Answer:
ASA
Step-by-step explanation:
Can anyone help me with this plzz?
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Explanation:
Check out figure 1 in the attached images below. In this figure, I've plotted the function y = 6/(2x-3) on a 2D grid system. The function curve is in blue. Then I've plotted (2,0) and (3,0) on the x axis. Point A is somewhere between those endpoints. Point A is also on the x axis. Directly above A is point B such that B is on the blue function curve.
The distance from A to B is found by subtracting the y values of each point.
The y coordinate of A is y = 0. The y coordinate of B is y = 6/(2x-3)
Therefore, the distance from A to B is 6/(2x-3) units. This will form the radius of each cylindrical slice as figure 2 shows. Note the color coding to help see how the 2D view corresponds to the 3D view. The xy plane has been laid flat on the floor. So we're viewing the function curve at a downward angle now. Each of those gray cylinders combine to form an approximate 3D volume. The more cylinders we have, and the finer the cuts, the more accurate the total volume.
So it comes down to finding the volume of each cylindrical slice and adding up the volumes. This is effectively what integral calculus is all about.
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Since the radius of each cylinder is y = 6/(2x-3), this means r = 6/(2x-3) is plugged into the formula
V = pi*r^2*h
which is the volume of a cylinder formula
The height of each cylinder is delta x, which we'll use dx for short. So this is where the dx comes from in integrals.
This is what the integral will look like
[tex]\displaystyle V = \int_{2}^{3} \pi*\left(\frac{6}{2x-3}\right)^2dx[/tex]
which turns into
[tex]\displaystyle V = 36\pi\int_{2}^{3}\frac{1}{(2x-3)^2}dx[/tex]
after a bit of algebra. We're able to factor the 36pi out because it's a constant
From here we use u-substitution. Let u = 2x-3
This leads to du/dx = 2 which can be solved to dx = du/2
Since u = 2x-3, the lower endpoint x = 2 leads to
u = 2x-3 = 2*2-3 = 1
and x = 3 leads to
u = 2x-3 = 2*3-3 = 3
So the interval 2 < x < 3 turns into 1 < u < 3
After using u-sub, making the proper replacements, and integrating, we get
[tex]\displaystyle V = 36\pi\int_{2}^{3}\frac{1}{(2x-3)^2}dx\\\\\\\displaystyle V = 36\pi\int_{1}^{3}\frac{1}{u^2}\frac{du}{2}\\\\\\\displaystyle V = 36\pi*\frac{1}{2}\int_{1}^{3}\frac{1}{u^2}du\\\\\\\displaystyle V = 18\pi\int_{1}^{3}u^{-2}du\\\\\\\displaystyle V = 18\pi\left[-u^{-1}+C\right]_{1}^{3}\\\\\\\displaystyle V = 18\pi\left[-\frac{1}{u}+C\right]_{1}^{3}\\\\\\[/tex]
Let's evaluate that to get the following
[tex]\displaystyle V = 18\pi\left[-\frac{1}{u}+C\right]_{1}^{3}\\\\\\\displaystyle V = 18\pi\left[\left(-\frac{1}{3}+C\right)-\left(-\frac{1}{1}+C\right)\right]\\\\\\\displaystyle V = 18\pi\left(-\frac{1}{3}+1\right)\\\\\\\displaystyle V = 18\pi\left(\frac{2}{3}\right)\\\\\\\displaystyle V = 12\pi\\\\\\[/tex]
So the 3D volume formed by rotating that region (under the curve from x = 2 to x = 3) is exactly 12pi cubic units
y=3/8x−4 write in standard form
Answer:
3x-8y=32
Step-by-step explanation:
2. g(x)= x2 +14x +13
Solve: 2a + 5 = 23
:((
Answer: 9
Step-by-step explanation:
Solve the absolute value equation.
3=|6-x|
Answer: well it's correct-
Step-by-step explanation: it shows that e equals to 6-x, x would be 3 so then the problem would still be correct (3=|3|) and |3| just equals, well, 3.
Stephanie ate 12 of the 40 chips in a bag. What percentage of the chips did Stephanie eat?
Answer:
the answer is 0.3%
Step-by-step explanation:
12 divided by 40 is 0.3
Answer:
30%
Step-by-step explanation:
Write a proportion.
12 / 40 = x / 100
Cross multiply.
40x = 1200
Solve for x.
x = 30
She ate 30% of the chips.
FAST ANSWER NEEDED 7,900 dollars is placed in an account and gains an annual interest rate of 5.5%. Which of the exponential equations below best models this situation?
Answer:
rage we are not doing ur homework
Step-by-step explanation:
14236.53
Step-by-step explanation:
I lookedd it up I'm not smart. ;)
Can someone help me out plz?! You can get 50 points?!
Try using the pythagorean theorem i think?
Answer:
The Base is Greater than the height
Step-by-step explanation:
So the answer has to be greater than eight.
find the quontient. 673÷3
Answer: 224
Step-by-step explanation:
The number tine shows four points. Which point represents the approximate tocation of Vo??
A)
point
.
point
point
point D
Answer: It is point B
Step-by-step explanation:
Answer: point b
Step-by-step explanation:
A Bugatti car dealer paid a certain price for a car and marked it up by 13 of the price she paid. Later, she sold it for $40,000. What is the original price that the car dealer bought the car? Please explain you answer!
Answer:
565
Step-by-step explanation:
77
A triangle has an area of
2x2 + 4x – 16 square meters. If the base
is x – 2 meters, find the height
Answer:
The expression for the area of the given triangle is 5x^4+4x^3units
Step-by-step explanation:
At a grocery store, it costs $9 for 6 cans of soup. What is the unit price?
Answer:
1.5
Step-by-step explanation:
6 * 1.5 = 9
Answer:
1.3
Step-by-step explanation:
[tex]\sqrt[6]{9}[/tex] = 9 divided by 6, 6 goes into 9, 1 time. Remainder of 3, 1.3 is the answer.
What two consecutive odd integers have a sum of 88?
Answer:
What two consecutive odd integers have a sum of 88? x + x + 2 = 88 • 2x + 2 = 88 • 2x = 86 • x = 43, x + 2 = 45 • 43 + 45 = 88 • Ans: 43, 45 • They equal 88 and are both odd.
Elvira used 4 cups of grape juice, 15 cups of cranberry juice, and 2 1 / 2 cup of pineapple juice to make punch. One liter is approximately equal to 4.23 cups. Which measurement is closest to the number of liters of punch Elvira made
A: 1:42 L
B: 10.23 L
C: 25.38
D: 1.77 L
Answer:
C
Step-by-step explanation:
A 40-degree angle is translated 5 inches along a vector
Answer :need the options you choose frome
Step-by-step explanation:
A man cycles to a village at 18km/hr and returns at 12km/hr. If he takes 6 tahrs
for the double journey, how far does he ride altogether?
Answer:
30km/hr
Step-by-step explanation:
18km/hr +12km/hr
The man rides 86.4 km distance.
What is speed?Speed tells us how slow or fast an object moves. It describes the distance travelled divided by the time taken to cover the distance.
Speed is directly Proportional to Distance and inversely proportional to Time.
Speed = Distance/Time
Given,
Speed of man way to the village = 18km/hour
Speed of man when returns from the village = 12km/hour
Time for double journey = 6 hour
Let going time is x and returning time is y
x + y = 6 -------(a)
⇒ x = 6 - y
Distance for going = distance for returning
18x = 12y
Putting value of x in terms of y
18(6 - y) = 12y
108 - 18y = 12y
30y = 108
y = 108/30
y = 3.6 hours
Putting value of y in equation (a)
x + 3.6 = 6
x = 6 - 3.6
x = 2.4
Returning time = 3.6 hours
Returning distance = returning time × returning speed = 3.6 × 12
Returning distance = 43.2 km
Going distance = Returning distance = 43.2
Total ride distance = 43.2 + 43.2 = 86.4 km
Hence, 86.4 km is the distance of ride by the man.
Learn more about speed here:
https://brainly.com/question/28224010
#SPJ2
Which division problem does the diagram below best illustrate?
A). 30 divided 5 = 6
B). 35 divided 7 = 5
C). 21 divided 7 = 3
D). 40 divided 5 = 8
Plz hurry !!!
Answer:
B) 35 divided by 7 = 5
Step-by-step explanation:
You have 35 blocks, you are devideding them in groups of 7, how many groups do you have?
please help and thank you!
Answer:
Its d i took the class
Step-by-step explanation:
HELP HELP ASAPPPPP NEED THESE TWO ANSWERED PLSSSSS
An outdoor adventure company charges $9 per hour for a mountain
bike plus a $5 fee for a helmet.
Answer:500
Step-by-step explanation:500 +7++U+U++UU+
Possible answers:1/3,1/2,2,3
Answer:
1/2
Step-by-step explanation:
Which Point represents the opposite of six,??
2. Mary's test average after 8 tests is 80. Her score on the
9th test was 71. If all 9 tests are weighted equally, what
is Mary's test average for all 9 tests?
A. 71
B. 75.5
C. 77
D. 79
E. 80
Answer:
D
Step-by-step explanation:
since her test average for the first 8 tests is 80, the sum of all the scores for the first 8 tests is 640. Since her 9th test is 71, we do 640+71=711. To find the average of all 9 tests, we do 711/9 = 79
D
Eddie found a store that sells cell phone cases for $18.50 plus $0.15 per letter engraved on the case. A second store sells cases for $18.00 plus $0.25 per letter engraved on the case. How many letters would Eddie have to engrave on his case for it to cost the same at either store?
Answer:
5 letters
Step-by-step explanation:
Let x = the number of letters engraved.
For the first store, the cost can be written as (18.50 + 0.15x).
For the second store, the cost can be written as (18 + 0.25x).
For the cost and value of x to be the same, let them equal eachother and evaluate x:
18.5 + 0.15x = 18 + 0.25
0.1x = 0.5
∴x=5
The inequality represents the spine thickness, in centimeters, of various books on a
shelf.
18
0.15
5
Which value of x could represent the thickness of a book on this shelf?
Answer:
7/2
Step-by-step explanation:
What is the first step in evaluating (12.9 – 3.1) × 6.2 – 2 + 43
Answer:
101.76
Step-by-step explanation:
Answer:
(12.9 - 3.1) i'm in middle school so if i can do it you can
Step-by-step explanation:
Which of the following is equivalent to logb sqrt 57/74
Answer:
[tex]\log _b\left(\sqrt{\frac{57}{74}}\right)[/tex] is equivalent to [tex]\frac{1}{2}\left(\log \:_b\left(57\right)-\log \:_b\left(74\right)\right)[/tex].
Hence, option 'c' is true.
Step-by-step explanation:
Given the expression
[tex]\log _b\left(\sqrt{\frac{57}{74}}\right)[/tex]
Rewrite as
[tex]=\log _b\left(\left(\frac{57}{74}\right)^{\frac{1}{2}}\right)[/tex]
[tex]\mathrm{Apply\:log\:rule\:}\log _a\left(x^b\right)=b\cdot \log _a\left(x\right),\:\quad \mathrm{\:assuming\:}x\:\ge \:0[/tex]
[tex]=\frac{1}{2}\log _b\left(\frac{57}{74}\right)[/tex]
[tex]\mathrm{Apply\:log\:rule}:\quad \log _c\left(\frac{a}{b}\right)=\log _c\left(a\right)-\log _c\left(b\right)[/tex]
[tex]=\frac{1}{2}\left(\log _b\left(57\right)-\log _b\left(74\right)\right)[/tex] ∵ [tex]\log _b\left(\frac{57}{74}\right)=\log _b\left(57\right)-\log _b\left(74\right)[/tex]
Therefore,
[tex]\log _b\left(\sqrt{\frac{57}{74}}\right)[/tex] is equivalent to [tex]\frac{1}{2}\left(\log \:_b\left(57\right)-\log \:_b\left(74\right)\right)[/tex].
Hence, option 'c' is true.
The area of the triangle is 22.4cm^2.
Calculate the length, b, of the longest side of the triangle.
Please help, I will mark first correct answer brainliest.
Answer:
The longest side length b is approximately 13.172 cm
Step-by-step explanation:
The given parameters are;
The area of the triangle = 22.4 cm²
The given angles of the triangle = ∠97°
The given side of the triangle = 3.7 cm
The formula for the area of a triangle, A = 1/2 × a × b × sin(C)
Where;
a, and b are the side legs forming the angle C
Therefore, we have;
A = 22.4 = 1/2 × 3.7 × a × sin(97°)
a = 22.4/(1/2 × 3.7 × sin(97°)) ≈ 12.199
a ≈ 12.199 cm
Therefore, by cosine rule, we have;
b² = a² + c² - 2 × a × c × Cos(B)
Substituting the values, gives;
b² = 12.199² + 3.7² - 2 × 12.199 × 3.7 × Cos(97°)
b² ≈ 173.507
∴ b ≈ √173.507 ≈ 13.172
b ≈ 13.172 cm
Find the equation of the line shown.
Answer:
I think that it is y= -2x +9
Step-by-step explanation:
I am sure about the slope but the y-intercept (9) might be wrong.