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3 years ago

ANSWER CORRECTLY ASAP

Mathematics

1 answer:

Ilia_Sergeevich [38]3 years ago

8 0

ANSWER CORRECTLY ASAP 

ANSWER CORRECTLY ASAP 1. An automobile tire has a pressure of 210.0 kPa at 20.0oC. What will be the tire pressure after diving, if the tire temperature rises to 35.0oC? (221 kPa)

ANSWER CORRECTLY ASAP 1. An automobile tire has a pressure of 210.0 kPa at 20.0oC. What will be the tire pressure after diving, if the tire temperature rises to 35.0oC? (221 kPa)2. If a sample of gas has a volume of 355 mL at 44.1oC and 87.2 kPa, what will its volume be at STP? (263 mL)3. A tank of compressed gas has a maximum safe pressure limit of 826 kPa. The pressure gauge reads 388 kPa when the temperature is 24.1oC. What is the highest temperature the tank can withstand safely? (632 K)4. A gas occupies a volume of 560 cm3 at a temperature of 120.0oC. To what temperature must the gas be lowered, if it is to occupy 400.0 cm3? Assume a constant pressure.

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In 1980, wind turbines in Europe generated about 5 gigawatt-hours of energy. Over the next 15 years, the amount of energy increa

sammy [17]

9514 1404 393

Answer:

1a. E = 5×1.59^t

1b. 32 GWh

1c. 1986

Step-by-step explanation:

1a. An exponential model looks like

f(t) = a·b^t

where 'a' is the value when t=0, and 'b' is the growth factor in the time period associated with t.

Here, 'a' is 5 (GWh), and 'b' is 1+59% = 1.59. Then the desired model is ...

E = 5·1.59^t . . . . . where t is years after 1980, and E is in GWh.

1b. For t=4, we have ...

E = 5·1.59^4 ≈ 31.96 ≈ 32

About 32 GWh was generated in 1984.

1c. The value of t for a given value of E is ...

E/5 = 1.59^t . . . . divide by 5

log(E/5) = t·log(1.59) . . . . take logarithms

t = log(E/5)/log(1.59) . . . . divide by the coefficient of t

For E = 80, the years after 1980 are ...

t = log(80/5)/log(1.59) ≈ 5.98

About 80 GWh were generated in 1986.

4 0

3 years ago

H(x)=(x+5)^2 if we solve h(x)=36

Ivan

Answer:

x = - 11

Step-by-step explanation:

Solving

(x + 5)² = 36 ( take square root of both sides )

x + 5 = ± $\sqrt{36}$ = ± 6 ( subtract 5 from both sides )

x = - 5 ± 6

Then

x = - 5 + 6 = 1

x = - 5 - 6 = - 11

The other solution is x = - 11

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3 years ago

March 21, the 80th day of the year, is the spring equinox. find the number of hours of daylight in fairbanks on this day

pentagon [3]

According to a daylight calculator for Fairbanks, AK, sun rises at 07:40 and sun sets at 20:12, giving 12 hours and 32 minutes of daylight.

Note that it is not a mistake that daylight is not exactly 12 hours on that day due to refraction of the sun's rays at sunrise and sunset.

At Fairbanks, near equality to 12 hours occurs on March 16 with sunrise at 07:58 and sunset at 19:57.

3 0

3 years ago

Hii please help i’ll give brainliest if you give a correct answer!

Vika [28.1K]

Answer:

8 and 1/4 cups sugar is your answer. In 5 and 1/3 cups is 8 and 1/4 cups sugar.

Step-by-step explanation:

Brainly please hope this is correct please tell me if I wrong.

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3 years ago

Solve: 2a - b = ac + 3b for a

Greeley [361]

Answer:

a/ac + 2b

Step-by-step explanation:

2a - b = ac + 3b

2a = ac +4b

2a/ac+4b = a/ac + 2b

8 0

3 years ago