The value of the definite integral is 68.
We have,
Break down the integral into two parts:
[tex]\int\limits^6_2 (5f(x) + 2)dx = \int\limits^6_2(5f(x)dx + \int\limits^6_2(2)dx[/tex]
Given that the average value of f(x) on this interval is 3, replace 5f(x) with 5 * 3 = 15:
[tex]\int\limits^6_2 (5f(x)dx = \int\limits^6_2(15)dx[/tex]
= 15(6 - 2)
= 15(4)
= 60
And,
[tex]\int\limits^6_2 2 dx = 2 [6 - 2] = 8[/tex]
Adding both parts of the integral:
= 60 + 8
= 68
Therefore,
The value of the definite integral is 68.
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Which of the following produces the loudest sound?
How can you decompose the composite figure to determine its area? as three triangles and a circle as two triangles, a rectangle, and a circle as a triangle, a pentagon, and a semicircle as a triangle, a rectangle, and a semicircle
We can decompose the composite figure into a triangle, a rectangle, and a semicircle in order to find the area of the composite figure.
What is the area?The space filled by a flat form or the surface of an item is known as the area.
The number of unit squares that cover the surface of a closed-form is the figure's area. Square centimeters and other similar units are used to measure area.
The area of the composite figure is equal to the sum of area 1, area 2, and area 3
Area 1 - triangle
Area 2 - rectangle
Area 3 - semicircle
We can decompose the composite figure into a triangle, a rectangle, and a semicircle in order to find the area of the composite figure.
Hence option d is correct.
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Answer:
option D
Step-by-step explanation:
74. The mean of 50 test scores was calculated as 88.
But, it turned out that one of the scores was
misread at 94 but it was 69. What is the mean?
85
87
87.5
88.5
The mean if the scores was misread at 94 but it was 69 is 87.5
How to find the mean of a number?Mean is also known as average. It is mathematically represented as:
Mean = Sum of data/Sample space
Given the following parameters
Mean = 88
Sample size = 50
Substitute
88 = Sum/50
Sum = 88(50)
Sum = 4400
If one of the scores was misread at 94 but it was 69, hence;
Sum + (94-69) = 4400
Sum + 25 = 4400
Sum = 4400 - 25
Sum = 4331
New mean = 4375/50
New mean = 87.5
Hence the mean if the scores was misread at 94 but it was 69 is 87.5
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Evaluate the expression if x=2, y=7, and z = -4
(z - x) + y
Answer:
1
Step-by-step explanation:
Evaluate (z - x) + y if x = 2, y = 7, and z = -4
(z - x) + y <== substitute the numbers for the variables
(-4 - 2) + 7
-6 + 7 <== add
1
Hope this helps!
What is the y-intercept of the line: 8x - 4y = 20
Answer:
The y-intercept is 5
Step-by-step explanation:
First Step is to set y by itself:
4y = -8x + 20
y = -2x + 5
Remember: y = mx + b and b is the y intercept
b = 5
Find the perimeter of each figure in feet, 48 in 3yd 5ft 1yd .
Answer:
Step-by-step explanation:
Remark
First of all, all the units must be the same. Inches is probably the best unit to use.
Second the base line at the bottom must be completed. How long is it
Givens
Left side = 48 inches
Top = 3 yards
1 yard is 36 inches.3 yard is 3* 36 = 108 inches.Right side = 5 feet.
1 foot = 12 inches5 feet = 12 * 5 = 60 inchesBottom = 1 yard + top
Bottom = 1 yard + 3 yards
Bottom = 4 yards
1 yard = 36 inches4 yards = 144 inchesPerimeter = 144 + 60 + 108 + 48
Perimeter = 360 Inches.
Answer
Perimeter = 360 inches
Perimeter = 360 / 12 = 30 feet There are 12 inches in a foot
Perimeter = 360 / 36 = 10 yards. There are 36 inches in a yard
The question does not specify the units. Probably inches would work, but if a computer is marking your answer and you get it wrong, you are going to have to try the other two answers in turn.
A number, n, is multiplied by −0. 7. The product is -1/2. What is the value of n?
Step-by-step explanation:
-0.7n = -1/2
-0.7n = -0.5
n = 0.5/0.7
n = 0.715
Note: Enter your answer and show all the steps that you use to solve this problem in the space provided.
10 ft
2 ft
2 ft
20 ft
What is the area of the kite?
Answer:
60ft^2
Step-by-step explanation:
area= 1/2(b)(h)
b for both traingles is 4
height of 1 triangle is 10 and the other is 20
total are will equal both triangles added together
area of first triangle = 1/2(10)(4)= 20ft^2
area of second triangle = 1/2(20)(4)= 40ft^2
area of the kite= 20+40= 60ft^2
Find an equation for the line that passes through the points (6, -1) and (-6, 2).
Answer:
[tex]D : y = \frac{-1}{4}x + \frac{1}{2}[/tex]
Step-by-step explanation:
let D be the line that passes through the points (6, -1) and (-6, 2)
Then D has an equation of the form D: y = ax + b
Now we need to find a and b in order to be able to write the equation of the line D:
[tex]a = \frac{-1-2}{6-(-6)}= \frac{-3}{12}= \frac{-1}{4}[/tex]
Since the point (6 , -1) lies on the line D then :
-1 = (-1/4) × (6) + b
then
-1 = (-6/4) + b
then
b = -1 - (-6/4) = -1 + 6/4 = -4/6 + 6/4 = (-4+6)/4 = 2/4 = 1/2
then
b = 1/2
Conclusion:
Since a = -1/4 and b = 1/2 then
[tex]D : y = \frac{-1}{4}x + \frac{1}{2}[/tex]
Is the pair of angles supplementary 81 ° and 9 °
Yes or No?
Answer:
No, They are complementary
Step-by-step explanation:
Supplementary is when the angles add up to 180 degrees.
Complementary is when the angles add up to 90 degrees.
Answer:
No it isn’t a supplementary angle because supplementary angles add up to 180 degrees. 81+9=90
Step-by-step explanation:
Compare using >, <, or=.
3 miles
5,000 yards
Answer:
3 miles > 5,000
Step-by-step explanation:
hope this helps :)
have a great day or night.
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Find the volume, in cubic centimeters, of the rectangular prism pictured below.
3 cm
| 21 cm
2 cm
(Your answer must be entered as a mixed number with a simplified fraction)
HURRY
Answer:
Step-by-step explanation:
Formula
Use V = L*w* h
Givens
L = 3 cm
w = 2 1/2 cm
h = 2 1/2 cm
Solution
V = 3 * 2 1/2 * 2 1/2
Answer: V = 18 3/4 cm^3
An atrium is being designed to house an exhibit of tropical birds. The atrium must enclose 250,000 cubic feet of space, and the designer wants it to have the shape of a hemisphere. Is such a design possible given that the plot of land on which it will be built is a rectangle 90 feet wide and 100 feet long?
The proposed design of the atrium (V < V') is possible since its volume is less than the maximum possible atrium.
Can this atrium be built in the rectangular plot of land?
The atrium with the maximum allowable radius (R), in feet, is represented in the image attached. The real atrium is possible if and only if the real radius (r) is less than the maximum allowable radius and therefore, the real volume (V), in cubic feet, must be less than than maximum possible volume (V'), in cubic feet.
First, we calculate the volume occupied by the maximum allowable radius:
V' = (8 · π / 3) · (45 ft)³
V' ≈ 763407.015 ft³
The proposed design of the atrium (V < V') is possible since its volume is less than the maximum possible atrium. [tex]\blacksquare[/tex]
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What number goes in the box?
394 -
= 153
A 242
B 547
C 240
D 241
Answer:
d
Step-by-step explanation:
394-153=241
Simplify ratio
1. 65:15
2. 56:45
3. 98:24
4. 380:56
5. 246:39
6. 98:112
7. 54:12
8. 87:15
9. 47:17
10. 90:117
1) 13:3
2) Same
3) 49:12
4) 95:14
5) 82:13
6) 7:8
7) 9:2
8) 29:5
9) Same
10) 10:13
Your basically dividing them by each other on a calculator
E.g. 90 ÷117 = 10/13
(10:13)
Or
20:30
20÷30=2/3
(2:3)
So, you could find the HCF of both numbers.
( highest factor of 20 & 30 is 10)
Hope this helps!
Determine the amplitude or period as requested.
Period of y = negative one-third sine 2 x
a.
Negative one-third
b.
StartFraction pi Over 3 EndFraction
c.
One-third
d.
Pi
The time period of the given function will be π.
What is a expression? What is a mathematical equation?A mathematical expression is made up of terms (constants and variables) separated by mathematical operators.A mathematical equation is used to equate two expressions.Equation modelling is the process of writing a mathematical verbal expression in the form of a mathematical expression for correct analysis, observations and results of the given problem.We have the following expression -
y = (-1/3)sin(2x)
We have -
y = (-1/3)sin(2x)
We can write -
ωx = 2x
Now -
ω = 2π/T
(2π/T)x = 2x
2π/T = 2
T = 2π/2
T = π
Therefore, the time period of the given function will be π.
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In the given circle with the centre O,
angle ABC = 100° angleACD = 40° and CT is a tangent to the circle at C. Find Angle ADC and Angle DCT.
Step-by-step explanation:
As the points A, B, C and D lie on a circle, So, ABCD is a cyclic quadrilateral...
As, Sum of opp. ∠s in a cyclic quadrilateral = 180°
∴ ∠ADC + ∠ABC = 180°
=> ∠ADC + 100° = 180° => ∠ADC = 80°
Now,
Sum, of all angles in a traingle = 180°
In ΔACD, ∠CAD + ∠ADC + ∠ACD = 180°
=> ∠CAD + 80° + 40° = 180°
=> ∠CAD = 180° - 80° - 40° = 60°
As CT is tangent to the circle at the point C and CD is a chord of the circle, So
∠DCT = ∠CAD........(∠s in alternate segments are equal,,So ∠CAD = 60°)
=> ∠DCT = 60°
Hope it helps you!!Answer:
See below ~
Step-by-step explanation:
∠ADC
∠ABC + ∠ADC = 180° (Angles in a cyclic quadrilateral)∠ADC = 180° - 100° = 80°∠DCT
∠DCT = ∠CAD (ANGLES IN ALTERNATE SEGMENTS EQUAL)∠CAD = 180° - 80° - 40° = 60°∠DCT = 60°Suppose a population contains 20,000 people. All else being equal, a study
based on a population sample that includes which of the following numbers
of respondents would you have the most confidence in?
A. 200
B. 2000
C. 20
D. 2
Answer:
2000
Step-by-step explanation:
larger sample sizes have more reliable results
Jessica is standing 2 miles from the center of the
base of Pikes Peak and looking at the summit of the
mountain, which is 1.4 miles from the base.
With what angle of elevation is Jessica looking at
the summit of the mountain?
A 40-pound case of bananas costs $23.60. How much would a 70-pound case cost?
Answer:
$41.30
Step-by-step explanation:
First, divide 23.60 by 40
23.60/40 = 0.59
0.59 is the unit price, (or the worth of one {1} pound case)
0.59 * 70 = 41.3
$41.30 is the cost of a 70-pound case of bananas
hope this helps :)
A bag contains 6 blue marbles, 5 yellow marbles, 3 white marbles, and 1 red marble.
What is the probability of not selecting a white marble?
A. 2/3
B. 3/4
C. 4/5
D. 1/5
Please explain how you got the answer so I can learn
Any links and you will be reported please help
[tex]6 + 5 + 3 + 1 = 15 \: marbles[/tex]
Total number of possibilities excluding white marbles:[tex]6 + 5 + 1 = 12 \: marbles[/tex]
The probability of an event occuring is given by:[tex]p(a) = \frac{number \: of \: possibilities}{total \: number \: of \: possibilities} [/tex]
[tex]p(a) = \frac{12}{15} = \frac{4}{5} [/tex]
Letter CAnswer:
The total number of marbles in the bag is:
6 blue marbles + 5 yellow marbles + 3 white marbles + 1 red marble = 15 marbles
The probability of not selecting a white marble can be calculated as follows:
Number of non-white marbles / Total number of marbles
There are a total of 15 - 3 = 12 non-white marbles in the bag (6 blue marbles + 5 yellow marbles + 1 red marble).
So the probability of not selecting a white marble is:
12 / 15 = 4/5
Therefore, the answer is C) 4/5.
Step-by-step explanation:
What is .006 as a percent
Answer:
.006 as a percentage is .6%
Step-by-step explanation:
Multiply your number by 100 to get the percentage.
.006 x 100 = .6
Therefore, your answer is .6%.
PLEASE PLEAS HELP ME !!!
please help me I will give BRAINLY , 5 STARS and a THANKS
Answer:
2, 4, 8
Step-by-step explanation:
Well, it says Max put $1 on the first day(which is already entered for you), then it says that he put in $2 on the second day. Then it says that he doubles how much he puts in each day after, which just means to multiply the last entered amount by 2. So, he put in 2 x 2 = $4 on the third day, and lastly, 4 x 2 = $8 on the fourth day.
Hope this helps :)
i do not know this answer
Answer:
Move all terms that don't contain x to the right side and solve. x = 10 − 2 y
Step-by-step explanation:
2. Draw what might be the missing figure in
the pattern below.
Answer:
Please also attach the figure or the pattern like this.
What is the definition of Comparative Advantage?
Answer:
When one country has a commercial advantage over another country.
Step-by-step explanation:
(This is actually an AP Human Geography question). Ex: Florida grows oranges better than Maine due to Florida’s tropical climate. Florida has the comparative advantage.
The variables a, b, and c represent polynomials where a = x2, b = 3x 2, and c = x – 3. what is ab – c2 in simplest form? 3x3 2x2 – x 3 3x3 2x2 – x – 3 3x3 x2 – 6x 9 3x3 x2 6x – 9
The simplest form of a^2-ab is given by 3x^3 + x^2 + 6x - 9.
We have given that,
a = x^2,
b = 3x + 2,
c = x – 3
We have to determine ab- c^2.
What is the meaning of the simplest form?
A fraction is in its simplest form when the numerator and the denominator have no common factors besides one.
ab- c^2
[tex]=x^2(3x+2) - (x-3)^2\\ =3x^3 + 2x^2 - (x^2 - 6x + 9) \\=3x^3 + 2x^2 - x^2 + 6x - 9 \\=3x^3 + x^2 + 6x - 9\\[/tex]
The simplest form of a^2-ab is given by 3x^3 + x^2 + 6x - 9.
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What is the value of x in the equation 2(x−3) 9=3(x 1) x? x = −3 x = −1 x = 0 x = 3
The solution of the linear equation is x = 0.
What is the linear equation?An equation is a mathematical statement, which has an equal sign (=) between the algebraic expression.
Linear equations are the equations of degree 1.
The given linear equation is;
[tex]\rm 2(x-3)+ 9=3(x+ 1) +x[/tex]
The value of x is determined in the following steps given below.[tex]\rm 2(x-3)+9=3(x+1)+x\\\\2x-6+9=3x+3+x\\\\\ 2x+3=4x+3\\\\3-3=4x-2x\\\\0=2x\\\\x=0[/tex]
Hence, the solution of the linear equation is x = 0.
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Answer:
x=0
Step-by-step explanation:
...
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Answer:
make me brainliest plsssssssss
Step-by-step explanation:
A
Susu is solving the quadratic equation 4x2-8x-13=0 by completing the square. her first four steps are shown in the table. a table listing the first few steps in deriving the quadratic formula in which step did susu first make an error? step 1 step 2 step 3 step 4
The error is in step 2 in step 2 Susu forgot to divide 8 by 4 for finding the solution of a quadratic equation.
What is a quadratic equation?The name Quadratic comes from "quad" meaning square, because the variable gets squared (like x2). It is also called an "Equation of Degree 2"
Susu is solving the quadratic equation [tex]4x^2-8x-13=0[/tex] by completing the square
To apply to completing the square method we need to get x^2 alone
Susu added 13 on both sides. So step 1 is correct
When we factor out 4, we divide both terms by 4
[tex]4(\dfrac{4x^2}{4}-\dfrac{8x}{2})=13[/tex]
[tex]4(x^2-2x)=13[/tex]
Susu forgot to divide 8 by 4
So , error in step 2
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Answer:
Step-by-step explanation:
2