Answer:
V = 756π cm³
Step-by-step explanation:
The solid shape consists of a cone and a semi sphere
To calculate the volume of the semi sphere we require to find its radius r
Given
volume of cone = 270π , then
\(\frac{1}{3} \) πr²h = 270π ( multiply both sides by 3 to clear the fraction )
πr²h = 810π ( divide both sides by π )
r²h = 810
from diagram h = 10
10r² = 810 ( divide both sides by 10 )
r² = 81 ( take square root of both sides )
r = \(\sqrt{81} \) = 9
Volume of semi sphere = \(\frac{2}{3} \) πr³
= \(\frac{2}{3} \) π × 9³
= \(\frac{2}{3} \) π × 729
= 2π × 243
= 486π
The volume (V) of the solid shape
V = 270π + 486π = 756π cm³
Answer:
\(v=756\pi cm^{3} \)
Step-by-step explanation:
The radio of the cone:
\(270=\frac{1}{3} r^{2} (10)\)
\(r^{2} =\frac{3(270)}{10} =810/10\)
\(r^{2} =81\)
\(r=\sqrt{81} =9\)
The half sphere (has the same radio):
\(v=\frac{2}{3} \pi (9)^{3} =486\pi \)
The volume of the solid shape:
\(v=270\pi +486\pi =756\pi cm^{3} \)
Hope this helps
The line plots represent data collected on the travel times to school from two groups of 15 students.
A horizontal line starting at 0, with tick marks every two units up to 28. The line is labeled Minutes Traveled. There is one dot above 4,6,14, and 28. There are two dots above 10, 12, 18, and 22. There are three dots above 16. The graph is titled Bus 47 Travel Times.
A horizontal line starting at 0, with tick marks every two units up to 28. The line is labeled Minutes Traveled. There is one dot above 8, 9,18, 20, and 22. There are two dots above 6, 10, 12,14, and 16. The graph is titled Bus 18 Travel Times.
Compare the data and use the correct measure of variability to determine which bus is the most consistent. Explain your answer.
Bus 18, with an IQR of 16
Bus 47, with an IQR of 24
Bus 18, with a range of 16
Bus 47, with a range of 24
The bus that is the most consistent, given the data collected on travel times to school from two groups of students is C Bus 18, with a range of 10
How to find the consistent bus ?To determine which bus is the most consistent, we should use the interquartile range (IQR) as the measure of variability. The IQR measures the spread of the middle 50% of the data, which makes it less sensitive to outliers compared to the range.
Bus 47:
Median (Q2): 16
Q1: 10
Q3: 22
IQR = Q3 - Q1 = 22 - 10 = 12
Bus 18:
Median (Q2): 12
Q1: 8
Q3: 18
IQR = Q3 - Q1 = 18 - 8 = 10
Bus 18 has a smaller IQR than Bus 47 (10 vs. 12), which means the travel times for Bus 18 are more consistent.
Note: Figures might be different due to options being for different variant but Bus 18 is the most consistent.
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Its about fractions please help me
The times the 7 in the Susan's scores is greater than Sarah's score is 100 times
How many times is the 7 in the scores greater than the otherFrom the question, we have the following parameters that can be used in our computation:
Susan = 87, 325
Sarah = 46, 175
The values of the 7's in their scores are
Susan = 7, 000
Sarah = 70
So, we have
Number of times = 7000/70
Evaluate
Number of times = 100
Hence, the number of times is 100
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Please hurry!!!
given g(x) = -x - 2, find g(3)
Answer:
-5
Step-by-step explanation:
Plug in 3 as x:
g(x) = -x - 2
g(3) = -3 - 2
g(3) = -5
You invest $12,000 in an account that pays simple interest of 3.4%
each year. Find the interest earned after 10 years.
If we invest $12,000 in an account that pays simple interest of 3.4%
each year. 4080 is the interest earned after 10 years.
What is Simple Interest?Simple interest is the cost of borrowing money without accounting for the effects of compounding.
Given that if we invest $12,000 in an account that pays simple interest of 3.4% each year. The interest earned after 10 years we have to calculate.
A=P(1+rt)
A= Final Amount
P=Principle amount=12000
r = rate of interest=3.4%
t is time =10 years
Substitute these values in Formula.
Convert 3.4% to decimal number by dividing with 100.
A=12000(1+0.034(10))
A=12000(1+0.34)
A=12000(1.34)
A=16080
So intial amount-Final amount
12000-16080
4080
Hence the interest earned after 10 years is 4080.
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Write the expression that represents the sum of
double a number and triple a number.
Answer: let x = the "number"
2x + 3x is the expression
Step-by-step explanation:
To purchase $14,500 worth of restaurant equipment for her business, Debra made a down payment of $1300 and took out a business loan for the rest. After 2 years of paying monthly payments of $585.04, she finally paid off the loan.
(a) What was the total amount Debra ended up paying for the equipment (including the down payment and monthly payments)?
(b) How much interest did Debra pay on the loan?
The total amount Debra ended up paying for the equipment was $28,541.60 and the amount of interest Debra paid on the loan was $14,041.60
(a) To find the total amount Debra ended up paying for the equipment (including the down payment and monthly payments), we need to add the down payment to the total amount of the loan, and then add the total amount of the monthly payments made over the two years.
Total amount of the loan = $14,500 - $1,300 (down payment) = $13,200
Total amount paid = Down payment + Total amount of the loan + Total amount of monthly payments
Total amount paid = $1,300 + $13,200 + ($585.04 x 24) [since there are 24 monthly payments in 2 years]
Total amount paid = $1,300 + $13,200 + $14,041.60
Total amount paid = $28,541.60
Therefore, the total amount Debra ended up paying for the equipment (including the down payment and monthly payments) was $28,541.60.
(b) To find the amount of interest paid on the loan, we need to subtract the total amount borrowed from the total amount paid, and then subtract the down payment. This will give us the total amount of interest paid over the two years.
Total interest paid = Total amount paid - Total amount borrowed - Down payment
Total interest paid = $28,541.60 - $13,200 - $1,300
Total interest paid = $14,041.60
Therefore, the amount of interest Debra paid on the loan was $14,041.60.
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Write the slope-intercept form of the equation of the line
2x + 3y = 18
Answer:
y=-2/3x+18
Step-by-step explanation:
Slope intercept form equals y=mx+b
Step 1 move 2x to the other side. 3y=-2x+18
Step 2 divide by 3. y=-2/3x+18
The area of the Sea of Japan is 1.007 × 106 km2. The area of the Southern Ocean is 2.0327 × 107 km2. Find the total area. Write the final answer in scientific notation with the correct number of significant digits.
2.1334 × 107 km2
3.0397 × 1013 km2
2.133 × 107 km2
3.040 × 1013 km2
The total area of the Sea of Japan and the Southern Ocean is 2.1334 × 10⁷ km². The correct option is the first option 2.1334 × 10⁷ km²
Calculating the total area of the Sea and OceanFrom the question, we are to calculate the total area of the sea and ocean
From the given information,
"The area of the Sea of Japan is 1.007 × 106 km²"
and
"The area of the Southern Ocean is 2.0327 × 107 km²"
Thus,
The total area of the sea and ocean = 1.007 × 10⁶ km² + 2.0327 × 10⁷ km²
The total area of the sea and ocean = 0.1007 × 10⁷ km² + 2.0327 × 10⁷ km²
The total area of the sea and ocean = 2.1334 × 10⁷ km²
Hence, the total area is 2.1334 × 10⁷ km²
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A triangular pyramid is formed from three right triangles as shown below.
Use the information given in the figure to find the length AC.
If applicable, round your answer to the nearest whole number.
The lengths on the figure are not drawn accurately.
A
41
B
85
Answer:
76 units
Step-by-step explanation:
You want the length of AC in the given triangular pyramid.
Pythagorean theoremThe Pythagorean theorem can be used to find the lengths of AD and CD.
AD² + 40² = 41²
AD² = 41² -40² = 81 . . . . . = 9²
and
CD² +40² = 85²
CD² = 85² -40² = 5625 . . . . . = 75²
It can also be used to find AC:
AD² + CD² = AC²
81 + 5625 = AC²
AC = √5706 = 3√634 ≈ 76
The length of side AC is about 76 units.
__
Additional comment
The Pythagorean theorem tells you the square of the hypotenuse is the sum of the squares of the legs of a right triangle.
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please help!! need it fast, will give brainliest!! and pls show work !!
Find the measure of angle AEB
Answer:
An acute angle
Step-by-step explanation:
An acute angle is smaller than an obtuse ad right angle.
hope this helps and hope it was right 'cause I really don't know what you meant. :)
After working satisfactorily for 6 months, Collin will be eligible for a 7% raise. How much will Collin's
gross salary be, after her raise, for each 2-week pay period? His current gross salary is $1,083.34.
Collin's gross salary, after the 7% raise, for each 2-week pay period, will be approximately $1,159.17.
To calculate Collin's gross salary after the 7% raise for each 2-week pay period, we need to find the raise amount and add it to his current gross salary.
Collin's current gross salary is $1,083.34.
To find the raise amount, we multiply his current gross salary by 7% (or 0.07):
Raise amount = $1,083.34 \(\times\) 0.07
= $75.8338 (rounded to two decimal places)
Now, we add the raise amount to his current gross salary to find the new gross salary:
New gross salary = $1,083.34 + $75.8338 = $1,159.1738 (rounded to two decimal places)
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Which fraction is equivalent to 2/-6
Answer:
-1/3
Step-by-step explanation:
Meaning of part of a whole
Answer:
Step-by-step explanation:
a portion or division of a whole that is separate or distinct; piece, fragment, fraction, or section; constituent: the rear part of the house;to glue the two parts together.
Please thank me!
Question 4 of 10
What numbers are missing from the pattern below? Enter your answer, using
a comma to separate each number.
84,4, 33, 49,?,?,?,?, 84, 4, 33, 49
Use the table to work out the values of a, b, c, and d.
20
= 22 + 3
2
_3
2
2
a
1
b
0
-2
1
2
2
с
3
d
a =
b =
с
= d
Step-by-step explanation:
What is the range of the function y=3√x+8?
O-∞
O-8
O 0≤y<∞
O 2≤y<∞
Answer: 0 ≤ y < ∞
Step-by-step explanation:
First, let us graph the function. See attached.
-> If I graphed the formatting of the square root sign incorrectly, please let me know so I can fix the answer.
The range of the function is all of the function's output values. In this case, all of the y values.
0 ≤ y < ∞
A rectangular photograph is 7 inches long and 6 inches wide. The photograph is framed using a material that is x inches wide. If the area of the frame and the photograph combined is 156 square inches, what is the width of the framing material?
The width of the framing material is 19inches
What is area of shapes?The area of a shape is the “space enclosed within the perimeter or the boundary” of the given shape. We calculate the area for different shapes using math formulas. Area is measured in square unit.
The area of a rectangle is Length × width
The Area of the photograph is L×W = 7×6= 42square inches
when a frame of x inches wide is added to the size of the photograph, the total width of the of the framed photograph is 6+x
The area of the framed photograph = 7(6+x)= 156
42+ 7x= 156
7x= 156-42
7x=114
divide both sides by 7
x= 114/7
x=16.3 inches
therefore the width of the frame is 16.3 inches
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express the sum 20+2.10²+1/2+1/2²+1/2³ as a decimal
Answer:
Step-by-step explanation:
20 + 2 * 10 square + 1/2 + 1/4 +1/8
20 + 2*100 + ( lcm of 2,4,8)
20+200+ 4+2+1/8
220 + 7/8
1760 + 7/8
1767/8
= 220.875
45-428-(15+3) 2+2
45-428(18)4
45-428×18×4
45-428×72
45-30,816
-30,771
Answer:
Have u answered it already or u want help or u want to be sure of the answer
What is the answer please I need it
four hundred
eighty three million, six hundred thousand miles.
Answer:
400
83 000 000
600,000
-----------------------
483,600,000 miles
What is the volume, in cubic inches, of one cube with an edge length of 1/3 inch
Answer:
1/27 cubic in.
Step-by-step explanation:
1/3*1/3*1/3= 1/27
The volume of the cube if, its edge length is 1/3 inch is 1 / 27 inches³.
What is volume?The capacity occupied by a three-dimensional solid shape is known as volume. It is difficult to visualize in any shape, yet it may be compared among shapes. For instance, a compass box has a larger volume than an eraser placed inside of it.
Given:
The length of the edge = 1 / 3 inches,
Calculate the volume of the cube as shown below,
The volume of the cube = The length of the edge × The length of the edge × The length of the edge
The volume of the cube = 1 / 3 × 1 / 3 × 1 / 3
The volume of the cube = 1 / 27
Thus, the volume of the cube is 1 / 27 inches³.
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A large vat has a faucet to allow liquid to enter the vat and a drain to allow liquid to leave the vat.
Each minute, the faucet allows 40 1/5 gallons of liquid to enter the vat, and the drain allows 44 3/4 gallons to leave the vat.
What is the change in the amount liquid in the vat after 12 minute?
After some mathematical operations, the rate of change is -273/5.
What are mathematical operations?An operation is a function in mathematics that transforms zero or more input values into a clearly defined output value. The operation's arity is determined by the number of operands. The rules that specify the order in which we should solve an expression involving many operations are known as the order of operations.PEMDAS stands for Parentheses, Exponents, Multiplication, Division, Addition Subtraction (from left to right).So, the rate of change will be:
12(40⅕) - 12(44¾)Evaluate as follows:
12(40⅕) - 12(44¾)12(201/5) - 12(179/4)12 × 201/5 - 12 × 179/42,412/5 - 5372,412 - 5(537)/52412 - 2,685/5-273/5Therefore, after some mathematical operations, the rate of change is -273/5.
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Test the hypothesis using the P-value approach. Be sure to verify the requirements of the test. H0: P=0.93 versus H1:p≠0.93 n=500, x=450, a=0.05 Is np0(1-P0) ≥10? Select the correct choice below and fill in the answer box to complete your choice. A. No because np0(1-P0) equals__ B. Yes, because np0(1-P0) equals__
Using the Central Limit Theorem, it is found that these conditions are required to avoid the high variability associated with small samples.
What does the Central Limit Theorem states?It states that for a proportion p in a sample of size n, the sampling distribution of sample proportion is approximately normal with mean and standard deviation , as long as\(np\geq 10\) and \(n(1-p)\geq 10\)From the equation of the standard error, we could see that if one of the conditions is not respected, the standard error would be very high, indicating a low accuracy of the estimate, hence it is found that these conditions are required to avoid the high variability associated with small samples.\(s=\sqrt{p(1-p)/n}\)
If we compare the p value and using the significance level given \(\alpha=0.05\) we have\(pv > \alpha\) so we can conclude that we have enough evidence to FAIL to reject the null hypothesis, and we can said that at 5% of significance the proportion is not significantly different from 0.77.\(p v=2*p(z < -0.531)=0.595\)
1) Data given and notation
n=500 represent the random sample taken
X=380 represent the number of people with some characteristic
estimated proportion of adults that said that it is morally wrong to not report all income on tax returns
is the value that we want to test
represent the significance level
Confidence=95% or 0.95
z would represent the statistic (variable of interest)
represent the p value (variable of interest)
2) Concepts and formulas to use
We need to conduct a hypothesis in order to test the claim that the true proportion is 0.7 .:
Null hypothesis:
Alternative hypothesis:
When we conduct a proportion test we need to use the z statistic, and the is given by:
(1) The One-Sample Proportion Test is used to assess whether a population proportion is significantly different from a hypothesized value Check for the assumptions that he sample must satisfy in order to apply the test
a)The random sample needs to be representative: On this case the problem no mention about it but we can assume it.
b) The sample needs to be large enough
3) Calculate the statistic
\(z=\frac{0.76 - 0.77}{\sqrt{\frac{0.77(1-77)}{500} } =0.531}\)
Since we have all the info requires we can replace in formula (1) like this:
4) Statistical decision
It's important to refresh the p value method or p value approach . "This method is about determining "likely" or "unlikely" by determining the probability assuming the null hypothesis were true of observing a more extreme test statistic in the direction of the alternative hypothesis than the one observed". Or in other words is just a method to have an statistical decision to fail to reject or reject the null hypothesis.
The significance level provided \(\alpha =0.05\)The next step would be calculate the p value for this test.
Since is a bilateral test the p value would be:
\(pv=2*p(z < -0.0531)=0.595\)
If we compare the p value and using the significance level given we have so we can conclude that we have enough evidence to FAIL to reject the null hypothesis, and we can said that at 5% of significance the proportion is not significantly different from 0.77.
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find the alternative interior angles in each figure
Answer:
Step-by-step explanation:
8 ft. 3 ft. is what in geometry
In geometry, 8 ft. 3 ft. specifies the dimension of an object. That is the length and the width.
What does 8 ft. 3 ft means means in geometry?
8 ft. 3 ft. is a dimension, specifically a length and a width. It could refer to the size of a rectangular object, such as a room or a piece of furniture.
In geometry, such a dimension is often used to calculate the area of the rectangle.
The area of a rectangle can be found by multiplying its length by its width.
So, in this case, the area of the rectangle with dimensions 8 ft. * 3 ft. would be 8 ft * 3 ft = 24 ft².
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Shannon is making identical balloon arrangements for a party. She has 32 maroon balloons, 24 white balloons, and 16 orange balloons. She wants each arrangement to have the same number of each color. What is the greatest number of arrangements that she can make if every balloon is used?'
Answer:
4
Step-by-step explanation:
16 = 2 * 2 * 2 * 2
24 = 2 * 2 * 2 * 3
32 = 2 * 2 * 2 * 2 * 2
HCF = 2 * 2 * 2 = 8
Possible common factors are 1 , 2 , 4 , 8
Ratio in which flowers to be used 16:24 : 32
= 2 : 3 : 4
4 Possible arrangement
Orange White Baloon
2 3 4
4 6 8
8 12 16
16 24 32
the phone company charges $33 for having a smartphone plus $9.95 a month for 2gb. IF mark has only $146.43 to spend on a phone, how many months can he have the phone? inequalities
The number of months Mark can have the phone is given by the equation
A = 11.4 months
What is an Equation?Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given data ,
Let the number of months be represented as = A
Now , the equation is
Now , the total amount with Mark = $ 146.43
The initial amount for the smartphone = $ 33
The amount per month for 2GB is = $ 9.95
So , the amount for A months = $ 9.95 ( A )
So , the equation will be
Initial amount for the smartphone + the amount for A months = total amount with Mark
Substituting the values in the equation , we get
33 + 9.95 ( A ) = 146.43 be equation (1)
On simplifying the equation , we get
Subtracting 33 on both sides of the equation , we get
9.95 ( A ) = 113.43
Divide by 9.95 on both sides of the equation , we get
A = 11.4 months
Therefore , the value of A is 11.4 months
Hence , the number of months is 11.4 months
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A fish tank has 240240240 quarts of water. Levi adds another 120120120 quarts to the tank.
How many gallons of water are in the fish tank? HURRY PLS :(
Answer:
90090090 quarts to fill the fish tank
Algebraic expression for 4less then 3x
When 'x' is 5, the Algebraic expression 3x - 4 evaluates to 11.
To find the algebraic expression for "4 less than the product of 3 and some number," let's break it down step by step.
First, let's define the unknown number as 'x.' Since the problem states "the product of 3 and some number," we can express this as 3 * x or simply 3x.
Next, we want to subtract 4 from this product. The phrase "4 less than" indicates subtraction, so we subtract 4 from 3x. This can be represented as 3x - 4.
In summary, the algebraic expression for "4 less than the product of 3 and some number" is 3x - 4, where 'x' represents the unknown number.
To calculate the value of this expression for a specific value of 'x,' you substitute that value into the expression and simplify. For example, if 'x' is 5, you would substitute 5 into the expression:
3(5) - 4
This simplifies to:
15 - 4 = 11
So, when 'x' is 5, the expression 3x - 4 evaluates to 11.
In general, the algebraic expression allows us to represent a mathematical relationship between quantities using symbols and operations. By substituting specific values into the expression, we can calculate the corresponding results.
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Note the complete question:
Algebraic expression for 4 less than the product of 3 and some number
What is the algebraic expression for "4 less than the product of 3 and some number?
Please help me understand the meaning of how to calculate.