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Naily [24]
3 years ago
14

Pls help me REALY unrgent

Mathematics
2 answers:
NISA [10]3 years ago
7 0

Answer:

269 \frac{1}{4}

Step-by-step explanation:

the solution is found above in the diagram.

Andrews [41]3 years ago
7 0
265 1/2 km

We know the train is going 70 4/5 miles per hour, so to find how far it goes in 3 3/4 hours we multiply 70 4/5 by 3 3/4 and get 265.5 km traveled in 3 3/4 hours.

Hope this helps! Please make me the brainliest, it’s not necessary but appreciated, I put a lot of effort and research into my answers. Have a good day, stay safe and stay healthy.
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At 0°C, the volume of a gas is 22 liters. For each degree the temperature T (in degrees Celsius) increases, the volume V (in lit
liubo4ka [24]
At T=0^{\circ}C, the volume of the gas is V=22 L.

At temperature T=1C, the volume of the gas is (22+225) L.

This means that if we increase the temperature by k degrees:
T=k^{\circ}C
the volume of the gas is 
V=22 + 225 k [L] (1)

Since T=k, we can rewrite eq.(1) as
V= 22 + 225 T [L]
which gives the expression for the volume of the gas in liters, as a function of the temperature T in Celsius.
6 0
3 years ago
A silo (base not included ) is to be constructed in the form of a cylinder surmounted by a hemisphere. The cost of construction
DENIUS [597]

We are given the equation:

C = (16,000 / r) + (26πr^2 / 3)

<span>First get the 1st derivative:</span>

dC/dr = (-16,000 / r^2) + (52π r / 3)

Equate dC/dr to get the minima:

(-16,000 / r^2) + (52π r / 3) = 0

Multiply everything by r^2:

-16,000 + (52π/3) r^3 = 0

r = 6.65

 

Therefore the cost at radius = 6.65 is:

C = (16,000 / 6.65) + (26π (6.65)^2 / 3)

C = 3,610.07


So perhaps the interval interest is (0, 3,610.07] if cost or (0, 6.65] if based on radius.

4 0
3 years ago
What is equal to the math equation 5x - 9x + 2x + 2x + 11 ?
kari74 [83]

Answer:

11

Step-by-step explanation:

5x - 9x + 2x + 2x = 0x

0 + 11 = 11

8 0
3 years ago
Sara and Sam are each working on a science project in which they need to research the individual masses of the nine planets (inc
makkiz [27]

Answer:

2000 times

Step-by-step explanation:

Given

Sara:

Mercury = 3.302 * 10^{23

Saturn = 5.685 * 10^{26

Sam:

Mercury = 3.302 * 10^{29

Saturn = 5.685 * 10^{32

To determine the number of times, the mass of Saturn is greater than the mass of Mercury, we simply do the following:

Times = \frac{Saturn}{Mercury}

Using Sara's measurement; this gives:

Times = \frac{5.685 * 10^{26}}{3.302 * 10^{23}}

Apply law of indices

Times = \frac{5.685 * 10^{26-23}}{3.302}

Times = \frac{5.685 * 10^3}{3.302}

Times = 5.685/3.302 * 10^3

Times = 1.72 * 10^3

Approximate

Times = 2 * 10^3

Times = 2000

5 0
3 years ago
Select all the correct answers.
andreev551 [17]

Answer: i believe the answers are A and C

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
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