Sequences & Series Questions and Answers
Algebra
Sequences & SeriesTrue or False?
f'(a)=lim:
h→0
f(a+h)-f(a)
h
f'(x)=lim f(x+h)-f(x)
h
h→0
gives the derivative at a single point x = a and
gives the derivative function.
Algebra
Sequences & SeriesIn a triangle, the measure of the first angle is three times the measure of the second angle. The measure of the third angle is 60° more than the measure of the second
angle. Use the fact that the sum of the measures of the three angles of a triangle is 180° to find the measure of each angle.
The measure of the first angle is.
BLECH
Algebra
Sequences & Series5 fluid oz. of a 2% acid solution was mixed with 11 fluid oz. of a 66%
acid solution. Find the concentration of the new mixture.
Only provide the numerical solution. Do not include the % symbol.
Algebra
Sequences & SeriesA supermarket is selling two types of candies, orange slices and strawberry leaves. The orange slices cost $1.27 per pound and the strawberry leaves cost $1.77 per
pound. How many pounds of each should be mixed to get a 8-pound mixture that sells for $11.16?
Algebra
Sequences & SeriesAdrian leaves his house and walks down the road at a rate of 3.8 miles
per hour. 0.75 hours later, his wife Mary leaves the same house and
begins walking down the same road at a rate of 4.2 miles per hour.
How long will it take for Mary to catch up to Adrian?
Only provide the numerical solution. Round to the nearest
thousandth. No units are necessary.
How far from the house will Mary catch up to Adrian?
Algebra
Sequences & SeriesSelect one variable to represent one quantity and express the second quantity in terms of the first.
a 14-foot piece of wood is cut into 2 pieces.
Algebra
Sequences & Serieswe assume that
ƒ(k) (x):
=
(k − 1)!
(1 − x) k
plz solve the question below.
=
ƒ(k+1)(x) = (-
− (k − 1)! (
(1 x)
(k − 1)!
(1 - x) k
1
(1-x)k
− (k − 1)! ((1 —
− (k − 1)! (5) (1 − x) (0)
(7)!
(8)
T) '
(4)
Algebra
Sequences & SeriesValue Rent-A-Car rents a luxury car at a daily rate of $39.22 plus 20 cents per mile. A business person is allotted $100 for car rental each day. How many miles can the
business person travel on the $100?
The business person can travel
miles.
Algebra
Sequences & Seriesve the system of equations by the addition method
(4x+y = 17
3x-y=4
ct the correct choice below and, if necessary, fill in the answer box to complete your choice.
The solution is
(Simplify your answer. Type an ordered pair.)
There are infinitely many solutions: {(x,y) 4x+y=17) or ((x,y) |3x-y=4)
There is no solution; {} or Ø.
Algebra
Sequences & SeriesA =
{9, 3, 11, 7} B = {3, 5, 7, 9, 11, 13} C = {3, 5, 9} D = {13,11}
Select all of the following that is false.
OB CA
OD C B
OD CA
AnD = 0
Algebra
Sequences & Seriesa. Rewrite the given equation 3x + 4y - 12=0 slope-intercept form.
b. Give the slope and y-intercept.
c. Use the slope and y-intercept to graph the linear function.
- 3
a. The slope-intercept form of the equation is y=
(Simplify your answer. Use integers or fractions for any numbers in the equation.)
and the y-intercept is
b. The slope of the equation of the line is
(Type integers or fractions.)
-x+3.
Algebra
Sequences & SeriesComplete each ordered pair so that it is a solution of the given linear equatio
x-3y=-9; (,5), (-9,)
The first ordered pair is (5).
Algebra
Sequences & SeriesLet f [0,2] → R be a continuous function, with ƒ(0) ≤ f(1) ≤ f(2). Show that there
exists xo [0, 2] such that
f(xo) =
ƒ(0) + ƒ(1) + ƒ(2)
3
Algebra
Sequences & SeriesUse the given constraints and optimal solution to state the value of each slack variable.
subject to
5x + 2y ≤ 1,715
46x + 31y ≤ 690
x ≥ 0, y 20
(x, y) = (15, 0)
optimal solution
The slack variables have values =
$1
and S₂ =
Algebra
Sequences & SeriesMaggie wants to build up the money her bank account. She would like to have $2,000 in
interest in her bank account after 19 years. If the simple interest rate is 2.4%, how much
money will she need to deposit to reach her goal?
Provide the numerical solution rounded to the nearest cent. You do not need to the $
symbol.
Algebra
Sequences & SeriesJosh is buying jeans. He finds a pair that is 42% off. If the sale price is
$55, determine the original price of the pair of jeans. Round to the
nearest cent and do not include the $ symbol.
Algebra
Sequences & SeriesOn the graph of f(x) = cos x and the interval [2x, 4x), for what value of a does f(x) achieve a maximum? Choose all
answers that apply.
Select all that apply.
02T
05#
Algebra
Sequences & SeriesJackie received $5,000 as a prize. She invested her money into a certificate of deposit
for 8 years. When she redeemed the certificate of deposit, she received $6,200. What
simple interest rate did she receive on her certificate of deposit?
Provide the numerical solution rounded to two decimal places for the percent. You do
not need to include the % symbol.
Algebra
Sequences & SeriesTo determine the average of a set of test scores, add all of the scores
and divide by the number of scores. Phil score 92, 77, 71, 63, 96, and
69.
Determine what score Phil would need to earn on his seventh test to
have an average of 80.
Only provide the numerical solution. No units are necessary.
Algebra
Sequences & SeriesSolve the system of equations by the substitution method.
[y=2x+1
4y - 6x=10
Select the correct choice below and, if necessary, fill in the answer box to complete your choice.
OA. The solution is
(Simplify your answer. Type an ordered pair.)
OB. There are infinitely many solutions; {(x,y) y = 2x + 1} or {(x,y)|4y - 6x=10}.
OC. There is no solution; {} or Ø.
Algebra
Sequences & SeriesFind the quotient using long division.
4x² - 18x+1
x-5
4x²-18x+1
X-5
=
(Simplify your answer.)
Algebra
Sequences & Serieswhat is the pattern between:
05-15-43-44-47-03
10-15-22-23-41-07
01-12-13-26-40-07
Algebra
Sequences & SeriesAttendance at a recent concert was 11% higher than last year's
concert. If the attendance last year was 23,572, determine the
attendance at the concert this year.
Only provide the numerical solution. Round to the nearest person. No
units are necessary.
Algebra
Sequences & SeriesFind the quotient using long division.
5x² + 12x +4
x + 2
5x²
+ 12x +4
x + 2
=(Simplify your answer.)
Algebra
Sequences & SeriesShawn borrows $12,000 from the bank to help pay for a new car. The loan is for 7 years
with a simple interest rate of 7.7%.
When Shawn settles the loan at the end of 7 years, how much money, in total, must he
pay? Round to the nearest cent (if necessary) and do not include the $ symbol.
Algebra
Sequences & Series2. Reshma's monthly income is 22%
more than Neelam's monthly income.
If Neelam's monthly income is Rs.
3500. What is the Reshma's monthly
income?
Algebra
Sequences & SeriesChoose the inequality which best describes the graph.
to b
OFS-4
OM-4
OAY 4
<64
-8 -7 -6
10
Algebra
Sequences & SeriesRound to 2 significant figures.
5,239
Step 1: Identify the place value we
need to check for rounding.
What is the place value for our
last significant figure?
B. the hundreds
D. the ones
A. the thousands
C. the tens
Algebra
Sequences & SeriesSolve each equation for y. Match the given equation with the correct equation that is
solved for y.
7x - 4y = 28
7x + 4y = 28
-7x - 4y = 28
-7x + 4y = 28
4x - 7y = 28
4x + 7y = 28
-4x - 7y = 28
-4x + 7y= 28
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Algebra
Sequences & SeriesEvaluate the expression if x = −2, y = 3, and z = -4. (If an answer is undefined, enter UNDEFINED
4z²y
4(x - Z)
Algebra
Sequences & SeriesHi, please only respond if you can answer
all parts so that I do not waste a question
and have to post it again, as many only get
one response. Thanks for the help!
Consider the graph given on the right and answer the questions below.
C
The shaded set of numbers shown on the x-axis can be expressed in interval notation as
(Type your answer in interval notation.)
This set represents the function's
▼
Algebra
Sequences & SeriesThe equation y = 25 can also be written as:
a)
x=
Ob) x =
c) y
y =
d)
Y
log, y
2
log₂y
5
log₂x
5
log5x
2
Algebra
Sequences & SeriesMatt borrows $15,000 from the bank to help pay for a new car. The loan is for 6 years
with a simple interest rate of 9.9%.
Determine the amount of simple interest that Matt will pay for the loan. Round to the
nearest cent (if necessary) and do not include the $ symbol.
Algebra
Sequences & SeriesSolve the equation for x.
-2(3x-9) + 2 = − 6x+20
Select the correct choice below and, if necessary, fill in the answer box to complete your choice.
O A. x=
(Type an integer or a fraction. Simplify your answer.)
B. The solution is all real numbers.
OC. There is no solution.
Algebra
Sequences & SeriesSimplify. Assume no division by zero. See Example 8. (Objective 4)
2x
3y²
4
Algebra
Sequences & SeriesFind the function f(x) that satisfies the following conditions:
f(-2) = f(1) = 0, f(x) < 0 when x < -2 and f(x) > 0 when x>-2
a) f(x) = (x + 2)(x − 1)²
b) f(x)=(x-2)(x + 1)²
c) f(x) = (x + 2)²(x-1)
d) f(x) = (x - 2)²(x + 1)
Algebra
Sequences & SeriesJulie needs to cut 4 pieces of yarn, each with the same length, and a piece of yarn 7.75 inches long. Let x represent
the length of each of the equal pieces of yarn that Julle decides to cut. What is the equation that can be used to
determine the total length of all of the yarn that she ends up cutting, y? Is the graph of the equation continuous or
discrete?
Oy-7.75x+4; discrete
Oy-7.75x+4; continuous
y4x+7.75; discrete
y-4x+7.75; continuous