I need help with this question please! Thank you! Mathematics Assignment Help. I need help with this question please! Thank you! Mathematics Assignment Help.

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For each of the following, indicate whether the expected

relationship between the two variables will be positive (+), negative (-), or

zero:

a.

size of house and size of electric bill

b.

height of parents and height of children

c.

air

humidity level and people’s energy level

d.

number of books read per year and age at which

got first eyeglasses

e.

hours spent at the beach and depth of tan

I need help with this question please! Thank you! Mathematics Assignment Help[supanova_question]

## Mercury is poured into a U-tube as shown in Figure a. The left arm of the tube h Science Assignment Help

Mercury is poured into a U-tube as shown in Figure a. The left arm of the tube has cross-sectional area *A*_{1} of 10.9 cm^{2}, and the right arm has a cross-sectional area *A*_{2} of 4.70 cm^{2}. Two hundred grams of water are then poured into the right arm as shown in Figure b.

cm

(b) Given that the density of mercury is 13.6 g/cm^{3}, what distance *h* does the mercury rise in the left arm?

cm

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## The four tires of an automobile are inflated to a gauge pressure of 1.7 105 Pa. Science Assignment Help

The four tires of an automobile are inflated to a gauge pressure of 1.7 10^{5} Pa. Each tire has an area of 0.020 m^{2} in contact with the ground. Determine the weight of the automobile.

N

[supanova_question]

## Mercury is poured into a U-tube as shown in Figure a. The left arm of the tube h Science Assignment Help

Mercury is poured into a U-tube as shown in Figure a. The left arm of the tube has cross-sectional area *A*_{1} of 10.9 cm^{2}, and the right arm has a cross-sectional area *A*_{2} of 4.70 cm^{2}. Two hundred grams of water are then poured into the right arm as shown in Figure b.

cm

(b) Given that the density of mercury is 13.6 g/cm^{3}, what distance *h* does the mercury rise in the left arm?

[supanova_question]

## A light rod of length ℓ = 1.00 m rotates about an axis perpendicular to its leng Science Assignment Help

(a) Neglecting the mass of the rod, what is the system’s kinetic energy when its angular speed is 2.20 rad/s?

Your response differs from the correct answer by more than 10%. Double check your calculations. J

(b) Repeat the problem, assuming the mass of the rod is taken to be 2.30 kg.

Your response differs from the correct answer by more than 100%. J

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## confidence levels with a mean Mathematics Assignment Help

How many people must be surveyed to estimate 90% confidence for the mean, if the standard deviation is known to be 21.0 and the allowable margin of error is 5?

What I have so far is:

1/2(1-0.90)=0.05 Z= 1.645

(1.645*21.0/5)^2= 47.73

Is that right?

confidence levels with a mean Mathematics Assignment Help[supanova_question]

## Math question Help Needed Business Finance Assignment Help

What is the effective interest rate of 4% compounded

quarterly?

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## Math question Help Needed Business Finance Assignment Help

$1200 is deposited today into an account paying 6%

interest compounded semiannually. How much will have been earned after 25

years?

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## Design Theory for Relational Database Computer Science Assignment Help

Consider a

relation with schema R(A, B, C, D) and FD’s

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## Math question Help Needed Business Finance Assignment Help

Your current investment will mature in 2 years for

$30,000, at which time you will reinvest the funds for 10 more years at 7% per

year. What will be the value of your investment at the end of the 12^{th}

year?

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I need help with this question please! Thank you! Mathematics Assignment Help

I need help with this question please! Thank you! Mathematics Assignment Help