Answer:
The answer is A and B.
Step-by-step explanation:
Find the dervite of y=X^2 + x + 1
Answer:
2x + 1.
Step-by-step explanation:
y=x^2 + x + 1
Using the algebraic derivative rule, if y = ax^n then y' = anx^(n-1) :
The derivative is 2x^(2 - 1) + 1x^(1-1)
= 2x^1 + x^0
= 2x + 1.
Answer:
y'(x) = 1 + 2 x
Step-by-step explanation:
Find the derivative of the following via implicit differentiation:
d/dx(y) = d/dx(1 + x + x^2)
Using the chain rule, d/dx(y) = ( dy(u))/( du) ( du)/( dx), where u = x and d/( du)(y(u)) = y'(u):
d/dx(x) y'(x) = d/dx(1 + x + x^2)
The derivative of x is 1:
1 y'(x) = d/dx(1 + x + x^2)
Differentiate the sum term by term:
y'(x) = d/dx(1) + d/dx(x) + d/dx(x^2)
The derivative of 1 is zero:
y'(x) = d/dx(x) + d/dx(x^2) + 0
Simplify the expression:
y'(x) = d/dx(x) + d/dx(x^2)
The derivative of x is 1:
y'(x) = d/dx(x^2) + 1
Use the power rule, d/dx(x^n) = n x^(n - 1), where n = 2.
d/dx(x^2) = 2 x:
Answer: y'(x) = 1 + 2 x
In ∆ABC, if sin A = 4/5 and tan A = 4/3 , then what is cos A?
A. 3/5
B. 4/5
C. 3/4
D. 5/3
Answer:
A = 3/5
Step-by-step explanation:
At the outset, the question doesn't give us a figure to refer to nor does it tell us if this is a right angled triangle. However we observe that both sin A and tan A have the numbers 3, 4 and 5. We recognize this to be consistent with 3-4-5 standard right angled triangle.
Hence we can guess that it is probably a right angled triangle, but we should do the following to confirm:
Knowning that for a right angled triangle,
sin A = opposite / hypotenuse = 4/5
tan A = opposite / adjacent = 4/3
From this we can surmise that
Opposite = 4
hypotenuse = 5
adjacent = 3
Assemble the triangle to see if this works (see attached). We can futher verify that 3-4-5 works using the Pythagorean theorem.
Now that we have determined that the triangle is a 3-4-5 right angled triangle,
cos A = adjacent / hypotenuse = 3/5
Answer:
A
Step-by-step explanation:
Which are the roots of the quadratic function f(q) = q2 – 125
Answer:
q = ± 5[tex]\sqrt{5}[/tex]
Step-by-step explanation:
Given
q² - 125 = 0 ( add 125 to both sides )
q² = 125 ( take the square root of both sides )
q = ± [tex]\sqrt{125}[/tex]
= ± [tex]\sqrt{25(5)}[/tex]
= ± [tex]\sqrt{25}[/tex] × [tex]\sqrt{5}[/tex]
= ± 5[tex]\sqrt{5}[/tex]
Answer:
Roots are [tex]q=5\sqrt{5},-5\sqrt{5}[/tex]
Step-by-step explanation:
Given : Function [tex]f(q)=q^2-125[/tex]
To find : Which are the roots of the quadratic function ?
Solution :
To find the roots equate the function to zero.
[tex]q^2-125=0[/tex]
Add 125 both side,
[tex]q^2=125[/tex]
Taking root both side,
[tex]q=\pm \sqrt{125}[/tex]
[tex]q=\pm \sqrt{5\times 5\times 5}[/tex]
[tex]q=\pm 5\sqrt{5}[/tex]
Therefore, roots are [tex]q=5\sqrt{5},-5\sqrt{5}[/tex]
Which of the following is the correct factorization of the polynomial below?
p3 - 343q3
ANSWER
The correct factorization is
[tex]p^{3} - 343q^{3} = (p - 7q)( {p}^{2} + 7pq + {49q}^{2} )[/tex]
EXPLANATION
The given expression is
[tex] {p}^{3} - 343 {q}^{3} [/tex]
We can write this as difference of cubes.
[tex]{p}^{3} - {7}^{3} {q}^{3} [/tex]
[tex]{p}^{3} - ( {7} {q})^{3} [/tex]
We can now factor using the difference of cube identity:
[tex] {x}^{3} - {y}^{3} = (x - y)( {x}^{2} + xy + {y}^{2} )[/tex]
We substitute x=p and y=7p to get:
[tex]{p}^{3} - ( {7} {q})^{3} = (p - 7q)( {p}^{2} + p \times 7q + ({7q})^{2} )[/tex]
[tex]{p}^{3} - ( {7} {q})^{3} = (p - 7q)( {p}^{2} + 7pq + {49q}^{2} )[/tex]
Final answer:
The polynomial p^3 - 343q^3 is factorized as (p - 7q)(p^2 + 7pq + 49q^2) using the difference of cubes formula.
Explanation:
The correct factorization of the polynomial p3 - 343q3 can be done using the difference of cubes formula, which is a3 - b3 = (a - b)(a2 + ab + b2). Comparing the given polynomial to the formula, we see that a corresponds to p and b corresponds to 7q since 343 is 7 to the power of 3. Therefore, the factorization would be (p - 7q)(p2 + 7pq + 49q2). Always check for the correct signs and coefficients when factoring polynomials, especially when dealing with differences and sums of cubes.
Find the discriminant of 3x2 - 10X=-2.
Answer:
76
Step-by-step explanation:
Given a quadratic in standard form : ax² + bx + c : a ≠ 0, then
the discriminant Δ = b² - 4ac
Given
3x² - 10x = - 2 ( add 2 to both sides )
3x² - 10x + 2 = 0 ← in standard form
with a = 3, b = - 10 and c = 2
b² - 4ac = (- 10)² - (4 × 3 × 2) = 100 - 24 = 76
Answer:
Discriminant : 74 .
Step-by-step explanation:
Given : 3x² - 10x = -2.
To find : Find the discriminant .
Solution : We have given 3x² - 10x = -2.
On compare with standard form ax² +bx +c = 0.
Where, a =3 ,b = -10 , c = 2.
Discriminant : [tex]b^{2} - 4ac[/tex].
Plug the values of a , b , c .
Discriminant : [tex](-10)^{2} - 4(3)(2)[/tex].
Discriminant : 100 - 24 .
Discriminant : 74 .
Therefore, Discriminant : 74 .
convert the polar representation of this complex number into its rectangular form: z=5(cos pi+i sin pi)
Answer:
The complex number z = -5 into its rectangular form
Step-by-step explanation:
* Lets revise the complex numbers
- If z = r(cos Ф ± i sin Ф), where r cos Ф is the real part and i r sin Ф is the
imaginary part in the polar form
- The value of i = √(-1) ⇒ imaginary number
- Then z = a + bi , where a is the real part and bi is the imaginary part
in the rectangular form
∴ a = r cos Ф and b = r sin Ф
* Lets solve the problem
∵ z = r (cos Ф ± i sin Ф)
∵ z = 5 (cos π + i sin π)
∴ The real part is 5 cos π
∴ The imaginary part is 5 sin π
- Lets find the values of cos π and sin π
∵ The angle of measure π is on the negative part of x axis at the
point (-1 , 0)
∵ x = cos π and y = sin π
∴ cos π = -1
∴ sin π = 0
∴ a = 5(-1) = -5
∴ b = 5(0) = 0
∴ z = -5 + i (0)
* The complex number z = -5 into its rectangular form
Answer:
(-5,0)
Step-by-step explanation:
just cuz
Helpppppp helpppppppp plssssssssss
Answer:
Its a four sided polygon
A vegetable farmer fills of a wooden crate with of a pound of tomatoes. How many pounds of tomatoes can fit into one crate?
A.
14/15 of a pound
B.
2 1/10 pounds
C.
1 1/14 pounds
D.
10/21 of a pound
To determine how many pounds of tomatoes can fit into one crate, calculate 2/3 of a pound for 1/4 of the crate, and then multiply by 4. The answer is 2 1/10 pounds.
Explanation:A vegetable farmer fills 3/4 of a wooden crate with 2/3 of a pound of tomatoes.
First, find how many pounds of tomatoes are in 1/4 of a crate by multiplying 2/3 pound by 1/4.Then, multiply this result by 4 to find the total pounds of tomatoes that can fill one whole crate.The correct answer is B. 2 1/10 pounds. Convert four 4/5 into a percentage
Answer:
Answer is 0.80%
Step-by-step explanation:
Because if you divide the numerator by the denominator, you'll get your answer.
Hope my answer has helped you!
Answer:
80%
Step-by-step explanation:
Divide 4 by 5 to get 0.8
0.8 is the percentage written as a decimal. To write it as a percentage, multiply the decimal by 100.
0.8 x 100 = 80.
So your answer is 80%
Samuel is running a 3-mile race. He would like to finish the race in under 33 minutes. He has already run for 10.5 minutes. The inequality 10.5 + x < 33 represents the situation. Solve the inequality. How is the solution interpreted in the context of the problem? x < 22.5; Sam has a maximum of 22.5 minutes left to finish running. x < 22.5; Sam has fewer than 22.5 minutes left to finish running. x > 43.5; Sam has at least 43.5 minutes left to finish running. x < 43.5; Sam has no more than 43.5 minutes left to finish running.
Answer: Second Option
x < 22.5; Sam has fewer than 22.5 minutes left to finish running
Step-by-step explanation:
We have the following inequality
[tex]10.5 + x < 33[/tex]
Notice that 10.5 is the amount of time in minutes that Samuel has run.
x represents the amount of additional time it will take to finish the race
33 represents the time limit in which you want to finish the race
The we solve the inequality
[tex]10.5 + x < 33[/tex]
Subtract 10.5 on both sides of the inequality
[tex]10.5 -10.5 + x < 33-10.5[/tex]
[tex]x < 33-10.5[/tex]
[tex]x < 22.5[/tex]
This result means that Samuel must finish the race before 22.5 minutes have elapsed
The answer is the second option
Answer:
X<22.5;sam has fewer than 22.5 left to finish running
Step-by-step explanation:
edgen.
Students from grade 11 and 12
Can you someone please help me with this question?
Tyler is building a fish tank in the shape of a sphere that has a diameter of 18 inches. Based on Tyler's research, it is recommended to have no more than 1 goldfish for every 693 cubic inches of water. How many goldfish should Tyler buy for his fish tank?
The unclear query may pertain to post-high school plans or high school curriculum. The majority of high school graduates in the US tend to pursue higher education immediately after graduating. Similarly, the number of English courses taken by male and female high school students is typically equivalent.
Explanation:The question is somewhat ambiguous as it does not specify a clear query related to students from grade 11 and 12. However, deriving from the provided information, perhaps the student is seeking to understand statistics related to post-high school plans, or is interested in curriculum reviews, or the number of English courses taken by students.
For instance, focusing on life after high school, we know that a significant majority of high school graduates in the US (~69%) begin their college journey immediately following their graduation. This indicates that the orientation towards pursuing higher education is prevalent among recent high school graduates.
On the other hand, if interest lies in the English curriculum, an analysis reveals that the mean number of English courses taken by both male and female high school students over two years generally align with each other.
Learn more about High School Statistics here:https://brainly.com/question/28417349
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An athlete jumped 5.5 feet which was 1.1 times higher than the previous jumper how high did the previous athlete jump
Answer:
5 ft
Step-by-step explanation:
Let the height of the previous jump be represented by j. Then 1.1j = 5.5 ft.
Dividing both sides by 1.1, we get j = 5 ft. This was the height of the previous jump.
Answer:
5 ft
Step-by-step explanation:
The previous jumper jumped p
The new jumper jumped p*1.1 and that was 5.5 ft
1.1p = 5
Divide each side by 1.1
1.1p/1.1 = 5.5/1.1
p = 5
The previous jumper jumped 5 ft
70 POINTS!!
14. The population of a town is 18,922 people. Each year the population increases by 3%. What will the town's population be in 17 years? Round your answer to the nearest whole number.
31,275
2,412,376
11,274
70,129
The answer would be: A. 31,275
to solve this you would take the population (18,922) and multiply it as shown below:
18,922(1+0.03)^17
This would equal 31,275 which would be your answer.
Hope this helps! :3
Please help me and please show your answer or explain please
Answer:
31.96
Step-by-step explanation:
The product of 2 numbers is simply one number multiplied by another
6.8 x 4.7 = 31.96
As a sanity check, just round the numbers off to a whole numbers and take a product of those two:
i.e 6.8 rounded off to the nearest whole number is 7 and 4.7 rounded off to the nearest whole number is 5.
7 x 5 = 35
If you look at the possible answers, only 31.96 is anywhere close to 35, hence you can be be more confident that your answer of 31.96 is correct.
Answer:
31.96 is your answer
Step-by-step explanation:
its just like a normal multiplication problem multiply 6.8 and 4.7 and you'll get your answer :))
For the given image and scale factor, which ordered pair is one of the pre-image vertices if the center of the pre-image is also the origin?
Answer:
Step-by-step explanation:its the first one 3 5ths ,1
i just took the assignment
Answer:
the answer A
Step-by-step explanation:
the first four terms of a sequence are shown below 8,5,2,-1
Answer:
an = 8-3(n-1)
an = 11 - 3n
Step-by-step explanation:
This is an arithmetic sequence which is defined by
an = a1 + d(n-1)
where a1 is the first term of the sequence and d is the common difference
a1 = 8
d = a2-a1
d = 5-8 = -3
an = 8 + -3(n-1)
an = 8-3(n-1)
We can simplify this by distributing the -3
an = 8 -3n +3
an = 11 - 3n
Mike wants to conduct a survey to find how much time the students of his school spent watching television. Which of the following is an appropriate statistical question for this survey?
Who watched television on weekends?
How many hours per week do you watch television?
Who watches television the most on Monday nights?
How many students watch television for an hour every day?
Answer:
How many hours per week do you watch television?
Step-by-step explanation:
In order to conduct a proper survey about a specific topic, it is necessary to be direct and clear. In the case of time spent by students watching TV, asking this question would be effective enought to collect necessary data so as to provide useful and good quality information, which will result in a sucessful survey.
Answer:
B is your answer :D
Step-by-step explanation:
How are conditional probability and independent events related?
Select the correct phrase or notation from each drop-down menu to complete the explanation.
The notation __A__ reads the probability of Event A given that Event B has occurred. If Events A and B are independent, then the probability of Event B occurring __B__ the probability of Event A occurring. Events A and B are independent if __C__
A.
1. P(B|A)
2.P(A|B)
3. P(A and B)
B.
1. affects
2. does not affect
C.
1. P(A|B) = P(A)
2. P(A|B) = P(B)
3. P(A|B) = P(A and B)
Answer:
1. P(A|B) - option 2
2. does not affect - option 2
3. P(A) - option 1
Step-by-step explanation:
By the definition, the notation P(A|B) reads the probability of event A given that event B has occured. So, for the first gap correct choice is 2 - P(A|B).
If events A and B are independent, then the probability of event B occuring does not affect the probability of event A occuring. So, for the second gap correct choice is 2 - does not affect.
Events A and B are independent, then
[tex]P(A\cap B)=P(A)\cdot P(B)[/tex]
Use formula for the conditional probability:
[tex]P(A|B)=\dfrac{P(A\cap B)}{P(B)}[/tex]
Since events A and B are independent, we get
[tex]P(A|B)=\dfrac{P(A)\cdot P(B)}{P(B)}=P(A)[/tex]
So, for the third gap correct answer is 1 - P(A)
For (A) option (2) is correct, for (B) option (2) is correct, and for (C) option (1) is correct.
What is probability?It is defined as the ratio of the number of favorable outcomes to the total number of outcomes, in other words, the probability is the number that shows the happening of the event.
From the basic definitions of the events of probability.
P(A|B) = The probability of Event A given that Event B has occurred
In the independent events, the probability of Event B occurring does not affect the probability of Event A occurring.
P(A|B) = P(A) if events A and B are independent.
Thus, for (A) option (2) is correct, for (B) option (2) is correct, and for (C) option (1) is correct.
Learn more about the probability here:
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find the equation of the perpendicular bisector of the line segment joining the points (3,8) and (-5,6).
Answer:
y = - 4x + 3
Step-by-step explanation:
The perpendicular bisector is positioned at the midpoint of AB at right angles.
We require to find the midpoint and slope m of AB
Calculate m using the slope formula
m = (y₂ - y₁ ) / (x₂ - x₁ )
with (x₁, y₁ ) = A(3, 8) and (x₂, y₂ ) = B(- 5, 6)
m = [tex]\frac{6-8}{-5-3}[/tex] = [tex]\frac{-2}{-8}[/tex] = [tex]\frac{1}{4}[/tex]
Given a line with slope m then the slope of a line perpendicular to it is
[tex]m_{perpendicular}[/tex] = - [tex]\frac{1}{m}[/tex] = - [tex]\frac{1}{\frac{1}{4} }[/tex] = - 4
mid point = [0.5(x₁ + x₂ ), 0.5(y₁ + y₂ ) ]
Using the coordinates of A and B, then
midpoint AB = [0.5(3 - 5), 0.5(8 + 6) ] = (- 1, 7 )
Equation of perpendicular in slope- intercept form
y = mx + c ( m is the slope and c the y- intercept )
with m = - 4
y = - 4x + c ← is the partial equation
To find c substitute (- 1, 7) into the partial equation
Using (- 1, 7), then
7 = 4 + c ⇒ c = 7 - 4 = 3
y = - 4x + 3 ← equation of perpendicular bisector
Answer:
he perpendicular bisector is positioned at the midpoint of AB at right angles.
We require to find the midpoint and slope m of AB
Calculate m using the slope formula
m = (y₂ - y₁ ) / (x₂ - x₁ )
with (x₁, y₁ ) = A(3, 8) and (x₂, y₂ ) = B(- 5, 6)
m = = =
Given a line with slope m then the slope of a line perpendicular to it is
= - = - = - 4
mid point = [0.5(x₁ + x₂ ), 0.5(y₁ + y₂ ) ]
Using the coordinates of A and B, then
midpoint AB = [0.5(3 - 5), 0.5(8 + 6) ] = (- 1, 7 )
Equation of perpendicular in slope- intercept form
y = mx + c ( m is the slope and c the y- intercept )
with m = - 4
y = - 4x + c ← is the partial equation
To find c substitute (- 1, 7) into the partial equation
Using (- 1, 7), then
7 = 4 + c ⇒ c = 7 - 4 = 3
y = - 4x + 3 ← equation of perpendicular bisector
Find a conversion factor between square centimeters and square meters. Write it in three forms.
Square centimeters = 1 square meter
Answer:
1 square meter = 10000 square centimeters.
Step-by-step explanation:
We know that 1 meter = 100 centimeters.
Then 1 square meter = ( 100 cm)(100 cm) = 10000 square centimeters.
Then:
1 square meter = 10000 square centimeters.
Suppose the times to cook meat on a grill are normally distributed with a mean of 23 minutes and a standard deviation of 1.9 minutes.
What is the difference in times between grilled meat that has a z-score of 2 and another meat that has a Z-score of -1?
• 2.85min
• 4.7min
• 5.7min
• 11.4min
That's a difference of three standard deviations or 3(1.9) = 5.7 minutes.
Answer: 5.7 min, third choice
20 students plays football and 16 students plays hockey.It is found that 10 students plays both game.Find the number of students playing at least one game
100 pencils cost 7.00 30 pencil cost
Answer:
2.10.
Step-by-step explanation:
100 costs 7.00
1 costs 7.00 / 100 = 0.07
30 costs 0.07 *30
= 2.10.
Answer:
Step-by-step explanation:
7.00 / 100 = .07
so that makes each pencil worth .07 cent
.07 * 30 = $2.10
so 30 pencils will cost $2.10
What is the ratio for the surface areas of the cones shown below, given that
they are similar and that the ratio of their radii and altitudes is 2:1?
SUBMIT
Answer:
The ratio for the surface areas is equal to 4
Step-by-step explanation:
step 1
Find the scale factor
we know that
If two figures are similar, then the ratio of its corresponding sides is proportional and this ratio is called the scale factor
Let
z -----> the scale factor
In this problem
The scale factor is equal to
[tex]z=\frac{2}{1}[/tex] ----> the ratio of its corresponding radii or its corresponding altitudes
step 2
Find the ratio for the surface areas of the cones
we know that
If two figures are similar, then the ratio of its surface areas is equal to the scale factor squared
Let
z -----> the scale factor
x ----> the surface area of the larger cone
y ----> the surface area of the smaller cone
[tex]z^{2} =\frac{x}{y}[/tex]
we have
[tex]z=\frac{2}{1}[/tex]
substitute
[tex](\frac{2}{1})^{2}=\frac{x}{y}[/tex]
[tex]4=\frac{x}{y}[/tex]
The ratio for the surface areas is equal to 4
That means-----> The surface area of the larger cone is 4 times the surface area of the smaller cone
Brayden, Howard, and Vincent are on the football team. During a game, Brayden gains 1 less than 5 times the average number of yards gained per play during the game. Howard runs for 1 more than 5 times the average number of yards gained per play during the game. Vincent runs for 5 more than 4 times the average number of yards gained per play during the game.
In this activity, you will write equations to describe this situation and determine whether the equations have one solution, no solution, or infinitely many solutions.
Write an equation to find the average number of yards gained per play if Howard and Vincent gained the same number of yards.
Answer: They are parallel so there is no solution.
Step-by-step explanation:
Brayden- y=5x-1 or y-5x= -1
Howard- y=5x+1 or y-5x= 1
Vincent- y=4x+5 or y-4x= 5
In summary, they are all parallel so there is no solution.
Answer:
5y - 1 = 5y + 1
(Braydon = Howard)
Jill bought a pound of strawberries for $4.00. What is the price, in dollars, per ounce of strawberries? (1lb = 16 oz)
Answer:
$0.25/lb
Step-by-step explanation:
Convert 1 lb to 16 oz mentally. Then the unit cost of the berries is
$4.00
------------ = $0.25/lb
16 oz
A system of linear equations has infinitely many solutions. Does that mean any ordered pair in the coordinate plane is a solution?
Answer:
Nope, not every ordered pair in the plane is a solution to a system of linear equations.
a coin is tossed 4 times which of the following represents the probability of the coin landing on heads all 4 times
Answer:
1/16
Step-by-step explanation:
1/2*1/2=1/4*1/2=1/8*1/2=1/16
Answer:1/16
Step-by-step explanation:
If ƒ (x ) = 2x 2 + 3, find ƒ (3).
Answer:
[tex]f(x) = 2 \times 2 + 3 \\ f(3) = 4 + 3 \\ 3f = 7 \\ f = \frac{7}{3} [/tex]
Hope it help youAnswer:
The answer is 15
Step-by-step explanation:
If ƒ (x ) = 2x 2 + 3, find ƒ (3).
2(3)^2 +3
6^2+3
= 15
Kates, Ratios, and proportions
A company is hosting a fundraising dinner and selling tickets to attend. The table below shows the total amount raised in relation to
the number of tickets sold.
Tickets Sold 2
Total Raised $36.00
3
$54.00
4
$72.00
5
$90.00
6
$108.00
What is the rate of change for the information in the table?
$9.00 per ticket
A.
B.
$27.00 per ticket
C.
$36.00 per ticket
D
$18.00 per ticket
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