Answer:
The answer is "\(=24x+ \frac{28800}{x}+20\)"
Step-by-step explanation:
The perimeter of the fence \(=2x+y\)
cost of fence\(=12(2x+y)\)
cost of corner ports\(= 4 \times 5=20\)
cost of pen\(= 24x+12y+80.............(1)\)
area of pen\(=2400\)
\(xy=2400\\\\y=\frac{2400}{x}\)
cost c(x)\(=24x+ \frac{12 \times 2400}{x}+20\)
\(=24x+ \frac{28800}{x}+20\)
(i) Write the zeroes of the polynomial by using above graph.
(ii)Form a quadratic polynomial for above graph.
(iii)If a,1/a are the zeroes of polynomial 2x² -x +8k, then find the value of k.
please answer
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There is no real Value of k that will satisfy the equation 2x² - x + 8k = 0 if a and 1/a are the roots of the polynomial.
(i) Zeroes of the polynomial:
In the graph, we have two points where the curve intersects the x-axis: one is at (-1,0), and the other is at (2,0).The corresponding values of x are -1 and 2, and they are the zeros of the polynomial. Therefore, the zeros of the polynomial are -1 and 2.(ii) Forming the quadratic polynomial:
From the graph, we can observe that the curve intersects the y-axis at the point (0,5), implying that the constant term of the polynomial is 5.
We can use the formula to find the quadratic polynomial if we have two zeros and one constant term. Thus, the quadratic polynomial is given by:(x + 1)(x - 2) = x² - x - 2x + 2 = x² - 3x + 2. Therefore, the quadratic polynomial is x² - 3x + 2.(iii) Value of k if a, 1/a are the zeroes of the polynomial 2x² - x + 8k:
We know that a and 1/a are the zeroes of the polynomial 2x² - x + 8k. Therefore, we can find the sum and product of the roots and use them to determine the value of k.
The sum of the roots is a + 1/a, and their product is a(1/a) = 1. Using the sum and product of the roots, we can write: a + 1/a = 1/2 (1/2 is the coefficient of x)Substituting a with 1/a in the above equation, we get: 1/a + a = 1/2Multiplying both sides of the equation by 2a, we get: 2 + 2a² = a
Simplifying the equation, we get: 2a² - a + 2 = 0Multiplying both sides by 2,
we get: 4a² - 2a + 4 = 0Dividing both sides by 2, we get: 2a² - a + 2 = 0
Using the quadratic formula, we get: a = [1 ± √(1 - 4(2)(2))]/(2(2))
Simplifying, we get: a = [1 ± √(-31)]/4Since the discriminant of the quadratic formula is negative, the roots are imaginary. Therefore, there is no real value of k that will satisfy the equation 2x² - x + 8k = 0 if a and 1/a are the roots of the polynomial.
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Question 10
1 pts
16x
Find the missing value of x.
30°
Answer:
1.875
Step-by-step explanation:
mark brainlist pls
2. Assume someone had $100,000 in their retirement account on 3/3/1/2013. The five year rateof 3.98% means that each year their initial balance will grow by 3.98%. To find out howmuch money they will have in their account five years later we can fill in the following table:Five Year Rate 3.98%DateInitial PrincipalInterestEnding Principal3/31/20133/31/20143/31/20153/31/20163/31/20173/31/2018
ANSWER
Date: 3/31/2013
• Initial principal: ,$100,000
,• Interest: ,$3,980
,• Ending principal: ,$103,980
Date: 3/31/2014
• Initial principal: ,$103,980
,• Interest: ,$4,138.40
,• Ending principal: ,$108,118.40
Date: 3/31/2015
• Initial principal: ,$108,118.40
,• Interest: ,$4,303.11
,• Ending principal: ,$112,421.51
Date: 3/31/2016
• Initial principal: ,$112,421.51
,• Interest: ,$4,474.38
,• Ending principal: ,$116,895.89
Date: 3/31/2017
• Initial principal: ,$116,895.89
,• Interest: ,$4,652.46
,• Ending principal: ,$121,548.35
Date: 3/31/2018
• Initial principal: ,$121,548.35
EXPLANATION
The initial balance is $100,000 and it is said that this balance grows by 3.98% each year. For the first year 3/31/2013 the values are:
• Initial principal: ,$100,000
,• Interest: here we have to find 3.98% of the initial principal:
\(100,000\times\frac{3.98}{100}=100,000\times0.0398=3,980\)so the interest is $3,980
• Ending principal: is the initial amount plus the interest of the first year:
\(100,000+3,980=103,980\)The ending principal for the first year is $103,980.
Now we have to do the same for the next 4 years. The initial principal will be the ending principal of the previous year. The interest is the 3.98% of the initial principal of the same year and the ending principal is the initial principal plus the interest. So for the second year 3/31/2014:
• Initial principal: ending principal of 2013 = ,$103,980
,• Interest:
\(103,980\times\frac{3.98}{100}\approx4,138.40\)the interest is $4,138.40
• Ending principal:
\(103,980+4,138.4=108,118.4\)the ending principal is $108,118.40
Next year, 2015:
• Initial principal: ending principal of 2014 = ,$108,118.40
,• Interest: 3.98% of initial principal:
\(108,118.40\cdot3.98\text{ \%}=4,303.11\)• Ending principal:
\(108,118.4+4,303.11=112,421.51\)Year 2016:
• Initial principal: ending principal of 2015 = ,$112,421.51
,• Interest:
\(112,421.51\times3.98\text{ \%}=4,474.38\)• Ending principal:
\(112,421.51+4,474.38=116,895.89\)Year 2017:
• Initial principal: ending principal of 2016 = ,$116,895.89
,• Interest:
\(116,895.89\times3.38\text{ \%}=4,652.46\)• Ending principal:
\(116,895.89+4,562.46=121,548.35\)Finally, the initial principal of 2018 is the ending principal of 2017: $121,548.35
If 16 cups equals 1 gallon, how many cups are 1 and 1 quarter gallon?
Answer: the answer would be that there is 20 cups in a gallon to find measurements like that ok so 4×4=16 so there is 4 cups in a quarter so it says 1 and a quarter of a gallon or 1 and 1/4 so 16 × 0.25=4 then now you can see that the calculation is correct so then 5×4=20 so 20cups is your answer
hope i helped
Step-by-step explanation:
Find the x - intercept and
y – intercept of the graph of the
equation 4x + 7y = 6
Step-by-step explanation:
x- intercept is the x coordinate when y is 0
4x + 7(0) = 6
4x = 6
x = 1.5
(1.5, 0)
y- intercept is when x is 0
4(0) + 7y = 6
7y = 6
y = 6/7
( 0, 6/7)
I hope this helps!!!
pls help
heather had some candy to give to her five children. she first took eight pieces for herself and then evenly divided the rest amount her children. each child received four pieces. with how many pieces did she start?
Answer: She started with 28 pieces of candy.
Step-by-step explanation: In the beginning of the question it says that heather took 8 pieces. Then she divided the rest evenly amongst her 5 kids. Each received 4, so that make the equation 8+(5x4) which gives us 8+(20). Or 8+20 which is 28.
Answer:
She started with 28 candies.
Explanation:
Let the total amount of candies be c
Build equation:
heather took out 8 candies for herself→ remaining: c - 8
then divided the remaining candies to her five children→ each gets: (c - 8)/5
Here given each gets 4 candies
So,
(c - 8)/5 = 4
c - 8 = 5(4)
c - 8 = 20
c = 20 + 8
c = 28
i don't smile for the camera, (finish the rest correctly u get brainliest)
Step-by-step explanation:
only smile for youuuuuuuu
Answer:
I only smile for the money, lol
Step-by-step explanation:
one value of x for which f(x) = -2
100 POINTS PLS SOLVE !! ::
k-4 /9 =3
8+b /-4 = -5
Answer:
k = 31/9 b = 12Step-by-step explanation:
k - 4 = 3
9
k/9 = 3(9) + 4
k = 31/9
----------------------------
8 + b = -5
-4
8 + b = -5 (-4)
8 + b = 20
b = 20 - 8
b = 12
k = 31/9
b = 12
proofing my answer is correct
k - 4 = 3
9
k/9 = 3(9) + 4
k = 31/9
----------------------------
8 + b = -5
-4
8 + b = -5 (-4)
8 + b = 20
b = 20 - 8
b = 12
Write the sentence as an equation.
106 more than the quantity 68 times y is the same as 36 decreased by y
Answer: 68y+106=36-y
A function is described by the following ordered pairs: (7, 4.5) (–4, 7.2) (–7.2, –4) (5.2, 3) Which set of ordered pairs represents the inverse of the function? (7, –4), (–7.2, –4), (3, 5.2), (4.5, –4) (7, –4), (–7.2, 5.2), (4.5, 7.2), (–4, 3) (4.5, 7), (7.2, –4), (–4, –7.2), (3, 5.2) (7, 4.5), (–4, 7.2), (–7.2, –4), (5.2, 3)
Answer: (4,5,7) ,(7.2,-4),(-4,-7.2),(3,5.2)
Step-by-step explanation:
Answer:
it's C
Step-by-step explanation:
2. A New Jersey-based statistics professor has collected data over several years concerning the duration of her morning commute to her university. A brief inspection of the data reveals that her commuting times are (roughly) normally distributed with a mean of 75 minutes and standard deviation of 15 minutes. If she leaves her home at 9:00 a.m. to attend a faculty meeting commencing at 10:30 a.m., what is the probability she will be late for the meeting?
Find the volume of this square
based pyramid.
8 cm
6 cm
[? ]cm3
Answer:
I think the answer would be 96cm³
Step-by-step explanation:
have a great rest of ur dayy
Heidi has $4.55. She needs to buy bolts at the hardware store. Bolts cost $0.13 each.
What division equation and related multiplication equation could Heidi use to find how many bolts she can buy?
Answer
35
Step-by-step explanation:
4.55/.13=35. Also, Heidi could do 35x13. I hope this helps!
How do you do this question?
Answer:
∑ₙ₌₀°° 8 (-1)ⁿ x⁴ⁿ⁺¹ / (9ⁿ (2n)!)
Step-by-step explanation:
Start with the Maclaurin series for cos x.
cos x = ∑ₙ₌₀°° (-1)ⁿ x²ⁿ / (2n)!
Substitute ⅓ x².
cos (⅓ x²) = ∑ₙ₌₀°° (-1)ⁿ (⅓ x²)²ⁿ / (2n)!
cos (⅓ x²) = ∑ₙ₌₀°° (-1)ⁿ (⅓)²ⁿ x⁴ⁿ / (2n)!
cos (⅓ x²) = ∑ₙ₌₀°° (-1)ⁿ x⁴ⁿ / (9ⁿ (2n)!)
Multiply by 8x.
8x cos (⅓ x²) = ∑ₙ₌₀°° 8x (-1)ⁿ x⁴ⁿ / (9ⁿ (2n)!)
8x cos (⅓ x²) = ∑ₙ₌₀°° 8 (-1)ⁿ x⁴ⁿ⁺¹ / (9ⁿ (2n)!)
finding the slope graphically
if you are given two points (x1,y1) and (x2,y2), you can calculate the slope using the following formula
\(m=\frac{y_2-y_1}{x_2-x_1}\)we need to identify two points to use the formula above
we can see that, when x = 0 , then y = 5
and when x = -7 then y = 0
so the points are (0,5) and (-7,0)
we can use those points to replace them in the formula
\(m=\frac{5-0}{0-(-7)}=\frac{5}{7}\)Thus, the slope of the line is 5/7
10
Which subtraction expression does the number line model show?
++++
-15 -13
+
-11 -9 -7
-7
+++
-5
-5
-3
+ +
-1
Answer:
-15-13=
-28
-11-9-7
-27
Which of the following is a true statement of the figure?
An image of a triangle ABC. The angle bisector of angle B is ray BD. Point D lies on side AC.
Question 1 options:
A
D
D
C
=
D
C
C
B
A
C
A
B
=
D
B
D
C
A
D
D
C
=
A
B
C
B
B
C
B
A
=
D
C
C
B
Angle ∠EBD is congruent to angle ∠DBA. Option D is the true statement.
What is an angle bisector?An angle bisector is the line segment that bisects the angle into two equal halves.
Orientation of the one line with respect to the horizontal or other respective line is known as a measure of orientation and this measure is known as the angle.
Here,
Ray BE is a bisector of angle CBA,
∠CBE = ∠EBA = 60°
∠EBD = ∠EBA - ∠DBA
∠EBD = 60 - 30 = 30
So,
∠EBD = ∠DBA [DB becomes angle bisector of angle EBA]
Thus, ∠EBD is congruent with ∠DBA is the only correct answer among the option.
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Full Question:
Although part of your question is missing, you might be referring to this full question:
Which of the following statements is true if ray BE is a bisector of angle CBA?
A. Ray BD is a bisector of angle CBA.
B. ∠EBD is congruent to ∠CBE.
C. Ray BE is a bisector of angle ABE.
D. ∠EBD is congruent to ∠DBA.
Does the expression x^3-1 divided by x^2 -1 simplify to x?
No, the expression (x^3 - 1) / (x^2 - 1) does not simplify to x.
To simplify the expression, let's first factorize both the numerator and denominator.
The numerator can be factorized using the difference of cubes formula: a^3 - b^3 = (a - b)(a^2 + ab + b^2). So, we have (x^3 - 1) = (x - 1)(x^2 + x + 1).
The denominator is a difference of squares: a^2 - b^2 = (a - b)(a + b). Therefore, (x^2 - 1) = (x - 1)(x + 1).
Now, we can simplify the expression by canceling out the common factors in the numerator and denominator:
[(x - 1)(x^2 + x + 1)] / [(x - 1)(x + 1)]
The (x - 1) terms cancel out, leaving us with:
x^2 + x + 1 / (x + 1)
So, the simplified form of the expression is (x^2 + x + 1) / (x + 1), which is not equal to x.
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PLEASE ANSWER ASAP!!Find a rational function that might have the given graph. (More than one answer might be possible.)
Answer:
The rational function that might have the given graph is \(y = - \frac{x}{(x+1)\cdot (x-1) }\).
Step-by-step explanation:
This graph shows a rational function whose numerator is a first order polynomial and denominator is a second order, due to the presence of vertical asymptotes at \(x = -1\) and \(x = 1\). The lead coefficient of the numerator must be 1, since horizontal asymptote must be \(y = 0\) and intercept must be \(0\), since \(y(0) = 0\).
Then, we conclude that a rational function that might have the graph is:
\(y = - \frac{x}{(x+1)\cdot (x-1) }\) (1)
We present the proof that given function is appropriate.
28=-6x-12+2x need help solving for x
Answer:
Step-by-step explanation:
28=-6x-12+2x
28+12=-6x-12+12+2x
40=-4x
x=-10
Answer:
x = -10
Step-by-step explanation:
\(28 = - 6x - 12 + 2x\)
Collect like-terms (also, when moving the terms to the other side, make sure to change their sign into the opposite of the previous one):
\(6x - 2x = - 12 - 28\)
\(4x = - 40\)
Divide both sides of the equation by 4 to make x the subject:
\(x = - 10\)
what decimal is equivalent to 41 over 100 (pls keep it simple i am only in 5th grade )
Answer: 0.41
Step-by-step explanation:
To find the decimal point of a fraction, divide the numerator (the top half of the fraction) by the denominator (the bottom half of the fraction).
41 over 100 as a decimal point would be 41 divided by 100
Which produces the equivalent decimal, 0.41
P.S this is also how you find the percent of a number. To get the percent, move the decimal point 2 digits over (0.41 to 41.) and then add the percentage sign to the end of the number (41%)
0.41 = 41%
so 41 over 100 is 0.41, and 41 is also 41% of 100 (per cent means per 100)
Best of luck in 5th grade :)
15. Many people swimming in a pool experience pain in their ears if they dive to the
bottom. Why is this?
A. Pressure increases as the depth of the water column above them increases.
B. The area of the pool is wider where it's deeper.
C. Pressure decreases as the depth of the water column above them increases.
D. The vapor pressure at the surface is removed.
Answer:
The answer is Ahope this helps
Four students were discussing how to find the unit rate for a proportional relationship. Which method is valid? “Look at the graph of the relationship. Find the y-value of the point that corresponds to x = 1. That value is the unit rate.” “Look at the graph of the relationship. Count the number of units up and the number of units to the right one must move to arrive at the next point on the graph. Write these two numbers as a fraction.” “Look at the graph of the relationship. Find the x-value of the point that corresponds to y = 2. That value is the unit rate.” “Look at the graph of the relationship. Find two points which have y-values that are one unit apart. The unit rate is the difference in the corresponding x-values.” PLS HURRY
Answer:
(A) " Look at the graph of the relationship. Find the y-value of the point that corresponds to x = 1 . That value is the unit rate. "
Step-by-step explanation:
-5p = -40 solve for t
Answer:
p = 8
Step-by-step explanation:
Divide -5 to both sides
-5p = -40
5p = 40
p = 8
So p = 8
Given f(x)=4x^2 - 1 and g (x) = 2x- 1 , find each function
1. ( f+g )( x )
2. ( fg ) ( x )
3. ( f^n ) ( x )
The values of the composite functions are
(1) (f + g)(x) = 4x² + 2x - 2
(2) (fg)(x) = 8x³ - 4x² - 2x + 1
(3) (fⁿ)(x) = (4x² - 1)ⁿ
How to evaluate the composite functionsFrom the question, we have the following functions that can be used in our computation:
f(x) = 4x² - 1
g(x) = 2x - 1
Using the above as a guide, we have the following:
(f + g)(x) = f(x) + g(x)
(f + g)(x) = 4x² - 1 + 2x - 1
Evaluate the like terms
(f + g)(x) = 4x² + 2x - 2
(fg)(x) = f(x) * g(x)
(fg)(x) = (4x² - 1) * (2x - 1)
Evaluate the products
(fg)(x) = 8x³ - 4x² - 2x + 1
(fⁿ)(x) = (f(x))ⁿ
So, we have
(fⁿ)(x) = (4x² - 1)ⁿ
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if f(x)=4x-x^2 find f(x+h)-f(x+h)/2h
Answer:
0
Step-by-step explanation:
same numerator for that it is zero
Answer: A
Step-by-step explanation:
Albert is traveling 40 mph in his car. After 3 hours, how far will he have traveled?
Answer:
120 miles
Step-by-step explanation:
Albert travels 40 miles for each hour he drives (units = mph = miles per hour)
If he drives 3 hours at 40 miles per hour...
3 hours x 40 miles / hour = 120 miles
austin is driving to san francisco, suppose that the distance to his destnation in miles is a linear function of total driving time
40 miles will he have after 85 minutes of driving .
Given :
austin is driving to san francisco, suppose that the distance to his destination in miles is a linear function of total driving time. has 67 miles to his destination after 49 minutes of driving . He has 47.5 miles to his destination after 75 minutes of driving .
slope = y2 - y1 / x2 - x1
m = 47.5 - 67 / 75 - 49
= -19.5 / 26
= -3/4
= -0.75
Use the point slope y - y1 = m(x - x1)
y - 67 = -.75 ( x - 49 )
y - 67 = -.75x + 36.75
y = -.75x + 36.75 + 67
y = -.75x + 103.75
x = 85
y = -.75(85) + 103.75
y = -63.75 + 103.75
y = 40 miles
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Full question :
austin is driving to san francisco, suppose that the distance to his destnation in miles is a linear function of total driving time has 67 miles to his destination after 49 minutes of driving . He has 47.5 miles to his destination after 75 minutes of driving . How many miles will he have after 85 minutes of driving ?
Which of the following are factor pairs for 54?select all that apply.
Answer:
The Pair Factors of 54 are (1, 54), (2, 27), (3, 18), and (6, 9) and its Prime Factors are 1, 2, 3, 6, 9, 18, 27, 54.
Step-by-step explanation:
hope this helped:)
brainliest for the brains........................
The Pair Factors of 54 are (1, 54), (2, 27), (3, 18), and (6, 9) and its Prime Factors are 1, 2, 3, 6, 9, 18, 27, 54.
Here, we have,
The factors of 54 are the numbers, that can divide 54 completely or evenly. When a pair of factors are multiplied together to produce the 54, then they are said to be pair factors. The factors divide the number completely. Hence, these factors cannot be a fraction.
Factors of 54: 1,2,3,6,9,18,27 and 54
Factor pairs of the number 54 are the whole numbers which are not a fraction or decimal number.
To find the factors of a number, 54, we will use the factorization method.
To find factors of 54, we have to divide 54 by all natural numbers from 1 to 54.
54 ÷ 1 = 54
54 ÷ 2 = 27
54 ÷ 3 = 18
54 ÷ 6 = 9
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