Keonn'a

This page lists questions and answers that were posted by visitors named Keonn'a.

Questions

The following questions were asked by visitors named Keonn'a.

Robert invested $10000 and earned a total of $550 interest. He invested part of the $10000 in an account paying 5% and rest in an account paying 6%. How much did he invest in each account.

The height of an launched from the ground after t seconds is given by h(t)=-16t^2+32t. How long for the object to obtain a height of 32ft. Hit the ground?

A computer screen measures 14 in. by 11 inches. Find the length of the diagonal.

d=kt^2 solve for t

v=1/3*3.14r^2h for r

A ball is projected upward from the ground. Its distance in feet from the ground in t seconds is given by s(t) = -16t^(2)+128t At what will the ball be at 213ft from the ground?

A projectile is thrown upward so that it's distance (in feet) above ground after t seconds is given by h(t)=-10t^2+440t. What is its maximum height?

The perimeter of a rectangle is 192 feet. The length of the rectangle is twice the width. Find the length and width of the rectangle.

While on a tour in Greece, Tatyanna saw that temperature was 5∘ celsius. Solve for F∘ in the formula. C= 5/9 (F-32)

A chicken farm ideally produces 300,000 eggs per day, but this total can vary by as much as 12,500 eggs per day. What is the maximum and minimum expected production at the farm?

Can any body help me solve this inequality. How to write the solution on a numberline. |2x+2|>14

A phone company has a monthly data plan where a customer pays flat monthly fee of $30 and then a certain amount of money per gigabyte (GB) of data used on the phone. If a customer uses 3 GB, the monthly cost will be $42. If the customer uses 8 GB, the mon...

Find an equation of a line parallel to the given line and contains the given point. Write the equation in slope-intercept form. a. line 2x+3y=2 , point (0,0) b. line y+4=0, Point (-5,3)

Find an equation of a line perpendicular to the given line and contains the given point. Write the equation in slope-intercept form. a. line 3x+y=5, point (-1,2) b. line y=3x+1, point (6,1)

A total of 900 tickets were sold for a game for a total of $1,775.00. If adult tickets sold for $2.50 and children's tickets sold for $1.50, how many of each kind of tickets were sold?

Paul mixes nuts worth $1.20 per pound with oats worth $1.70 per pound to get 40 pounds of trail mix worth $1.35 per pound. How many pounds of nuts and how many pounds of oats did he use?

Factor completely using difference of squares. x^2-12x+36-64y^2

Solve. 10x^2+5x=-5

16y^3+48y^2=-36y I need help setting up the problem.

For the function f(x)=x^2−7x+5 find x when f(x)=−5 x=

The area of a rectangular carpet is 12 square feet. The length is four feet more than the width. Find the length and the width of the carpet.

Complex Fraction. Simplify. x-5x/x+6/1/x-6+1/x-6

Simplify. Complex Fractions. b-2b/b+3/1/b+3+1/b-3= LCM: (b+3)(b-3)

Rationalize the denominator. frac{4}{\sqrt[3]{100x}}

Factor completely (x-2/3)^2-16(x-2/3)+63

Factor completely. (m+n)^3-27 a=m+n b=3 (m+n-3)[(m+n)^2+3(m+n)+3^2] m^3 +3m^2n +3mn^2 +n^3-9 Is this right?

Find the equation of the circle on the y-axis and has y-intercept at 1 and 7.

The Empirical Rule: The weight,in the grams, of the pair of kidneys in adult males the ages of 40 and 49 has a bell-shaped distribution with a mean of 325 grams and a standard deviation of 30 grams. A) About 95% of kidney pairs will be between what weight...

In December 2010, the average price of regular unleaded gasoline excluding taxes in the United States was $3.06 per gallon, according to the Energy Information Administration. Assume that the standard deviation price per gallon is $0.06 per gallon to answ...

Find the range population of Ethan and the population standard deviation Ethan: 9, 24, 8, 9, 5, 8, 9, 10, 8, 10

Which Professor? Suppose Professor Alpha and Professor Omega each teach Introductory Biology. You need to Decide which professor to take the class from and have just completed your introductory statistics course. Records obtained from the past students in...

15. Each of the following temperature ranges is in degrees Fahrenheit. Use the formula F=95 C+32 to find the corresponding temperature range in degrees Celsius (using interval notation and assume inclusion). 16.The fuel efficiency (mpg rating) for cars ha...

Amtrak's annual passenger revenue for the years 1985-1995 is modeled approximately by the formula R=-60|x-11|+962 where R is the annual revenue in millions of dollars and x is the number of years after 1980. In what year was the passenger revenue $722 mil...

Each of the following temperature ranges is in degrees Fahrenheit. Use the formulaF=9/5C+32 to find the corresponding temperature range in degrees Celsius (using interval notation and assume inclusion). a.23∘ to 50 ∘ b.68∘ to 86∘ c. -4∘ to 14∘ d. 104∘ to...

Let f(x)=4x+4 and g(x)=x^2+x-1.Evaluate the following. c. g(-2)=-2^2-2-1=-4-3=-7 f. g(a+1)=a^2+4a Is c right? and f I got the wrong answer.

I know where to even start these 3 problems The given is this:Let f(x)=x^2+3 and g(x)=4x+2, evaluate the following. c. 2*f(x)-g(x) = d.f(g(4)) = e.g(f(4)) =

Solve for a if the line through the two given points has the given slope. (4,a) and (-2,-2a), m=-1

Find the slope of any line perpendicular to the line through (3,2) and (-3,4).

Find the slope of any line for perpendicular to the line through (-4,-5) and (6,-1).

Find the slope of any line for perpendicular to the line through (-4,-5) and (6,-1).

The equation -5x-3y=2 is a linear equation in standard form. From this equation, answer the following:a. Find the y and x-intercepts b. Write this equation in slope-intercept form.

a . a. Slope: X+1 Incorrect Preview x x-intercept: ( ( 0 Correct , 0 ) ,0) y y-intercept: ( 0 , (0, 1 Incorrect ) ) b . b. Slope: -2x-2 Incorrect x x-intercept: ( ( -2 Correct , 0 ) ,0) y y-intercept: ( 0 , (0, -2 Incorrect ) ) c . c. Slope: -2x-2 Incorre...

what is 15 plus 1/3? what is 20 plus 1/3 what is 25 plus 1/3?

The following problem refers to an arithmetic sequence. If a_5=9 and a_14=18. Find the term a_1, the common difference and then find a_24.

the following problem refers to a geometric sequence. If a_1=5 and r=3, find a_n. a_n=a_1 *r^n-1

Expand and simplify the following: 4 ∑ i=1(i+3/i+4) (1+3/1+4)+(2+3/2+4)+(3+3/3+4)+(4+3/4+4) 4/5+5/6+6/7+7/8 I am stuck here please help me.

4 ∑ i=1(x−1i)= (x-1(1) +(x-1(2)+(x-1(3)+(x-1(4) I am struck I need some help. Did I expand the problem right?

The following problem refers to an arithmetic sequence. If the seventh term is 9 and the fourteenth term is 16, find the term a1, the common difference d, and then find a27 and S27

The following problem refers to an arithmetic sequence. If the seventh term is 9 and the fourteenth term is 16, find the term a1, the common difference d, and then find a27 and S27 i am struck please help me....

The following problem refers to a geometric sequence. If a_1=-2 and r=-1. Find a_20. a_n=a_1*r^(n-1) a_20=-2*-1^(20-1) I am stuck now please help me.

The following problem refers to a geometric sequence: If a_1=-2 and r=-1.Find s_28. This the formula was given by my instructor: S_n=a_1(1-r^n)/1-r =-2(1-(-1)^28)/1-(-1) =-2*2/2 =-4/2 =-2 where did I go wrong? Can You help me correct it please. Help me pl...

the following problem refers to a geometric sequence: Find S_10 for -1, -1/3, -1/9 r=-1/3/-1=1/3 a_1=-1 a_2=-1/3 a_n=a_1*r^n-1 a_n=-1*1/3^n-1 s_n= Help me.

find the sum of the infinite geometric series 1/3+1/9+1/27 sum=a_1/1-r

find the sum of the infinite geometric series 4+1+1/4+...

Find the sum of the infinite geometric series. 4+1+1/4+.... Sum=a_1/1-r 4/1-4=? r=a_1/a_2 r=4/1=4 a_1=4 I am stuck?Please help me.

find the median for the set of numbers. 175,425,625,175 list in ascending order: 175, 425,625 please help me.

find the range for the set of numbers: 13950,11250,14600,14300,14600,12200,11150,11300

The following problem refers to an arithmetic sequence. If a_1=4 and d=1 Find a_n and a_35.

The following problem refers to an arithmetic sequence. if a_8=9 and a_16=17, Find the term a_1, the common difference d, and then find a_30. a_n=a_1+(n-1)*d

How many two-person committees can be selected from a set of 8 people. 8nCr2=28 I need a reason why it is 28 when you input it into the calculator

How many different hands of 4 cards can be selected from a standard 52 card deck?

A baseball coach has a team of 22 players .In how many ways can be select a lineup of 9 players to start the game. ( order matters)

Two six-sided dice are rolled at the same time and the numbers showing are observed. Find the following. a. P(sum=2) b. P(sum=3) c. P(sum is an even number) d. P (the two dice show different numbers)

Two six-sided dice are rolled at the same time and the numbers showing are observed. Find the following. a. (P=sum of 8) 2 dice: (3,5) (5,3), (2,6), (6,2) c. P(sum is an odd number) 2 dice (1,5) (3,3) (5,1) I am lost here please help me with the further s...

Two six-sided dice are rolled at the same time and the numbers showing are observed. Find the following. a. P(sum=6) (1,6), (6,1) 1/36+1/36=2/36 b. P(sum=3) =1/36 c. P(sum is an odd number) 30/36 d. P(the two dice show same numbers) ? Can you check my ans...

Suppose A and B are events with P(A)=1/6, P(B)=5/6 and P(A and B)=1/12. Find each of the following a. P(AorB)= Formula: P(A)+P(B)-P(A&B) 1/6+5/6-1/12=11/12 b. P(not A) 1-1/6=5/6 c.P(not B)= 1-1/12=11/12 I am lost here can please correct any mistakes I did...

You select one card from a deck of 52 cards. What is the probability that it is b.) an eight or a spade? c.) a face card?5/26 d.) a face card or a spade? I am lost please help me I do not know where to started. never saw or play a card in my life. show me...

Suppose A and B are events with P (A)=0.25, P(A or B)=0.5, and P (A and B )=0.07. Find each of the following. a. P(B)=0.07/0.25=.28 b. P (not B)= Please help me I need the steps to solve the question

you selected one card from a deck of 52.what is the probability that is a face card; 12/52 face card or a heart 15/52

A box contains 7 pieces of candy: 1 green, 1 blue, and 5 red. You select one piece at random. Find the following probabilities. a.) P ( P(green or red ) = b.) P ( P(green and red ) c.) P ( P(green or blue ) = d.) P ( P(not(green or blue) ) =

Two six-sided dice are rolled at the same time and the numbers showing are observed. Find the following. a. P(sum=8) (5,2) (2,5) 2/36 Please help me with the steps

You draw a marble from a jar containing 5 red marbles, 5 green marbles, and 6 blue marbles. Find the probability of drawing a green given that you did not draw a red. P(green | not red)

Imagine the following scenario to solve the probability problem. Suppose A and B are independent events with P(A)=1/5 and P(B)=1/6 . Find each of the following. a.) P(A and B)=1/30 b.) P(A or B)= c.) P(not A)= d.) P(not(A and B))= I am confused...Please h...

A box contains seven candies, four of which are green, and three of which are blue. You select one piece at random, then without replacing the first one, you select another. If P(BG) is the probability of selecting a blue first and a green second, find th...

A box contains twelve candies, five reds, four greens, and three blues. You select one piece at random, then replace it, then you select another. If P(BG) is the probability of selecting a blue first and a green second, find the following probabilities. a...

A coin is tossed 8 times. The probability of getting a head on any one toss is 0.5. To the nearest thousandth, find the probability of getting 4 heads.

A bag contains 5 blue candies and 6 green candies. You randomly pick a piece of candy from the bag, observe the color, then put it back in the bag. You repeat this process 5 times. Find the following probabilities (rounded to the nearest thousandths): a.)...

You draw a card from a deck of 52 cards twice, each time replacing the card. Find the following probabilities (rounded to the nearest thousandths) of observing: a.) exactly 1 black card. P(1 black card)= b.) exactly 1 club. P(1 club)= c.) exactly 1 two. P...

A coin is tossed 8 times. The probability of getting a head on any one toss is 0.5. To the nearest thousandth, find the probability of getting 4 heads. P(4 heads)=we want 4 of 8 heads 8 nCr 4 (1/2)^4(1-1/2)^8-4 70(1/16)*(1/2)^4 I am lost from here

help me please I do understand I got the wrong answer: Solve the following system of linear equations by graphing 4x-2y=8 and x-y=0 1. 4x-2y=8 -2y/-2=4x/-2+8/-2 y=-2x/1-4 (0,-4) 2. x-y=0 -y/-1=x/-1+0/-1 y=1/-1+0 (0,0)

solve the system of linear equations by graphing y=3/5x y=-1/5x-4 I need helping it.

this a system of equations A merchant decides to mix peanuts worth 5.25 per pound and trail mix worth 2.75 a pound to make a 10 pound mixture worth 4.75 per pound. how many pounds of each should his mixture contain? please help me.

one number is 3 more than 3 times another. The sum of the numbers is 11. Find the two numbers.

The sum of three numbers is 16. Two times the smallest is 2 less than the largest, while the sum of the largest and smallest is 11. Use a linear system in three variables to find the three numbers.

It takes a boat 2 hours to travel 26 miles downstream and 4 hours to travel 28 miles upstream.

an airplane flying with the wind can cover 660 miles in 2 hours. The return trip against the wind takes 2 1/2 hours.

Answers

The following answers were posted by visitors named Keonn'a.

2 lbs of the $3 nuts should be used.

v=1/3*3.14r^2h for r

A grocery store reduced the price of a loaf of bread from $3.20 to $3.09. Find the percent change (discount rate). Round to the nearest tenth of a percent.

Is this a great start: 10x^2+5x=-5 +5 +5 10x^2+5x+5=0 10(x+5)(x+1)=0 10=0 x=5 x=-1

let x=the width then x+4 = the length x+4+x=12

I am sorry not trying to take up your time can you please help me understand the problem

where do I start I am lost?

please help me.

thank you bobpursley.

b. P(BB)=4/7*3/7=12/42=2/7 c.P(GG)=3/7*2/7=6/42=1/7

I got this my equation I need input it into a calculator

how would you graph it?

i need help graphing it

yes i did not continue because help finding b.

d(p)=11,400-8p s(p)=2p price is 1140 the quantity is 2280

thank you R_scott for the help.

(i really need to know the steps on how to do this (please just don't give me the answer i already know it)

6a^4+162a/3a^4-9a^3+27a^2 6a^3*a+6*27a/3a^4-9a^3+27a^2 6a(a^3+27)/3a^4-9a^3+27a^2= 6a(a^3+27)/a^2(3a^2-9a+27)

reiny this 2(x+1)(x+1)/x-1 the answer.

I found the answer 10.017 and the compound continuous answer is 99.02

oh no im so scared