Answers by visitors named: Mac

How many people are in the labor force and what is the unemployment rate?

A. aggregate supply to fall according to classical economists, and prices to fall according to Keynes. B. prices to fall and unemployment to increase according to both classical economists and Keynes. C. prices to fall according to classical economists, and unemployment to increase according to Keynes. D. aggregate supply to fall according to Keynes, and unemployment to increase according to classical economists.

I understand Dr. Maurice hire a new nurse. What is his or her name?

I do believe that Van Hoff = 4 Kf(water) = 1.86 Molality = .0091 4*1.86*0.0091=delta T=.067704 0.00-.067704=-0.0677 degrees C is the answer on Millers quiz

Current area = 200m2 [10m x 20m] New area = 400m2 [10y x 20y] So, 400 = 200y2 So, y2= 2 So, y = 1.41 So, each side must be increased by a factor 0f 1.41 times. I this correct or do they mean add the same length to each side?

the answer is -log(10.6) dont forget the negative no, it doesn't make any sense to me, but i just did that same problem and that was the right answer

BBCDA

45.03756158

Slope of the given line is 2 , therefore the slope of the perpendicular line is -(1/2) Use your point slope equation y -y =m(x - x) Y - 4 = -(1/2)(x - 3) 2(y - 4) = -1(x - 3). You are looking a proportion and cross multiplying 2y - 8 = -1x + 3 2y. =. -1x + 11 y. = -(1/2)x + (11/2)

Use your slope formula (-1 - 2.5) / (-.5 - 3) = -3.5/-3.5 = 1 Pick a point, does not matter which one, will get the same answer and use your point slope equation y - 2.5 = 1(x - 3) y = x - .5 y = x - (1/2)

C = 24D + .75M C = 24(7) + .75(463) C = 168 + 347.25 C= 515.25

19). 4sin^2x/cos^2x - cos^2x/cos^2x 4(1-cos^2x) - cos^2x. All over cos^2x 4 - 4cos^2x - cos^2x. All over cos^2x 4 - 5cos^2x. All over cos^2x 4/cos^2x - 5

20). Sin^2x - sin x / cos x (1-cos^2x)cos x - sin x. All over cos x Cos x - cos^3x - sin x. All over cos x

21). Factor the numerator and the denominator (Sin x - 3)(sin x - 3) / (sin x - 3)(sin x + 3)

17). Multiply numerator and denominator by Sin x + 1 The numerator ( sin x + 1)(sin x -1) = sin ^2x -1 = -1(1 - sin^2x) = -cos^2x

18). Factor perfect square ( sin ^2x + cos^2x)^2 = 1^2=1

Cos (cos/sin)= cos^2/sin = (1 - sin^2x)/sin 1/sin sin^2/sin = csc x sin x

It is the definition of a parallelogram

(50 miles x 5280 feet x 1 hour x 1 minute) / (1 hour x 1 mile x 60 minutes x 60 seconds)= 73 feet per second

Flip it X^2/ (3/2)

Equation of a line that divides the first and third quadrants in half Being 6 th grade it could be the beginning of function If x = 1 , then y = 1 If x= 2 , then y = 2

Not sure what you are asking for There is only one point (0,0) that contains all 5 circles

5+25+5 30+5 35

. 88(150)+.94(150)+.90(150)+x(250)=.93(700) 132+141+135+x(250)=651 408+x(250)=651 x(250)=243 x=.972 Or you need 243points to earn a 97.2 percent

11) correct 12) correct 13) correct 14) correct 15) if it is 15% off ,then the sale price is 100 -15 or 85% If it is 25% off, the sale price is 75% 16) your are asking for the FINAL balance not finding the interest

17) .07 times 22.00 will give you the amount of tax on the shirt That should get you going 18) difference / start 2000 to 2001. Would be (3640-3250)/3250 or 12% That should get you going

16) you are given 730...so add the interest to it 15) correct

It is difference divided by start So now you need to take the 390 and divide by 3250 And take the 450 and divide by 3640 390 and 450 are the amount of increase not the percent of increase

Trapezoid

-(-1)+6 =1+6

20 - input 20 - 0=20 20 - 2=18 20 - 4 =16 f(n)=20-n

.12 or 12% .126 or 12.6%

Yes

Factor What factors multiply to equal 56 and subtract to equal 1?

if your zeros are 5and8, then you say: X=5 and x=8 x-5=0 and x-8=0 (X-5)(x-8)=0

Yes (X-7)(x+8) Check by foiling X^2 +8x -7x -56 X^2 +x -56

Get a common denominator If you have a/6 and b/6 and c/6, then a:b:c would be the ratio and a+b+c=6

It does not matter how large your numbers are,just follow the pattern

Looks fine to me d/dx sec x = (sec x tan x)(der of x)

I would use 2x as the with and have the radius of the circle be x. Your h would equal (1/2)(52-2x-3.14x) I think the x and h should be closer The closer the numbers, the max the area

Yes you factor 3k(k-5)(k+3) and your check says you did it correctly Now to find the zeros Set each factor = 0. And solve 3k=0. K=0 K-5=0. K=5 K+3=0. K=-3

Find the der of f(x) Then substitute 2 into the der of f(x)

Q = 11 + D 25Q + 10D = 765

3+(x+y)

40(base)=(1/2)(base)(height) 80(base)=(base)(height) Divide by base and they both drop out 80=height

Tan78.2=h/x. h=x(tan78.2) Tan17.6=h/(x+10). h=(x+10)(tan17.6) Need to solve for x and then go back for your height.

40625/100000 Reduce 40625=5^5 times 13 100000=5^5 times 2^5

8x+5y=200 X=length of one rectangle Y=width of one rectangle Area = xy Y= (200-8x)/5 Area=x (200-8x)/5 Hope this gets you going

You will get the same answer The extra would be putting your answer in lowest terms 6/9 + 4/9 = 10/9 12/18 + 8/18= 20/18 = 10/9

Parallel means same slope M=-1/3 Point(-4,3) Plug into y=mx+b and find b 3=(-1/3)(-4)+b You should be able to finish from there

Find f(1) and f(2) Find the slope f(1) - f(2) / 1 - 2 Write your equation Rate of change = slope

C= 3a 3c + 7a = 46000

D=4n-1 (1/3)less than (n/d) less than (1/5) (1/3) less than(n/(4n-1)) less than (1/5) Solve the between statement

6y-6 Distributive property

Tan32=h/x Tan22=h/(x+80) (Tan32)(x)=(tan22)(x+80) Solve for x and then for h

This graph is a v shape with vertex at (0,0) with a ray in the first quad with slope 1 and a ray in the second quad with slope -1 The +1 sends this graph up one It does not change the curve. The -flip the v downward The 3 changes the curve. Instead of the slope begin +/- 1, it is now +/- 3 Hope this will help you

-7(3)^(6-1) Or -7, -7(3), -7(3)(3), -7(3)(3)(3), -7(3)(3)(3)(3), -7(3)(3)(3)(3)(3)

(X)+(3x)+(5x)=27

8-3(21/8)

Distance is equal to rate times time Therefore time is equal to distance divided by rate. 1586/39= 40 2/3 hours That means it takes 40 2/3 hours to go 1586 km when you are going 39 km per hour So if you start at 10:30 and go for 40 and 2/3 hours, which is 40 hours and 40 mins Start with the 40 mins that would take you to 11:10am Now 40 hours is 4 hours less than 48 hours which is 2 days... So you are 4 hours short of 11:10am on Thursday ....so I get 6:10am

Khan , I think your units are off 40.6666 .... Hours The rate is km per hour 1586 km / ( 39 km/1hour) = 1586 km x (1 hour/ 39 km) Km drops and your left with hours Not sure where the days come in except 40 hours is short of 2 days

X=width X+4= length X(x+4)=60 You will be factoring

You first have to find your rate .75 = e^ (r)(10) Then find the time for half- life .5 = e^ (r from above)(t)

In a rectangle diagonals are equal Set the two equal to each other and solve

1 correct 2 correct 3 correct 4 correct

Mid segment=1/2 the sum of the bases LM=(1/2)(46+125)

That is what I get

6x+16=49 6x=49-16=33 X=33/6=5.5

Rate of change is 2 because you have a line the rate of change (slope) is constant

A). (7x+ 4)/(7x-8) Domain is all except x can not equal 8/7 because it will make the denominator equal to 0 B). ( 5x + 4)/ 2x Domain all except x can not equal 0

5000(1+ .055/2)^(2)(5)

U-shape turned downward and moved to the left 2 units Inside the() moves left or right opposite the sign Outside the () moves up or down same as the sign The negative flips the curve

Venn diagram 256-78-116

Use your rules of logs Log a^(1/3) - log b^3 Log (a^(1/3)) / (b^3)

A) .98(210) and .98(240) B) (210)(240) (.98)(210)(.98)(240) Percent decrease = diff in your two answer/ original (210)(240)

Tan30= h/p Tan45=h/q p + q= 100 Use substitution (h/tan30) + (h/ tan45 )= 100 You should be able to take over

Point of inflection I agree with you

Venn diagram problem I phone only. 70 Cars only. 10 Both. 60 Neither 60 Total 200 Hope this will help you

Permutation You have 210 objects taken 1 at a time

A) log 6a / log 6a B)5(log 9b/ log 9b) B should help you with C

Group two by two X^2(x-3)+16(x-3) (X-3)(x^2+16) For zeros X-3=0 X=3 X^2+16=0 X^2=-16 X=+or- 4i

Get you started you have to start by guessing X=3 works Then do long division Answer will be x^2+12x+36 Factor (X+6)(x+6) 3and -6 are your critical values Now you have to test the different regions

Venn diagram problem P only=33-18-x B only =26-17-x C only =25-19-x 15-x+9-x+6-x+8+10+9+x=63 -2x=63 X=-3 Which means you have to work with 3 in the middle

Just pick a number in the region Plug back into the function Neg ans means less than 0 Pos ans means greater than 0

Thanks. Also noted that V2 would only be 275 as once the pressure in the bottle reaches 1atm, the volume inside would be 25litres. So only 275litres are available.

The wavelengths are shorter in this region

well i've only got what my paper gives me. but i'd assume it is talking about chinese, considering those were the main asian immigrants at the time

or maybe japanese, since that's in one of the answers

R=(G*mp*T^2/(4*pi^2))^(1/3) Vesc=sqrt(2*mp*G/R)

195

390 is for a deccelaration of 4 and not of 7.the right answer is 195

(a) Set up two equations. One for forces, one for torques. For the first equation, which way does friction act? i.e. which way would the yoyo move if there was slip? Since there is no slip, friction must be acting *against* the intended direction of motion. For the second equation, you have two forces acting at two radii, so two torques. Pick a direction (CW or CCW) and designate it as +ve (one makes more sense than the other). Your first equation relates to the *linear* (translational) motion, in terms of the applied force, friction, the linear acceleration and mass. Your second equation relates to the rotational motion, in terms of the torques, the moment of inertia, and the angular acceleration. Put these together to eliminate friction. You must also understand that because there is no slip (ie pure roll), the angular acceleration and the linear acceleration have a relationship. This allows you to eliminate angular acceleration. You are left with an expression for acceleration in terms of all the given values. (b) Once you have worked out acceleration, just plug it into one of the two equations you found for part (a). One of these is much easier than the other :-)

Thank you so much for explaining that! I wasn't getting that answer at all, but I do see ho you get it. Thank you again!

Your answer is wrong. You forgot to switch csc into sin, therefore r=3, and s=5. Now we know that tan (T)= 4/3

15,000

He was wearing a football jersey and was talking about yardage gained or lost and what yard line the players ended up on.

3.4

The answer is radical 55 divided by the square root of x. ur wlcom. thx

You could use potassium nitrate to test for potassium because both potassium and nitrate are water soluble. Potassium nitrate will react with the fluoride and create a solid precipitate. Potassium nitrate is water soluble.

8(2x-3)-6x if x=3