Step-by-step explanation:
Circumference=22π
2πr=22π
r=11 in.
Area=121π in.²
Hope it helps you
please help me please will give brainliest to anyone
Answer:C
Step-by-step explanation:
Answer:
Its A
Step-by-step explanation:
Which is ⁴√81x³y⁴z8 with rational exponents?
(a) 3x(¾)yz²
(b) 8x (¾) yz²
(c) 2x (⅓) yz²
(d) 9x (⅓) yz²
The expression of ⁴√(81x³y⁴z⁸) with rational exponents is: 3x(¾)yz²
How to solve Laws of Exponents?The 8 laws of exponents can be listed as follows:
Zero Exponent Law: a^(0) = 1.
Identity Exponent Law: a^(1) = a.
Product Law: a^m × a^n = a^(m+n)
Quotient Law: a^m/a^n = a^(m - n)
Negative Exponents Law: a^(-m) = 1/a^(m)
Power of a Power: (a^m)^n = a^(mn)
Power of a Product: (ab)^m = a^m*b^m
Power of a Quotient: (a/b)^m = a^m/b^m
We are given the algebra expression as:
⁴√81x³y⁴z⁸
This gives us:
81^(1/4) * x^(3/4) * y^(4/4) * z^(8/4)
= 3x^(3/4)yz²
Read more about Laws of Exponents at: https://brainly.com/question/11761858
#SPJ1
Which method would you use to solve this system of equations?
y = -2x + 9
-8x + 7y = -3
graphing
elimination
substitution
Falcon
Answer:
substitution
Step-by-step explanation:
y = - 2x + 9 → (1)
- 8x + 7y = - 3 → (2)
substitute y = - 2x + 9 into (2)
- 8x + 7(- 2x + 9) = - 3
- 8x - 14x + 63 = - 3
- 22x + 63 = - 3 ( subtract 63 from both sides )
- 22x = - 66 ( divide both sides by - 22 )
x = 3
substitute x = 3 into (1)
y = - 2(3) + 9 = - 6 + 9 = 3
solution is (3, 3 )
Can someone help me with this please .
Answer:
4
Step-by-step explanation:
78
1) a2 - 12a + 35
Help
Answer:
(a−5)(a−7)
Step-by-step explanation:
factor a2−12a+35
a2−12a+35
The middle number is -12 and the last number is 35.
Factoring means we want something like
(a+_)(a+_)
Which numbers go in the blanks?
We need two numbers that...
Add together to get -12
Multiply together to get 35
Can you think of the two numbers?
Try -5 and -7:
-5+-7 = -12
-5*-7 = 35
Fill in the blanks in
(a+_)(a+_)
with -5 and -7 to get...
(a-5)(a-7)
Determine the quadrant(s) in which (x, y) could be located. (Select all that apply.) x > 0 and y < 0 Quadrant I Quadrant II Quadrant III Quadrant IV none of these
Answer:
Quadrant IV
Step-by-step explanation:
If x is greater than 0, then it will remain on the right side, on quadrants I and IV. If y is less than 0, then it will be on the bottom, so we are left with quadrant IV:
x is greater than 0, so all possible values are positive
y is less than 0, so all possible values are negative
(x,-y)
Following are the description of the wrong choice:
In the first Quadrant, (x,y) both -axis values are positive that's why it is wrong.In the second Quadrant, the x-axis has a negative value and the y-axis has a positive value that's why it's wrong.In the third Quadrant, (x,y) both -axis has the negative value that's why it is wrong.That's why the "Quadrant IV" is the correct answer.
Learn more:
quadrant: brainly.com/question/7196054What is the value of X in the equation?
Answer:
x = 6
Step-by-step explanation:
9+3 = (4x+2x)/3
12 = 6x/3
(12)(3) = 6x
36 = 6x
36/6 = x
6 = x
Finding an angle measure given extended angles
Answer:
thanks for the points
Step-by-step explanation:
thanks for the points
What is the volume of this cone?
Answer: 821 yds^3
Step-by-step explanation:
Use suitable identities to find the product of 1) (x-4) (x+10) 2) (3x+4) (3x +5) 3) (-3a +5b +4c)^2
Answer:
Step-by-step explanation:
(x-4) (x+10) ⇒ (x+a)(x+b)=x²+(a+b)x+ab
a=-4 , b=10
x²+(-4+10)x+-4(10)
x²+6x-40
(3x+4) (3x +5)
3(x+4/3) *3(x+5/3) ⇒ identity : (x+a)(x+b)=x²+(a+b)x+ab
a=4/3 b=5/3
3*3=9
9[x²+(4/3 +5/3)x+4/3(5/3)]
9[x²+9/3 x+20/9]
9x²+27x+20
(-3a +5b +4c)^2 ⇒
suitable identity is (a+b+c)²= a² + b² + c² + 2ab + 2bc + 2ca
a=-3a , b=5b , c=4c
9a²+25b²+16c²- 30ab +40bc - 24ca
15 minutes left please help me with math
Step-by-step explanation:
B=tan⁻¹(9÷22)
B=22.2
C=180-(97+22.2)
C= 180- 119.2
C= 60.8
write about your favorite mathematician. who were they, and what was their lasting impact on the field of mathematics? be sure to describe in detail their contribution (i.e. their theorem, their rule, their formula, etc).
Carl Friedrich Gauss, the "Prince of Mathematicians," made groundbreaking contributions to number theory, geometry, physics, and statistics, leaving a lasting impact on the field of mathematics.
We have,
Carl Friedrich Gauss, known as the "Prince of Mathematicians," made significant contributions to number theory, geometry, physics, and statistics.
He formulated the fundamental theorem of arithmetic, developed concepts in differential geometry such as intrinsic curvature and Gaussian curvature, and formulated Gauss's law for electric fields.
Gauss's work laid the foundation for modern mathematics and his emphasis on rigor and precision influenced subsequent generations of mathematicians.
His legacy as one of the greatest mathematicians of all time is based on his profound theorems, laws, and concepts that continue to shape the field.
Thus,
Carl Friedrich Gauss, the "Prince of Mathematicians," made groundbreaking contributions to number theory, geometry, physics, and statistics, leaving a lasting impact on the field of mathematics.
Learn more about mathematicians here:
https://brainly.com/question/30613629
#SPJ12
a particular concentration of a chemical found in polluted water has been found to be lethal to 20% of the fish that are exposed to the concentration for 24 hours. twenty fish are placed in a tank containing this concentration of chemical in water. a find the probability that exactly 14 survive. b find the probability that at least 10 survive.
A particular concentration of a chemical found in polluted water has been found to be lethal to 20% of the fish that are exposed to the concentration for 24 hours. Twenty fish are placed in a tank containing this concentration of chemical in water. Therefore
a. The probability that exactly 14 fish survive is 0.263b. The probability that at least 10 fish survive is 0.983How do we calculate the probability?a) Probability that exactly 14 fish survive, Let x be the number of fish that survive. Using Binomial distribution, we have:\(P(X = x) = C(n,x) * p^x * (1-p)^{(n-x)}\) where n is the total number of fish, p is the probability of survival and C(n,x) is the binomial coefficient. We have n = 20, p = 0.8 (since 20% die) and x = 14. \(C(20,14) * (0.8)^14 * (0.2)^6 = 38760 * 0.000016777216 * 0.0264241152 = 0.263\) Therefore, the probability that exactly 14 fish survive is 0.263
b) Probability that at least 10 fish survive To find this probability, we can find the probability that 0, 1, 2, 3, 4, 5, 6, 7, 8, or 9 fish die, and subtract this probability from 1. Using the same formula as in (a), we have: \(P(X <= 9) = \sum C(n,x) * p^x * (1-p)^{(n-x)}\) where n = 20, p = 0.8 and x varies from 0 to 9. Using a calculator or software, we find:P(X <= 9) = 0.0169Therefore,P(X >= 10) = 1 - P(X <= 9) = 1 - 0.0169 = 0.983 Therefore, the probability that at least 10 fish survive is 0.983.
See more about binomial distribution at: https://brainly.com/question/29163389
#SPJ11
can someone please help me ASAP!
Answer:
D.
Step-by-step explanation:
x ={-1, 0, 2, 4, 7}
We see every x value only one time, so given pairs (x,y) is a function.
Answer is D.
a birthday cake was measured with a degree of accuracy to the nearest 1cm; 10cm × 10cm × 5cm. what is the smallest possible volume of the cake to the nearest
The smallest possible volume of the cake, rounded to the nearest cubic centimeter, is approximately 408 cm³.
The smallest possible volume of the cake to the nearest cubic centimeter can be calculated by finding the lower bound of each dimension and multiplying them together.
For the given cake dimensions:
Length (L) = 10 cm
Width (W) = 10 cm
Height (H) = 5 cm
Since the measurements are accurate to the nearest 1 cm, we consider the lower bound for each dimension by subtracting 0.5 cm from each side.
Lower bound length = L - 0.5 cm = 10 cm - 0.5 cm = 9.5 cm
Lower bound width = W - 0.5 cm = 10 cm - 0.5 cm = 9.5 cm
Lower bound height = H - 0.5 cm = 5 cm - 0.5 cm = 4.5 cm
To find the smallest possible volume, we multiply these lower bounds together:
Smallest possible volume = Lower bound length * Lower bound width * Lower bound height
= 9.5 cm * 9.5 cm * 4.5 cm
= 407.625 cm³
Rounded to the nearest cubic centimeter, the smallest possible volume of the cake is approximately 408 cm³.
Know more about the smallest possible volume click here:
https://brainly.com/question/9315386
#SPJ11
(2-5√8)(4-6√3)
I need help
Answer:
see explanation
Step-by-step explanation:
Using the rule of radicals
\(\sqrt{a}\) × \(\sqrt{b}\) ⇔ \(\sqrt{ab}\)
Given
(2 - 5\(\sqrt{8}\) )(4 - 6\(\sqrt{3}\) )
Each term in the second factor is multiplied by each term in the first factor, that is
2(4 - 6\(\sqrt{3}\) ) - 5\(\sqrt{8}\)(4 - 6\(\sqrt{3}\) ) ← distribute both parenthesis
= 8 - 12\(\sqrt{3}\) - 20\(\sqrt{8}\) + 30\(\sqrt{24}\) → *
Simplify \(\sqrt{8}\) and \(\sqrt{24}\)
\(\sqrt{8}\) = \(\sqrt{4(2)}\) = \(\sqrt{4}\) × \(\sqrt{2}\) = 2\(\sqrt{2}\)
\(\sqrt{24}\) = \(\sqrt{4(6)}\) = \(\sqrt{4}\) × \(\sqrt{6}\) = 2\(\sqrt{6}\)
Back to *
= 8 - 12\(\sqrt{3}\) - 20(2\(\sqrt{2}\) ) + 30(2\(\sqrt{6}\) )
= 8 - 12\(\sqrt{3}\) - 40\(\sqrt{2}\) + 60\(\sqrt{6}\)
Simplify (y+1)+4
Help
Answer:
y+5
Step-by-step explanation:
Answer: y+5
Step-by-step explanation:hope this help
Please help me with this!! Find the area of the shaded region. I need it done tonight because it is due tomorrow. I have more questions that I need help with on my profile. Please help!!!!
The area of the shaded part is 33.04 \(cm^2\)
In the given figure the radius of the circle is not given so seeing the figure we are assuming the radius of the circle to be 6 cm.
We need to find the area of the circle and then subtract the area of the non-shaded part to get the area of the shaded part.
To find the area of the circle we know the formula:
Area of the circle = \(\pi r^2\)
here we know that the radius is 6 cm and pi holds the value of 3.14.
Substituting the values in the formula we get
area = 3.14 * 6 * 6
area= 113.04 \(cm^2\).
Now we need to find the area covered by the non-shaded structure we can see the structure consists of a rectangle of length 4 cm and width 12cm and two squares with sides 4cm. We can add the area of all of them to get the area of the non-shaded part.
Area of the rectangle = 4*12= 48
Area of one the squares = 4*4 = 16
Area of both the squares = 2*16= 32
The total area covered by non-shaded part = 48+32=80 \(cm^2\)
Now the area of the shaded part = 113.04 - 80 = 33.04 \(cm^2\).
Therefore, the area of the shaded part is 33.04 \(cm^2\)
Learn more about Circle at:
https://brainly.com/question/12269818
#SPJ1
There are 19 sweaters in a closet and some sweaters are in the dresser as well.If the total number of sweaters is 60,which of the following equations is correct?A.19 + s=60,B.19× s=60,C.19÷s=60,D.60÷s=19
Answer:
A
Step-by-step explanation:
find the length of the curve r(t) = sqrt(2)ti
To find the length of the curve r(t) = sqrt(2)ti, we need to use the arc length formula:L = ∫[a,b] ||r'(t)|| dt,where ||r'(t)|| is the magnitude of the derivative of the curve.
First, we need to find r'(t):
r'(t) = (d/dt) [sqrt(2)ti] = sqrt(2)i
The magnitude of r'(t) is ||r'(t)|| = sqrt(2).
So, the length of the curve is:
L = ∫[0,1] sqrt(2) dt = sqrt(2) * [t] [0,1] = sqrt(2)
Therefore, the length of the curve r(t) = sqrt(2)ti is sqrt(2).
To learn more about derivative : brainly.com/question/29020856
#SPJ11
what does 50 1/2 x 1/4 =
Answer:
101/8 or 12.625 or 12 5/8
Step-by-step explanation:
These are all the same you can just write it however you'd like.
Hope this helps.
Trent drank 3/5 of a gallon of water. Nicholas drank 2/3 of a gallon. who drank more water?
Answer:
Trent drank more Water than Nicholas because 3/5 is bigger than 2/3
Write an algebraic expression for the verbal expression.
x more than 7
Help meeeee
Answer:
x + 7
Step-by-step explanation:
Step 1: Translate
x = x
more than = addition (+)
7 = 7
Step 2: Combine
x + 7
Answer:
y = 7 + x
Step-by-step explanation:
If we have the number 7 and what x more we can represent that with 7 + x. The total can be repesented as y. So your answer is 7 + x or y = 7 + x.
Hope that helps!
T Raiderlink Bb Blackboard SPC Blackboard TTU -/1 Points] DETAILS HARMATHAP12 9.4.011. Find the derivative of the function. w = 2? - 326 + 14 w= 1-/1 Points) DETAILS HARMATHAP12 9.4.014.MI. Find the derivative of the function. +(x) = 16x12 + 6x6 - 2x + 19x - 7 h'(x) = [-/1 Points] DETAILS HARMATHAP12 9.5.002.MI. Find the derivative and simplify. y = (8x + 5)(x2 – 3x).
The derivative of the function is
A) dw/dz=z^5 (7z-18)
B) dh/dx=192x^11+36x^5-6x^2+19
C) dy/dx=24x^2-38x-15
In mathematics, the derivative of a function measures the sensitivity to change of the function value with respect to a change in its argument. It is the rate of change of a function with respect to a variable.
A) w = z^7 – 3z^6 + 14
dw/dz=7z^6-18z^5
dw/dz=z^5 (7z-18)
B) h(x) = 16x^12 + 6x^6 – 2x^3 + 19x – 7
dh/dx=192x^11+36x^5-6x^2+19
C) y = (8x + 5)(x^2 – 3x)
dy/dx= d/dx [8x+5]*〖(x〗^2-3x)+(8x+5)*d/dx[x^2-3x]
dy/dx=(8* d/dx [x}+d/dx[5])*〖(x〗^2-3x)+(8x+5)*(d/dx[x^2]-3 d/dx[x])
dy/dx=(8*1+0)(x^2-3x)+(8x+5)(2x-3*1)
dy/dx=8(x^2-3x)+(2x-3)(8x+5)
dy/dx=24x^2-38x-15
Note: The question is incomplete. The complete question probably is: Find the derivative of the following function: A) w = z^7 – 3z^6 + 14 B) h(x) = 16x^12 + 6x^6 – 2x^3 + 19x – 7 C) y = (8x + 5)(x^2 – 3x).
Learn more about Derivative:
https://brainly.com/question/23819325
#SPJ4
Please answer the last question, letter C.
Answer:
24/64
Step-by-step explanation:
Please help me
A line passes through the origin, (3,5), and (-12, b) what is the value of b?
A) -20
B) -7
C) -10
D) 20
Answer:
A) -20
Step-by-step explanation:
AS it passes through the origin (0,0) and the point (3,5) we can find the slope
(y2-y1) / (x2-x1) =
(5 -0 ) / (3-0) =
5/3
Becasue is passes through the origin the equation is :
5/3x = y
For the other point (-12,b) -12 is "x" and "b" represent "y" in the equation
-12 * 5/3 = -60/3 = -20
b = -20
The Answer A) -20 is the one
1/2+1/3 + ___ = 1 (I want right ans)
Answer:
1/6
Step-by-step explanation:
1/2 + 1/3 + x =1
5/6 + x = 1
x = 1 - 5/6
x = 1/6
what sample size is necessary for a 95% confidence interval about the mean height of a shrub if we want a margin of error of 0.5 inches and the population standard deviation is known as 1.3 inches.
Answer:
Step-by-step explanation:
We have been given that,
Level of significance,
α
=
0.05
Standard deviation,
σ
=
160
Margin of error, {eq}ME =...
See full answer below.
The price of a pair of shoes increases from $67 to $79. What is the percent increase to the nearest percent?
The percent increase is
19.
Answer: 17.9%
Step-by-step explanation:
Need help plzzz with math 20 point plzz help 20 points no links or imma report
Answer:
The answer is C
Explain:
Solve for x in the first equation.
Add 4y to both sides of the equation
3x=12+4y
12y-9x=36
Divide each term by 3 and simplify
X=4+4y/3
12y-9x=36
Replace all occurrences of x with 4+4y/3 in each equation.
-36=36
X=4+4y/3
Since -36=36 is not true, there is no solution