# Pre Cal (logs)

6,562 results

**Pre Cal (logs)**

I need help with these logs 1: Log underscore4 16X 2: 2 Ln ( X(sqr. root)e 3:5^[2logUnderscore5(3x)] 4:log underscore2 ^[1280-logunderscore2 5) I don't understand how to do them thanks

**more pre cal logs**

sorry I am so lost I missed the class that talked about logs since my sister was in the hospital giving birth to a still born baby.... now I am all lost... Expand the log Ln 3sqrootx^2y/x+3 (the 3 is part of the sqroot not infront like the 3rd power) I hope that makes since

**Math**

Logs are stacked up in apile as shown in the figure. The top row has 15 logs and the bottom row has 21 logs. How many logs are in the stack? a1= 1+14=15 an= 7+14=21 s1=(n/2)(a1+an) (n/2)(15+21) = 18 How do I figure out the n?

**Physics**

Raft made of 2.2m long pine logs.Average diameter of logs 26cm.How many logs are needed to strap together to build raft to hold max 4 ?What percent of the logs is under water when you are on your raft in the water with your friend?

**Physics**

Raft made of 2.2m long pine logs.Average diameter of logs 26cm.How many logs are needed to strap together to build raft to hold max 4 people? What percent of the logs is under water when you are on your raft in the water with your friend?

**pre cal**

does anyone take pre-cal online ?

**another pre cal (logs)**

write as a single log log(underscore3)(3x-6)-[log(underscore3)(x^2-4)+log(underscore3)81] thanks

**Physics**

PART 1 Raft made of 2.2m long pine logs with Average diameter of logs 26cm.How many logs are needed to strap together to build raft to hold max 4 people? Density of log = 600 kg/m^3 Each people weights 512N PART 2 What percent of the logs is under water when you are on your ...

**Integrated Physics and Chemistry**

The specific heat capacity of copper is 0.09 cal/g°C. How much energy is needed to flow into a 10-gram sample to change its temperature from 20°C to 21°C? A)0.009 cal B)0.09 cal C)0.9 cal D)9 cal

**math**

80 cal/g x 5 g 400g/cal or 400 cal/g not sure can any one help Neither. 80 cal/g x 5g = 400 cal. The unit g cancels to leave calories. x2+2x-15

**algebra**

200 logs are stacked so that 20 logs at bottom row 19 in the next ,18 in the next and so on.In how many rows can 200 logs be arranged and how many are there on the top row ?

**math - natural logs**

Find the EXACT solution to e^(1-x) = 4^x You must use logs, not just a calculator.

**Chemistry/Physics**

How much heat is required to raise the temperature of 100 g of lead 20 degrees C? The specific heat of lead is 0.0305 cal/g K. A) 51 cal B) 61 cal C) 71 cal D) 81 cal

**Precalculus**

.5=e^(-20t) I am assuming this involves logs but we did't really learn logs. Anyone care to walk me through with a calculator. Have the Ti-83

**math logs**

solve 3^(2x+1) = 9^(2x-1) using base 3 logs

**Pre-Calculus**

I'm trying to finish up my pre-cal homework and I am stuck on 2 problems... ***determine the intervals over which the function is increasing, decreasing, or constant*** 32. f(x)=x^2-4x 33. f(x)=√x^2-1 (that's square root of x^2-1) thank you so much for the help =)

**Pre-Calculus**

I'm trying to finish up my pre-cal homework and I am stuck on 2 problems... ***determine the intervals over which the function is increasing, decreasing, or constant*** 32. f(x)=x^2-4x 33. f(x)=√x^2-1 (that's square root of x^2-1) thank you so much for the help =)

**Physics**

A 150 gram golden (specific heat 0.03 cal/gram^0 C) spoon at 20^0C is placed in a cup of tea at 100^0C. The amount of heat which the spoon absorbs from the tea which is necessary to reach spoon's tempature 47^0C is a)360.4 Cal b)121.5 Cal c)78.24 Cal d)15.08 Cal e)157.5 Cal

**Science**

A 50 gram ice cube is cooled to -10oC in the freezer. How many calories of heat are required to heat it until it becomes liquid water at 20oC? (The specific heat of ice is 0.5 cal/goC.) Answer A) 1250 cal. B) 4000 cal. C) 5000 cal. D) 5250 cal. Can someone please help me solve...

**physics**

A 50 gram ice cube is cooled to -10oC in the freezer. How many calories of heat are required to heat it until it becomes liquid water at 20oC? (The specific heat of ice is 0.5 cal/goC.) Answer A) 1250 cal. B) 4000 cal. C) 5000 cal. D) 5250 cal. Can someone please help me solve...

**Maths (Logs)**

1.Write the following equation without logs log y = mx+ c This would be y = 10^(mx+c) right? 2. Explain why this fits the exponential model (in other words, it can be written in the form y = a x b^x where a and b are real numbers).

**Chemistry**

How much heat is released when 10 g of steam at 100°C is cooled to 10 g of liquid water at 100°C? I am working on a practice test and the answer is not in the back of the book. Can some one help me. 1. 10 cal 2. 5400 cal 3. 800 cal 4. 6200 cal

**chemistry**

How many calories are required to heat 25.0 g of platinum from 24.5 °C to 75°C (specific heat of platinum = 0.139 J/gK)? 1. 47 cal 2. 42 cal 3. 48 cal 4. 20 cal 5. 80 cal Thank you.

**Pre-Cal**

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

**Pre Cal**

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

**pre cal**

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

**Pre cal**

ix^2-2x+i=0

**Pre Cal**

x 2 + y 2 = 0

**pre cal**

x^2+bx+ ?=(x+ ? )^2.

**pre cal**

(x/x-1)-(x/x+1) -2=0

**pre cal**

1/(x-1)- x/(x+1)-2=0

**Physics**

A substance has the following properties; Boiling Point = 140 °C, Freezing Point = -10 °C, specific heat as a gas, liquid and solid, 0.3 cal/g.C°, 1.8 cal/g.C° and 0.8 cal/g.C° respectively. Heat of fusion =100 cal/g and heat of vaporization = 480 cal/g. How much heat ...

**chem**

"Yule logs are simulated wood logs make of compressed paper that burn with a red and green flame.How would you produce a similar yule log?"

**pre - cal**

12-5y^2 what's the question?

**Pre-Cal**

What are bearings??

**pre cal**

what is the sum of e or 1n

**Pre Cal**

Solve for x 2^x=8^x-3

**pre cal**

solve for x 8x-(2x-1)=3x-10

**Pre Cal**

What is the inverse of g(x)= 1/2(x-1)^3-4

**pre cal**

(y^2)^-4y^8 simplify

**Pre-Cal.**

How does this go from x^2+ to 2i, explain.

**Pre-Cal**

tan-1=43\9.3

**Pre-Cal**

2y=cos(4(t-6))+6

**pre cal**

f(x) = 3x + 5, g(x) = 6x^2 Find (fg)(x)

**Pre cal**

sin55=12/b what is b

**Chemistry**

Which of the following is the correct unit for specific heat? degree C*** Cal cal/g cal/(g*deg C)

**Science -- Check my Answer Plz**

How much heat (calories) must be applied to a 100 mL beaker filled with boiling water in order to vaporize the water? ** A) 540 cal ** B) 540 * 10^4 cal C) 800 cal D) 8000 cal Is A correct? or cud it be B.?

**pre-cal**

find the value(s) of x for which f(x)=g(x). f(x)=x^4-2x^2,g(x)=2x^2

**Pre-Cal (again)**

If: f(x)= 3/x^2-1 g(x)= x+1 What is the domain of f, g, and f o g?

**pre cal**

What would cos2theta=-1/2 be???

**Pre-Cal**

Find f X g 3 sqrt of x+1 X x^3+1

**Pre-Cal**

Simplify e^3ln2-1

**pre-cal**

(576^1/2+512^1/3)^1/3

**pre-cal**

tan((theta/2)+(pi/6))=-1

**Pre Cal**

simplify the quotient: [x(5x+1)-3(x^2+1)]/ [(x-1)^2]

**Pre Cal**

cos^2+tan^2=1

**Pre Cal**

cos 75 deg

**pre cal**

7tan^2(pheta)-2=3

**pre-cal**

f(x)=((6xy^3)^1/2)((30x^4y^6)^1/2)/(5x^-7y^4)^1/2

**Pre Cal**

f(x) = log3(93 x + 3 815 x + 3)

**pre-cal**

find the intercepts of y=2x-4

**Pre-Cal.**

f(x)=x^3-3x^2+x-12 =x^2(x-3)+4(x-3) =x^2+4) (x-3) so if f(x) = 0 at x = 3,+/- 2i. what is the f(x) factored form

**pre cal**

quadratic equation 2x^4-5x^2+2=0

**PRE-CAL**

SIMPLIFY 55/SQUARE ROOT OF 20 -3

**pre cal**

solve for x: x^(2/3)=(1/27) (2^(x)+4)/(2^x)=2 explain please

**Pre-Cal.**

Describe the end behavior of f(x)=2x^4-5x+1: A. x-->‡, f(x)-->‡; x-->-‡, f(x)-->-‡ B. x-->‡, f(x)-->‡; x-->-‡, f(x)-->‡ C. x-->‡, f(x)-->-‡; x-->-‡, f(x)-->‡ D. x-->‡, f(x)-->-‡; ...

**Pre-Cal**

solve(5-x)^-3=8 teach if possibe if not, its ok Thanks

**Pre-Cal**

Find the inverse of the function f(x) = 3^x+2

**Pre-Cal**

Identify any asymptotes of the graph. y = 1.08^5x

**Pre-Cal**

What is the domain of f/g? f(x) = x / x+1 g(x) = x^3 Please explain! Thank you

**Pre-Cal**

what about the domain of 1/x. Would it be 0?

**pre-cal**

solve this system of equation 3x-y+5z-2w=-44 x+6y+4z-w=1 5x-y+z+3w=-15 4y-z-8w=58

**Pre-Cal**

Find the domain for the function f(x)=-2x^(2)÷-x^(2)-6x-27

**pre-cal**

what is the vertex and directrix of the parabola y=-1/2x^2 + 10 - 46

**pre cal**

[root2(cos2pi/11+isin2pi/11)]^4

**Pre Cal**

the function y= tan (x/3) has an x intercept at?

**pre cal 2**

solve the equation 4cos^2x-1=0

**Pre Cal**

simplify the quotient: [(x+1)^3(4x-9)-(16x+9)(x+1)^2]/[(x-6)(x+1)^3]

**pre-cal**

Find B so that F(x)=-x^2+bx-75 has a maximum value of 25.

**Pre-Cal**

find the value of the function k(p/q)

**Pre-cal**

Does the equation x^2+x-12/x+2 have holes?

**Pre-cal**

10.2 can someone show me this graph(x+2)^2/4+(y+2)^2/15=1

**Pre cal**

Sec^2x=2 With 10 different answers

**pre-cal**

solve the equation algebraically. 7e^x=11-e^-x

**pre-cal**

Find the real zeros of f (x)= 2x^3 + 2x^3 – 8x + 3

**pre-cal**

Find the real zeros of f (x)= 2x^3 + 3x^2 – 8x + 3

**pre-cal**

find the distance d (P1 P2) between the P1 and P2 P1=(-1,1);P2=(1,2)

**Pre Cal**

What is the phase shift of F(x) = 3 sin (2x - 2)?

**Pre-cal**

f(x)= x+1 and g(x)= square root of x-3 please help me!

**Pre-Cal.**

write f(x) in factored form.

**pre cal**

Solve G(x) for the given domain. G(x) = 3x 2 - 2x - 1 G(6) =

**pre cal**

Find the inverse of the function. f(x) = x3 + 8

**Simple pre cal**

Is the relation a function? {(14, 9), (15, 8), (8, 7), (1, 9), (15, 2)}

**Pre-cal**

What is the area of triangle ABC if a = 19, b = 14, and c = 23?

**pre-cal**

How do you work inverse functions alebraically?

**Pre-Cal**

FIND A POWER WHOSE SUM IS: (a) 5 / (1-3x) (b) 9 / (1-4x) (c) 6 / (2-4x)

**pre-cal**

what are the steps to solve sec y sin (pi/2-y)=1

**Pre-Cal**

how do we put x^2-2y^2=4 into a standard equation???

**Pre cal**

Find the area of a triangle with sides of 12, 14 and 20

**pre cal**

convert the point to polar coordinates: (12,-12)