# Pre- Calculus

21,152 results, page 17

### Pre-Calculus

A car manufacturing company (the Company) can produce a car for $3000.00 and a truck for $5000.00. Suppose "C" cars and "T" trucks are sold to the dealer at mark-ups, respectively, of 20 and 30 percent. If the Company made a profit of $27 million on sales of $137 million in ...

### Pre-Calculus

The treatment of a certain viral disease requires a combination dose of drugs D1 and D2. Each unit of D1 contains 1 milligram of factor X and 2 milligrams of factor Y, and each unit of D2 contains 2 milligrams of factor X and 3 milligrams of factor Y. If the most effective ...

### Pre-calculus

Find the slope of the line passing through the points at (a, a+3) and (4a, a-5). 2) Together, two printers can print 7500 lines if the first printer prints for 2 minutes and the second prints for 1 minute. If the first printer prints for 1 minute and the second prints for 2 ...

### Pre-calculus

Find the slope of the line passing through the points at (a, a+3) and (4a, a-5). 2) Together, two printers can print 7500 lines if the first printer prints for 2 minutes and the second prints for 1 minute. If the first printer prints for 1 minute and the second prints for 2 ...

### Math (Trig/pre-calculus)

some stars are so far away that their position appear fixed as earth orbits the sun. other stars, however, appear over time to shift their positions relative to the background of "fixed" stars. suppose that the star shown below appears to shift through an arc of theta = 0 ...

### Calculus I

Hello! I am taking Calculus I and am in Sec. 4.3 of Stewart's 7th Edition. I ran across a problem that I don't understand the mechanics of, could someone show me? Thanks a bunch! For what values of the numbers a and b does the function f(x)= axe^{b(x^2)} have the maximum value...

### Calculus

This is a calculus homework question but in reality the problem here is understanding the algebra. Find the Critical Numbers of f(x) = x^(3/5)(4-x) The product rule gives -x^(3/5) + (12-3x)/(5x^(2/5) My booklet explains that simplifying this gives you 12-8x / (5x^(2/5). How ...

### algebra 1

The Question Writing Commitee consists of seven volunteers from around the country who are amazingly dedicated to the Mathcounts program. This past weekend, was the last meeting for this particular group of question writers. Before the meeting, they are put into pairs, eith ...

### Pre-Calculus

Trigonometric Functions, Radian Measure ∏ <-- will be using this for pi Using exact values, convert to radians ( hint use fraction of ∏) 90° = 90°*∏/180° = 1∏/2 ^^would it be right to also call it 2∏ radians? Determine the angle at the ...

### Pre-Calculus

The table below shows a frequency distribution of the number of pickup trucks sold at 85 truck dealerships in Maine over an 18-month period. Number of trucks sold/Number of dealerships: 70-90/2 90-110/11 110-130/39 130-150/17 150-170/9 170-190/7 Find the interval about the ...

### Pre-Calculus

The table below shows a frequency distribution of the number of pickup trucks sold at 85 truck dealerships in Maine over an 18-month period. Number of trucks sold/Number of dealerships: 70-90/2 90-110/11 110-130/39 130-150/17 150-170/9 170-190/7 Find the interval about the ...

### Pre-Calculus

An investor has $100,000 to invest in three types of bonds: short-term, intermediate-term, and long-term.How much should she invest in each type to satisfy the given conditions? Short-term bonds pay 4% annually, intermediate-term bonds pay 5%, and long-term bonds pay 6%. The ...

### Pre-Calculus

For a boat to float in a tidal bay, the water must be at least 2.5 meters deep. The depth of the water around the boat, d(t), in meters, where t is measured in hours since midnight, is d(t)=5+4.6sin(0.5t) Use three decimal places in all intermediate calculations. (a) What is ...

### Pre-Calculus

A 15N force acting at 15 degrees north of east and a 18N force acting at 79 degrees north of west act concurrently on an object. What is the magnitude and direction of a third force that produces equilibrium on the object? Show sketch and work. ------ x-component:: 15*cos(15 ...

### childhood

it has been propsed that there is a tendency for parent to trat full term babies better than preterm babies a big reason is ? a. that a full term infants don't cry as much. b. that the behavior of pre term babes is more annoying and irratible c. that pre term infants demand ...

### Pre calculus

Precalculus-------Give an example of three functions f,g,h none of which is a constant function such that? Precalculus-------Give an example of three functions f,g,h none of which is a constant function such that? foh=goh but f is not equal to g I tried with many functions but...

### Pre-Calculus/Trigonometry

Help please Tracy has a cell phone plan that provides 250 free minutes each month for a flat rate of $29. For any minutes over 250, Tracy is charged $0.35 per minute. Which of the following piecewise functions represents charges based on Tracy's cell phone plan? A. f(x)={29,x ...

### Pre-Calculus

. Margaret is planning to invest up to $22,000 in certificates of deposit at City Bank and People’s Bank. She wants to invest at least $2,000 but no more than $14,000 at City Bank. People’s Bank does not insure more than a $15,000 investment, so she will invest no ...

### pre calculus

Use Hooke's Law for springs, which states that the distance a spring is stretched (or compressed) varies directly as the force on the spring. A force of 265 newtons stretches a spring 0.15 meter. (a) What force is required to stretch the spring 0.2 meter? (Round your answer to...

### Pre-calculus HELP PLASE !

1.Write the rectangular equation in polar form. (x – 4)2 + y2 = 16 2.Write the equation –2x + 6y = 7 in polar form. 3.Graph the polar equation 2 = r cos(theta – 20°). 4. Write the polar equation in rectangular form. r = –12 cos

### Pre-Calculus

A ball is thrown vertically upward with an initial velocity of 64 feet per second. The distance(in feet) of the ball from the ground after t seconds is s=64t-16t. At what time will the ball strike the ground? For what time t is the ball more than 28 feet above the ground. The ...

### Pre-Calculus

Can someone please help me with the following question. 1) The weight of an object above Earth can be modeled by a function of the form w(h)=(r/r+h)^2*"w , where r is the radius of Earth 0" (approximately 3950 miles)," h" is the distance above Earth's surface, and "w is the ...

### CALCULUS 2

Use calculus to find the volume of the following solid S: The base of S is an elliptical region with boundary curve 9x^2+4y^2=36. Cross-sections perpendicular to the x-axis are isosceles right triangles with hypotenuse in the base.

### Pre-Calculus

Hello! Can someone check and see if these answers are correct? Thanks! 1.) If a line with slope of 1/2 is perpendicular to another line, then the slope of the other line is -2. TRUE or FALSE? (I choose True) 2.) If Segment QR || Segment TU and the slope of Segment TU is -3, ...

### Pre-Calculus

Hello! I wanted to know if my answers are right or not? Thanks! :) 1.) Segments AB and CD have the following endpoints. Determine whether the segments are parallel, perpendicular or neither. A (3, 0), B (-2, 2), C (-1, 4), D (-3, -1) My answer: Parallel 2.) Segments AB and CD ...

### Pre-Calculus

Hello! I wanted to know if my answers are right or not? Thanks! :) 1.) Segments AB and CD have the following endpoints. Determine whether the segments are parallel, perpendicular or neither. A (3, 0), B (-2, 2), C (-1, 4), D (-3, -1) My answer: Parallel 2.) Segments AB and CD ...

### Pre Calculus 12

Another sine/cosine question i don't get in vancouver on certain day, high tide is 20m at 2am, the next low tide is 8m at 6am, what an equation that represents height (h)of water at any time (t)since midnight) what is the height of water at 8:45AM? What is height of water at 8...

### Math (Pre-calculus)

The Fiedler family has up to $130,000 to invest. They decide that they want to have at least $40,000 invested in stable bonds yielding 5.5% and that no more than $60,000 should be invested in more volatile bonds yielding 11%. How much should they invest in each type of bond to...

### Pre-Calculus

Your computer supply store sells two types of laser printers. The first type, A, has a cost of $86 and you make a $45 profit on each one. The second type, B, has a cost of $130 and you make a $35 profit on each one. You expect to sell at least 100 laser printers this month and...

### pre calculus honors

An object moving vertically is at the given heights at the specified times. Find the position equation s = 12 at^2 + v (small o) t + s (small o) for the object. At t = 1 second, s = 161 feet At t = 2 seconds, s = 98 feet At t = 3 seconds, s = 3 feet a. s=−8t^2−t&#...

### Pre-Calculus

The Gateway Arch in St. Louis, Missouri is not a parabola but a shape known as a catenary. The name is given to the shaoe formed by the Graph of the hyperbolic cosine (cosh). The arch has a height of 625 feet andna span of 600 feet. The hyperbolic cosine is defined as: Cosh x...

### Pre-Calculus(Trigonometry)

An 8-m boom is used to move a bundle of piping from point A to point B. Determine the exact vertical displacement of the of the boom when the operator moves it form 30 degrees to 60 degrees. (Just need work checked) --------------------------------------- I drew two triangles ...

### Calculus--Reiny

Calculus - Reiny, Friday, December 23, 2011 at 6:59pm I read that as (4a^2-1)/(4a^2-16) * (2-a)/(2a-1) , my brackets are necessary = (2a+1)(2a-1)/( 4(a+2)(a-2) * (2-a)/(2a-1) the (2-a)/(a-2) are opposite, they will give you the -1 so.. = -(2a+1)/(4(a+2)) , again you have to ...

### pre-algebra

What is (+3)-(-7)=

### Pre algebra

f(g+3+h)

### Pre-Algebra

X5 x X4

### pre algebra

2x+3y=6

### Pre-Algebra

-7(p-3)+2p=24

### pre-al

5(2x-3)+8=9 how do you solve this?

### Pre-Algebra

i can help

### Pre-Cal

xy=2 {{x^2=3+y^2}}

### pre-algebra

-8a+6(a+7)=1

### pre-algebra

is x+3x 4x or 3x^2?

### pre algebra

5-2

### Pre Calc

How do I do this?... Sq Rt[(9*Sq Rt(3x^2))]

### pre algbra

88*66

### pre algebra

9r-5(r+6)=8r-2

### pre algebra

- 2 + 5 = +3

### pre-algebra

0.6x+ x ¡Ü1.4x-1

### pre-algebra

8x-(4x+7)=5

### pre-algebra

3 1/2 * 1 1/2

### pre calc

13-5e^2x=3

### Pre- Algebra

-6x-15>57

### Pre Calc

h t t p : / / w w w . j i s k h a . c o m / d i s p l a y . c g i ? i d = 1 2 5 8 1 5 2 7 6 5

### pre algebra

1/2 +(2/3 / 3/4) +(4/5 x 5/6)=

### pre algebra

11/16 + 3/16 =

### pre algebra

what is 5(2x-3)+8=9

### pre algebra

60 -(6/1 +40/8)

### Pre Cal

1 --------- 2x^2-2 --------------- 2 + x ---- ------- x+11 x^2-2x-3

### pre-algebra

98-8w^2

### pre algabra

-4(-3x+5y+5)+7(5x+2y-1)

### pre calc

(1/x^2-49)/(1/x+7)?

### Pre algebra

y/2 - 5y/6 + 1/3=1/2

### pre algebra

2/3y= 6 1/6.

### pre algebra

X/7 - 4 = 2

### pre algebra

1/3 + x = 19/27

### pre algebra

13-3p=-5(3+2p)

### Pre-Algebra

4x<-16

### pre-algebra

6y+42=4y

### Pre-algebra

So 7t = -98. What is t?

### Pre-Algebra

12 > y - 5

### pre algebra

(6.3 X 10-2) - (2.1 X 10-1)

### pre-algebra

what is x? -2x+4=3x-6

### pre-calc

(3^-2+4^-2)^-1/2

### pre-calc

(3^-2+4^-2)^-1/2

### PRE-ALGEBRA

2V/5+V/4

### Pre-Calc

2-2

### Pre-Algebra

What is a-3/5=1/5 ?

### Pre-algebra

7(v+5)>56

### Pre-algebra

48>3(w+7)

### Pre-algebra

-3(2b+4)>4(b+7)

### Pre-algebra

-5(3e-2)<-2(6e+7)

### Pre-algebra

8(4s-7)<6(2s+4)

### Pre-algebra

8(m+5)>-32

### Pre-algebra

6(p-8)>78

### Pre-algebra

-12(g+8)>24

### Pre-algebra

-5(c+15)<75

### Pre-algebra

8(2j-6)>2(4j-4)

### Pre-algebra

7(3g-9)>6(5g-6)

### Pre-algebra

9n+5-9-9n

### Pre algebra

6k+10-4k-2k

### pre algerbra

a-8+2

### Pre-Algebra

5 and 17/20 - 3 and 1/4

### Pre-Algebra

5 and 17/20 - 3 and 1/4

### Pre-Algebra

4/3x+2=-1

### Pre-algebra

P=5g-23=

### Pre-algebra

P=5g-23=

### pre-algebra

1/9+x=5/6x-3/4

### pre-algebra

3.7x-3.5=x+5.4 0.7(0.9x+3)-0.8(1.6x-0.7)=x