3 years ago

Hello, i need help with this question

Mathematics

1 answer:

Natali [406]3 years ago

4 0

Answer:

Step-by-step explanation:

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Suppose the scientist performs an experiment in which she cools the three gases. Will the changes in temperature be positive or

Annette [7]

In this experiment, the scientist cools the gases. This means that she decreases the temperature of the gases.
Based on this, the changes in the temperature will be negative for this experiment to indicate that the gases are losing energy (heat energy).

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4 years ago

After taxes, Olive brings home $2800 per month. She has decided that she would like to set aside 15% of her income for savings.

sashaice [31]

Answer:

420

Step-by-step explanation:

15%= 0.15

2800*0.15= 420

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3 years ago

The semiannual tuition payment at a major university is expected to be $30,000 for the 4 years beginning 18 years from now. What

elena-14-01-66 [18.8K]

Answer:

$49,216.78

Step-by-step explanation:

A(n,k) = R[1-(1+i)^-n / i) (1+i)^-k

A = Present value of deferred annuity

R = Payment at the end of period

R = 30,000

i = 0.06 / 2

n = (4)*2 = 8

k = deferred period, (18)*(2) = 36

A(n,k) = 30,000*(1-(1+0.04)-^8 / 0.04)*(1+0.04)^-36

A(n,k) = 30,000*(1-(1.04)^-8 / 0.04)*(1.04)^-36

A(n,k) = 30,000*(1 - 0.730690205/0.04) * 0.24366872185

A(n,k) = 30,000*(0.269309795 / 0.04)*0.24366872185

A(n,k) = 30,000*6.732744875*0.24366872185

A(n,k) = 49216.78014700164

A(n,k) = $49,216.78

So the lump sum payment that the university accept now is $49,216.78

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3 years ago

Rex, Lassie, and Beethoven eat their dog foods at different rates, though each gets the same amount. Rex can finish his bowl in

sergij07 [2.7K]

So in the answer here beethoven ate 10000

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3 years ago

Find the coordinates of d if e is the midpoint of CD for C(-3, 4) and E(0, 1).

Yanka [14]

Answer:

D(3;-2).

Step-by-step explanation:

1) $X_D=2*X_E-X_C;\\Y_D=2*Y_E-X_C.$

2) according to the formulas above:

$X_D=2*0+3=3;\\Y_D=2*1-4=-2.$

3) finally, D(3;-2).

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3 years ago