Answer:
C. 50
Step-by-step explanation:
180 - (70 + 60)
180 - 130
50, so C
Hope that helps!
-Sabrina
PLEASE HELP IM SERIOUSLY STUCK E
Answer: 2.12 × \(10^{-3}\)
The coefficient (in green) will be 2.12
Step-by-step explanation:
Scientific notation is written by multiplying the number by a power of 10. This number is a number between 1 and 10.
Since this is a smaller number, we will be multiplying it by a power of 10 to a negative number.
To get this value to a number between 1 and 10, we must multiply it by 10 3 times (also shown as 10³) which gives us 2.12.
To get back to the original value, we multiply this by \(10^{-3}\). This gives us our answer.
Create the translated function from y=|x| that has a shrink of ( 1)/(4), a reflection over the x-axis and a vertical shift of 8 units down.
The translated function from y=|x| that has a shrink of ( 1)/(4), a reflection over the x-axis and a vertical shift of 8 units down is y=-|(1)/(4)x|-8.
If f(x) is a function, then a translated function can be defined by adding or subtracting a constant value a to the variable x inside the function, resulting in a new function g(x) = f(x-a) or g(x) = f(x+a), respectively.
To create the translated function from y=|x| we can follow these steps:
1. Shrink the function by multiplying the input by (1)/(4): y=|(1)/(4)x|
2. Reflect the function over the x-axis by multiplying the output by -1: y=-|(1)/(4)x|
3. Shift the function 8 units down by subtracting 8 from the output: y=-|(1)/(4)x|-8,
Therefore, the translated function is y=-|(1)/(4)x|-8.
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The circumference of a circle is 22pi cm. What is the area, in square centimeters?
Answer:
Area = 121pi sq cm
Step-by-step explanation:
Circumference is the distance around the circle. The formula for circumference is:
C = pi•d
The question has the info in it that the circumference is 22pi.
C = 22pi
remember,
C = pi•d this means that the circle has a diameter (the d in the formula is diameter) 22cm.
The radius is half the diameter. The diameter is 22cm, so the radius is 11cm.
The formula for the area is:
Area = pi•r^2
= pi•11^2
= pi•121
= 121pi
The area is 121pi sq cm.
List and explain three different unconformities shown on this
figure. Explain your answer (15 points)
The figure shows three types of unconformities: an angular unconformity (A - A) with tilted and eroded layers, a non-conformity (B- B) between uplifted and underlying rocks, and a paraconformity (C - C ) with a smooth transition between sedimentary layers indicating a potential time gap.
Based on the information provided, the figure shows three different unconformities
(A - A) represents an angular unconformity:
This occurs when horizontally layered rocks (A) are tilted or folded, eroded, and then overlain by younger, undeformed rocks (A). The angular discordance between the older and younger layers indicates a significant period of deformation and erosion.
(B- B) represents a non-conformity:
A non-conformity occurs when igneous or metamorphic rocks (B) are uplifted and eroded, exposing the underlying, usually sedimentary, rocks (B). The boundary between the two types of rocks represents a significant time gap and a change in the geological history of the area.
(C - C) represents a paraconformity:
A paraconformity is a type of unconformity where there is a relatively smooth transition between parallel layers of sedimentary rocks (C - C). Unlike angular unconformities and non-conformities, paraconformities do not show significant tilting, folding, or erosion. The time gap between the two layers may still exist, but it is often difficult to distinguish due to the lack of obvious discontinuities.
In summary, an angular unconformity (A - A) shows significant tilting and erosion, a non-conformity (B - B) indicates an uplift and erosion of older rocks, and a paraconformity (C - C) represents a relatively smooth transition between parallel sedimentary layers with a potential time gap.
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--The given question is incomplete, the complete question is given below " List and explain three different unconformities shown on this
figure. Explain your answer (15 points) "--
timmy put $200,000 in a retirement account that earns 4.1% interest each year. find the amount earned after 5 year.
Answer:
$241000
Step-by-step explanation:
Use the formula I = Prt
I is interest (what you need to find first), P is principal (200,000), r is rate (4.1%), and t is time (5)
First convert the rate of 4.1% to a decimal by moving the decimal two places left.
4.1% = 0.041
Next plugin the numbers into the formula and multiply to find the interest.
I = 200000(0.041)(5)
I = 41,000
Finally you need to find the balance. To find the balance, add the interest to the principal.
B = 200000 + 41000
B = 241000
The chi-square value for a one-tailed (upper tail) hypothesis test at a 5% level of significance and a sample size of 25 is a. 33.196. b. 39.364. c. 36.415. d. 37.652.
The chi-square value for a one-tailed (upper tail) hypothesis test at a 5% level of significance and a sample size of n=25 is c. 36.415
What is chi-square?
Chi-square (χ²) is a statistical test that measures the relationship between categorical variables. It is used to determine if there is a significant association or independence between two variables based on observed frequencies compared to expected frequencies. The chi-square test is a statistical method used to determine if there is a significant association or independence between categorical variables based on observed and expected frequencies in a contingency table.
Degrees of freedom = n - 1
= 25 - 1
= 24
and alpha = 0.05
χ²⁽⁰°⁰⁵,²⁴⁾ = 36.415 …using chi-square table for right tail.
Therefore, the chi-square value for a one-tailed (upper tail) hypothesis test at a 5% level of significance and a sample size of n=25 is c. 36.415.
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What is the domain of f(x) = 5x – 7?
{x | x > –7}
{x | x < –7}
{x | x > 0}
{x | x is a real number}
Answer:
{x:x is a real number}
Since any value can replace x to give an integer.
{x:x is a real number}
L is the circle with the equation x²+y²=9
full question in photo :)
The values of the variables, a, b, and c obtained from the equation of the circle and the coordinates of the point P are;
a) a = 2
b = -2
c = 4
What is the general equation of a circle?The general equation of a circle is; (x - h)² + (y - k)² = r²
Where;
(h, k) = The coordinates of the center of the circle
r = The coordinates of the radius of the circle
The specified equation of a circle is; x² + y² = 9
The coordinates of the center of the circle, is therefore, O = (0, 0)
a) The coordinates of the points P and O indicates that the gradient of OP, obtained using the slope formula is; ((3·√3)/4 - 0)/(3/2 - 0) = ((3·√3)/4)/(3/2)
((3·√3)/4)/(3/2) = (√3)/2
The specified form of the gradient is; (√3)/a, therefore;
(√3)/a = (√3)/2
a = 2
The value of a is 2
b) The gradient of the tangent to a line that has a gradient of m is -1/m
The gradient of OP is; (√3)/2, therefore, the gradient of the tangent at P is -2/(√3)
The form of the gradient of the tangent at P is b/(√3), therefore;
-2/(√3) = b/(√3)
b = -2
The value of b is; -2
c) The coordinate of the point on the tangent, (0, (7·√3)/c) indicates
Slope of the tangent = -2/(√3)
((7·√3)/c - ((3·√3)/4))/(0 - (3/2)) = -2/(√3)
((7·√3)/c - ((3·√3)/4)) = (3/2) × 2/(√3) = √3
(7·√3)/c = √3 + ((3·√3)/4) = 7·√3/4
Therefore; c = 4
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PLEASE HELP MARKING BRAINLEIST JUST ANSWER ASAP
Answer:
To find the perimeter of a polygon, we add up the lengths of all the sides. In this case, we have a quadrilateral with sides of length y+8, y+7, y+7, and y+8.
Perimeter = (y+8) + (y+7) + (y+7) + (y+8)
Simplifying by combining like terms, we get:
Perimeter = 4y + 30
Therefore, the perimeter of the quadrilateral is 4y + 30.
Answer:
4y + 30
Step-by-step explanation:
To find:-
The perimeter of the given figure.Answer:-
Perimeter is simply the sum of all sides of any figure. Since here it is a quadrilateral, perimeter would be the sum of all four sides of it .
The four sides given to us are , y+7 , y+8 , y+7 and y+8. We can add them to find out the perimeter as ,
Perimeter = y+7 + y+8 + y+7 + y+8
Perimeter = 4y + 30
Hence the perimeter of the given figure is 4y+30 .
The outside temperature at midnight was 3.4°C. The temperature then changed at a constant rate of -0.78°C per hour for 8 hours. What was the outside temperature at 8:00 AM?
Answer:9.64
Step-by-step explanation:
smart :!
sarah recives an inheritance of 180000.she decided to invest this for the next five years as part of her saving plan for a housing deposit. The first year she puts the money in the bank and earns 5.75% per annum interest.How much does she have at the end of the first year ?
Answer: 10350
Step-by-step explanation:
Amount invested = Principal = 180,000
Interest rate = 5.75%
Time = 1 year
The interest that is earned at the end of the first year will be:
= PRT
= 180,000 × 5.75% × 1
= 180,000 × 0.0575 × 1
= 10350
It takes a copy machine 6 minutes to complete a job. How many minutes are left on a job if 2/3 of the job is now complete?
2/3 of the job was completed in 4 minutes. the job left will be completed in 2 minutes
Helpp pls I need an answer
Answer:
It would be 6
Step-by-step explanation:
Answer:
6
Step-by-step explanation:
5x + 2 - 7x = -10
Combine the two x's:
-2x + 2 = -10
Subtract 2 from both sides:
-2x = -12
Divide both sides by -2:
x = 6
PLEASE EXPLAIN!!!
You are planning to use a ceramic tile design in your new bathroom. The tiles are equilateral triangles. You decide to arrange the tiles in a hexagonal shape as shown. If the side of each tile measures 11cm, what will be the exact area of each hexagonal shape?
A: 3,993 cm^2
B: 181.5√3 cm^2
C: 132√3 cm^2
D: 33cm^2
The exact area of each hexagonal shape is 181.5sqrt(3) cm^2. Option B
To determine the exact area of each hexagonal shape formed by the equilateral triangles, we need to calculate the area of one equilateral triangle and then multiply it by the number of triangles that make up the hexagon.
The formula to calculate the area of an equilateral triangle is:
Area = (sqrt(3) / 4) * side^2
Given that the side of each tile measures 11 cm, we can substitute this value into the formula to find the area of one equilateral triangle:
Area = (sqrt(3) / 4) * (11 cm)^2
= (sqrt(3) / 4) * 121 cm^2
= 121sqrt(3) / 4 cm^2
Now, since the hexagon is formed by six equilateral triangles, we can multiply the area of one triangle by 6 to find the total area of the hexagon:
Hexagon Area = 6 * (121sqrt(3) / 4 cm^2)
= 726sqrt(3) / 4 cm^2
= 181.5sqrt(3) cm^2
Therefore, the exact area of each hexagonal shape is 181.5sqrt(3) cm^2.
The correct answer is B: 181.5√3 cm^2.
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each year, students in an elementary school take a standardizzed math test at the end of the school year. for a class of fourth-graders, the average score was 55.1 with a standard deviation of 12.3. in the third grade, these same students had an average score of 61.7 with a standard deviation of 14.0. the correlation between the two sets of scores is r
Answer:
y = 0.835x + 3.58
Step-by-step explanation:
A rectangle has a perimeter of 48 kilometers and a height of 10 kilometers. What is the
length of the base?
kilometers
We know, perimeter of the rectangle = 2(l +b)
where, l = length and b = breadth
Here, the perimeter of the rectangle is 48 kilometers and the height is of 10 kilometers. We can take height as the breadth.
=> Perimeter = 2(l + b)
=> 48 = 2(l + 10)
=> 48/2 = l + 10
=> l + 10 = 24
=> l = 24 - 10
=> l = 14 kilometers
A woodpecker pecked at a 17 m wooden pole until it cracked and the upper part fell with the top hitting the ground 10 m from the foot of the pole. Since the upper part had not completely broken off, the bird pecked away where the pole had cracked. How far was the bird above the ground?
Answer:
the woodpecker was 7m above the ground
The height where the bird pecked is 7m above the ground.
What is a numerical expression?A numerical expression is a mathematical statement written in the form of numbers and unknown variables. We can form numerical expressions from statements.
Given, A woodpecker pecked at a 17 m wooden pole until it cracked and the upper part fell with the top hitting the ground 10 m from the foot of the pole.
Therefore, If the length of the pole that fell down is 10m then the length of the remaining pole is,
= (17 - 10)m.
= 7m.
So, The bird pecked away where the pole had cracked is 7m.
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What is the domain and range of the function shown in the graph? A. Domain = {All real numbers}; Range = {y: -3 < y < 3} B. Domain = {All real numbers}; Range = {All real numbers} C. Domain = {x: -3 < x < 3}; Range = {All real numbers} D. Domain = {x: -3 < x < 3}; Range = {y: -3 < y < 3}
Answer:
B
Step-by-step explanation:
the graph is extending to infinity as it is in arrows and not dots
so the answer is
B. Domain = {All real numbers}; Range = {All real numbers}
What single decimal multiplier would you use to decrease by 18% followed by a 19% increase?
The multiplier for the 18% decrease would be 1-18 = 0.82
The multiplier for the 19% increase would be 1.19
The single multiplier would be: 0.82 x 1.19 = 0.9758
Answer:
0.9758
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Find the solution(s).
글 1x2 - 2x + 3 = 0
Answer:
um
Step-by-step explanation:
567
Can anyone help me :)
Answer:
Step-by-step explanation:
Item 3 Simplify $\left(s^{-5}\right)^3$ . Write your answer using only positive exponents.
Answer:
s^-15
Step-by-step explanation:
Given the expression
(S^-5)³
= s^5 × s^-5 × s^-5
= s^{-5-5-5}
= s^-15
Hence the resulting expression is s^-15
what is the answer Evaluate 6a2 if a = 4
Answer:
96
Step-by-step explanation:
6a²
Put a as 4.
6(4)²
Solve for power first.
6(16)
Multiply both terms.
= 96
Area of Square P = 17 cm2.
Area of Square R = 50 cm2.
Work out the area of Square Q.
Answer:
33
Step-by-step explanation:
(\((\sqrt{50})^{2} =(\sqrt{17})^{2}+a^{2} \\33=a^{2}\)
Pythagoras for that q side
\(\sqrt{33} *\sqrt{33} =33\)
the area
x+y=3
x^2+y^2=17
Solve the simultaneous equations
The possible solution set for the system is (- 1, 4) and (4, - 1).
What are algebraic expressions?In mathematics, an expression or mathematical expression is a finite combination of symbols that is well-formed according to rules that depend on the context.Mathematical symbols can designate numbers (constants), variables, operations, functions, brackets, punctuation, and grouping to help determine order of operations and other aspects of logical syntax.Given are the equations as -
x + y = 3
x² + y² = 17
Refer to the graph of the function attached. The points of intersection represents the possible solution set.
Therefore, the possible solution set for the system is (- 1, 4) and (4, - 1).
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Five players are given $10 each and asked to contribute any portion of it to a group account. They are also told that the total collection will be doubled and distributed equally among each of them. In this case, the players are likely to contribute __________.
Answer:
nothing
Step-by-step explanation:
424 divided by 3243.6
A rectangle garden measuring 13 m x 50 m it’s a have a gravel pathway of constant with built all around it. There is enough gravel to cover 80 meters. Answer and equality that represents all possible with (w) in meters of the pathway?
The width of the gravel pathway is 7 meters.
The length of the rectangular garden is 50m and the width is 13m. Let's assume the width of the gravel pathway to be w meters.
The length of the rectangular garden including the two widths of the pathway would be 50+2w meters, and the width including the two widths of the pathway would be 13+2w meters.
The area of the rectangular garden including the pathway is the product of the length and the width:
(50+2w)(13+2w)
We can now set up an equation using the area of the garden and the amount of gravel available:
(50+2w)(13+2w) - 50*13 = 80
Simplifying this equation gives:
4w^2 + 126w - 3196 = 0
This is a quadratic equation that we can solve for w using the quadratic formula:
w = (-b ± sqrt(b^2 - 4ac)) / 2a
where a = 4, b = 126, and c = -3196.
Plugging in these values and solving for w gives:
w = 7 or w = -22.75
Since the width of the pathway cannot be negative, the only valid solution is w = 7.
Therefore, the width of the gravel pathway is 7 meters.
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Acme Widgets had an order to process 250 widgets. The first unit required 200 minutes to assemble. Before starting, the company estimated the amount of time it would require to assemble all 250 widgets if they learned at an 85% rate. After assembling all 250 widgets, Acme realized they had learned at an 80% rate. How much time less than their estimate did Acme take? You should be able to compute the answer within plus or minus 2 hours. Group of answer choices A. 296.1 hours B. 126.6 hours C. 140.3 hours D. 91.2 hours E. 155.8 hours
The estimated time was 140.3 hours, but Acme took 91.2 hours less than the estimate.
1. The estimated time to assemble all 250 widgets, at an 85% rate, is given by:
250 x 200 / 0.85
= 294,117.65 minutes.
2. The actual time taken to assemble all 250 widgets, at an 80% rate, is given by:
250 x 200 / 0.80
= 312,500 minutes.
3. The difference between the estimated time and actual time is given by:
312,500 - 294,117.65
= 18,382.35 minutes.
4. The time in hours is given by: 18,382.35 / 60
= 306.37 hours.
= 306.37 - 166.07 = 140.3 hours
numeric calculations = 18,382.35 minutes / 60 minutes/hour = 306.37 hours - 294,117.65 minutes / 60 minutes/hour = 166.07 hours = 306.37 - 166.07 = 140.3 hours
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what does k= 9k=8k-6
Answer:
Alright, so we got k + 9k = 8k - 6.
This means that 10k = 8k - 6.
As a result, we have 2k = -6, and k = - 6/2 = -3
So, k = -3 :)