The volume of the hemisphere is found as 695.55 cm³.
What is termed as the hemisphere?The term hemisphere can be broken down into hemi as well as sphere, where hemi implies half and sphere is a 3D mathematical shape. As a result, a hemisphere is a three-dimensional geometric shape that really is half of a sphere, with one side flat and the other as a circular bowl. It is created by cutting a sphere at the centre point along its diameter, resulting in two equal hemispheres. The base or face of the hemisphere is the flat face of a hemisphere.The formula for finding the volume of the hemisphere is;
V = (4/3)πr³
where, π = 3.14
r = radius
For the given question, the diameter of the hemisphere is 11 cm.
Radius = 11/2 = 5.5 cm.
Put the value in formula.
V = (4/3)×3.14×5.5³
V = 695.55
Thus, the volume of the hemisphere is found as 695.55 cm³.
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Mrs. Walter wanted to plant one daffodil for every 3 tulips in her garden. If she planted 20 daffodils, how many tulips did she plant?
Answer:
60 tulips
Step-by-step explanation:
1 daffodils : 3 tulips
Since she planted 20 daffodils
20 × 3 = 60 tulips
select graph for solution of open sentence click until correct graph appears [×]=2
Given:
[tex]|x|=-2[/tex]Let's graph the the absolute value equation.
From the equation let's solve for x.
Since |x| = -2, there is no possible value of x that can satisfy this equation. This is because an absolute value can never be a negative number.
Therefore, we can say there is no solution.
This absolute value equation can not be graphed.
ANSWER:
No solution
Can somebody trade lease help me I’m late on my work in school
The slopes for each couple of points are summarized below:
m = 2 / 3 m = - 3 / 4 m = - 2 m = Undefined m = 4 m = 0 m = 1 m = - 2 m = Undefined m = 4 / 3 m = - 2 / 7 m = 0 x = 6 y = 6 x = 11How to understand slopes in lines
Geometrically speaking, slopes in lines indicates the grade of steepness of the line itself. The slope of the line can be determine by knowning the coordinates of two distinct points set on Cartesian plane and using the secant line formula, whose definition is shown below:
m = Δy / Δx
Where:
m - SlopeΔx - Change in independent variable.Δy - Change in dependent variable.Now we proceed to answer on each case:
Case 1
m = [3 - (- 1)] / [3 - (- 3)]
m = 4 / 6
m = 2 / 3
Case 2
m = (- 2 - 1) / [2 - (- 2)]
m = - 3 / 4
Case 3
m = [2 - (- 4)] / [- 4 - (- 1)]
m = 6 / (- 3)
m = - 2
Case 4
m = Undefined, as Δx = 0.
Case 5
m = [3 - (- 1)] / (3 - 2)
m = 4
Case 6
m = 0, as Δy = 0
Case 7
m = (6 - 9) / (1 - 4)
m = - 3 / (- 3)
m = 1
Case 8
m = [- 5 - (- 1)] / [- 2 - (- 4)]
m = - 4 / 2
m = - 2
Case 9
m = (- 9 - 3) / (5 - 5)
m = - 12 / 0
m = Undefined
Case 10
m = (9 - 1) / (8 - 2)
m = 8 / 6
m = 4 / 3
Case 11
m = [- 6 - (- 8)] / (7 - 14)
m = 2 / (- 7)
m = - 2 / 7
Case 12
m = [- 3 - (- 3)] / (8 - 4)
m = 0 / 4
m = 0
Case 13
[8 - (- 4)] / (2 - x) = - 3
12 = - 3 · (2 - x)
12 = - 6 + 3 · x
18 = 3 · x
x = 6
Case 14
(4 - y) / (3 - 10) = - 2 / 7
(4 - y) / (- 7) = - 2 / 7
4 - y = - 2
y = 6
Case 15
(4 - 1) / (x - 7) = 3 / 4
3 / (x - 7) = 3 / 4
x - 7 = 4
x = 11
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Ms. Yoto is putting together bags of fruit that contain 1 pear for every 2 apples. How many apples are there in a bag if there is a total of nine pieces of fruit (using algebraic formulas).
The number of apples in the bag are 6
What are algebraic equations?
Algebraic equation are the equation containing coefficients and variable Which can be solved by various method like substitution and elimination.
We are given that, Ms. Yoto is putting together bags of fruit that contain 1 pear for every 2 apples.
Also the total number of fruits in the bag are 9
Now mr. Yoto is putting 3 fruit at a time and the bag contains total of 9 fruits that means 3 such sets were put
in each set there were 2 apples and 1 pear
Hence there were 6 apples and 3 pear
Hence the number of apples in the bag is 6
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Mark has downloaded four times as many songs on his music player as Chloe. If Mark has 40 songs, how many songs does Chloe have?
Answer:
Chloe has 10 songs.
Step-by-step explanation:
40 ÷ 4 = 10
auto pistons at wenming chung's plant in shanghai are produced in a forging process, and the diameter is a critical factor that must be controlled. from sample sizes of 10 pistons produced each day, the mean and the range of this diameter have been as follows:
The value of the mean is 155.96mm
Calculation of the mean is:
n=5
Mean= [tex]\frac{\sum fx}{n}[/tex]
Mean=[tex]\frac{156.9+153.2+153.6+157.5+158.6}{5}[/tex]
Mean=779.8/5
Mean=155.96mm
The question was incomplete, the complete question is given below:
Auto pistons at Wenming Chung's plant in shanghai are produced in a forging process, and the diameter is a critical factor that must be controlled. from sample sizes of 10 pistons produced each day, the mean and the range of this diameter have been as follows:
Day Mean X(mm) Range R (mm)
1 156.9 4.2
2 153.2 4.6
3 153.6 4.1
4 157.5 4.8
5 158.6 4.7
What is the value of mean in mm, (round your response to 2 decimal places)
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Which system of inequalities is graphed below?
System of inequalities are :
y> [tex]x^{2} -4[/tex] and y > [tex]x^{2} +3[/tex]
What is inequality ?Inequality, A mathematical statement expressing an order relationship between two numbers or algebraic expressions, such as greater than, greater than or equal to, less than, or less than or equal toThe occurrence of an unfair and/or unequal distribution of opportunities and resources among the people that make up a society is referred to as inequality. To different people and in various settings, the word "inequality" may indicate different things.Polynomial inequality, rational inequality, and absolute value inequality are the various types of inequalities that can exist in mathematics.To learn more about : Inequalities
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Jake has 30 fish in his aquarium. Emi has 1/3 the number of fish that Jake has and 1/2 the number of fish that Tobin has.
If the three students combined all their fish in the school's new aquarium, how many fish would there be?
Using Linear equation, The total number of fishes in the aquarium is found to be 50.
What is an linear equation in one variable?Linear equation is an equation containing one unknown variable with power one and constants.
The standard form of an linear equation in one variable x is :
ax + b = 0 , where a, b are constants
x= -b/ a is solution if this equation or we can solve this equation by adding or subtracting, multiplying, dividing same number to both sides.
Given that number of fishes jake has in the aquarium = 30
And that number of fishes Emi has is 1/3 the number of fish that jake has .
Therefore, Number of fishes that Emi has = 1/3 (30) = 10
Also given that Emi has 1/2 the number of fish that Tobin has .
Let Tobin has x fishes
⇒ 1/2(x) = Number of fishes Emi has
⇒ (1/2)x = 10, this is an linear equation in x
Multiplying both sides by 2, We get:
⇒ 2× (1/2)x = 2 ×10
⇒ x = 20
∴ Tobin has 20 fishes
If the three students combined all their fish in the school's aquarium,
the Total number of fishes = 30+20+10 = 50
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Please help!
Find the value of x and y
We can conclude that the value of angle y is 70° and x is 35°.
What are angles?An angle is a figure in Euclidean geometry made up of two rays that share a common endpoint and are referred to as the angle's sides and vertex, respectively. Angles created by two rays are in the plane where the rays are located. The meeting of two planes also creates angles. We refer to these as dihedral angles.So, a measure of 'x':
We can see that ∠BAC = ∠DAE (Inversely opposite angles)
∠BAC = ∠DAE = 40°We can observe that △DAE is an isosceles triangle with ∠2x and ∠y being equal.Let 2x be y for instance:
y + y + 40 = 1802y = 180 - 402y = 140y = 140/2y = 70°Now, we know that y = 70 and similarly 2x = 70.
Now, solve for 'x' as follows:
2x = 70x = 70/2x = 35°Therefore, we can conclude that the value of angle y is 70° and x is 35°.
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GEOMETRY HELP ASAP
F (x,y) = (...,...)
1. y or -x
2. -x or y
The function which can be the reflection along y-axis will be F(-x, y).
A function may be defined as an expression in which for every input variable x there is only one output variable y. The input variable is known as independent variable and output variable is known as dependent variable. Reflection may be defined as the changes which occur on a graph for a given curve. If reflection of a point occurs along x axis, then there will be change in the y coordinate and if reflection along y axis, then there will be change in the x coordinate. We have a function F(x, y) and we need to find reflection along y axis so there will be change in the x coordinate, so new function will be F(-x, y).
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What is the average rate of change of the equation g(x)=−x2+2x−4 from x = 2 to x = 5
The average rate of change of the equation g(x) =−x²+2x−4 from x = 2 to x = 5 is -15 .
The average of change of the function f(x) from x=a to x=b is given by the formula
Average rate of change = (f(b)-f(a))/(b-a)
In the question ,
it is given that
the function is g(x) =−x²+2x−4
we need to find g(2) and g(5) .
g(2) = −(2)²+2(2)−4
= -4 + 4 -4
= -4
g(5) = −(5)²+2(5)−4
= -25 +10 -4
= -15 -4
= -19
So , Average rate of change = (g(5) - g(2))/(5-2)
Substituting the values , we get
Average rate of change = (-19 - (-4))/3
= (-19+4)/3
= -15/3
= -5
Therefore , the average rate of change of the equation g(x) =−x²+2x−4 from x = 2 to x = 5 is -15 .
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Rewrite 72.3 + (-39.1) by breaking up each of the place values. In this case, the place values are tens, ones, and tenths.
72.3 - 39.1 = 4 tens - 7 ones - 2 tens is the correct order after rewriting.
Given the formula 72.3 + (-39.1)
removing the parentheses:
= 72.3 + (-39.1) (-39.1)
= 72.3 - 39.1
converting decimal numbers to place values
72.3 = 7tens plus 2units plus 3tenths
72.3 = 7(10) (10)
+2(1)+3(1/10)
72.3 =70+2+0.3
Similarly, 39.1
39.1 = 3tens plus 9units plus 1tenth
39.1 = 3(10)+9(1)+1(1/10)
39.1 =30+9+0.1
72.3 - 39.1 = 70+2+0.3 - (30+9+0.1)
72.3 - 39.1 = 70+2+0.3 - 30-9-0.1
72.3 - 39.1 = 70-30+2-9+0.3-0.1
72.3 - 39.1 = 40 - 7 +0.2
Hence after rewriting we get 72.3 - 39.1 = 4 tens - 7 ones - 2 tens
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the brain volumes () of 50 brains vary from a low of to a high of . use the range rule of thumb to estimate the standard deviation s and compare the result to the exact standard deviation of , assuming the estimate is accurate if it is within 15
The estimated standard deviation from the range rule is 145.5 cm3.As it is 29.8 cm3 smaller than the exact standard deviation, we consider that the estimation is not accurate enough.
Generally, brain volumes which are smaller than 921.1 cm3 can be considered significantly low and bigger than 1417.5 cm3 can be considered significantly high. Hence, brain volume of 1457.5 cm3 is bigger than the expected maximum, so it can be considered significantly high.
The calculation goes like this,
According to the range rule, the standard deviation and range, or the distance between the maximum and smallest value, are roughly inversely proportional:
[tex]s=R/4[/tex]
If we have a sample of 50 brains volumes, and they range from 910 cm3 to 1492 cm3, we can estimate the standard deviation as:
[tex]s=max-min/4[/tex]
s=1492-910/4=582/4=145.5
The exact standard deviation is 175.3 cm3.The difference is 175.3-145.5=29.8 cm3, so the estimation is not accurate enough.
The range rule of thumb states that we should anticipate a maximum value that is approximately two standard deviations above the mean and a lowest value that is approximately two standard deviations below the mean. The expected ranges are as follows given our mean volume of 1169.3 cm3 and standard deviation of 124.1 cm3:
Min= M-2s=1169.3-2*124.1=921.1
Max=M+2s=1169.3+2*124.1=1417.5
The brain capacity of 1457.5 cm3 can be regarded as significantly high because it is higher than the predicted maximum.
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Which answer is an equation in point-slope form for the given point and slope?
Point: (5, 9); Slope: 2
Responses
y−9=2(x−5)
y−5=2(x+9)
y−9=2(x+5)
y+9=2(x−5)
The equation which forms the correct slope-point form equation is
y - 9 = 2( x - 5). Thus, option (1) is the answer.
The point-slope form is a method that uses the slope of the line and a random coordinate on any point of the line to create an equation of that line.
The equation in the point-slope form is written in the format: [tex]y-y_{1}=m(x-x_{1})[/tex] , where m is the slope and [tex]x_{1}[/tex] and [tex]y_{1}[/tex]are the coordinates of the point on the line.
The given slope is 2, the x-coordinate is 5, and the y-coordinate is 9. There will be no addition symbol in the equation. There is only a subtraction of the coordinates in the equation form. Since options 2, 3, and 4 have addition signs, they do not show the correct equation.
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In an isosceles triangle ABC, the measure of vertex angle C is 30° more than the measure of each base angle. Find the measure of each angle of the triangle
Answer:
30 + x + x + x = 180
so, 30 + 3x = 180
sub 30 on both sides
3x = 150
divide 3 on both sides
x = 50
given six people how many combinations of three are possible if the order does NOT matter
Answer:
20 Combos
Step-by-step explanation:
6C3 = 6! / ( 3! * 3!) = 20 COMBOS
an acorn is falling from 13 feet in the air if it descends 4.8 feet every second write and solve the equation to determine how long it will take for the acorn to be 1 foot above the ground
It will take 6 seconds for the acorn to be 1 foot above the ground.
What is linear equation?A linear equation is an algebraic equation of the form y=mx + b, where m is the slope and b is the y-intercept, and only a constant and a first-order (linear) component are included. The variables in the preceding equation are y and x, and it is occasionally referred to as a "linear equation of two variables."
A typical form linear equation is, for instance, 2x+3y=5. When an equation is provided in this format, finding both intercepts is rather simple (x and y).
Given:
acorn is falling from 13 feet
Every seconds it descends = 4.8 feet
let us assume that the equation for the distance between the acorn from the ground is
x =13 - 4.8 y
where is y is time in seconds and x is the distance
if x = 1 foot
1 = 13 -4.8y
-12 = -4.8y
y = -12 / -4.8
y = 2.5 seconds
Hence, it will take 6 seconds for the acorn to be 1 foot above the ground.
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Please simplify these equations
Answer:
a) 81
b) 16807
c) 1010000000
d) 390630
These are all correct. I checked.
45 is divisible by which of the following numbers? (1 point) 1, 5, 8 1, 2, 3 1, 2, 5 1, 3, 5, 9
Answer:
1,3,9,5
Step-by-step explanation:
Answer:
9, 5, 1, 3
Step-by-step explanation:
i forgot my vocabulary
But i still know decent engrish
Given the equation 6(8g + 2) + 45 = 153, write a scenario similar to Parts A and B that could be represented by the equation. Solve for g and explain what each number in the equation represents, including the solution.
The value for g is 2, meaning that each family bowled 2 games.
How to solve linear equations?
Given that the largest power of the variable (or pronumeral) in these equations is 1, linear equations are also known as first-degree equations. A line on the quadratic system is represented by a linear equation. This equation's general form is axe + b = 0, where a, b, and x are all integers and x is the variable. The y-axis is parallel to this form of equation's single solution, which it symbolizes.
The steps that should be followed while solving linear equations are listed below:
1) We must first determine which variable we need to isolate.
2) Next, make a distinction between variables and constants.
3) Arrange the constants on the right and the variables on the left.
4) Using established axioms, we carry out algebraic operations to determine the variable's value.
Given, the equation is 6(8g + 2) + 45 = 153
Following the steps in the available literature, we have the equation as:
6(8g + 2) + 45 = 153 ⇒ 48g + 12 + 45 = 153 ⇒ 48g = 153 - 45 - 12 = 96
⇒ g = 96/48 ⇒ g = 2
Thus, g as suggested will determine number of times each family bowled.
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Eric has 130 coins consisting of Nickels and quarters. The coins combined value comes to $15.90. Find out how many of each coins Eric has.
SOLUTION
Given the question in the image, the following are the solution steps to answer the question.
STEP 1: Represent the two coins
Let N represents Nickels
Let Q represents quarters
STEP 2: Get the first equation
Equation 1: Eric has 130 coins consisting of quarters and nickels. This is given as:
[tex]N+Q=130------Equation\text{ 1}[/tex]STEP 3: Get the second equation
The total value of all of the coins is $15.90. Each quarter represents .25 and each nickel represents .05, then the second equation is:
[tex]0.25Q+0.05N=15.90------Equation\text{ 2}[/tex]STEP 4: Multiply Equation 2 by 100 to remove the decimals
[tex]\begin{gathered} Equatio\text{ 2}\times100\text{ will give:} \\ 25Q+5N=1590----Equation\text{ 3} \end{gathered}[/tex]STEP 5: Make N the subject of Equation 1
[tex]undefined[/tex]a line passes through the point (1,6) and has a slope of 7. Write an equation in point-slope form for this line.
Please answer quickly.
Answer:
[tex]y-6=7(x-1)[/tex]
Step-by-step explanation:
The equation of a line with slope [tex]m[/tex] and that passes through [tex](x_1, y_1)[/tex] in point-slope form is [tex]y-y_1=m(x-x_1)[/tex].
Select the equation of the line that goes through point (4,−2) and is parallel to the equation 2x+5y=15.
A. -2/5x + y= -18/5
B. -5/2x + y= -12
C. 2/5x + y= -2/5
D. 5/2x + y= 8
4.17. for a standard normal random variable z, compute (a) p(z ≥ 0.99) (b) p(z ≤ −0.99) (c) p(z < 0.99) (d) p(|z| > 0.99) (e) p(z < 10.0) (f) p(z > 10.0) (g) with probability 0.9, variable z is less than what?
Answer: 1.28
Step-by-step explanation:
1. P(Z > 0.99) = 1 -Ф (0.99) = 1-0.8389 = 0.1611
2.P(Z <-0.99) = Ф(-0.99) = 0.161 (known that from [a] by symmetry)
3.P(Z <0.99) = Ф(0.99) = 0.8389
4. P(Z >0.99) = P(Z <-0.99) + P(Z > 0.99) = 2(0.1611) = 0.3222
The value z = 10.0 is out because it is too large. On comparing with the largest value, z = 3.99,
we get
5. P(Z < 10.0) > P(Z <3.99) = 1.0
6.P(Z > 10.0)<P(Z > 3.99) =10.0
7. On solving the equation
Ф(Z) = 0.9
for Z.
In Table A4, find the value of z corresponding to the probability 0.9. The nearest value is Ф(1.28) = 0.8997. Therefore, z ≈ 1.28
what is the answer to this? :(5x^4)^3
Answer:
it is 25 or 35
Step-by-step explanation:
what is the equivalent ratios of 500:10?
Step-by-step explanation:
1. Transform by dividing both sides by Highest common factor which is 10 in this case.
2. Final answer is 50:1
91.276-4.319
to the nearest whole number
Answer:
that's a good question
Step-by-step explanation:
what are the answer to these questions
( 1 ) The y-intercept for the first graph is 50. The correct option is B.
( 2 ) The y-intercept for the second graph is 12. The correct option is C.
( 3 ) The y-intercept for the third graph is 0. The correct option is C.
What is coordinate geometry?A coordinate plane is a 2D plane that is formed by the intersection of two perpendicular lines known as the x-axis and y-axis. A coordinate system in geometry is a method for determining the positions of the points by using one or more numbers or coordinates.
The y-intercept of the first graph:-
y = mx + c
m= ( y₂ - y₁ ) / ( x₂ - x₁ )
m = ( 350 - 50 ) / ( 4 ) = 75
y = mx + c
50 = 75 x 0 + c
c = 50
The y-intercept of the second graph:-
y = mx + c
m= ( y₂ - y₁ ) / ( x₂ - x₁ )
m = ( 30 - 12 ) / ( 4 ) = 4.5
y = mx + c
12 = 4.5 x 0 + c
c = 12
The y-intercept of the third graph:-
y = mx + c
m= ( y₂ - y₁ ) / ( x₂ - x₁ )
m = ( 6 - 3 ) / ( ( 8 - 4 ) = 3 / 4
y = mx + c
3 = ( 3 / 4) x 4 + c
c = 0
Therefore, the y-intercept of all the graphs is calculated above.
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the perimeter of triangle abc is 90. if ab= 5x+1, bc= 2x+13 and ac = x+4 what type of triangle is abc
As all the length of each side of given triangle are unequal so the given triangle is scalene triangle
Perimeter of Triangle:-A triangle's perimeter is defined as the total length of its boundary.
The perimeter of a triangle is the sum of all three sides.
Here given that there is a triangle name ABC and the triangle ABC has the perimeter of 90.
∴ Sum of sides of triangle ABC will equal to the perimeter of triangle ABC
∴ AB + BC + AC = 90
As we have AB = 5x + 1, BC = 2x + 13, AC = x + 4
∴ 5x + 1 + 2x + 13 + x + 4 = 90
∴ 8x + 18 = 90
∴ 8x = 90 - 18
∴ 8x = 72
∴ x = 72/8
∴ x = 9.
So we get AB = 5x + 1 = 5(9) + 1 =45 + 1 = 46.
BC = 2x + 13 = 2(9) + 13 = 18 + 13 = 31.
AC = x + 4 = 9 + 4 = 13.
As all the length of each side are unequal so the given triangle is scalene triangle as an scalene triangle is a triangle in which all three side lengths are different and all three angle measurements are different. However, the sum of all interior angles is always equal to 180 degrees. Therefore, it satisfies the angle sum property of triangles.
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Write an equation for a parabola that passes through the point (2,2) and has a vertex of (3,1)
The equation of the parabola will be;
y = (x - 3)² + 1
What is mean by Parabola?
A parabola is a set of points in the plane which are equidistant from the directrix and focus.
Given that;
The vertex of the parabola = (3 , 1)
A parabola passes through the point (2,2).
Now,
Since, The equation of parabola in vertex form is;
y = a (x - h)² + k
Where, (h , k) are vertex of the parabola.
So, The equation of parabola with vertex (3, 1) will be;
y = a (x - 3)² + 1
And, It passes through the point (2,2).
So we substitute the value of (2, 2) in place of (x, y) as;
2 = a (2 - 3)² + 1
2 = a + 1
a = 2 - 1
a = 1
Substitute the value of a in above equation, we get;
The equation of parabola as;
y = (x - 3)² + 1
Therefore, The equation of the parabola will be;
y = (x - 3)² + 1
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