which of the sentences are true? 77.28 is less than 77.25, 32.641 is greater than 32.645, 67.492 is greater than 67.692, or 91.631 is less than 91.681?
Answer:
1- true
2- false
3- false
4- true
Answer:
91.631 is less than 91.681
Step-by-step explanation:
approximately:
91.631= 91.6
91.681= 91.7
A bakery works out a demand function for its chocolate chip cookies and finds it to be q = D(x) = 760 - 13x, where is the quantity of cookies sold when the price per cookie, in cents, is x.
A) Find the elasticity.
B) At what price is the elasticity of demand equal to 1?
C) At what prices is the elasticity of demand elastic?
A. Prices are elastic at all values.
B. Prices cannot be elastic in this case.
C. Greater than.
D. Less than .
D) At what prices is the elasticity of demand inelastic?
A. Greater than.
B. Less than.
C. Prices are inelastic at all values.
D. Prices cannot be inelastic in this case.
E) At what price is the revenue a maximum?
F) At a price of ¢ per cookie, will a small increase in price cause the total revenue to increase or decrease?
A. Increase.
B. Decrease.
Answer:
1. 13x/760-13x
2. X = 29.23
3. X> 29.23
4. X<29.23
5. Max price = 29.23c
Step-by-step explanation:
1. D(x) = 760-13x
To get Elasticity, we differentiate the equation
D'x = -13
Elasticity is expressed as:
E(x) = -x*D'(x)/760-13x
= X(-13)/760-13x
[tex]\frac{-13x}{760-13x}[/tex]
B. Price elasticity with demand = 1
13x/760-13x = 1
We cross multiply
13x = 1(760-13x)
13x = 760-13x
Collect like terms
26x = 760
X = 29.23
C. When elasticity of demand is elastic
13x/760-13x > 1
We cross multiply
13x > 1(760-13x)
13x > 760-13x
Collect like terms
26x > 760
X > 29.23
C. Greater than 29.23
D. When inelastic
This follows same solution as 2 and 3 but the sign is different.
E(x) <1
13x/760-13x < 1
We cross multiply
13x < 1(760-13x)
13x < 760-13x
Collect like terms
26x < 760
X < 29.23
B. less than 29.23
E. We get total revenue
X(760-13X)
= 760x - 13x²
We differentiate this
760-26x = 0
760 = 26x
X = 29.23
revenue is a maximum at price is 29.23c
f. The last question is incomplete
PLEASE HELP HURRY
What is the area of this figure?
4 cm:
Enter your answer in the box
cm?
5 cm
5 cm
Answer:
100cm
Step-by-step explanation:
I hope this help:)
Answer:
35 square cm
Step-by-step explanation:
Square area: 5 cm x 5 cm = 25 square cm.
Triangle area: 4 cm x 5 cm / 2 = 10 square cm.
25+10=35 square cm.
What is the missing polynomial -(20-4x-5x2)=20-7x2
Answer:
? – (20 – 4x – 5x2) = 20 – 7x2, so ? = 20 – 7x2 + (20 – 4x – 5x2)
? = 20 – 7x2 + (20 – 4x – 5x2)=20-7x²+20-4x-5x²=40-12x²-4x
the answer is 40-4x-12x^2
Step-by-step explanation:
Answer:
40-4x-12x^2
Step-by-step explanation:
If (-5,3) is reflected over the y-axis what would the new points be?
Answer:
(5, 3)
Step-by-step explanation:
How are relations that are
functions similar those that
are not functions? How are
they different?
Answer:
so the picture attached is not a function, but it looks it exactly like a function, or y=x^2. Functions are relations are similar that they both relate something, but functions are sets of relations put together, as long as their are is only one output per one input
help me please
I need fast
Answer:
48 is the answer because if you were to have been remembering past questions that has that same picture but answered it would be 48
PLEASE HELP ME I REALLLY NEED TO DO THIS I WILL GIVE THE CORRECT ANSWER BRAINLY PLEASEEEEE
Answer:
21 is the correct answer
it's just a logical question
just do multiply with 2 and add 1
answer will come
as above:4 is given
4×2+1
8+1
9
second:12
12×2+1
24+1
25
A middle school took all of its 6th grade students on a field trip to see a ballet. The students filled 1898 seats, which was 73% of the total number of seats in the theater. How many total seats were in the theater?
Answer: 2600
Step-by-step explanation:
Using the formula p=%w(part=percent x whole), it would be 1898=.73x, then I used railroad tracks to divide .73 from both sides and got 2600=x
Find the percent increase. From $5.00 to $9.00
a rally car race course covers 515.97 miles the winning car completed the course in 6.5 hours.what was the average speed of the winning car?
Answer:ere
You have to
Step-by-step explanation:
basically everything is in the picture PLEASE HELP me with those THREE questions ASAP
A table is on sale for $469, which is 33% less the regular price. What is the regular price
Answer: I think it is 67
Step-by-step explanation:
BRAINLIEST AND 10 POINTS
When comparing the results of multiplying polynomials using the horizontal method and the vertical method, ____________.
1. the results will never be the same.
2. the vertical method will be correct only when the polynomials have no more than three terms.
3. the horizontal method will be correct when the polynomials have no more than three terms.
4. the results will be the same.
Answer:
#3 is the answer
Step-by-step explanation:
WILL GIVE BRAINLIEST!!!! what is the inverse of the equation y=x^2
Answer:
y=2^x
Step-by-step explanation:
What's the value of (3x+12)
Can someone please give me the answer?
Answer:
the correct answer is C
-----------------------------------
Answer:
The III
Step-by-step explanation:
go right three times and down four times
6x+3y= -9
find the slope and y-intercept
Answer:
Slope: -2
y-intercept: -3 or (0, -3)
Step-by-step explanation:
y = mx + b
m = slope
b = y-intercept
6x+3y= -9
3y = -6x - 9
y = -2x - 3
PLEASE HELP ME B4 I LOOSE IT THANK YOU!<33
Answer:
4Step-by-step explanation:
[tex]s = slant[/tex]
[tex]h = \sqrt{s^{2} } - ( \frac{a}{2} ) ^{2}[/tex]
[tex]h = \sqrt{5^{2} } - ( \frac{6}{2} ) ^{2}[/tex]
[tex]h = \sqrt{5^{2} } - 3^{2}[/tex]
[tex]h=[/tex] 4
Turn
2. Lorna earns PHP 71.75 per hour for gardening. If she will work for 21 hours
month, then how much will she earn?
Answer:
$1506.75 earned by working 21 hours of the month
Step-by-step explanation:
$71.75 ($ per hour) x 21 (hours) = $1506.75 (total earned for working 21 hours)
I hope this helps :)
Please help me! I need this assignment due today!
Answer: i don't no the answer, but do u go to connexus acadeny
Step-by-step explanation:
Consider the expression x + 6. What is the value of the expression when x = 4
Answer:
4+6
answer is 10
simple.
Please help me with this question
Answer:
arrow A
Step-by-step explanation:
6 out of 30 or 1/5 which is arrow A
Please help and look at the others
Answer:
no
Step-by-step explanation:
pls give brainliest :)
Find the slope of the line that passes through the following points.
(2.10) and (5.8)
Answer:
[tex]-\frac{2}{3}[/tex]
Step-by-step explanation:
the value of the required slope can be calculated from:
[tex]s=\frac{y_1-y_2}{x_1-x_2};[/tex]
[tex]s=\frac{10-8}{2-5};[/tex]
finally,
[tex]s=-\frac{2}{3}.[/tex]
Note, the suggested option is not the only one.
7
Select all expressions that are equivalent to 6(7a + 9b).
(1 Point)
3(14a + 18b)
2(11a + 13b)
42a + 9b
42a + 546
Answer:
6(7a + 9b) = 3(14a + 18b)
Step-by-step explanation:
We need to find the equivalent expression for the given expression i.e. 6(7a + 9b).
We can use the distributive property here such that,
a(b+c) = ab + ac
We have, a = 6, b = 7 and c = 9
6(7a + 9b) = 6(7a) + 6(9b)
= 42a + 54b
or taking 3 common from the above expression.
= 3(14a+18b)
Hence, the correct option is (a).
Draw an isosceles Triangle with exactly one 40 degrees angle. Is this the only possibility or can you draw another triangle that will also meet these conditions? How is this different from drawing a triangle given 2 sides and the angle between them?
Please answer ASAP Due today PLEASE!!!
Answer:
The correct answer is yes, we can draw an isosceles triangle with only one 40° angle. NO this is not the only possibility.
Step-by-step explanation:
plz mark brainliest
Joseph just bought a brand new cell phone and a warranty for the cell phone. The warranty cost 300 euros and
is worth 800 euros if his phone breaks. Joseph estimates that there is a 20% chance of his phone breaking.
Col
Joseph calculates the expected value of buying the warranty to be -140 euros.
Which of the following statements are true?
MY
Choose all answers that apply:
Pro
Pro
Joseph will certainly lose value from the warranty.
Tea
Joseph will certainly gain value from the warranty.
If Joseph was going to buy a large number of phones, and he bought the warranty on each phone,
he should expect to lose value from the warranties.
Answer:
If Joseph was going to buy a large number of phones, and he bought the warranty on each phone, he should expect to lose value from the warranties.
Step-by-step explanation:
Given - Joseph just bought a brand new cell phone and a warranty for the cell phone. The warranty cost 300 euros and is worth 800 euros if his phone breaks. Joseph estimates that there is a 20% chance of his phone breaking.
Joseph calculates the expected value of buying the warranty to be -140.
To find - Which of the following statements are true?
Joseph will certainly lose value from the warranty.
Joseph will certainly gain value from the warranty.
If Joseph was going to buy a large number of phones, and he bought the warranty on each phone, he should expect to lose value from the warranties.
Proof -
Given that , expected value = -140
⇒It means Joseph lose 140
(negative represents loss )
Now,
Given the expected values, it means we have given the probability so we can not be sure about loosing money
So,
The 1st and 2nd option is wrong because certain means sure because in the question we are not sure that Joseph phone will break or not.
Now,
The 3rd option says that if Joseph buy large amount of phone then he expect to lose value from from warranties .
This is the correct option because if we buy phones and warranty on phone then the expected value will divide on each phone.
So, the chance of impact on loss will decrease.
The correct option is - If Joseph was going to buy a large number of phones, and he bought the warranty on each phone, he should expect to lose value from the warranties.
Cystic fibrosis (CF) is a hereditary lung disorder that often results in death. It can be inherited only if both parents are carriers of an abnormal gene. In 1989, the CF gene that is abnormal in carriers of cystic fibrosis was identified. The probability that a randomly chosen person of European ancestry carries an abnormal CF gene is 1/25. (The probability is less in other ethnic groups.) The CF20m test detects most, but not all, harmful mutations of the CF gene. The test is positive for 90% of people who are carriers. It is never positive for people who are not carriers.
Required:
Compute the probability that a randomly chosen person of European ancestry does not carry an abnormal CF gene given that he /she tested negative.
Answer:
0.9959 = 99.59% probability that a randomly chosen person of European ancestry does not carry an abnormal CF gene given that he /she tested negative.
Step-by-step explanation:
Conditional Probability
We use the conditional probability formula to solve this question. It is
[tex]P(B|A) = \frac{P(A \cap B)}{P(A)}[/tex]
In which
P(B|A) is the probability of event B happening, given that A happened.
[tex]P(A \cap B)[/tex] is the probability of both A and B happening.
P(A) is the probability of A happening.
In this question:
Event A: Tested negative
Event B: Does not carry an abdornal CF gene.
Probability of a negative test:
10% of 1/25 = 0.04 = 4%
100% of 100 - 4 = 96%. So
[tex]P(A) = 0.1*0.04 + 1*0.96 = 0.964[/tex]
Negative test and not carrying an abdornal gene:
100% of 96%. So
[tex]P(A \cap B) = 1*0.96 = 0.96[/tex]
Compute the probability that a randomly chosen person of European ancestry does not carry an abnormal CF gene given that he /she tested negative.
[tex]P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.96}{0.964} = 0.9959[/tex]
0.9959 = 99.59% probability that a randomly chosen person of European ancestry does not carry an abnormal CF gene given that he /she tested negative.
A poster is 6 feet tall and 3 feet wide. What is it's perimeter?
Answer:
18 ft
Step-by-step explanation:
6 ft + 3 ft + 6 ft + 3 ft = 18 ft
Answer:
18 ft
Step-by-step explanation:
if its 6 feet tall and 3 feet wide you add 6+6+3+3