Pre- Calculus

21,228 results, page 31

8th Grade Pre-algebra

3. Select all of the numbers that are correctly written in scienctific notaton A)42 x 10^5 B) 1.1 x 10^4 C) 7.0 x 20^4 D) 6.01 x 10^-4 E) 18.0 x 10^3 4. Simply (2.0 x 10^4)(3.0 x 10^3) A)6.0 x 10^7 B) 6.0 x 10^12 C) 6.0 x 10^5 D) 6.0 x 10^43 5. (7.0 x 10^6)+(2.0 x 10^6) A)9.0 ...

Pre-Calc

Solve for 0 <= x < 2pi. csc^2 (x) = 4 I know one answer is pi/6. Would the others be 5pi/6, 7pi/6, and 11pi/6?

Pre-Calc Question

I may be missing something obvious here, but why is an expression such as sqrt-4 always simplified as 2i and not -2i?

Pre-algebra

PLEASE SHOW ALL STEPS 15-(4m-5)=32 I am just so pleased with this website I love it soooooooooooo much

penn foster child care

A pre schooler should drink ____________ ounces of milk each day

Geometry

Triangle XYZ is the pre-image with vertex X(-6,-4). Given the algebraic rule for the composition,t(3,5) R(270 ,cc) , what are the coordinates of X’?

Pre algebra

Write each of the following expressions without using absolute value. |x−y|, if x<y I reall don't get this please help

Math

And which situation what do you need a percent less someone to solve a problem? 7th Grade Pre Algebra

pre cal

Find the sin(Θ) of an angle in standard position if the terminal side passes through the point (4, -8).

Pre Cal

Given: b = 600, B = 11°, C = 75° in triangle ABC; find a. (Round the answer to the nearest whole number.) a =

Pre calc

Solve the given equation cos(θ) − sin(θ) = 1 I got the answer to be 3pie/2 and 0 but its wrong can someone help Thank you

pre-algebra 1

Write 6.92 x 10 -8 in standard notation. A. 0.000000692 B. 0.0000000692 C. 0.0000000069 D. 0.00000692 Please help, i have no clue!!!

pre algebra 1

Write a rule for the linear function in the table. x f/x 1 -7 2 -10 3 -13 4 -16 A. f(x) = -1/3x – 4 B. f(x) = 3x + 4 C. f(x) = –3x – 4 D. f(x) = x – 7 have no clue, would like some help

pre - CALCULUS

The wind chill factor represents the equivalent air temperature at a standard wind speed that would produce the same heat loss as the given temperature and wind speed. One formula for computing the equivalent temperature is 𝑡 W(t) = {33 − (10.45+10√𝑣...

pre-algebra

ok Relation between two quantities expressed as the quotient of one divided by the other? please help this is puzzling

preschool

how painting will support the communication and intellectual development of the children in pre school setting. need some help thank you.lisa

Pre Cal

Let the line X-2Y=15 and the circle with equation X^2+Y^2=50 intersect at the points A and B. Algebraically find the coordinates of A and B using the information given.

Pre Calc

lim x approaches 0 [1/x *((1/(sqrt(1+x))-1)] It will be easier to understand if you write it out.. How would I algebraically do this? (The answer is -1/2) Help please?

Math - Pre Algebra

$1280 at 13% compound annually for 3 years Use the formula: B= p(1+r)n Please help me I need the answer for tommorow

Pre-Algebra

Can someone show me how to turn this into an equation? I mean like 'y=x-z' -2x+ y > or equal to 2 Did I say what I needed to get right? -MC

Pre-Algebra[URGENT]

How would I solve this? Change 18.35 into a mixed number. Reduce your answer to lowest terms Thanks -MC

pre calcalus

a circle with 4 inch radius, find length of arc when intercepted by central angle of 240 degrees

Pre Cal

Find the manitude of each vetcor, and write each vector as the sum of the unit vectors. Choose either one (2,6) or (4,-5) Thank you

pre calc

1. For the following functions listed below: (a) f(x) = -2cosx f(x) = 0.25sinx (b) f(x) = -3sin(2x+3)+7 f(x) = sinx + 4 Find : (i) the amplitude (ii) the period

Pre-Cal

Find cos(2x) if sin = 7/25 and x lies in quadrant 1 My answer was 336/625 but this was wrong. I do not know how to figure this out.

Pre-Cal(Please help)

1)(1-cos^2x)(csc x) ? Is this equal to sec x? 2) Expand: log7 3 sqrt x / x^2y 3) Find and simplify: f(g) F(x) = x^2 + 2x g(x) = 2x x^2 + 2x(2x) = x^2 + 4x Is this correct?

Pre-Cal

Find the values of Q in degrees and radians without the aid of a calculator. a) cotQ = sqrt 3 / 3 b) secQ = sqrt2

Pre-Cal

Test for symmetry with respect to Q=pi/2, the polar axis, and the pole. r=6 sinQ I know I have to replace (r,Q) with (r,pi-Q) (r,-Q) and (-r,Q) so would that be (6,pi/2)? I do not know how to find the Q.

pre algebra

the kiel family has an annual income of $46,ooo. If they buget 6% for missions, how much will they give to missionaries each year?

child care

I'm doing a lesson plan on diversity for pre-school children and i was wondering what it means when it says sensory expirences?

Government

I'm in Pre AP civics.. can you help me with my essay question? Please? :) How is the constitutional principle of federalism reflected in the formal amendment process?

pre ap physics

what is the force excerted on the surface of a bowling ball that has a diameter of 32cm immersed in water to a depth of 555m?

pre-algebra

a sweater originally cost $37.50. Last week, Moesha bought it at 20% off.How much was deducted from the original price

Pre-algebra:Check

1. How many ways can the letters in the word LINEAR be arranged? a. 360 b. 720 c. 120 d. 240 is the answer a?

Pre-Algebraa

1. Find an equation in slope-intercept form for the line passing through each pair of points: (-4,4), (-5,-3) a. y = 7x - 32 b. y = 7x + 32 c. y = -7x + 32 d. x = 7y + 32 is the answer a?

Math (pre-algerbra)

I've tried this sooo many times I have huge marks on my paper and I just can't figure it out: 3a/8-a/12+7/2=7

Pre Cal

a Function f is defined as f(x)=3*2^x a)is f increasing or decreasing? b)write equation for the horizontal asymptote c)describe the end behavior of f

Pre Cal

a Function f is defined as f(x)=3*2^x a)is f increasing or decreasing? b)write equation for the horizontal asymptote c)describe the end behavior of

Pre-Cal

Find the area of each circular segment to the nearest tenth, given its central angle, x, and the radius of the circle. x= pi/8, r=7

Pre-Algebra Help Ms. Sue Please!!!

Given a scale factor of 2, find the coordinates for the dilation of the line segment with endpoints (–1, 2) and (3, –3). A.(–2, 4) and (6, 6) B.(2, 4) and (6, 6) C.(–2, 4) and (6, –6) D.(2, –1) and (–3, 3)

Pre Calc

how much money should i invest at 8.2% compounded continuously if i wish to have $100,000 in 5 years?

pre cal

f(x)= x^2(x+4) ( x^2-1), the zeroes & the multiplying of each. B. where the graph crosses or touches the x-axis/, c. number of turning points., d. end behavior.

Pre Algebra Help ASAP

Which of the following equations has an infinite number of solutions? a. 3x – 3 = –4x b. 2y + 4 – y = 16 c. 7x + 5 = 4x + 5 + 3x d. 6y – 2 = 2(y – 1) And please explain how I don't understand. Thanks sooooo much!!!

Pre-Cal.

find the domain, range and the asymptote(s), of each function on the same coordinates plane for this equation... f(x)= 3+ lnx and graph them.

Pre-Algebra

What association would you expect if graphing height and weight? (1 point) positive nonlinear negative none of these

Pre Calc

$1 is invested into an account that has a APR of 8% compounded quarterly. How long will it take for my money to double? To triple?

pre cal

How do I express this relationship in a language of variation? I know how to do basic ones but this one is really advanced looking. f=1/2L squarert T/u

pre cal

Determine the intervals on which the function is increasing, decreasing, and constant. A parabola is shown facing down with a vertex of 0,1.

Pre-trig/Calc

Please help me. Use Descartes' rule of signs to describe the roots for each polynomial function. 3. m(x)=x^3+3x^2-18x-40

Pre ALGEBRA

A solid with at most one base cannot be which of the following? A) cone B) cube C) pyramid D) sphere Is it A or D? MS SUE PLEASE HELP ME

Pre Algebra Probability

You and 5 friends go to a concert. In how many different ways can you sit in the assigned seats? ***=my answer a.720 b.120*** c.30 d.15

pre-calc - JAI

Solve the system of equations using matrices. Use Gaussian elimination with back- substitution. x+y+z = -5 x-y+3z = -1 4x+y+z = -2

Pre Cal

Let me try again, because I keep getting something different. This is the problem: ( (2x^-4y-1)(2y^4z^-1) )^-2/2yx^3z^0 Can you please help me simply this. I didn't get what you got. Thanks.

Math (pre-celc 12)

I need to prove this identity: cot(x)+tan(x)=csc(x)sec(x) I get as adding them together, but then I get stuck.

Pre-Cal

Write the trigonometric expression in terms of sine and cosine, and then simplify. tan u sin u + cos u _____________.

Pre-cal

With this equation, y= -2-4sin(3.14/2(x-1/3)), graph two full cycles, scale the x-axis every quarter cycle

Pre alegreba 7th grade

This website is so helpful!!!! Thanks to everyone you posts lessons and answers! I will be posting both soon!

education foundation

Discuss the peculiarities that inform differential pattern of educational advancement in pre and post colonial Nigeria

education foundation

Discuss the peculiarities that inform differential pattern of educational advancement in pre and post colonial Nigeria

PGD EDUCATION

Discuss the peculiarities that inform differential pattern of educational advancement in pre and post colonial Nigeria

PRE CALCULUS

1.) The cash flow per share for the Timerland Co. was $0.18 in 1995 and $4.04 in 2003. Write a liner equation that gives the cash flow per share in terms of the year. Let t=5 represent 1995. Then predict the cash flows for the years 2008 and 2010. 5.) The University of Florida...

Calculus III

I'm supposed to find the expression 'y', when (x^2+100)y'=23 When y(10sqrt(3))=0 Also, I have to find the indefite integral of xsqrt(19x-7), using integration tables in the back of the book "Calculus of a Single Variable, 8th Edition." Tables are in appendix B I used the ...

calculus

express in sinx 1 1 ---------- + -------- cscx + cotx cscx - cotx and express in cosx 1 + cot x ------- - sin^2x cscx = 1/sinx so what do i do w. that extra one on the top!?? im so confused cscx Your fractions aren't lining up. This question is also not calculus. Please do not...

Pre-Calculus

A drug is administered every 6 hours. The kidneys eliminate 55% of the drug over that period. The initial dose is 210 mg. Repeated dosage is 70 mg What is the “Difference equation”? Find the first seven terms of the of the solution sequence. Round to two digits each ...

Pre-Calculus

A drug is administered every 6 hours. The kidneys eliminate 55% of the drug over that period. The initial dose is 210 mg. Repeated dosage is 70 mg What is the “Difference equation”? Find the first seven terms of the of the solution sequence. Round to two digits each ...

mass media

what are pre-book manuscripts and what is the early publishing houses? Pre-book manuscripts are the hand-written or typed (word-processed) pages of an author's books before it's been edited by the publisher. Check these sites for early publishing history. http://www.infoplease...

physics

Determine the acceleration and normal force of system below. Assume no friction, the mass equal to 10.0 kg and the angle equal to 60.0 degrees. Assume gravity equals 9.8 m/s/s. The picture looks like a right triangle with a box sliding down it. I am a 9th grader in conceptual ...

Pre-Calculus

A culture of bacteria obeys the law of unlimited growth. If 500 bacteria are present initially and there are 800 after 1 hour, how many will be present in the cultrue after 5 hours? How long until there are 20,000 bacteria? Hmmm, what is "the law of unlimited growth"? In any ...

Calculus

Find the minimum value of the following function: h(x)= x-(12(x+1)^(1/3) -12) on the interval [0, 26] Honestly, I have found by graphing that the minimum value is at the coordinate point (9,-3), but I need to do this in a way that uses a more "calculus-like" method if you ...

Pre AP Physical Science

If a person's average speed for a 10.00 kilometer race is 5.644 meters per second, what was her winning time?

Pre-calc

Simplify i^51 Im really not sure what they are saying. i to the 51ith power? Wouldnt it already be simplfied or what. It doesnt make sense to me.

Pre-Cal

Perform the addition or subtraction and write the result in standard form. (8+sqrt -18) - (4+3sqrt2i) I know that you have to subtract 8 from 4 but I do not know what to do after this.

Anatomy & Physiology

Nicotinic receptors are found on the pre-ganglionic fibers of both parasympathetic & sympathetic divisions? True or False?

Pre-cal

let P(x)=2x^4-x^3+13^2-8x-24. Use synethetic division to show that x+1 is a factor of P(x) Answer:2x^3-3x^2+16x-24 Then find all real and imaginary roots of P(x)=0.

pre algebra

find the volume of each solid. if necessary, round to the nearest tenth. cylinder: radius 4.2cm, height 9cm.

pre algebra

danielle has 3 dimes, 2 quarters, and 5 nickles in her pocket. what is the probability that she chooses a dime followed by a quarter? is 3/5 the correct answer?

Pre-Algebra

Victoria you helped me with the last problem can you help me again with this one please? 26cm/s=m/min. Convert this using the dimensional analysis.Thank-you.kj

Chemistry/Pre-Calc

I haven't taken precalc in years and have forgotten how to reverse natural log. If ln(A)=18.288, what is the value of A?

pre calc

write the form of the partial decomposition for the given rational expression. Don't solve for constants: 8x+10/x^2+7x-18 please show work!

pre algebra

Jerome, Morgan, and Bly compete in a 10-kilometer race with 5 other athletes. What are the odds that they finish in the top 3 places?

Math(Pre=Calc)

The first term in a sequence of number is t1 = 4. The terms that follow are defined by the formula: tn - tn-1 = 3n -2. Determine the value of t50.

pre cal 2

use the given values to evalute all six trigonometric functions secx=3/2, cscx=-3square root5/5

Child development

What interesting materials and experiences might promote cognitive and language growth in pre-school age children?

pre-calc

Find the area of a triangle with sides of length 5 and 8 and included angle 74°. (Round your answer to one decimal place.)

pre-calc

Show that f and g are inverse functions algebraically. f(x)=x^3/2 g(x)=3 cuberoot 2x My work so far: (3sqrt2x)^3 ------------ 2 I need help on the numeral part of the expression

pre-cal

Let f(x) be polynomial function. Explain in your own words how to use the Rational Zero Theorem to find the real zeros of f (x).

Pre-Algebra

How many different ways can you choose 3 frozen yogurt toppings from 20? 6,840 1,140 60* 2,260 I think it is 60 because 3*20 however not positive.

Pre-Algebra

Tempurature of substance increases by 10°C in 5 minutes. Write it as a unit rate. Then convert it to degrees Fahrenheit per hour.

Pre-calc

find a possible polynomial equation of degree 4 if the zeroes are -1,2, and 5, the graph touches the x-axis at -1 but does not cross through, and the y intercept is -5

Pre-Calc

Please help me solve these two equations!! Divide and express as a polynomial: 12a^8b^5 - 9a^14b^15 + 6a^6b^10 _____________________________________ 3a^2b^5 Simplify: a/b - b/a __________ a-b/b

pre algebre

nee help adding/subtracting fractions, x represents a number, solve by writing answer as integer or simple fraction.

Pre-Cal

There exist two complex numbers c, say c1 and c2, so that 2 + 2i, 5 + i, and c form the vertices of an equilateral triangle. Find the product c1 c2. I need help

Pre-Calc Help!

I really need help with this question. Thanks! Find the zeros of the function algebraically. Be sure to show all work. f(x)=x^2-8x+15 --------------- 10x

Pre-Calc/Trig...

Which of the following quadratic functions has a graph that opens downwards? check all that apply A. y=2x^2-9x+3 B. y=x^2+4x+8 C. y=-(5+2x^2) D. y=60x-15x^2

pre algebra

skylar is having a party ordered 6 pizzas sliced into 8 pieces for 12 kids what fraction of the pizza will each kid get?

Pre-Calc/Trig...

I have one way, but cant think of another? Show two ways of finding y if y = log4 64. Explain your thinking. 4^x=64 x=3

pre-calc

Use mathematical induction to prove that the statement is true for every positive integer n. Show your work. 2 is a factor of n2 -n+2

pre calc

Use mathematical induction to prove that the statement is true for every positive integer n. Show your work. 2 is a factor of n2 - n + 2

pre calc

Use mathematical induction to prove that the statement is true for every positive integer n. Show your work. 2 is a factor of n2 - n + 2

Pre-Cal

Simplify and show work: [(X^(2)+3)^(1/3)](-1)(x^(-2))+[1/3(x^(2)+3)^(-2/3)](2x)(x^(-1)) My answer key says that it's this but I have no idea how to get to it. I've tried 4 times already and failed each: [-(x^(2)+9)]/[(3x^(2))(x^(2)+3))^(2/3)]

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