Answer:
16.25, ill help but it's hard and confusing
Solve 5(3C - 2) - 7c = 40 - 20
Answer:
Step-by-step explanation:
Answer:
C = 2 +
7c
15
Step-by-step explanation:
find the approximate area of the shaded region, given that the area of the sector is approximately 13.08 square units.
The area of the shaded region is 3915 units².
We have,
Area of the sector.
= 13.08 units²
Now,
To find the area of an isosceles triangle with side lengths 5, 5, and 4 units, we can use Heron's formula.
Area = √[s(s - a)(s - b)(s - c)]
where s is the semi-perimeter of the triangle, calculated as:
s = (a + b + c) / 2
In this case,
The side lengths are a = 5, b = 5, and c = 4. Let's calculate the area step by step:
Calculate the semi-perimeter:
s = (5 + 5 + 4) / 2 = 14 / 2 = 7 units
Use Heron's formula to find the area:
Area = √[7(7 - 5)(7 - 5)(7 - 4)]
= √[7(2)(2)(3)]
= √[84]
≈ 9.165 units (rounded to three decimal places)
Now,
Area of the shaded region.
= Area of the sector - Area of the isosceles triangle
= 13.08 - 9.165
= 3.915 units²
Thus,
The area of the shaded region is 3915 units².
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1. UV = 8 and WX = 5
TU=
WU=
TX=
TV=
All sides of a rhombus have equal measures, so TU = 8. Since a rhombus is a parallelogram, and the diagonals of a parallelogram bisect each other, WU = 10. The diagonals of a rhombus are also perpendicular, meaning they form right angles. Using the Pythagorean theorem, you can find the length of TX. (TX)^2 + (WX)^2 = (WT)^2. Substituting in known values, (TX)^2 + 25 = 64. Solving gives you TX = the square root of 39. TV is double the length of TX, so TV = 2 times the square root of 39.
Triangles ABC and XYZ are shown below. A student knows that AX and 2cm 22. The student claims that AABC is similar to AXYZ
Determine whether each statement below can be used as part of a justification for the claim that ABC is similar to AXYZ Select Yes or No for each statement.
Yes No
AC
A dilation of AABC by scale factor k =
through center results in A4'B'C where A'C = XZ
Triangle A'B'C, which results from a dilation of ABC such that A'c = XZ, is congruent to AXY2 by Angie-Side-Angle (ASA) O
There exists a sequence of rigid transformations and dilations that carries A4BC to AXYZ, so it follows that AABC is similar to AXYZ OO
sorry i couldn't answer tho
a. Find parametric equations and symmetric equations for the line passing through the points (-2, 4, 3) and (1, 2, 7).
b. At what point does this line intersect the yz-plane?
a) The parametric equations of the line are: x(t) = −2 + 3t, y(t) = 4 − 2t, z(t) = 3 + 4t and The symmetric equation of the line are: (x + 2)/3 = (y − 4)/−2 = (z − 3)/4
b) The line intersects yz-plane at (0, 8/3, 17/3)
The given points on the line are:
(x₁, y₁, z₁) = (−2, 4, 3)
(x₂, y₂, z₂) = (1, 2, 7)
The direction ratios of this line are:
⟨a, b, c⟩ = ⟨x₂ − x₁, y₂ − y₁, z₂ − z₁⟩
= ⟨1 + 2, 2 − 4, 7 − 3⟩
= ⟨3, −2, 4⟩
a) Parametric equations of the line:
These are given by:
x(t) = x₁ + at = −2 + 3t
y(t) = y₁ + bt = 4 − 2t
z(t) = z₁ + ct = 3 + 4t
Symmetric equation of the line:
This is given by:
(x − x₁)/a = (y − y₁)/b = (z − z₁)/c
(x + 2)/3 = (y − 4)/−2 = (z − 3)/4
b) When a line intersects the yz-plane, its x-coordinate is zero.
Using the parametric equations of the part (a):
x = 0
−2 + 3t = 0
3t = 2
t = 2/3
Substitute this in the parametric equations corresponding to y and z as well:
y = 4 −2t
= 4 − 2(2/3)
= 8/3
z = 3 + 4t
= 3 + 4(2/3)
= 17/3
Hence, the required point is: (x, y, z) = (0, 8/3, 17/3)
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A baker made 28 cakes in 84 days. What is the ratio of 28:84
The ratio when a baker made 28 cakes in 84 days is 1:3.
What is a ratio?Ratio demonstrates how many times one number can fit into another number. Ratios contrast two numbers by ordinarily dividing them. A/B will be the formula if one is comparing one data point (A) to another data point (B).
This indicates that you're dividing information A by B. For instance, the ratio will be 5/10 if A is 5 and B is 10.
Since the baker made 28 cakes in 84 days. The ratio will be:
= 28 / 84
= 1 / 3
= 1:3
In conclusion, the ratio of cakes to number of days is 1:3.
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You are playing in the NBA Playoffs and attempt a 3-point shot as the buzzer sounds for the end of the
game, if you make the shot your team wins! Your basketball is is traveling on a path described by the
following function: b(x) = -x2 +1.36x + 2. The net is on a level described by the following function:
n(x) = 3 between (8 < x < 8.5). Will you make the shot and win the playoffs?
You may work alone or in a group of up to 3 students total.
BONUS: How high in the air will the basketball be at its highest point?
UNITS: x is in meters, y is in meters
Since we do not know the value of u, we cannot find the time taken by the basketball to travel a distance of 8.5 meters. We cannot find the height of the basketball at its highest point.
Given that n(x) = 3 for 8 < x < 8.5.It is impossible to determine whether the shot will be made or not based solely on this information. Winning the playoffs depends on various factors, such as the score, time remaining, and the overall performance of the team.
Therefore, additional information is required to determine the outcome of the playoffs.However, to find the height of the basketball at its highest point, we need to know the equation of the trajectory of the basketball.
Assuming that the basketball follows a parabolic path, we can use the formula:
y = ax² + bx + c,
where y is the height of the basketball, and x is the horizontal distance traveled by the basketball.
To find the values of a, b, and c, we need to know three points on the trajectory of the basketball. Let's assume that the basketball is thrown from a height of 1.5 meters and lands on the floor after traveling a horizontal distance of 8.5 meters.
Therefore, the points on the trajectory of the basketball are:
(0, 1.5), (8.5/2, h), and (8.5, 0),
where h is the height of the basketball at its highest point.Substituting these values in the equation of the trajectory,
we get:
1.5 = a(0)² + b(0) + c...(1)0 = a(8.5)² + b(8.5) + c...(2)h = a(8.5/2)² + b(8.5/2) + c...(3)
Simplifying equations (1) and (2),
we get:
c = 1.5...(4)b = -a(8.5)²/8.5...(5)
Substituting equation (4) in equation (3), we get:
h = a(8.5/2)² + b(8.5/2) + 1.5h = a(8.5/2)² - a(8.5)²/8.5 + 1.5h = -29.375a + 1.5
Substituting the value of a from equation (5) in the above equation,
we get:
h = -29.375(-a(8.5)²/8.5) + 1.5h = 0.5a(8.5)² + 1.5
Therefore, to find the height of the basketball at its highest point, we need to find the value of a. Since we know that the basketball lands on the floor after traveling a horizontal distance of 8.5 meters,
we can use the formula:
x = ut + 0.5at²,
where u is the initial horizontal velocity of the basketball, and t is the time taken by the basketball to travel a distance of 8.5 meters.
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8 - 3(2-(3 + 1)2 = 8.2)
Can you please help me
Answer:
Step-by-step explanation:
The answer is B
Help with geometry !!!!
the value of x that makes ΔDEF similar to ΔXYZ is 3.
What is the value of x that makes ΔDEF similar to ΔXYZ?A ratio is simply the relation between two amounts showing how many times a value is contained within another value.
Fot the triangles similar, the dimension of the sides of each triangle must be proportional to each other.
Hence, for ΔDEF similar to ΔXYZ;
Side ED / side DF = Side YX / side XZ
From the image;
Side ED = 2 Side DF = 5x - 11Side YX = 8Side XZ = 16Plug in the values
Side ED / side DF = Side YX / side XZ
2 / (5x - 11) = 8 / 16
Cross multiply and solve for x
8( 5x - 11 ) = 2 × 16
8 × 5x - 8 × 11 = 32
40x - 88 = 32
40x = 32 + 88
40x = 120
x = 120/40
x = 3
Therefore, the value of x is 3.
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10/27 x (3/8 divided by 5/24) =
Evaluate the expression
I will crown if right any weird answers reported
The number 16 is decreased to 7. What is the percentage by which the number was
decreased, to the nearest tenth of a percent?
Answer: 56.3%
Step-by-step explanation:
A birthday cake weighs 7/8 pounds. If 2/3 of the cake is flour, how much is flour
Help pls
5/2x-7=3/4x+14
\(\frac{5}{2}x-7=\frac{3}{4}x+14\)
\(\frac{5x}{2}-7=\frac{3}{4}x+14\\\\\frac{5x}{2}-7=\frac{3x}{4}+14\)
10x−28=3x+56
10x=3x+56+28
10x=3x+84
10x−3x=84
7x=84
\(x=\frac{84}{7}\)
x=12
Hope this helps, have a blessed and wonderful day!
PLEASE HELP WILL GIVE BRAINLIEST
The number of automobiles in a certain town was 1,890 in 2015, and it was 2,420 in 2020. If we were to make a linear model that gives the number of automobiles in this town as a function of the number of years since 2015, what would be the y-intercept?
The y-intercept of the linear model is 211,400, which represents the estimated number of automobiles in the town in the year 2015 (when the independent variable is zero).
To find the y-intercept of the linear model, we need to determine the value of the dependent variable (the number of automobiles) when the independent variable (the number of years since 2015) is equal to zero.
Let's first find the slope of the line, which represents the rate of change of the number of automobiles per year:
slope = (change in number of automobiles) / (change in number of years)
slope = (2420 - 1890) / (2020 - 2015) = 106 automobiles per year
Now we can use the point-slope form of a linear equation to find the y-intercept:
y - y1 = m(x - x1)
where y1 is the value of the dependent variable when the independent variable is x1. In this case, x1 = 2015, y1 = 1890, and m = 106 (the slope we just calculated).
y - 1890 = 106(x - 2015)
To find the y-intercept, we can set x = 0:
y - 1890 = 106(0 - 2015)
y - 1890 = -213,290
y = 211,400
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\(\int\limits^5_1 {x^2+2x-tanx} \, dx\)
The definite integral for this problem has the result given as follows:
\(\int_1^5 x^2 + 2x - \tan{x} dx = 212 - \ln{|\sec{5}|} + \ln{|\sec{1}|}\)
How to solve the definite integral?The definite integral for this problem is defined as follows:
\(\int_1^5 x^2 + 2x - \tan{x} dx\)
We have an integral of the sum, hence we can integrate each term, and then add them.
For the first two terms, applying the power rule, the integrals are given as follows:
Integral of x² = x³/3.Integral of 2x = 2x²/2 = x².The integral of the tangent is given as follows:
ln|sec(x)|
Then the integral is given as follows:
I = x³/3 + x² - ln|sec(x)|, from x = 1 to x = 5.
Applying the Fundamental Theorem of Calculus, the result of the integral is obtained as follows:
I = 5³/3 + 5² - ln|sec(5)| - (1³/3 + 1² - ln|sec(1)|)
I = 625/3 - 1/3 + 5 - 1 - ln|sec(5)| + ln|sec(1)|
I = 208 + 5 - 1 - ln|sec(5)| + ln|sec(1)|
I = 212 - ln|sec(5)| + ln|sec(1)|.
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please help me please i really need help please
Answer:
The answer is n+4. Hope this helps:)
Please guys help me please
Answer:
\(C' = (2,8)\)
\(A' = (4,4)\)
\(T' =(10,10)\)
Step-by-step explanation:
Given
\(k =2\)
\(C =(1,4)\)
\(A = (2,2)\)
\(T =(5,5)\)
Solving (a): The new points
To do this, we simply multiply the old points by the scale factor.
i.e.
\(New = Old * k\)
So:
\(C' = (1,4) * 2 = (2,8)\)
\(A' = (2,2) * 2 = (4,4)\)
\(T' = (5,5) * 2 = (10,10)\)
Solving (b): The graph of the original image
See attachment
Two machines used to fill soft drink containers are being compared. The number of containers filled each minute is counted for 60 minutes for each machine. During the 60 minutes, machine 1 filled an average of 73.8 cans per minute with a standard deviation of 5.2 cans per minute, and machine 2 filled an avaerage of 76.1 cans per minute with a standard deviation of 4.1 cans per minute.
Required:
a. If the counts are made each minute for 60 consecutiveminutes, what assumption necessary to the validity of a hypothesistest may be violated?
b. Assuming that all necessary assumptions are met, perform a hypothesis test. Can you conclude that machine 2 is faster than machine 1?
Answer:
The calculated value |t| = | - 2.6932 | = 2.6932 > 1.9803 at 0.05 level of significance
Alternative hypothesis is accepted
The average of machine two is faster than machine one
Step-by-step explanation:
Step(i):-
Given sample size n₁ = n₂ = 60 minutes
The average of first sample 'x⁻₁ = 73.8
The standard deviation of the first sample 'S₁ ' = 5.2 cans per minute
The average of second sample 'x⁻₂ = 76.1
The standard deviation of the second sample 'S₂ ' = 4.1 cans per minute
step(ii):-
Null Hypothesis : H₀: 'x⁻₁ = 'x⁻₂
Alternative Hypothesis : H₁ : 'x⁻₁ > 'x⁻₂
Test statistic
\(t = \frac{x^{-} _{1} - x^{-} _{2} }{\sqrt{\frac{S^{2} _{1} }{n_{1} } +\frac{S^{2} _{2} }{n_{2} } } }\)
\(t = \frac{73.8 - 76.1 }{\sqrt{\frac{(5.2)^{2} }{60 } +\frac{(4.1)^{2} }{60 } } }\)
t = - 2.6932
|t| = | - 2.6932 | = 2.6932
Step(iii):-
Degrees of freedom
ν = n₁ + n₂ -2 = 60 +60 -2 = 118
t₀.₀₅ = 1.9803
The calculated value |t| = | - 2.6932 | = 2.6932 > 1.9803 at 0.05 level of significance
Final answer:-
Null hypothesis is rejected at 0.05 level of significance
Alternative hypothesis is accepted
The average of machine two is faster than the average of machine one
PLS HELP WILL GIVE BRAINLIEST IF ANSWER IS RIGHT (NO LINKS)
Identify the three-dimensional figure that can be made from this net.
Answer:
The answer is D. Cone
Step-by-step explanation:
Write an equation of the line that passes through (-3, 3) and is perpendicular to the line 2y = 8x - 6.
Answer:
2y = 8x - 6
2y/2 = 8x/2 - 6/2
y = 4x - 3
y = -1/4x + 3Find the Unknown value of the triangle: Trigonometry
The unknown values in the triangle is calculated to be
PL = 14.3 cm
CY = 7.74
NY = 9.9 mm
LJ = 8.3
How to find the unknown values in the triangleThe unknown values in the triangle is worked using SOH CAH TOA
Sin = opposite / hypotenuse - SOH
Cos = adjacent / hypotenuse - CAH
Tan = opposite / adjacent - TOA
1. using Sin = opposite / hypotenuse - SOH
sin x = PL / PX
sin 54.25 = PL / 17.62
PL = sin 54.25 * 17.62
PL = 14.3 cm
2. using Tan = opposite / adjacent - TOA
tan 52.67 = CY / 5.9
tan 52.67 * 5.9 = CY
CY = 7.74
3. using Sin = opposite / hypotenuse - SOH
sin 33.06 = YC / NY
NY = 5.4 / sin 33.06
NY = 9.9 mm
4. using Tan = opposite / adjacent - TOA
tan 55.05 = LJ / VJ
tan 55.05 * 5.8 = LJ
LJ = 8.3
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Why is FOQZ the odd one out in
these sets of letters?
BCDEGPTV AJK FOQZ IY
The odd one out in the set is "FOQZ." It deviates from the pattern by the other sets, where the letters are arranged in Alphabetical order.
The set of letters "BCDEGPTV AJK FOQZ IY" seems to follow a specific pattern. If we examine the letters in each group, we can identify a difference that sets "FOQZ" apart from the others.
In the first group "BCDEGPTV," the letters are arranged in alphabetical order. Similarly, in the second group "AJK," the letters are also in alphabetical order. However, when we look at the third group "FOQZ," the letters do not follow alphabetical order.
Based on this pattern, we can conclude that the odd one out in the set is "FOQZ." It deviates from the pattern followed by the other sets, where the letters are arranged in alphabetical order.
It's worth noting that the pattern could be based on different criteria, such as the position of the letters in the alphabet or some other sequence. Without additional information or context, it is difficult to determine the exact pattern or reason for the deviation.
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6.334*104=6.334*10<sup>4</sup>=
Answer:
what's that
Step-by-step explanation:
How many factors of 100 are also multiples of 5?
Let us write the factors of 100. A factor of 100 can only be a multiple of five if it is divisible by five.
Divisibility rule of 5: A number can only be divisible by five if the ones digit of the number is a five or 0.Factors of 100 ⇒ numbers divisible by 100 ⇒ 1, 2, 4, 5, 10, 20, 25, 50, 100
When checking each factor of 100;
1 is not a multiple of 5 ⇔ not divisible by 5.2 is not a multiple of 5 ⇔ not divisible by 5.4 is not a multiple of 5 ⇔ not divisible by 5.5 is a multiple of 5 ⇔ divisible by 5.10 is a multiple of 5 ⇔ divisible by 5.20 is a multiple of 5 ⇔ divisible by 5.50 is a multiple of 5 ⇔ divisible by 5.100 is a multiple of 5 ⇔ divisible by 5.⇒ Five factors are multiples of 5.
Therefore, five factors of 100 are multiples of 5.
Find the largest number which divides 248 and 1032 leaving the remainder 8 in each case.
Answer:
...... .................
Mr.Chamberlain is planning a field trip for his math classes to visit a museum.It costs $300 to rent the bus, then $7.50 per student for entry to the museum Mr. Chamberlain only has a budget of $1,000 from the school. Which equality below represents the number of students he can bring on the trip?
Answer:
Equation - $1000=$300+$7.50x
Answer - Mr. Chamberlain can included 93 Student Entries
Step-by-step explanation:
$1000 (budget)
$300 (cost to rent bus)
$7.50 (cost of each student entry)
$1000-$300= $700
Now we have found out that Mr. Chamberlain has $700 left to spend on student entries.
$700/$7.50 = 93.333
Round 93.333 down to 93 because you can't have 1/3 of a student (obviously)
93 = the max number of student entries that Mr. Chamberlain can have for the museum field trip
I hope this helps :)
I would like some help wit this problem also if you don’t mind
A rectangle is a parallelogram, so its opposite sides are equal. The diagonals of a rectangle are equal and bisect each other.
Answer:
equal
Step-by-step explanation:
A box of tickets has an average of 420; the SD is 84. If we draw at random (with replacement) 50 times and compute the average of the draws, the expected value of the average of the draws equals 420 and the standard error of the average of the draws equals ____. (Enter correct to two decimal places.)
Answer:
Average of the draws equals 420
Standard Error = 11.88
Step-by-step explanation:
Given
\(\mu = 420\)
\(\sigma = 84\)
\(n =50\)
Solving (a): The average of the draws
This implies that we calculate the sample mean
This is calculated as:
\(\bar x = \mu\) --- Sample Mean = Population Mean
So, we have:
\(\bar x = 420\)
Solving (b): The standard error
This is calculated as:
\(SE=\frac{\sigma}{\sqrt n}\)
So, we have:
\(SE=\frac{84}{\sqrt {50}}\)
Using the calculator, we have:
\(SE=11.88\)
For what values is the function g(x) = \(\frac{6}{x(x-7)}\) undefined?
At x = 0 and x = 7, the function g(x) is undefined.
What is an expression?Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.
Given that;
The expression of the function is,
⇒ g (x) = 6 / x (x - 7)
Now, We know that;
The function f(x) = a(x) /b (x) is not defined at b (x) ≠ 0
Here, The expression of the function is,
⇒ g (x) = 6 / x (x - 7)
So, Function g (x) is not defined when,
x (x - 7) = 0
⇒ x = 0
or, x - 7 = 0
⇒ x = 7
Thus, At x = 0 and x = 7, the function g(x) is undefined.
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