The answer an example how to do it
Answer:
≈ 1347 mi²
Step-by-step explanation:
The shaded area is the difference between the outer area and the inner area
shaded area = outer - inner
= πr₁² - πr₂²
where r₁ = 14 + 11 = 25 and r₂ = 14, thus
A = π × 25² - π × 14² = 625π - 196π = 429π = 429 × 3.14 ≈ 1347 mi²
Answer:
Step-by-step explanation:
Area of the shaded region = Area of the Outer circle - Area of the inner circle
Outer circle:
r = 14+11 = 25 mi
Area = πr² = π*25²
Inner Circle:
r = 14 mi
Area = πr² = π*14²
Area of shaded region = π*25² - π*14²= π(25² - 14²)
= 3.14*(625 - 196)
=3.14*429
= 1347.06 mi²
Find the 4th term in the sequence with the following definition: See picture for sequence.
Please need help badly!!
Answer:
a₄ = - 37
Step-by-step explanation:
To find the 4 th term using the recursive formula and a₁ = - 2
a₂ = 2a₁ - 3 = 2(- 2) - 3 = - 4 - 3 = - 7
a₃ = 2a₂ - 3 = 2(- 7) - 3 = - 14 - 3 = - 17
a₄ = 2a₃ - 3 = 2(- 17) - 3 = - 34 - 3 = - 37
given that f(x)=19x+6, what’s f(3)
Answer:
f(3)=63
Step-by-step explanation:
We want to find out what y is, when x is equal to 3.
f(x)=19x+6
To solve for f(3) substitute 3 in for x.
f(3)=19(3)+6
Multiply
f(3)=57+6
Add
f(3)=63
A rectangle has a height of w^2 +3w+9 and a width of w^2+2 what’s the area
Answer:
Two solutions were found :
w = 1
w = -4
Step-by-step explanation:
w =(-3+√25)/2=(-3+5)/2= 1.000
or:
w =(-3-√25)/2=(-3-5)/2= -4.000
Answer: w^4+3w^3+11w^2+6w+18
Step-by-step explanation:
NEED HELP ASAP!
Use the net as an aid to compute the surface area of the triangular prism.
A) 108 cm2
B) 120 cm2
Eliminate
C) 132 cm2
D) 170 cm2
Answer:
Hi There the correct answer to this is C) 132 cm2
Step-by-step explanation:
All you really need to do is 1 base = 8 × 6 = 48
2 sides = 2(5 × 6) = 60
2 triangles = 2(8 × 32) = 24
SA = 48 + 60 + 24 = 132 cm2
So Hope That Helps!
Answer:
132 cm^2
Step-by-step explanation:
HELP NEEDED ASAP SOMEBODY HELP PLS
Answer: B) 10cm Just count the squares but 2 halves = 1 full
Convert the expression 9 1/2to radical form.
Answer:
Radical Form is 1/√9
Step-by-step explanation:
Also, the decimal version is 0.3 repeating
Answer:
[tex]\sqrt[2]{9}[/tex]
Step-by-step explanation:
To find radical form with fractions , put the whole number (i.e 9) inside the square root, the denomination in the top of the square root (i.e 2) and the numerator is the power of the number inside the square root (in this case it is one so you would not put it there.)
Gasoline is sold by the gallon. If 5 gal costs $17.35, how much would 12 gal cost?
Answer: $41.64
Step-by-step explanation: $17.37/5=3.47, so 3.47 x 12 = $41.64
What are the answers to these and how do I do it
Answer:
1. D
2.B
3.A
4.C
Step-by-step explanation:
You find where the line meets right on the “corner of the boxes” then count to the side then down or up to find the slope
I REALLY NEED HELP PLEASE!!!!!!
Question in image below.
A.) ∆KHM ≅ ∆KJM
B.) ∆KHM ≅ ∆MJK
C.) ∆KHM ≅ ∆KHM
D.) ∆KHM ≅ ∆KMJ
Answer:
A.) ∆KHM ≅ ∆KJM
Step-by-step explanation:
In triangle KHJ, KM is the bisector of base HJ..(given)
[tex] \therefore \: HM \cong \: JM...(1) \\ In\: \triangle KHM \:\& \: \triangle KJM\\
KH\cong KJ... (given) \\
KM \cong KM.. (common\: side) \\
HM \cong JM... [From\: equation \: (1)]\\
\therefore \triangle KHM \cong\triangle KJM\\.. (By\:SSS\: Postulate) \\ [/tex]
Answer:
KHM = KJM or A.)
Step-by-step explanation:
YURTTTTT
Pls i need help my brain won't think straight
Rocky because of the product rule which says that when multiplying two terms with the same base you add the exponents.
The number of users on a website has grown exponentially since its launch. After 2 months, there were 90 users. After 4 months, there were 810 users. Find the exponential function that models the number of users x months after the website was launched. Write your answer in the form f(x)=a(b)x.
Answer:
10(3)^x
Step-by-step explanation:
The function contains the points (2,90) and (4,810). Use the general form y=abx to write two equations:
90=ab^2 and 810=ab^4
Solve each equation for a:
a=90/b^2 and a=810/b^4
Since a=a, set the other sides of the equations equal and solve for b.
90/b2=810/b4
Cross multiply, then divide and simplify as follows:
90b^4=810b^2
b^4/b^2=810/90
b^2=90
b^3
Now, use the value of b and the point (2,90) to find the value of a.
90=a(3^2)
a=10
So, substitute answers in original equation for a final answer of f(x)=10(3)^x.
How do you find Radius with just the circumference? An Equation Would be
Preferred. Thanks
answer:
c =
[tex]2\pi r[/tex]
or
[tex]\pi \: d[/tex]
Answer:
To find the radius with just the circumference is with this formula:
R = C ÷ (2 × π)
Or just divide the circumference by 2 times pi.
Here's an example:
The circumference is 26
R = C ÷ (2 × π)
R = 26 ÷ (2 × 3.14)
R = 26 ÷ 6.28
R = 4.140127388535032 or 4.1
Hope this helped
What is the y- intercept of y= -3x
Answer: (0,0) or y=0
In order to find the y-intercept, we need to find the point that crosses the y-axis. To find that x=0 or (0,y)
When x=0, y=0 on the graph since there are no transformations.
witch table has the constant of proportionality between y and x of 8/5
table 1 table 2 table 3
4 32/5 2 14/5 5 20/3
10 16 6 42/5 9 12
11 88/5 20 28 12 16
Answer:
Table 1
Step-by-step explanation:
Constant of proportionality is simply the ratio of y to x. In each of the given tables, the second column is y and the first is x.
Table 1:
4 32/5
10 16
11 88/5
Let's find the constant of proportionality for each row:
R1: (32/5) / 4 = 8/5
R2: 16/10 = 8/5
R3: (88/5) / 11 = 8/5
Thus, since this matches the requirements and all three rows have the same constant, Table 1 is the answer.
If you check the other two tables in the same way, you'll see that neither has a constant of proportionality of 8/5.
Hope this helps!
Answer:
Table 1
Step-by-step explanation:
y = (8/5)x
32/5 = 8/5 × 4
32/5 = 32/5
16 = 32/5 × 10
16 = 16
88/5 = 8/5 × 11
88/5 = 88/5
Given the function h(a) = -x^2+ 7x + 14, determine the average rate of change
of the function over the interval 1 < x < 8.
Answer:
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Answer:
- 2
Step-by-step explanation:
The average rate of change of h(x) in the closed interval [a, b ] is
[tex]\frac{f(b)-f(a)}{b-a}[/tex]
Here [a, b ] = [1, 8 ], thus
f(b) = f(8) = - 8² + 7(8) + 14 = - 64 + 56 + 14 = 6
f(a) = f(1) = - 1² + 7(1) + 14 = - 1 + 7 + 14 = 20
average rate of change = [tex]\frac{6-20}{8-1}[/tex] = [tex]\frac{-14}{7}[/tex] = - 2
which unit could be used to measure area? yards ,miles ,square inches and pounds.
Answer:
square inches
Step-by-step explanation:
like u can do
square yards
square miles
but it has to have a "square"
so it is square inches
Answer:
square inches
Step-by-step explanation:
Did quiz
PLEASE ANSWER ASAP !!!!!
The difference of 3 times a number and 15 is no less than the square of the number.
Select the inequality that represents this relationship.
+
OA. 3.+ 15 > 12
O B. 3. s
OC. 31 < x2
OD. 3.-
I AL
GELABAIE VREME
O
FALSE
the First
Reset
Next
Answer: D
Hope this helps!
sorry about the first answer
3(x-2)<2(x+9)How do you slove this??
Answer:
x<24
Step-by-step explanation:
3(x-2)<2(x+9)
Distribute
3x - 6 < 2x+18
Subtract 2x from each side
3x-2x -6 < 2x-2x+18
x - 6 < 18
Add 6 to each side
x-6+6 <18+6
x<24
What is the value of cos(150°)?
Final answer:
The value of cos(150°) is -0.866.
Explanation:
The value of cos(150°) can be determined using the unit circle or trigonometric ratios. Since 150° is in the second quadrant, the cosine value is negative. In the second quadrant, the reference angle is 180° - 150° = 30°. The reference angle corresponds to the angle on the unit circle with the same cosine value.
In the first quadrant, the cosine value is positive. The cosine of 30° is 0.866 (approximately). Since the angle is in the second quadrant, the cosine value will be the same but negative. Therefore, the value of cos(150°) is -0.866.
Simplify each expression.
[tex] \frac{2x - 16}{8x ^{3} + 56x {}^{2} } \times \frac{x + 7}{x ^{2} - 7x - 8 } [/tex]
Answer:1
Step-by-step explanation: yea
Answer:
[tex]\frac{1}{4x^2\left(x+1\right)}[/tex]
Step-by-step explanation:
[tex]\frac{2x-16}{8x^3+56x^2}\cdot \frac{x+7}{x^2-7x-8}[/tex]
You first factor things out.
[tex]\frac{x-8}{4x^2\left(x+7\right)}\cdot \frac{x+7}{x^2-7x-8}[/tex]
You then multiply. (Cancel common factor, X+7)
[tex]\frac{x-8}{4x^2\left(x^2-7x-8\right)}[/tex]
You factor again.
[tex]\frac{x-8}{4x^2\left(x+1\right)\left(x-8\right)}[/tex]
Then cancel out common fact x-8.
So therefore, you get the final answer,
[tex]\frac{1}{4x^2\left(x+1\right)}[/tex]
What are the period and amplitude of the function?
Answer:
Period is 4, Amplitude is 3.5
Step-by-step explanation:
The Period is how far in the x direction for a function to repeat. This function repeats at (1,5), (5,5), etc. 5-1 = 4 difference between points which is the period.
The Amplitude is defined as the vertical distance from the center. The maximum vertical distance is 5 and the minimum is -2. 5-(-2) = 7. 7/2 = 3.5. 3.5 is the average which is the amp.
The solution is :Period is 4, Amplitude is 3.5, of the function.
What is wavelength?The distance between two successive troughs or crests is known as the wavelength. The peak of the wave is the highest point, while the trough is the lowest.
The wavelength is also defined as the distance between two locations in a wave that have the same oscillation phase.
here, we have,
The Period is how far in the x direction for a function to repeat.
This function repeats at (1,5), (5,5), etc.
5-1 = 4 difference between points which is the period.
we have,
The Amplitude is defined as the vertical distance from the center.
The maximum vertical distance is 5 and the minimum is -2.
5-(-2) = 7.
7/2 = 3.5.
3.5 is the average which is the amp.
To learn more about the wavelength refer to the link;
brainly.com/question/7143261
#SPJ3
(1, 5)(2, 8)(3, 11)(4, 14)(5, 17)(6, 20)(7, 23) A) y = 3x - 2 B) y = 3x + 2 C) y = -3x + 2 D) y = 1 3 x - 2 3
Answer:
y = 3x+2
Step-by-step explanation:
First we need to find the slope
m = (y2-y1)/(x2-x1)
= (23-20)/(7-6)
=3/1
We know the slope is 3
Using the slope intercept form of a line
y= mx+b where is the slope and b is the y intercept
y = 3x+b
Using a point (1,5)
5 = 3(1)+b
Subtract 3 from each side
5-3= 3-3+b
2 = b
y = 3x+2
Answer:
B) y = 3x + 2
Step-by-step explanation:
Slope: (8 - 5)/(2 - 1)
= 3/1 = 3
y = 3x + c
5 = 3(1) + c
c = 5 - 3
c = 2
y = 3x + 2
Solve cot x + 2cot x * sin x = 0 for U^ <= x<=180
Answer:
Step-by-step explanation:
hello :
cot x + 2cot x sin x = 0 0≤ x≤ 180
cotx(1+2sinx) =0 means : cotx=0 or 1+2sinx=0
1) cotx=0 so : cosx=0 and sinx ≠ 0 because cotx = cosx/sinx
when : 0≤ x≤ 180 : x=90°
2) 1+2sinx=0 means : sinx = -1/2
when : 0≤ x≤ 180 : no solutions because : sinx ≥ 0
conclusion : one solution : x=90°
|x+3|=-2
This answer does not have two solutions...why?
Step-by-step explanation:
|x+3| = -2 doesn't have a solution because the exact values can't be negative
Write 0.2 as a fraction in simplest form
Answer:
1/5
Step-by-step explanation:
2/10 simplified = 1/5
Answer:
Step-by-step explanation:
What is the volume of the sphere in terms of π? V = π in.3
Answer:
the person above me is correct!
the answer is 288:)
Step-by-step explanation:
The volume of the sphere in terms of π is,
⇒ 288π inch³
What is Multiplication?Multiply means to add a number to itself a particular number of times. Multiplication can be viewed as a process of repeated addition.
We have to given that;
Radius of sphere = 6 inch
Now, We know that;
Volume of sphere = 4/3πr³
Hence, We can formulate;
⇒ V = 4/3 × π × 6³
⇒ V = 288π inch³
Thus, The volume of the sphere in terms of π is,
⇒ 288π inch³
Learn more about the multiplication visit:
https://brainly.com/question/10873737
#SPJ3
Complete question is shown in attached image.
A new shopping mall is gaining in popularity. Every day since it opened, the number of shoppers is 20% more than the number of shoppers the day before. The total number of shoppers over the first 4 days is 671. How many shoppers were at the mall on the first day?
Answer:
The number of buyers on the first day was approximately 324.
Step-by-step explanation:
In this case we have a initial number of shoppers "C" that we want to know and this grows at a steady rate of 20% per day, like a compound interest, we also know the total number of shoppers after 4 days, so we have the final amount of shoppers. We can use the formula for compound interest in order to calculate the number of shoppers in the first day as shown bellow:
M = C*(1 +i)^(t)
Where M is the total amount of shoppers, i is the growth rate and t is the time elapsed.
671 = C*(1 + 0.2)^(4)
671 = C*(1.2)^4
671 = C*2.0736
C = 671/2.0736 = 323.5918
Since there can't be a 0.59 buyer, we will round the number to 324.
Answer:
125 shoppers
Step-by-step explanation:
answer for kahn
What is the measure of AC?
Answer:
41°
Step-by-step explanation:
∡ABC = (DE+AC)/2 = 39°
AC = 39*2-DE = 78° - 37° = 41°
this is the data
..................................................................
Answer:
i think its 1/4 up 5 times
Step-by-step explanation: