Answers
Answer:
Negative: (-∞,-3] and [1/2,-∞)
Positive: [-3,1/2]
Step-by-step explanation:
The derivative is the instantaneous rate of change at any given point for a function. Given this we know that anywhere the function is in the positive or negative direction, the derivative will also be in the positive or negative direction. We also know that wherever there is a peak or a trough, there will be no slope and it signifies a change in direction. For this function, this means the direction changes at -3 and 1/2.
Related Questions
a textbook store sold a combined total of 348 history and chemistry text in week.The number of history textbooks sold was three times the number of chemistry books were sold. how many book of each type were sold.
Answers
Answer:
x=87, y=261
Step-by-step explanation:
x+y=348 and 3x=y
plug 3x in for y.
x+(3x)=348
4x=348
x=87
plug x in to solve for y.
3(87)=y
y=261
Please help me I need this for tonight
Answers
because if you substitute 4 into x you do 4+8 thats 12
3(4) = 12
so therefore its C
Answer:
It is C because 4+8=3(4)
That's =12 =12
The perimeter of a rectangle is 280 meters. The width is 26 meters less than the length. Find the length and width.
Answers
Answer:
The length is 83 and the width is 57
Step-by-step explanation:
The width is 26 meters less than the length, so we'll represent the width with: L-26. Since there are 2 widths to account for, we'll multiply this by 2.
Equation looks like this so far: 2(L-26)
Then, add the 2 lengths and set the expression equal to 280.
Equation: 2(L-26)+2L=280
Distribute the 2 in the first term, making the equation look like:
2L-52+2L=280
Add the 52 to both sides of the equation
4L=332
Divide by 4 on both sides
L=332/4=83
L=83
Width is 26 meters less, so 83-26=57
W=57
Find the unit rate $72 in 4 hours
Answers
Answer:
72 dollars ÷ 4
4 hours ÷ 4
=
18 dollars
1 hour
=
18 dollars
hour
= 18 dollars per hour
Step-by-step explanation:
Answer:
its 76 becuse 72+4=76
Step-by-step explanation:
72+4=76
multiply 6.23 and 2.8 the product is_________ (with solution please)
Answers
Step-by-step explanation:
please mark me as brainlest
Simplify the expression
Answers
Answer:
[tex]-\frac{4}{7} -\frac{8}{7} i\sqrt{5}[/tex]
Step-by-step explanation:
To rationalize the denominator, we would have to multiply by the complex conjugate of 6 + 2i√5 which is 6 - 2i√5:
[tex]\frac{8-8i\sqrt{5} }{6+2i\sqrt{5} } *\frac{6-2i\sqrt{5} }{6-2i\sqrt{5} }[/tex]
The denominator resembles the difference of squares:
6^2 - (2i√5)^2
36 + 20
56
Next we would need to multiply the numerator, but before, notice we can factor out 8 from 8 - 8i√5:
[tex]\frac{8(1-i\sqrt{5})(6-2i\sqrt{5}) }{56}[/tex]
We can cancel that 8 with that 56 in the denominator:
[tex]\frac{6-2i\sqrt{5}-6i\sqrt{5}-10}{7}[/tex]
This simplifies to:
[tex]\frac{-4-8i\sqrt{5} }{7}[/tex]
which is the same as:
[tex]-\frac{4}{7} -\frac{8}{7} i\sqrt{5}[/tex]
The line y+4=3/4(x-8) contains point (a,2). Find a.
Answers
Answer:
a = 16
Step-by-step explanation:
[tex]y + 4 = \dfrac{3}{4}(x-8)\\\\y + 4 = \dfrac{3}{4}x- \dfrac{3}{4}*8\\\\y +4 = \dfrac{3}{4}x-3*2\\\\y+4+6= \dfrac{3}{4}x \\\\y+10= \dfrac{3}{4}x[/tex]
Now plugin x = a and y =2 in the above equation,
[tex]2+10= \dfrac{3}{4}*a\\\\12= \dfrac{3}{4}a\\\\12* \dfrac{4}{3}=a\\\\a=4*4\\\\a=16[/tex]
:- State the property involved in the statement: 96 X (123 – 11 ) = (96 X 123 ) – (96 X 11 ) a) Distributive property of multiplication for subtraction b) closer property c) Property of unity d) commutative law
please help me please help me
Answers
Answer:
Associative property of multiplication
Step-by-step explanation:
The word "associative" comes from "associate" or "group"; the Associative Property is the rule that refers to grouping. For addition, the rule is "a + (b + c) = (a + b) + c"; in numbers, this means 2 + (3 + 4) = (2 + 3) + 4. For multiplication, the rule is "a(bc) = (ab)c"; in numbers, this means 2(3×4) = (2×3)4.
This is a statistics question.
Find the sample mean, median, and mode
10 21 32 30 31 258 18 23 25
Answers
Answer:
Mean: 49.78
Median: 25
Mode: There is no mode in this sample of values as each value appears in the sample set the same amount of times.
HELPP please.....................
Answers
Answer:
a.138 degrees
b.42 degrees
Step-by-step explanation:
2(5x+4)+3x
Solve.
No spam.
Answers
Answer:
≈13x+8
Step-by-step explanation:
Let's simplify step-by-step.
2(5x+4)+3x
Distribute:
=(2)(5x)+(2)(4)+3x
=10x+8+3x
Combine Like Terms:
=10x+8+3x
=(10x+3x)+(8)
=13x+8
[tex] \boxed {\bf Answered \: by \: subhash}[/tex]
[tex] \boxed{\bf Good \: luck \: for \: your \: assignment}[/tex]
Find the Quadratic function model that best fits this data.
Answers
Answer:
your answer is as follows
Step-by-step explanation:
the first option fits.. I.e., y=x^2-12
PLS HELPPPPPPPPPPPPPPPPPPPPPPPPP
Answers
Answer:
the answer to that I think is a or c. either one of those.
What percent is represented by the shaded area?
Answers
Answer:
34%
Step-by-step explanation:
the graph is a hundred so all you have to do is count the number of squares which is 34
Which values of a, b, and c correctly complete the division?
A. a = 4, b = 5, c = 6
B. a = 1, b = 6, c = 5
C. a = 1, b = 5, c = 6
D. a = 4, b = 6, c = 5
Answers
If we compare both sides of the equation we get,
D. a = 4, b = 6 and c = 5
Which of these numbers is the greatest? No links
A. 2.3 x 10^3
B. 8.6 x 10^3
C. 1.2 x 10^4
D. 3,600
Answers
Answer:
c. 1.2 * 10^4
Answer : D. 3,600
sorry if that's wrong
Evaluate the expression
12 - 3 2+429,- 4) for y = 3.
Answers
Answer:
9,427) y=5
is correct answer
help plz its so hard and im giving brainly and 20 points
Answers
Answer:
The answer is 5.
Step-by-step explanation:
10 ÷ 2 = 5.
Answer:
5
Step-by-step explanation:
If you want to divide ten blocks into two groups just imagine you split all of the blocks evenly, so you have ten and to have an equal amount of blocks on two sides you will put five on each side, then your answer is five because you are able now to equally divide them into two groups.
Hope it helps bai!
Happy Halloween if you celebrate it!
x2+16x+
Help me guys
Answers
If –7 + 13i is a root of the polynomial function f(x), which of the following must also be a root of f(x)?
Group of answer choices
7 + 13i
-7 - 13i
20i
-13i
Answers
Answer:
2nd option -7 - 13i
Step-by-step explanation:
took review
The question is in the picture
Answers
Answer:
1/12Step-by-step explanation:
The spinner includes 12 numbers, 1 through 12.
The probability of getting each number is equal and is one out of 12:
P(11) = 1/12Total digits=12
11 is 1 among them
So
P(11)
No of 11s'/total nos1/11Write the standard form of the equation of the circle with radius r and center (h, k).
r = 2; (h, k) = (-10, 5)
Answers
Answer:
[tex](x+10)^2+(y-5)^2=4[/tex]
Step-by-step explanation:
Hi there!
Equation of a circle: [tex](x-h)^2+(y-k)^2=r^2[/tex] where [tex](h,k)[/tex] is the center of the circle and [tex]r[/tex] is the radius
Plug in the center (-10,5) and the radius 2:
[tex](x-(-10))^2+(y-5)^2=2^2\\(x+10)^2+(y-5)^2=4[/tex]
I hope this helps!
pls help i need this all my questions disappered
Answers
Which of the following statements is true?
Answers
Answer:
lol what
Step-by-step explanation:
i dont get it xD
Where is the question??
I mean,Where is the options?
can you tell me pls..I will answer it correctly ❤️
Have a good day!
A soda company had sales of $35,107 million in 2010 and $45,992 million in 2014. Use the Midpoint Formula to estimate the sales in 2012. that the sales followed a linear pattern
Answers
Answer:
40,550
Step-by-step explanation:
40, 550 is the mod point
What is the relationship between the standard deviation of the sample mean and the population standard deviation?
Answers
The mean of the sample mean ˉX that we have just computed is exactly the mean of the population. The standard deviation of the sample mean ˉX that we have just computed is the standard deviation of the population divided by the square root of the sample size: √10=√20/√2.
Answer:
Step-by-step explanation:
The mean of the sample mean ˉX that we have just computed is exactly the mean of the population. The standard deviation of the sample mean ˉX that we have just computed is the standard deviation of the population divided by the square root of the sample size: √10=√20/√2.
a bottle holds 80 fluid ounces of lemonade. how much is this in pints
Answers
Answer: 5 pints
Step-by-step explanation:
divide the volume value by 16
so 80 divided by 16.
Samuel was preparing for the triathlon. He did 3 activities every morning: Ran for 30 minutes, covering 4.5 miles. Swam for 20 minutes, covering 2/3 mi. biked for 45 min, covering 9 miles. What was Samuel's average speed during his morning training?
PLEASE HELP!!!
Answers
Answer:
≈ 0.15 miles per minuteStep-by-step explanation:
Speed = distance / time
Let's find total distance and time
Distance
4.5 + 2/3 + 9 = 45/10 + 2/3 + 9 = 9/2 + 2/3 + 9 = (27 + 4 + 54)/6 = 85/6Time
30 min + 20 min + 45 min = 95 minAverage speed
85/ 6 ÷ 95 = 85/6*1/95 = 17/114 ≈ 0.15 miles per minuteAnswer:
8.9474
Step-by-step explanation:
just trust me please i swear to god it is 8.9474
Please answer the following questions. D Question 1 Morgan won $2,315 at a work raffle. They deposited $1898.30 into their savir What percent of their winnings did they deposit into their savings account? D Question 2
Answers
How many triangles are here
Answers
Answer:
6 types of triangles?
isosceles, equilateral, scalene, obtuse, acute, and right
How many Triangles are where ?
there is no image of triangles
thus i can not tell you how many triangles there are