Answers
Answer:
12/7
Step-by-step explanation:
Related Questions
a number, a variable, or a product of a number and one or more variables
Answers
Answer:
Polynomials
Step-by-step explanation:
SUppose the total cost C(x) to manufacture a quantity x of insecticide (in hundreds of liters) is given by
C(x) = x^3-27x^2+240x+850.
a. Where is C(x) decreasing?
b. Where is C(x) increases?
Answers
Answer:
a) [tex]C(x)[/tex] is increasing in two regions: (i) [tex](+\infty, 8\,s)[/tex] and (ii) [tex](10\,s,+\infty)[/tex].
b) [tex]C(x)[/tex] decreases in [tex](8\,s, 10\,s)[/tex].
Step-by-step explanation:
Let [tex]C(x) = x^{3}-27\cdot x^{2}+240\cdot x +850[/tex], where [tex]x[/tex] is the quantity of insecticide, measured in hundreds of liters, and [tex]C(x)[/tex] is the total manufacturing cost as a function of the quantity of the insecticide, measured in US dollars. A possible approach to determine which regions of [tex]C(x)[/tex] are decreasing and increasing by means of the first derivative and graphing tools. The first derivative of the function is:
[tex]C'(x) = 3\cdot x^{2}-54\cdot x+240[/tex] (1)
Please notice that regions where C(x) is increasing has [tex]C'(x) > 0[/tex], whereas [tex]C'(x) < 0[/tex] when [tex]C(x) < 0[/tex].
We notice that [tex]C(x)[/tex] is increasing in two regions: (i) [tex](+\infty, 8\,s)[/tex] and (ii) [tex](10\,s,+\infty)[/tex]. Besides, [tex]C(x)[/tex] decreases in [tex](8\,s, 10\,s)[/tex].
12x^3-9x^2 factorised
How would you answer this?..
Answers
Answer:
Changes made to your input should not affect the solution:
(1): "x2" was replaced by "x^2". 1 more similar replacement(s).
STEP
1
:
Equation at the end of step 1
(12 • (x3)) - 32x2
STEP
2
:
Equation at the end of step
2
:
(22•3x3) - 32x2
STEP
3
:
STEP
4
:
Pulling out like terms
4.1 Pull out like factors :
12x3 - 9x2 = 3x2 • (4x - 3)
Final result :
3x2 • (4x - 3)
The diagram represents a triangle that is reduced by a scale factor of 0.4.
A rectangle has a base of 6 inches and a height of 2 inches.
What is the height of the original triangle?
0.8 inches
2.4 inches
5 inches
8 inches
Answers
Answer:the answer would be 8.
Step-by-step explanation:
If you look at the reduced triangle, the height is 2. Therefore you would have to multiply by 4 instead of 0.4 even if the scale factor is 0.4. The reason is, you are enlarging the triangle to find the bigger triangle. If you did 0.4 times 2 you would get 0.8. But that wouldn’t make any sense if you said that that was the height of the ENLARGED triangle.
Answer:
8
Explanation:
Brainliest would be nice
Recent test scores on the Law School Admission Test (LSAT) are normally distributed with a mean of 162.4 and a standard deviation of 15.9. What is the probability that the mean of 8 randomly selected scores is less than 161?
Answers
Answer:
0.40166
Step-by-step explanation:
When given random number of samples, we solve using the z score formula:
z = (x-μ)/σ/√n where
x is the raw score= 161
μ is the population mean = 162.4
σ is the population standard deviation = 15.9
n is random number of samples = 8
Hence,
z = 161 - 162.4/15.9/√8
z = -0.24904
Probability value from Z-Table:
P(x<161) = 0.40166
The probability that the mean of 8 randomly selected scores is less than 161 is 0.40166
Jina's dance recital started at 4:46 PM. It ended at 6:13 PM. How long did the recital last?
Answers
Answer:
Jina's recital lasted 2 hours and 7 minutes
Hope that helped
Step-by-step explanation:
Answer:
2 hour and 7 minutes is the answer
a small toy car costs $3 a large toy car cost 5 times as much as the small one.
Answers
Answer:
$15
Step-by-step explanation:
Good Morning!
If the small toy car costs $3.00, and the large toy car costs 5 times as much as the small one, we can multiply the value of the small car by five to find the value of the large car.
Since five times 3 = 15, the value of the large toy car is $15.00.
~theLocoCoco
3. A fish is 18 feet below the surface of a lake. The fish swims up 12 feet before diving 45 feet. What equation can be used to find the current depth of the fish?
Answers
Answer:i think its -51
Step-by-step explanation:(-18+12)-45
G
Use the graph to answer the question.
y
6
R
5
4
3-
2
1
O
3
What are the coordinates of point R on the graph? Choose numbers to move to the lines to answer the question,
5
6
0
1
2
Answers
Answer: 0,5
Step-by-step explanation:
3 - 1 1/4
This is Fractions
Answers
To make your fraction while you would add 3/4 to get 2 and the add one to get 3
So you answer would be 1 3/4
Identify the center of the circle.
Center=?
Help pls!!!
*its hw*
Answers
Answer:
the center of the circle seems to be at E
Step-by-step explanation:
this however is a guess, tell me if I'm right
A town has two high schools. All of the 11th grade girls from both schools will combine to form a district debate team. Only 20
students will be on the team. If every 11th grade female student tries out for the team, what percent of students will be on the team?
Answers
Answer:
60Step-by-step explanation:
please help! thanks :)
A file that is 247 MB is being downloaded.
if the download is 17.5% completed, how many megabytes have been downloaded? Round your answer to the nearest 10th.
Answers
Answer:
43.2 MB
Step-by-step explanation:
The amount that has been downloaded is 17.5% of 247 MB. This is equal to 17.5% [tex]\times[/tex] 247 (in general, "of" always indicates that you should multiply). 17.5% is equal to [tex]17.5/100[/tex], or 0.175.
Therefore, the amount that has been downloaded is 0.175 * 247, which is 43.225 MB. Rounded to the nearest tenth, this is 43.2 MB.
7/24.15 what is the anwser?
Answers
Answer:
0.28985507246
Step-by-step explanation:
Answer:
if you meant 7 divided by 24.25 your answer would be 20/69 or 0.2898 in decimal form
Step-by-step explanation:
Do the first 15 Questions With work shown
Answers
Answer:
ching chong
Step-by-step explanation:
Appliances at Discount City Store are on sale for 55% off of the original price. If the original price of a washing machine is $500, what does it cost after being reduced by 55% (before tax)?
Answers
Answer:
it will cost $255.
Step-by-step explanation:
225.
a product that normally costs $500 with a 55 percent discount will cost you $225.00, and you saved $275.00. You can also calculate how much you save by simply moving the period in 55.00 percent two spaces to the left, and then multiply the result by $500 as follows: $500 x . 55 = $275.00 savings.
One day, Nat's dog drank 3 times as much water
as his cat. If his cat drank 0.83 liter of water, how
many liters did his dog drink?
Answers
Answer:
2.49 liters
Step-by-step explanation:
Identify the graphed linear equation.
A) y = 5x + 2 y = 5x + 2
B) y = 5x - 2 y = 5x - 2
C) y = -5x + 2 y = -5x + 2
D) y = -5x - 2 y = -5x - 2
Answers
Answer:
Option (D)
Step-by-step explanation:
Let the equation of the given line is,
y = mx + b
m = slope of the line
b = y-intercept
From the graph attached,
Slope 'm' = [tex]\frac{\text{Rise}}{\text{Run}}[/tex]
m = [tex]\frac{-5}{1}[/tex] = -5
y-intercept of the given line = -2
Therefore, equation will be,
y = -5x - 2
Option (D) is the correct option.
Tell whether the triangles are similar.Explain.
Answers
Answer: 13. yes 14. no
Step-by-step explanation:
13. same angles sized down
14. different angles sized down
2 * 2 * 4 * 5 * 6 * 2 * 2 * 5 * 7 * 5 = ? will mark brainliest!
Answers
Answer:
336,000
Step-by-step explanation:
2 × 2 = 4 x 4 = 16 × 5 = 80 × 6 = 480 x 2 = 960 x 2 = 1920 × 5 = 9600 x 7 = 62700 × 5 = 336,000
solve each equation by finding square roots. If the equation has no real number solution, write no solution. 64b^2=16
Answers
What is the slope for the line 8x-4y=24
Answers
Answer:
the slope is 2
Step-by-step explanation:
subtract 8x from both sides to get -4y = -8x + 24
then divide by -4 to get:
y = 2x - 6
plleaasseee hurrry need help now
Answers
Answer:
107º
Step-by-step explanation:
Okay, if 135 is adjacent to an ungiven side, then to find that, you subtract 135 from 180.
180 - 135 = 45
So the other side is 45. Now we find the last unknown given side, and since we know 180 degrees is the sum of the degrees in a triangle, we do:
28 + 45 + x = 180
73 + x = 180
Subtract 73 on both sides you get,
x = 107.
Measure DEF is 107.
Petra bought some art supplies from an online retailer. The retailer charges a $5.95 shipping fee or 7.5% of the total purchase, whichever is
greater. If Petra's total purchase is $75,99, how much shipping will she pay?
Answers
Answer:
$81.94
Step-by-step explanation
I would subtract 5.95 to 75.99 first and get a total of 70.04 and put it off to the side then I would find out what 7.5 of the total purchase is (75.99) and that is 5.70 rounded and in the paragraph it said "whatever one is bigger" and in this case the 5.95 is bigger so you would add that to your total and get $81.94
PLEASE HELPPPP!!
Which algebraic representation of a transformation on a coordinate grid does NOT preserve congruence?
A: (x,y) (x+6,+6)
B:(x,y) (-x,y)
C: (x,y) (6x,6y)
D: (x,y) (-y,x)
Answers
Answer:
qwsedfgh
Step-by-step explanation:
A normal population has a mean m=33 and standard deviation s = 9. What is the probability that a randomly chosen value will be greater than 44?
Answers
Answer: 0.1112
Step-by-step explanation:
Let X be a random variable .
Given: A normal population has a mean m=33 and standard deviation s = 9.
The probability that a randomly chosen value will be greater than 44 will be :-
[tex]P(X>44)=P(\dfrac{X-m}{s}>\dfrac{44-33}{9})\\\\=P(Z>\dfrac{11}{9})\\\\=P(Z>1.22)\\\\ =1-P(Z<1.22)\\\\=1-0.8888\\\\=0.1112[/tex]
Hence, the probability that a randomly chosen value will be greater than 44 = 0.1112
A normal population has a mean m=33 and standard deviation s = 9. the probability that a randomly chosen value will be greater than 44 is - 28.774%
Given:
mean m=33
standard deviation s = 9
probability = ?
Solution:
(34-39)/9 = -0.5556
which mean
34 is -0.5556 standard deviations from the mean.Using the normal distribution table,P(Z<-0.5556) ≈ 0.28774
or 28.774%
Thus, A normal population has a mean m=33 and standard deviation s = 9. the probability that a randomly chosen value will be greater than 44 is - 28.774%
Learn more:
https://brainly.com/question/475676
Find the absolute maximum of m(t)=t^3-12t^2-144t and justify your answer
Answers
Answer:
Step-by-step explanation:
m(t)=t³-12t²-144t
Take the derivative of t:
t'=3t²-24t-144
Set it to 0:
3t²-24t-144=0
Solve for t:
t²-8t-48=0
(t-12)(t+4)=0
t=12 or -4
On a graph, you'll find that the maximum value occurs at t=-4 ..............
Where do most interactions between the three non-living Earth systems occur? *NEED HELP ASAP, WILL MARK BRAINLIEST!!!*
Answers
Alatio is used to make comparisons between 2 quantities.
O True
O False
Answers
Answer: True
Step-by-step explanation:
Which of these functions are linear?
Choose all that apply.
Ay+ 4 = 2x
By=3-x?
с
X
0
1
2
3
4
у
-1
-0.5
o
-0.5
-1
D
X
-2
2.5
wlo
1
3.25
2
3.5
у
2.75
E
-51
-2
2
F