Find the derivative of f(x) = negative 8 divided by x at x = 11.
Answer: I think it’s
f ` (x) = - 8 / x²
f ` (11) = - 8 / 121
The value of the derivative at x = 11 is 8/121
The equation of the function is given as:
[tex]f(x) = -\frac 8x[/tex]
Rewrite the above equation as:
[tex]f(x) = -8x^{-1}[/tex]
Using the first principle, the derivative of f(x) is:
[tex]f'(x) = -1 \times -8x^{-1-1}[/tex]
[tex]f'(x) = -1 \times -8x^{-2}[/tex]
Evaluate the product
[tex]f'(x) = 8x^{-2}[/tex]
Rewrite the above equation as:
[tex]f'(x) = \frac{8}{x^2}[/tex]
Substitute 11 for x
[tex]f'(11) = \frac{8}{11^2}[/tex]
[tex]f'(11) = \frac{8}{121}[/tex]
Hence, the value of the derivative at x = 11 is 8/121
Read more about function derivatives at:
https://brainly.com/question/5313449
what s the equation of the line that passes through the points (1,8) and (-2,-7)?
Answer:
y=5x+3
Step-by-step explanation:
m=(y2-y1)/(x2-x1)
m=(-7-8)/(-2-1)
m=-15/-3
m=5
y-y1=m(x-x1)
y-8=5(x-1)
y=5x-5+8
y=5x+3
2a=14 how do you solve this equation?
Answer:
a=7
Step-by-step explanation:
step one: divide both sides by 2
now you will have [tex]a=\frac{14}{2}[/tex]
step two: divide 14 by 2
14/2 is 7 so a is equal to 7
Write this percentage as a fraction in its simplest form.
59%
I’m a 6th grader that needs help
Answer:
61 miles
Step-by-step explanation:
1 / 6 = 1/6
1/6 * 366 = 61
1/6 of 366 is 61
We can check our answer by multiplying 61 and 6 since we divided 366 and 6
61 * 6 = 366
Now that we have checked our answer, we can comfirm that 366 divided by 6 is 61 therefore, our answer is 61 miles in 1 hour
Which choice is equivalent to the product below when x > 0?
Answer:
B
Step-by-step explanation:
Using the rules of radicals
[tex]\sqrt{\frac{a}{b} }[/tex] = [tex]\frac{\sqrt{a} }{\sqrt{b} }[/tex]
Given
[tex]\sqrt{\frac{2}{x} }[/tex] × [tex]\sqrt{\frac{x^2}{8} }[/tex]
= [tex]\sqrt{\frac{2x^2}{8x} }[/tex] ← cancel 2 and 8 and x² and x
= [tex]\sqrt{\frac{x}{4} }[/tex]
= [tex]\frac{\sqrt{x} }{\sqrt{4} }[/tex]
= [tex]\frac{\sqrt{x} }{2}[/tex] → B
blake went on a bike tour he rode 780 miles in 12 days he rode the same number of miles each day write an expression that can be used to find how many miles blake rode each day
Answer:
65 miles per day
Give my a brain baby
Step-by-step explanation:
Solve the system of equations by elimination. Show all work neatly on your work page. Checking your answer is wise. :)
6x + 3y = -12
-6x - 2y = 4
Answer:
x=2
y=-8
Step-by-step explanation:
6x+3y=-12
-6x-2y=4
3y=-12-6x
y=(-12-6x)/3
y=-4-2x
substitute y
-6x-2(-4-2x)=4
-6x+8+4x=4
-2x=-4
x=2
6(2)+3y=-12
12+3y=-12
3y=-24
y=-8
check:
6(2)+3(-8)=-12
12-24=-12
-6(2)-2(-8)=4
-12=16=4
I need help with these questions(see image).
Please show workings.
Answer:
see explanation
Step-by-step explanation:
(a)
The angle around the centre O of the circle = 360°, then
∠ AOB = 360° - 260° = 100°
Δ AOB is isosceles ( the radii OA and OB are congruent )
The altitude from O bisects ∠ AOB , thus
y = 50°
Since the triangle is isosceles the 2 base angles are congruent, so
x = [tex]\frac{180-100}{2}[/tex] = [tex]\frac{80}{2}[/tex] = 40°
(b)
∠ POR = 360° - 254° = 106°
Δ POR is isosceles (the radii OP and OR are congruent ) , then
the 2 base angles are congruent , thus
a = [tex]\frac{180-106}{2}[/tex] = [tex]\frac{74}{2}[/tex] = 37°
Your friend has x pennies. You have 29 pennies. You and friend have a total of 40 pennies. Write an equation that you can use to find x
Answer:
40 = 29 + x
Step-by-step explanation:
hope this helped, sorry if wrong
Can someone pleaseee help quickly
Answer:
Whats the question!?!?!? D:
Step-by-step explanation:
Sean has a spinner and a bag of marbles. The spinner is evenly divided into 8 sections. The bag is filled with 6 different colored marbles.
Sean will spin the spinner and randomly select a marbles. How many possible outcomes does Sean have?
A. 14
B. 28
C. 36
D. 48
Which statement about the volume of the block of clay is true??
A) the volume is the sum of the length, x+8, the width, x-3, and the height, 2x-5.
B) the volume does not depend on the length, x+8
C) the volume is the product of the length, x+8, and the width, x-3.
D) the volume is the product of the area of the base, (x+8) (x-3), and the height, 2x-5
Please help :)
Answer:
d
Step-by-step explanation:
Answer:
c?
Step-by-step explanation:
What is m<1 if m<7 = 60°?
Answer:
m<1 = 60° if m<7=60°
Step-by-step explanation:
The are the same angle degree.
Evaluate the expression. If necessary, round to the nearest hundredth.
PLEASE HELP ASAP!!
Answer: I would say that the one which you have selected is correct.
Step-by-step explanation:
I really do hope that I am right and this helps you!
___
| |
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please help and show work
Step-by-step explanation:
11.
tan 30 = perpendicular / base = x/ 7
1/√3 = x/7
X= 7/√3
2.
cos 30 = 7/y
√3/2 = 7/y
y = 7×2/ √3
y= 14/√3
plz mark my answer as brainlist plzzzz.
hope this will be helpful to you ☺️.
Corri received money for her birthday. She let lakisha borrow $4.50 and spent half of the remaining money. The next day she received $10 from her uncle. After spending $12.50 at the movies, she still had $7.75 left. How much money did she receive for her birthday?
Answer:
I don't understand sorry patawadAnswer:
$14.75 but if includ the money her uncle gave her than it’s $24.75
Step-by-step explanation:
Which event caused the hundred years war
Answer:
Image result for what event started the 100 years war
The Hundred Years' War was fought between France and England during the late Middle Ages. It lasted 116 years from 1337 to 1453. The war started because Charles IV of France died in 1328 without an immediate male heir
Step-by-step explanation:
So it would be C
Answer:
Philip VI took English land
Step-by-step explanation:
"By convention, the Hundred Years' War is said to have started on May 24, 1337, with the confiscation of the English-held duchy of Guyenne by French King Philip VI." - Encyclopedia Britannica
Help and get brainliest !!
Answer:
I think its A
Step-by-step explanation:
I eliminated C and D but am not 100% sure between a and b i think its right im not sure sorry
Which number produces an irrational number when added to 0.4?
B. 0.444...
C.2/7
Answer:
B.
Step-by-step explanation:
Which statement about sqrt x-5 minus sqrt x=5 true?
Answer:
9 is an extraneous solution.
Step-by-step explanation:
What is the result when 3x4 – 16x3 + 15x2 + 6x – 2 is divided by - 4? If
r(3)
there is a remainder, express the result in the form q(a) +
6(2)
Answer:
5
Step-by-step explanation:
What would you multiply to make the y variable cross out?
-5x + y = -3
3x - 8y = 24
Answer:
Step-by-step explanation:
-40x + 8y = -24
3x - 8y = 24
-37x = 0
x = 0
0 + y = -3
y = -3
(0, -3)
Answer:
I will show you how to solve for x and y.
Step-by-step explanation:
-5x + y = -3
3x - 8y = 24
You can isolate y in the first equation, and substitute that into the second equation.
so to isolate y in -5x + y = -3, you would add 5x to both sides
this gives you y = 5x - 3
Then substitute this y into the equation below.
3x - 8(5x-3) = 24 (this way, the y variable disappears)
then distribute the 8 into the bracket
3x - 40x + 24 = 24
combine the variables
-37x + 24 = 24
isolate x by moving the constants to one side
-37x = 0
so x = 0
I am not sure if you want the rest, but here it is.
substitute x = 0 into one of the equations.
-5x + y = -3
-5(0) + y = -3
y = -3
6. Find the measure of the angle. *
m
Q
?
P
113
M
118
Answer:
113 - 180 = 67 degrees
Step-by-step explanation:
113 degrees from 180 degrees equals 67 degrees
Well, *clicks tounge* didn’t expect to be awake late, but time flies when your crying and panicing. :)
Answer: The first two
Step-by-step explanation:
Write an absolute value equation for the following graph *picture attached *
Answer:
5
Step-by-step explanation:
l
Answer:
-6<-2?
Step-by-step explanation:
What is the greatest common factor in the expression 10x2 + 10x?
AO 10
B. 10x + 1
c. 10x
DOX
Answer:
10x C
Step-by-step explanation:
10x (10x+1)= 10x^2+10x
1). what is the area of the rectangle whose length is (x+5) and width (x-5)?
Answer:
[tex]x^{2}[/tex]-25
Step-by-step explanation:
formula for areas of rectangles= width x height
width=x-5
height=x+5
(x-5)(x+5)= [tex]x^{2}[/tex]-5x+5x-25
since the 5x's cancel out each other
=[tex]x^{2}[/tex]-25 will be the answer
The area of rectangle is [tex](x^{2} -25)[/tex] unit square.
The area of rectangle is product of length and width.
[tex]Area = length*width[/tex]
Given that length is [tex](x+5)[/tex] and width is [tex](x-5)[/tex].
[tex]Area=(x+5)*(x-5)\\\\Area=x^{2} -5x+5x-25=x^{2} -25[/tex]
Hence, the area of rectangle is [tex](x^{2} -25)[/tex] unit square.
Learn more:
https://brainly.com/question/20968176
What is the answer what’s the sum?
Answer:
9 1/2
Step-by-step explanation:
Answer: 9 1/2
Step-by-step explanation:
32 - 2
2x
Write the polynomial
in standard form
that represents
the perimeter of
the quadrilateral.
2x + 1
5x - 2
Can someone help me please, it’s almost 11 and I want to go to bed, I have a lot of points
Answer:
12x-3 if you need a value for x i got nothing