a painter can finish painting a house in 3 hour
Answer:
cool
Step-by-step explanation:
Determine the surface area and volume. Note: The base is a square.
Answer:
volume=60cm3, surface area=96cm2
Step-by-step explanation:
volume=1/3×(6×6)×5
=60cm3
surface area= 4(1/2×6×5)+(6×6)
=96cm2
what is the standard deviation of 1042
The sample standard deviation is 7.
How do we calculate the sample standard deviation?We first need mean of the three numbers. The mean of the set is:
= (1035 + 1042 + 1049) / 3
= 1042
Now, we will calculate variance of sample which will give:
Variance = [(1035 - 1042)^2 + (1042 - 1042)^2 + (1049 - 1042)^2] / 2
Variance = [(-7)^2 + 0^2 + 7^2] / 2
Variance = (49 + 49) / 2
Variance = 98 / 2
Variance = 49
Next, we will take square root of variance to derive standard deviation which is:
Standard deviation = √49
Standard deviation = 7.
Full question "What is the standard deviation of 1035, 1042 & 1049".
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Part A: Use the Pythagorean Theorem to derive the standard equation of the circle, with center at (a, b) and a point on the circle at (x, y). Show all necessary math work. (3 points)
Part B: If (a, b) = (5, –2) and c = 10, determine the domain and range of the circle. (4 points)
Part C: Is the point (10, 2) inside the border of the circle if (a, b) = (5, –2) and c = 10? Explain using mathematical evidence. (3 points)
According to the equation the given all necessary math work are:
\(A: (x -f)^2 +(y -g)^2 = h^2\)
B: domain: [-5, 11]; range: [-9, 7]
C: yes, inside
What is Pythagοras theοrem?The hypοtenuse's square is equal tο the sum οf the squares οf the οther twο sides if a triangle has a straight angle (90 degrees), accοrding tο the Pythagοras theοrem. Keep in mind that BC² = AB² + AC² in the triangle ABC signifies this. Base AB, height AC, and hypοtenuse BC are all used in this equatiοn. The lοngest side οf a right-angled triangle is its hypοtenuse, it shοuld be emphasized.
Part A:
Use οf the Pythagοrean theοrem gets yοu tο the equatiοn fοr a circle in essentially οne step:
sum οf squares οf sides = square οf hypοtenuse
\((x -f)^2 +(y -g)^2 = h^2\) . . . . . . circle cantered οn (f, g) with radius h
Part B:
The circle will be defined fοr values οf x in the dοmain f ± h, and fοr values οf y in the range g ± h.
dοmain: 3 ± 8 = [-5, 11]
range: -1 ±8 = [-9, 7]
Part C:
The distance frοm pοint (10, -4) tο (f, g) is ...
\(h^2 = (10 -3)^2 +(-4 -(-1))^2\)
\(h^2 = 7^2 +(-3)^2 = 49 +9 = 58\)
h = √58 < 8 . . . . the distance tο the pοint is less than h=8.
The pοint is inside the circle.
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9. Find the measure of angle
a.
a
36°
57°
round each number to the nearest 10, 100 and 1000: a:500
Answer:
?
Step-by-step explanation:
can you specify which numbers to round
4/5^3=?
Write your answer as a fraction in simplest form.
The simplest fraction form of the given expression 4/5^3 is 4/125.
What is a fraction?A fraction is part of a whole. In arithmetic, numbers are represented as the quotient of the numerator divided by the denominator. In simple fractions, both are integers. A complex fraction has a fraction in the numerator or denominator. A true fraction has the numerator less than the denominator
What is a fraction's simplest form?Simplifying a fraction means finding the equivalent fraction, truncated as much as possible.
According to the information from the question given:
Simplified form of fraction= 4/5^3
=4/(5x5x5)
=4/125
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Find the value of x
-1
1
27
x + 18
24
x+16
The value of x in the chord of the circle using the chord-chord power theorem is 0.
What is the value of x?The chord-chord power theorem simply state that "If two chords of a circle intersect, then the product of the measures of the parts of one chord is equal or the same as the product of the measures of the parts of the other chord".
From the figure:
The first chord has consist of 2 segments:
Line segment 1 = 27
Line segment 2 = ( x + 16 )
The second chord also consist of 2 sgements:
Line segment 1 = 24
Line segment 2 = ( x + 18 )
Now, usig the Chord-chord power theorem:
27( x + 16 ) = 24( x + 18 )
Solve for x:
27x + 432 = 24x + 432
27x - 24x = 432 - 432
3x = 0
x = 0
Therefore, the value of x is 0.
Option D) 0 is the correct answer.
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Question Help
Mia has 28 stamps. Alex has 49 stamps, and Michael has 77 stamps. Use the GCF and the
Distributive Property to find the total number of stamps Mia, Alex, and Michael have.
Write each number as a product using the GCF as a factor, and apply the Distributive Property
28 +49 +77 = 0
(Use the operation symbols in the math palette as needed. Do not simplity)
3
More
Enter your answer in the answer box and then click Check Answer
Clear Al
C
1
remaining
Answer:
a. Using the GCF and the Distributive Property to find the total number of stamps Mia, Alex, and Michael have:
28 + 49 + 77 = 154
= 7*4 + 7*7 + 7*11
= 7 (4 + 7 + 11)
= 7 (22)
= 154
Step-by-step explanation:
a) Data and Calculations:
Number of stamps that Mia has = 28
Number of stamps that Alex has = 49
Number of stamps that Michael has = 77
GCF = 7
b) GCF = Greatest common factor. The distributive property shows that multiplying two numbers (factors) together will result in the same thing as breaking up one factor into two addends, multiplying both addends by the other factor, and adding together both products. The knowledge of GCF and the distributive property helps to change expressions from standard forms to factored forms.
(5/8 + 3/4) divided by (-2/3 - 5/6)
Answer:
\(-\frac{11}{12}\)
Step-by-step explanation:
\((\frac{5}{8}+ \frac{3}{4} )/(-\frac{2}{3} -\frac{5}{6})\)
8 = 2 × 2 × 2
4 = 2 × 2
LCM = 2 × 2 × 2
LCM = 8
3 = 3 × 1
6 = 2 × 3
LCM = 2 × 3 × 1
LCM = 6
\((\frac{5}{8}+ \frac{2(3)}{2(4)} )/(-\frac{2(2)}{2(3)} -\frac{5}{6})\)
\((\frac{5}{8}+ \frac{6}{8} )/(-\frac{4}{6} -\frac{5}{6})\)
\(\frac{11}{8}/(-\frac{4}{6} -\frac{5}{6})\)
\(\frac{11}{8}/-\frac{9}{6}\)
\(\frac{11}{8}(-\frac{6}{9})\)
\(-\frac{66}{72}\)
66 = 2 × 3 × 11
72 = 2 × 2 × 2 × 3 × 3
GCF = 2 × 3
GCF = 6
\(-\frac{66/6}{72/6}\)
\(-\frac{11}{12}\)
Anna volunteers on the weekend at the Central Library. As a school project, she decides to record how many people visit the library, and where they go. On Saturday, 382 people went to The Youth Wing, 461 people went to Social Issues, and 355 went to Fiction and Literature. On Sunday, the library had 800 total visitors. Based on what Anna had recorded on Saturday, about how many people should be expected to go to The Youth Wing? Round your answer to the nearest whole number.
Based on the data recorded by Anna on Saturday, we can estimate the number of people expected to visit The Youth Wing on Sunday.
Let's calculate the proportion of visitors to The Youth Wing compared to the total number of visitors on Saturday:
\(\displaystyle \text{Proportion} = \frac{\text{Visitors to The Youth Wing on Saturday}}{\text{Total visitors on Saturday}} = \frac{382}{382 + 461 + 355}\)
Next, we'll apply this proportion to the total number of visitors on Sunday to estimate the number of people expected to go to The Youth Wing:
\(\displaystyle \text{Expected visitors to The Youth Wing on Sunday} = \text{Proportion} \times \text{Total visitors on Sunday}\)
Now, let's substitute the values into the equation and calculate the estimated number of visitors to The Youth Wing on Sunday:
\(\displaystyle \text{Proportion} = \frac{382}{382 + 461 + 355}\)
\(\displaystyle \text{Expected visitors to The Youth Wing on Sunday} = \text{Proportion} \times 800\)
Calculating the proportion:
\(\displaystyle \text{Proportion} = \frac{382}{382 + 461 + 355} = \frac{382}{1198}\)
Calculating the estimated number of visitors to The Youth Wing on Sunday:
\(\displaystyle \text{Expected visitors to The Youth Wing on Sunday} = \frac{382}{1198} \times 800\)
Simplifying the equation:
\(\displaystyle \text{Expected visitors to The Youth Wing on Sunday} \approx \frac{382 \times 800}{1198}\)
Now, let's calculate the approximate number of visitors to The Youth Wing on Sunday:
\(\displaystyle \text{Expected visitors to The Youth Wing on Sunday} \approx 254\)
Therefore, based on the data recorded on Saturday, we can estimate that around 254 people should be expected to go to The Youth Wing on Sunday.
\(\huge{\mathfrak{\colorbox{black}{\textcolor{lime}{I\:hope\:this\:helps\:!\:\:}}}}\)
♥️ \(\large{\underline{\textcolor{red}{\mathcal{SUMIT\:\:ROY\:\:(:\:\:}}}}\)
What is the probability of drawing 2 red balls without replacement?; What is the probability of getting 2 red balls with replacement?; What is the probability of drawing a second red ball given that the first ball drawn was red?; What is the probability of getting a red ball randomly?
P(2 red balls without replacement) = P(1st red ball) x P(2nd red ball | 1st red ball is red), where P is probability.
The probability of getting 2 red balls with replacement is the probability of drawing a red ball multiplied by the probability of drawing a second red ball. This can be written as P(2 red balls with replacement) = P(1st red ball) x P(2nd red ball).
The probability of drawing a second red ball given that the first ball drawn was red is the probability of drawing a red ball given that the first ball drawn was red. This can be written as P(2nd red ball | 1st red ball is red) = P(2nd red ball | 1st red ball is red).
The probability of getting a red ball randomly is simply the probability of drawing a red ball. This can be written as P(Random red ball) = P(Red ball).
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What is the sum of the interior angles of the polygon shown below
Answer:
900
Step-by-step explanation:
The sum of the interior angles of a polygon with n sides is given by the formula:
\(S=(n-2)180\)
The polygon given has 7 sides. Substitute 7 for n. Thus:
\(S=(7-2)180\\S=5(180)\\S=900\)
The sum of the interior angles is 900 degrees.
The triangle and the square shown have the same perimeter. Solve the equation 3x+4x+5x=4(x+2)
The solution of the linear equation:
3x+4x+5x=4(x+2)
is x = 1
How to solve the linear equation?Here we need to solve the following linear equation:
3x + 4x + 5x = 4*(x + 2)
First, we should expand the right side to get:
3x + 4x + 5x = 4x + 8
Now we group like terms:
3x + 4x + 5x - 4x = 8
Taking x as a common factor in the left side:
(3 + 4 + 5 - 4)*x = 8
(3 + 5)*x = 8
8x = 8
x = 8/8
x = 1
The solution is x = 1.
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What is the first term of the quotient of the following division problem?
(x³ - 1) = (x + 2)
O -0.5
O 1
O x²
Ox^4
The solution to the algebraic problem is \(x^{2}\)
What is an Algebraic Equation?
An algebraic equation is a mathematical statement that sets two expressions equal to each other. An algebraic equation is typically made up of a variable, coefficients, and constants.
Solution:
(\(x^{3}\) – 1) = (x+2)
On dividing (\(x^{3} - 1\)) by (x+2)
The first term of the quotient will be x^2 by following the Long Division Method of Algebraic Division.
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Write the equation of the parabola that has the same shape as f(x)=-3 x² but with vertex (5,9) in the form f(x)=a(x-h)²+k.
f(x)=
The equation of the parabola from the vertex is f(x) = -3(x - 5)² + 9
How to determine the equation of the parabola?The equation of the function is given as
f(x) = 3x²
Also, we have
Vertex = (5, 9)
The form of the equation is given as
f(x) = a(x - h)² + k
Where
Vertex = (h, k)
This means that
Vertex = (h, k) = (5, 9)
Substitute (h, k) = (5, 9) in the equation f(x) = a(x - h)² + k
So, we have
f(x) = a(x - 5)² + 9
This also means that
f(x) = -3(x - 5)² + 9
The -3 is gotten from f(x) = -3x²
Hence, the equation of the parabola is f(x) = -3(x - 5)² + 9
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If \(y = \frac{(1 + x)u}{(1 + x)v} \)
Find dy/dx
The value of dy/dx is ( v du/dx - u dv/dx)/v²
From the question, we have
y = (1+x)u/(1+x)v
y = u/v
dy/dx = d/dx(u/v)
d/dx(u/v) = ( v du/dx - u dv/dx)/v²
Derivatives:
A function's varied rate of change with respect to an independent variable is referred to as a derivative. When there is a variable quantity and the rate of change is irregular, the derivative is most frequently utilized. The derivative is used to assess how sensitive a dependent variable is to an independent variable (independent variable). In mathematics, a quantity's instantaneous rate of change with respect to another is referred to as its derivative. Investigating the fluctuating nature of an amount is beneficial. In calculus, a function's derivative measures how sensitively its output value changes in response to changes in its input value.
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How do you make a table of value for the following equation? 3x=y
Answer:
Step-by-step explanation:
y= 3x
x y
0 0
1 3
2 6
3 9
-1 -3
-2 -6
Determine which equation below have x = 15 as a solution.
A.
3x = 15
B.
x – 12 = 27
C.
4 + x = 19
D.
x
_
3= 1.5
Answer:
C, 4+x=15
Step-by-step explanation:
since you're trying to find x you need to isolate it, so use the other numbers you have, 19 and 4, subtract 4 from 19, (19-4) to get x=15.
The difference of -10 and the product of p and q
The expression of "The difference of -10 and the product of p and q" in algebraic notation is pq + 10
Writing the algebraic expression in algebraic notationFrom the question, we have the following parameters that can be used in our computation:
The difference of -10 and the product of p and q
The numbers are given as
p and q
The product of p and q means pq
So, we have the following
The difference of -10 and pq
The difference of -10 and pq means
pq + 10
Hence, the expression is pq + 10
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a boy was 28 inches tall. Currently, he is 25% taller. How
tall is the boy now?
Answer:
21 inches
Step-by-step explanation:
If the boy is 25% smaller, that means his current height is 75% of his previous height. 75% of 28 is 0.75 * 28 which is 21.
Hope this helps :)
Answer:
35 inches tall. (This is assuming they want him to be 25% taller. Using the past tense of 28, I assume this is growth.)
Step-by-step explanation:
25% is 25/100 therefore we get 1/4 which gives us 28/4 = 7.
So this makes the boy 7 inches taller than 28.
28 + 7 = 35
Making him 35 inches tall.
Try These questions out and I’ll give you brainliest
The expressions are simplified to;
1. 72n² + 63n
2. 18t - 18t²
3. -18b² - 18b
4. -56r - 21r²
5. -6m + 9m²
What are algebraic expressions?Algebraic expressions are simply described as expressions that are known to consist of coefficients of variables, variables, constants, terms, and factors.
These algebraic expressions are also made up of mathematical or arithmetic operations.
These operations are;
BracketParenthesesAdditionMultiplicationDivisionSubtractionFrom the information given, we have;
1. -9n (-8n -7)
expand the bracket
72n² + 63n
2. -2t(-9 + 9t)
expand the bracket
18t - 18t²
3. -3b(6b + 6)
expand the bracket
-18b² - 18b
4. -7r(8 + 3r)
expand the bracket
-56r - 21r²
5. 3m(-2 + 3m)
expand the bracket
-6m + 9m²
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2 Equivalent fractions for 3/9
6x + 4y = 7Kx + 8y = 7What is the value of K?
The value of K in the given equations 6x+4y=7 and Kx+8y=7 is k=(-4y/x)+6.
What are equations?Two things are equal, according to an equation.
It will be written with the equals sign "=" as in x+2=6.
What is on the left (x + 2) is equal to what is on the right ((6)), according to that equation.
A remark like "this equals that" can be compared to an equation.
So, we have the equations:
6x + 4y = 7
Kx + 8y = 7
Now, we know that both equations are equal to 7. so, we can write it as:
6x + 4y = Kx + 8y
Solve with subject K as follows:
6x + 4y = Kx + 8y
Kx - 6x = 4y - 8y
(K-6)x = -4y
k-6 = -4y/x
k = (-4y/x) + 6
Therefore, the value of K in the given equations 6x+4y=7 and Kx+8y=7 is k=(-4y/x)+6.
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There are 3 squares and 6 triangles. What is the simplest ratio of squares to triangles?.
Answer: 1:3
Step-by-step explanation:
there are 3 squares and 6 triangles.
as a ratio we would write this as 3:6
all we need to do is simply it by dividing 3 on both sides
this would give us the ratio of 1:3
hope this helps :)
What is the perimeter of the triangle?
Answer:
this triangle is a acute angel so it 3
Find (f - g)(x), if f(x) = 2x2 + 2 and g(x) = 6x2 + 6.
To find (f - g)(x), you can subtract g(x) from f(x):
(f - g)(x) = f(x) - g(x)
= (2x2 + 2) - (6x2 + 6)
= -4x2 + (-4)
= -4(x2 - 1)
Therefore, the result of (f - g)(x) is -4(x2 - 1).
Rosa has read 72 pages of a book these Pages make up 45% of the book select from the drop-down menu to correctly identify the total number of pages in the book
]
Answer:
there are 160 pages
Step-by-step explanation:
72 divided by 45 multiplied by 100 is your answer
eight to the fourth power increased by six
Answer: 4102
Step-by-step explanation:
8^4 + 6=
4096+6=4102
A community bike ride offers a short 5.7-mile ride
Answer:
Nice "short" ride unless your out of shape
Step-by-step explanation: