Mathematics

11 years ago

ONLY ONE Calculus QUESTION, CAN someone fix my mistake.

MY MISTAKE IS: correct that the critical points are -2 and 3, but you did not determine the nature of these values i.e. what is going on at these values (-2 marks)

1.Given the function M(t) = 2t3 – 3t2 – 36t, find the critical values and d

livestrong136 1136 1 Reply

11 years ago

Have anyone ever taken the course, Real-Analysis?

I am a third year math major and I am scared out of my mind to take real analysis. I love (computational) math but I suck at proofs... meaning I can't do them at all unless I memorize them. Math is not my best subject (I have gotten by with Bs i

ct2djk 591 2 Replies

mhelena

11 years ago

Foadbear, can you please answer this calculus question.

The graph of the derivative function ƒ'(x) of a function ƒ(x) is shown below.

Determine:
a.   the intervals where ƒ(x) is increasing: x < 0 & x > 2
b.   the intervals where ƒ(x) is decreasing: 0 < x < 2
c.   t

livestrong136 968 1 Reply

11 years ago

The demand functions for products A and B are each function of the prices of A a

The demand functions for products A and B are each function of the prices of A and B are given by:

Qa = [50 (Pb)1/3] / [(Pa)1/2]

Qb = [75Pa] / [(Pb)2/3]

Find the

gohar90211 903 1 Reply

11 years ago

Roots using De-Moivre theorem?

Find the roots of: 8x3 - 4x2 - 4x + 1 = 0 using De-Moivre theorem?

If you don't know the theorem, could you should me your own way?

gohar90211 777 5 Replies

11 years ago

The scalar equation of the line perpendicular to (Grade 12)

There are lots of questions so I couldn't type all of them. Can someone answer all these asap. Thnx

livestrong136 1230 2 Replies

11 years ago

Fractional exponents, radicals

Simplify the following expression. if the expression is not a real number, state "not a real number"
1) 36 ^1/2
2) 27^-4/3
3) -10000^1/4
4) 81^1/4
5) 4x^2 multiply y^1/2 divided by x^4 multiply 7y^3

flower555 5062 6 Replies

exclaimed

11 years ago

CAN YOU PLEASE FIX 5 CALCULUS MULTIPLE CHOICE QUESTIONS

I have highlighted my answer but they are wrong, so can someone please answer the right one.

livestrong136 1407 5 Replies

11 years ago

You have been asked to manufacture a replica cast iron cannon ball by sand casti

You have been asked to manufacture a replica cast iron cannon ball by sand casting. The casting is made up of two parts: the cannon ball itself which is 127mm in diameter and a casting sprue (used to pour the molten cast iron into the mould) which is

gohar90211 894 1 Reply

11 years ago

Find the nth term of the geometric sequence?

Find the nth term of the geometric sequence?

When:

A(1) is -18
A(5) is 3/64
N is 3

Please show me how to do this problem

gohar90211 753 3 Replies

11 years ago

4 very short slope and tangent questions

Using the function ƒ(x)=x3 find: ( Separate multiple answers by commas with no spaces eg.2,-5 )

a. the value of x where the slope of a tangent is 27 =
b. the slope of the tangent when x= -5 =
c. the value of x where the slope o

livestrong136 700 1 Reply

11 years ago

Couple more short questions

(Graph is attached for this question)
Given the following graph of the function y = ƒ(x) Find the interval(s) x value(s) for which each of the following is/are true ( Enter your answers separated by commas with no spaces. eg. A

ƒ?(x)

livestrong136 1492 5 Replies

11 years ago

17 Multiple Choice Question Needs To be Done by tonight.

Hey, PLEASE THESE QUESTIONS ARE SOOO IMPORTANT TO ME, CAN SOMEONE ANSWER THESE QUESTIONS ASAP.

The plane x = 2 is
Question 1 options:
a)   parallel to the yz-plane
b)   parallel to the xz-plane
c)   parallel to the xy-plane

livestrong136 1105 2 Replies

livestrong136

11 years ago

please help!

How can i make this problem an equation and solve it? Please help me on this. Thanks Thinking Face

A vendor sells hot dogs and bags of potato chips. A customer buys 4 hot dogs and 5 bags of potato chips for $12.00. Another customer buys 3 hot dogs

MedicLife 2747 9 Replies

11 years ago

Determine the critical region and critical values for z that would be used to te

Determine the critical region and critical values for z that would be used to test the null hypothesis at the given level of significance, as described in each of the following:

(A) Ho: u less than or equal to 83 and Ha[/s

gohar90211 851 1 Reply

11 years ago

The propeller of a boat at dock in the ocean will rise and fall with the waves.

The propeller of a boat at dock in the ocean will rise and fall with the waves. On a particularly wavy night, the propeller leaves its resting position and reaches a height of 2m on the peaks of the waves and -2m in the troughs. The time between the

gohar90211 1514 2 Replies

11 years ago

Teacher fired after assigning violent math problems to third graders

A Washington, D.C., charter school teacher has been fired after it was discovered the teacher had assigned third-grade students a number of math problems framed around violent and illegal scenarios.

At first, the unnamed teacher at the Tri

bio_man 723 2 Replies

germ

11 years ago

Standing 10 feet below the surface, you throw an object with an initial velocity

Standing 10 feet below the surface, you throw an object with an initial velocity of up to 36 ft/sec, how long until it lands outside the hole having gone up and back down? Use the formula h = -16t2 + 36t - 10, where h is the height of the

gohar90211 1476 3 Replies

gohar90211

11 years ago

LINES AND PLANES: needs checking

NEED CORRECTION, also this . means dot multiplication.

My teacher comments:

#6) you've made some errors (-2 marks)

#8) correct, they intersect at a point, but you need to find the point like you did in #7 for

livestrong136 777 1 Reply

alisi09

11 years ago

A vector of length 5 perpendicular to both u = (3, -1, 5) and v =(2, 1, 0) has coordinates

A vector of length 5 perpendicular to both u = (3, -1, 5) and v =(2, 1, 0) has coordinates

Question options: btw SQ MEANS SQUARE ROOT

a) (-25/ SQ150 , 50/SQ150, 25/ SQ150)
b) (-25, 50, 25)
c) (-

livestrong136 1003 2 Replies

livestrong136

11 years ago

Intersection points for conic problems

I did them but I'm not sure if my answers are right.. can you do them to check?

-x2 + y2 - 36 = 0
x2 + y2 - 32y + 156 = 0

and the second one is

x2 + y[s

gohar90211 1078 5 Replies

dopamine

11 years ago

Checking Needed, DONE: ONLY NEEDS CHECKING

Hey, Can someone confirm my answers please. Some questions I got two answers, can someone tell me which one is the right answer.

Question 1
The scalar equation of the line perpendicular to (x, y) = (5, 2) +r(1, -3) through the point

livestrong136 1589 4 Replies

livestrong136

11 years ago

Choose one of the groups of equations from the table below. Indicate which group

Choose one of the groups of equations from the table below. Indicate which group you choose in your word processing file.

Group 1

y = -3/2x + 4

–3x + 2y = 8

Group 2

y =-2/3 x – 2

gohar90211 1272 1 Reply

Bio_World100

11 years ago

Find the coordinates of vertices of the feasible region.

1) Find the coordinates of vertices of the feasible region.

A. (2,-1),(2,3),(4,1)
B. (0,-3),((0,5),(4,1)
C. (2,0),(3,0),(4,1),(2,3)
D. (0,0),(0,5),(3,0),(4,1)

2) Identify the range of y=|x|=4
A. {x|x>4}

gohar90211 1596 N/A

gohar90211

11 years ago

Angle measurements were taken from two points on direct opposite sides of a tree

Angle measurements were taken from two points on direct opposite sides of a tree. One angle of elevation is 35 degrees and the other is 30 degrees. The distance between these two viewing points is 65m. How tall is the tree?

gohar90211 1860 1 Reply

germs

11 years ago

Probability

A committee is to be formed to investigate what activities teenagers have available in small communities. The committee is to have 7 members, chosen randomly from interested community members. There are 10 parents, 5 teenagers, and 4 adults without c

mkshawty 712 2 Replies

11 years ago

Help!

In the fourth row from the front, there are 25 students consisting of 6 grade 10s, 8 grade11s, and 11 grade12s. A draw for 3 CDs was conducted before the show started, and all three winners came from the fourth row.
What was the probability tha

mkshawty 1142 4 Replies

11 years ago

When simplifying the expression (2/x)+(2/x-1)+(2/x+2) . The denominator is x(x+1

When simplifying the expression (2/x)+(2/x-1)+(2/x+2) . The denominator is x(x+1)(x–1), what is the numerator?

6x^2 + 9x – 4
6x^2 + 8x + 4
6x^2 + 9x + 4
6x^2 + 4x – 4

gohar90211 3381 1 Reply

Bio_World100

11 years ago

For the independent-measures t statistic, what is the effect of increasing the d

For the independent-measures t statistic, what is the effect of increasing the difference between sample means?

For the independent-measures t statistic, what is the effect of increasing the difference between sample means?

a. I

gohar90211 6685 1 Reply

bioboi

11 years ago

probabilityyy question round decimal places

A community meeting was attended by 37 parents along with 26 students. A committee is to be formed consisting of 8 people: 4 parents and 4 students. If you are one of the students at the meeing, what is the probability that you will be chosen for the

mkshawty 1214 2 Replies

11 years ago

GRAPH MATH 30 PURE

The picture is attached

a) The graph of y=f(x) is shown. On the same grind and graph y+2=f(x-2)

and

b) Explain how you obtained the graph in 4.A

Show your work! thanks

mkshawty 670 1 Reply

Bio_World100

11 years ago

translation graph

The picture is attached and so is the question I could not post the question so it is on the picture thanks

mkshawty 658 2 Replies

11 years ago

y=-f(x) graph

picture is attached

draw the graphs of y=-f(x) and y=f(-x) on the same grid as y=f(x) and Clearly identify each graph

mkshawty 825 1 Reply

11 years ago

I loath word problems...

I know this is easy math. I do not know why I can never set these up properly.

One number exceeds another by 26. The sum of the numbers is 64. What are the numbers?

trin 2405 13 Replies

11 years ago

The graphs of y=(x-2)^2+1 and its reflection in the y-axis are given

The graphs of y=(x-2)^2+1 and its reflection in the y-axis are given
Picture is attached

a) what is the equation of the reflected graph?

and

b) explain ow the equation of the reflected graph can be obtained by

mkshawty 1955 9 Replies

11 years ago

How to find an equation for the wheel?

I need a little help with this is someone does not mind.

The original Ferris wheel was built in 1893 by Pittsburg, Pennsylvania bridge builder George W. Ferris. The Ferris wheel was originally built for the 1893 World’s Fair in Chica

wevie 1724 3 Replies