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
y - 0.8x = 0.5
5y - 2.5 = 4x
*Substitution
Answer:
y =1.6 x
Step-by-step explanation:
hope this is right!!!
Answer:
y=0.5+0.8x
Step-by-step explanation:
solve for the first variable in one of the equations and then substitute the result into the other equation
(Multiple choice/ Brainliest will be rewarded)
I’d like some help on this question.
(Zoom in if needed, the answer may be blurry )
Answer:
1. h=1.5d. 2. 30cm in 20 days
Step-by-step explanation:
2. 20×1.5
Please help 25p- it’s urgent
Answer:
p = 20, q = 20, r = 30
Step-by-step explanation:
The triangle to the left of OA is isosceles ( 2 equal radii ), then the base angles are congruent, so
p = 20
The 3 angles in this triangle sum to 180°, then the angle at O is
180 - (20 + 20) = 180 - 40 = 140°
AB is a straight line so angle in triangle containing q is 180 - 140 = 40
The triangle containing q is also isosceles ( 2 equal radii ) then base angles are congruent, then
q = [tex]\frac{180-140}{2}[/tex] = [tex]\frac{40}{2}[/tex] = 20
The triangle to the right of OA is also isosceles ( 2 equal radii ) then the base angles are congruent, so
r = 30
Then p = 20, q = 20, r = 30
The blue pen is 12 cm long the red pen is 72 mm long what is the difference between the 2 pens?
Answer:
the difference between the 2 pens is 4.8 cm
What is the volume of the portion of the aquarium with water in it?
1. 101 cm³
2. 14000 cm³
3. 32,200 cm³
4.46,200 cm³
Answer:
Hey there, the answer is
C. 32,200 cm
Step-by-step explanation:
I took the test and got it correct, hope this helps!
Answer:
32,200 cm³
Step-by-step explanation:
Took the test
In quadrilaterals, which of them have their diagonals bisecting each other?
Answer:
In quadrilaterals all parrallelograms which incude
Rectangle, Square, Rhoumbus and Parrallelogram have their diagnoos bisecting each other
Other than Parrallelograms Non Parrallelogram shapes like Trapezium also has its Diagnols bisectneach other
Hope it helps
There were 420 matches in the football tournament, with each team playing one team at a time on its own and others' fields. How many teams participated in the competition?
Answer:
840
Step-by-step explanation:
If two teams play one match and there is 420 matches, you just multiply 420 by 2.
HELP PLEASE I NEED TO PASS TEST!!!
Sam has a rectangular rug with an area of 48 square feet. The rug is 8 feet longer than it is wide. What is the width of the rug?
A. w = 4 feet
B. w = 12 feet
C. w = 8 feet
D. w = 6 feet
Answer:
B
Step-by-step explanation:
just use logic it really helps you have to think things through
Answer:
4 feet
Step-by-step explanation:
?+8=12
4+8=12
12*4=48
Making the answer 4 feet
Create the equation to the parallel or perpendicular lines. Describe the transformation(s).:
Write a line in slope-intercept form that contains the point (4, -6) and is parallel to the line described by y = -2x + 7. Describe the transformation
Answer:
.
Step-by-step explanation:
.
Help plsssd Help pldddd
ok the first one
and this is the second one
If x and y vary inversely; and y = 2, when x = 3. Find the value of y, when x = -2.
Step-by-step explanation:
this is the answer I hope it helps
A robot can complete 5 tasks in an hour. Each task takes the same amount of time.
a. How long does it take the robot to complete one task?
b. How many tasks can the robot complete in one hour?
What is the value of x and y?
HELP ME OUT BRO PLEASE THIS IS DUED BY 9 pm ughhh
Answer:
x = 4 y = 2✓3
Step-by-step explanation:
I'm big brain
Please I need some help correct answers only!!!!!
Hai!
I believe this would be 11.
Brainliest please?
WILL GIVE BRAINLIEST!
Consider the following.
twelve times the difference between a number and fifty-five
Translate into a variable expression. (Use x for your variable. Do not simplify.)
Tell whether the following numbers are prime or composite.
a) 17 _________ b) 54 _________ c) 77_________ d) 23 __________
ANSWER:
l--------------------------------------------------------------------------------------------l
l--------------------------------------------------------------------------------------------l
Answer:
17= Prime number
54= Composite
77=Composite
23=Prime
Hello there!
Prime numbers have 2 factors and composite numbers have 3 or more factors.
17 is prime because it has only 2 factors: 1 and itself.
54 is composite because it has more than 3 factors.
77 is composite because it has more than 3 factors.
23 is prime because it has only 2 factors.
Hope this helps you!
~Just a joyful teen
[tex]SilentNature[/tex]
Choose all angles that are less than 90 degrees.
Answer:
1,3,4 and 5 are the angles which are less than 90°.
Step-by-step explanation:
A 90° angle looks like this |_.
So if there's any any angle that has measure less than 90° likely looks like this /_ ( Just connect the fixed and the terminal ray. I couldn't do it here. )
Hope this helps you.
Answer:
1, 3, 4, 5
Step-by-step explanation:
They are all less than 90°!
share 747 in the ratio 2:7
Answer:
Step-by-step explanation:
166:581
my math problem is 3.8x=-19 I have to show all of my work... Help
Answer:
-5
Step-by-step explanation:
3.8x= -19
3.8x/3.8= -19/3.8
x=-5
Which step is the answer to the question and you cant answer step 5
Answer:
Step-by-step explanation:
Step 2, she factored the trinomial incorrectly. She did, "what two numbers multiply to equal 6 but add to equal 5?" She should have asked multiply to equal -6 and add to equal 5. The correct factorization would be:
(x+6)(x-1) = 0
x = -6 and 1
pls help i am on a timer
Answer:
[tex]x = 1 + \sqrt{2} \ \ or \ 1- \sqrt{2}[/tex]
Step-by-step explanation:
Given;
x² - 2x - 1 = 0
Solve by completing the square method;
⇒ take the constant to the right hand side of the equation.
x² - 2x = 1
⇒ take half of coefficient of x = ¹/₂ x -2 = -1
⇒ square half of coefficient of x and add it to the both sides of the equation
[tex]x^2 + (-1)^2 = 1 + (-1)^2[/tex]
[tex](x-1)^2 = 1 + 1\\\\(x-1)^2 = 2\\\\[/tex]
⇒ take the square root of both sides;
[tex]x-1 = +/- \ \ \sqrt{2} \\\\x = 1 + \sqrt{2} \ \ or \ 1- \sqrt{2}[/tex]
Therefore, option B is the right solution.
While parasailing. Ryan spots a dolphin on the water below. If Ryan is 228 feet above the
water and the angle of depression to the dolphin is 15, what is the horizontal distance
between Ryan and the dolphin?
Answer:
850.9 feet
Step-by-step explanation:
The horizontal distance between Ryan and the dolphin is 850.907 feet.
What is Trigonometry?One area of mathematics known as trigonometry examines the relationship between the sides and angles of a right triangle. The relationship between sides and angles is defined for 6 trigonometric functions.
We have,
Ryan is 228 feet above the water and the angle of depression to the dolphin is 15.
Using trigonometry
tan 15 = 228/ x
x= 228/ tan 15
x= 228 / 0.26794919243
x = 850.907 feet
Learn more about Trigonometry here:
https://brainly.com/question/29002217
#SPJ2
The ratio of blue skittles to red skittles in Tayler's bag is 3 to 4. If there are 20 red
skittles in Tayler's bag, how many total skittles does Tayler have? *
HELPPP ASAPPP PLEASE
Answer:
Tayler has 35 SHKITTLES IN ALL
Step-by-step explanation:
Since Tayler has 20 red Skittles, and the ratio of blue skittles to red skittles is 3 to 4, that means that Tayler has 3/4 as many blue skittles as she does red skittles. 3/4 of 20 is 15
20 + 15 = 35
Thus, Tayler has 35 skittles
SHKITTLES lol
You estimate that there are 75 marbles in a jar. The actual amount is 82 marbles. Find the percent error. Round to the nearest tenth of a percent if necessary. percent error %
Answer:
-0.09
Step-by-step explanation:
Help me out pls!! I'll give Brainliest!!
Answer: Its A
Step-by-step explanation:
у + 2х = 7
у = 3х – 3
What is the answer to this
So yall finna ignore my question even when I offer brainliest?!
Ha i gotchu I you guys an even hard one to help me on :)
-gives brainliest,thx,ratings-
(Answer all and Correctly)
(the top two are diff than the bottom two)
Answer:
(39) -6x+7 (40) 33n+15 (41) -4a-4 (42) 2k
Step-by-step explanation:
MATH HELP ASAP!!! MAKING BRAINLIST
Answer:
22.86
Step-by-step explanation:
2.54 x 9 will give you the answer.
Answer:
22.86
Step-by-step explanation:
2.54×9 = 22.86
hope this helps :)
number multiplied by a fraction is not always smaller than the original number. Explain this and give at least two examples to support your thinking.
Answer:
Sometimes, fractions can be written in 'improper' form, meaning that the top number (numerator) is bigger than the bottom number (denominator). So anything multiplied by a fraction like this will give a bigger number.
For example:
5 × 2/1 = 10
10 x 10/1 = 100
Step-by-step explanation:
Answer:
Step-by-step explanation:
There are two cases where this is true. When the fraction has the same numerator and denominator, or when the numerator is much larger than the denominator.
[tex]2*\frac{4}{4}=2[/tex]
[tex]2*\frac{100}{2}=100[/tex]
Which is the larger fraction ?
2/13, 1/13 or 5/13*
plsssss answer i will mark as brilliant