find CT.
Answer:
CT = 12
Step-by-step explanation:
CA = 2
AT =10
CT = CA + AT
=12
Answer:
CT = 12
Step-by-step explanation:
CT = CA + AT = 2 + 10 = 12
3. A doctor treated 2,000 patients over a period of time. If he worked for
5 hours a day and spent 15 minutes pach patient, how many days
did the doctor spend to treat all the patients?
Answer:
100 days
Step-by-step explanation:
the doctor works 5 hrs per day, which means 20 patients per day, in 100 days he will be able to treat 2000 patients
Someone please help will mark as brainliest
Answer:
c:88
Step-by-step explanation:
The angle that measures 92 degrees and the angle with the question mark are supplementary angles which mean their sums make up 180 degrees because they are on a line. So 180 degrees - 92 degrees = 88 degrees.
y B E D F A C1 x K ] H G Which pair of triangles drawn on the grid above are apparently congruent? (G.6) (1 point) O A. AJKL, A ABC O B. AABC, AGHI O C. AJKL, A DEF O D. ADEF, AJKL
EXPLANATION:
To know when a pair of triangles are congruent we must know the following:
-They must be the same length on all sides, and they must have the same measurement at their internal angles.
ANSWER:
Therefore the answer is A;the two triangles have the same measure on their sides and internal angles.(JKL ,ABC)
Complete the square to rewrite the equation of each circle in graphing form. Identify the center and the radius of each circle. please hurry
1. \(x^2+6x+y^2-4y=-9\)
2. \(x^2+10x+y^2-8y=-31\)
3.\(x^2-2x+y^2+4y-11=0\)
4. \(x^2+9x+y^2=0\)
The radii and the centers are explained below.
Given that are equations of circles we need to find the center and the radius of each circle.
1) x² + 6x + y² - 4y = -9
x² + 2·3·x + y² - 2·2·y = -9
Add 13 to both side,
x² + 2·3·x + y² - 2·2·y + 13 = -9 + 13
x² + 2·3·x + y² - 2·2·y + 9 + 4 = 4
(x+3)² + (y-2)² = 4
The center = (-3, 2) and the radius = 2
2) x² + 10x + y² - 8y = -31
x² + 2·5·x + y² - 2·4·y = -31
Add 41 to both sides,
x² + 2·5·x + y² - 2·4·y + 41 = -31 + 41
x² + 2·5·x + y² - 2·4·y + 25 + 16 = 10
(x+5)² + (y-4)² = 10
The center = (-5, 4) and the radius = √10
3) x² - 2x + y² + 4y -11 = 0
x² - 2x + y² + 4y = 11
x² - 2·1·x + y² - 2·2·y = 11
Add 5 to both sides,
x² - 2·1·x + y² - 2·2·y + 5 = 11 + 5
x² - 2·1·x + y² - 2·2·y + 4 + 1 = 16
(x-1)² + (y-2)² = 4²
The center = (1, 2) and the radius = 4
4) x² + 9x + y² = 0
\(\left(x-\left(-\frac{9}{2}\right)\right)^2+\left(y-0\right)^2=\left(\frac{9}{2}\right)^2\)
The center = (-9/2, 0) and the radius = 9/2
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if u is a subspace of a finite dimensional vector space can it be an infinite dimensional vector space?
No a subspace of a finite dimensional vector space cannot be an infinite dimensional vector space
This is due to the fact that a subspace is a subset of a larger vector space and must have the same dimension as its parent vector space. In other words we can say that, if the parent vector space is finite dimensions,then the subspace must be as well.
To put it in another way, a vector space is finite dimensional if it can be traversed by a limited number of vectors. A subspace can only be spanned by a subset of the vectors that span the parent vector space since it is a subset of a larger vector space. As a result, if the parent vector space has finite dimensions, the subspace must be as well.
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What is the radius of a circle that has an area of 89 square feet?
Answer:
5.32255ft
Step-by-step explanation:
A
π=89
π
Answer:
5.3
Step-by-step explanation:
The equation is A=πr²
The area is 89 so 89=πr²
89/π=r²
√89/π =r
r=5.322554
(5 pts) A quadratic function f is given by f(x) = ax2 + bx + c where a is not 0. Select all
the statements that must be true about the graph of f.
a.
The y-intercept of the graph is at (0,c).
b.
The graph has an x-intercept at (c,0).
C.
When a < 0 the graph is open downward.
d.
The graph has two x-intercepts.
e.
If b = 0, then the vertex is on the y-axis.
Answers:
a) True. Plug in x = 0 and it leads to y = c. Therefore, the point (0,c) is on the parabola.b) False. Plug in y = 0 and apply the quadratic formula. One x intercept may sometimes be x = c, but it could easily be other values as well. Or perhaps you may not get any real number solutions at all. See part d) below.c) True. If a < 0, then the leading coefficient is negative. Overall, both endpoints will tend toward negative infinity to produce a parabola that opens downward.d) False. The quadratic may have one x intercept or it may not have any x intercepts at all. It depends on what the discriminant d = b^2 - 4ac is equal to. If d < 0, then we have no x intercepts. If d = 0, then we have exactly 1 x intercept. If d > 0, then we have two different x intercepts.e) True. The vertex's x coordinate is -b/(2a). If b = 0, then the x coordinate of the vertex is 0. The vertical line x = 0 is directly on top of the y axis.If the value of a is less than zero then the parabola is open downward. Then the correct option is C.
What is a quadratic equation?It is a polynomial that is equal to zero. Polynomial of variable power 2, 1, and 0 terms are there. Any equation having one term in which the power of the variable is a maximum of 2 then it is called a quadratic equation.
A quadratic function f is given by f(x) = ax2 + bx + c where a is not 0.
a. The y-intercept of the graph is at (0,c). This is incorrect.
b. The graph has an x-intercept at (c,0). This is incorrect.
c. When a < 0 the graph is open downward. This is correct.
d. The graph has two x-intercepts. This is incorrect.
e. If b = 0, then the vertex is on the y-axis. This is incorrect.
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What is the definition of a number trick? (Math)
Answer:
How does the number trick work?
Trick 1: Think of a number
Pick a whole number between 1 and 10.
Add 2.
Multiply by 2.
Subtract 2.
Divide by 2.
Subtract your original number.
Everyone's final answer will be 1.
Step-by-step explanation:
The Number 5 Trick. Ask somebody to think of a number and keep it secret. Then ask that person to double the secret number and then multiply by 5. Ask for the total. Whatever the total is, knock off the last digit and you will have the secret number the person mentally chose at the start.
LEMMEBE HONEST
I HAVE NO IDEAAAA
“Think-of-a-number” tricks
These tricks come in two types: Think of a number (but don't tell me), do some arithmetic with that number, and I can predict your result. Think of a number, do some arithmetic, tell me your result, and I can instantly say what number you started with.
Hope this helps!
Sending U good luck!
A spinner with 4 equal sections is spun 20 times. The frequency of spinning each color is recorded in the table below.
Outcome Frequency
Pink 6
White 3
Blue 7
Orange 4
What statement best compares the theoretical and experimental probability of landing on blue?
The theoretical probability of landing on blue is one fourth, and the experimental probability is 35%.
The theoretical probability of landing on blue is one fourth, and the experimental probability is 50%.
The theoretical probability of landing on blue is one fifth, and the experimental probability is 35%.
The theoretical probability of landing on blue is one fifth, and the experimental probability is 50%.
The theoretical probability of getting a blue color is 1/4.
The experimental probability of landing a blue color is 35%.
Option A is the correct answer.
What is probability?It is the chance of an event to occur from a total number of outcomes.
The formula for probability is given as:
Probability = Number of required events / Total number of outcomes.
We have,
Number of times the blue color is recorded = 7
The total number of times each color is recorded = 20
Now,
Number of sections = 4
Number of blue sections = 1
So,
The theoretical probability of getting a blue color.
= 1/4
Now,
Experimental probability of landing a blue color.
= 7/20
= 7/20 x 100
= 35%
Thus,
Theoretical probability of getting a blue color is 1/4.
Experimental probability of landing a blue color is 35%.
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What are the 3 types of integers?
Answer: In summary, all integers can be classified as either positive, negative, or zero.
Step-by-step explanation:
There are three types of integers: positive integers, negative integers, and zero.
Positive integers: Positive integers are numbers greater than zero, such as 1, 2, 3, 4, and so on.
Negative integers: Negative integers are numbers less than zero, such as -1, -2, -3, -4, and so on.
Zero: Zero is an integer that is neither positive nor negative. It is the only integer that is neither positive nor negative, and it is often referred to as the "origin" on a number line.
In summary, all integers can be classified as either positive, negative, or zero.
Answer: The three types of integers are Zero (Neutral Integers), Negative Integers, and Positive Integers.
Step-by-step explanation:
Negative Integers are the ones that has a value less than zero, examples of these are -7, -8, -9.
Positive integers, on the other hand. Are the ones that has a value more than zero, examples of these are 10, 11, 12, 13.
Note: The key difference between Negative Integers and Positive Integers is that a negative integer has a "-" sign, while a positive integer does not.
Zero are the neutral integers which means that it's the integer that's in the middle of the positive and negative integers, it has neither a positive sign or a negative sign.
Another note: Integers do not include fractions or decimals, only whole numbers.
find the most general antiderivative of the function. (check your answer by differentiation. use c for the constant of the antiderivative.) f(x) = 7ex 6 sec2(x) on the interval − 2 , 2
The antiderivative of 7ex is 7ex, and the antiderivative of 6 sec2(x) is 6 tan(x). Thus, the most general antiderivative is F(x) = 7ex + 6 tan(x) + C, where C represents the constant of integration.
To find the antiderivative of the given function f(x) = 7ex 6 sec2(x), we integrate each term separately. The antiderivative of 7ex is simply 7ex, as the exponential function ex is its own antiderivative.
Next, we consider the antiderivative of 6 sec2(x). The derivative of the tangent function tan(x) is sec2(x), so the antiderivative of sec2(x) is tan(x). However, there is a coefficient of 6 in front of sec2(x), so the antiderivative becomes 6 tan(x).
Combining these results, we have F(x) = 7ex + 6 tan(x) as the antiderivative of the original function f(x) = 7ex 6 sec2(x). The "+ C" at the end represents the constant of integration, as any constant added to the antiderivative remains undetermined. Therefore, the most general antiderivative of f(x) is F(x) = 7ex + 6 tan(x) + C, where C is a constant.
To verify this result, we can differentiate F(x) and confirm that it indeed yields the original function f(x). Taking the derivative of F(x) with respect to x will give us back 7ex 6 sec2(x), thus confirming the correctness of the antiderivative.
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Please HELPPPP
Quadrilateral ABCD is a square and the length of AC is 20 cm. What is the length of DE and DC?
What is
m ADE ?
For the square on the diagram, we can see that:
DE = 10cmDC = 14.14cmmADE = 45°What is the length of DE and DC?
Remember that all the sides of a square have the same length.
Here we know that AC, the diagonal of the square, has a measure of 20 cm.
Then the length of DE, which is half of the diagonal of the square, is half of that, then:
20cm/2 = 10cm
DE = 10cm
DC is one of the sides of the square. Remember that for a square of sidelength S, the diagonal is:
D = √2*S
Then the sidelength is:
S = D/√2
Here we know that the diagonal measures 20 cm, then:
DC = S = 20cm/√2 = 14.14 cm
DC = 14.14cm
Finally, mADE refers to the measure located at the vertex D on the triangle on the angle ADE.
Remember that all the angles of a square measure 90°, and here the ray DE divides that angle in two halves, then mADE = 90°/2 = 45°
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For all waiting lines, P0+Pw= 1. true false
True. For all waiting lines, P0+Pw= 1
The terms P0 and Pw refer to the probabilities of having 0 customers in the system and having customers waiting in line, respectively. Since every customer is either in the system or in the waiting line, the sum of these probabilities must equal 1. This is because there are only two possible outcomes: either a customer is being served (P0) or they are waiting in line (Pw). Therefore, the probability of one of these events occurring is 1, and the probability of the other event occurring is 0. Hence, P0 + Pw = 1.
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Morgan is making accessories for the soccer team. She uses 822.48 inches of fabric on headbands for 43 players and 3 coaches. She also uses 400.33 inches of fabric on wristbands for just the players. How much fabric was used on a headband and wristband for each player?
Answer:
headband 17.88
Wristband 9.31
Step-by-step explanation:
headband: 822.48/(43+3)
Wristband: 400.33/43
In the graph shown below, what is f(2)?
A. f(2) = 2
B. f(2) = 1
C. f(2) -1 and f(2) = 2
D. f(2) doesn't exist
\(.3x^2+x=.1x\) help me please this is hard
Answer:
x is equal to -3
Step-by-step explanation:
If you have a lot of problems with decimal coefficients (I know I do), you can get rid of them first. Just multiply both sides of the equation by 10:
.3x² + 1 = .1
3x² + 10x = x
Then note that each term is also divisible by x. If we factor that out, we get:
3x + 10 = 1
Which we can easily solve for x:
3x = -9
x = -3
Determine the occupant load of a one room daycare that is 20' by 30' !
The occupant load of a one room daycare that is 20' by 30' is 17 people.
The occupant load of the daycare room can be determined by using the formula:
Occupant load = Area of room / Occupant load factor
From the case, we know that the area of the room is 20' x 30', then:
Room area = 600 square feet.
The occupant load factor for a daycare is typically 35 square feet per person. This means that each person in the daycare should have at least 35 square feet of space.
Using the formula, the occupant load of the one room daycare is:
Occupant load = 600 square feet / 35 square feet per person = 17.14 people
Therefore, the occupant load of the one room daycare is 17 people. This means that the daycare can safely accommodate 17 people at one time.
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