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lisov135 [29]
3 years ago
9

Evaluate the functions​

Mathematics
1 answer:
Anna11 [10]3 years ago
6 0

Answer:

(btw the first question answer is -4, not 0)

10

Step-by-step explanation:

(btw the first question answer is -4, not 0)

So to solve the 2nd equation you substitute t with 30

so 30-2/3*30

30-20=10

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Which is the best estimate to the nearest one percent of startfraction 7 over 15 endfraction?
ipn [44]

The best estimate to the nearest one percent of the fraction; 7/15 is; 47%.

<h3>What is the best estimate of the fraction to the nearest percent?</h3>

From the task content, it follows that the fraction given whose estimate is to be determined is; 7/15.

The fraction expressed as a percentage is;

(7/15) × 100 %

= 46.667%.

Hence, when rounded to the nearest one percent; = 47%.

Read more on percentage;

brainly.com/question/843074

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4 0
2 years ago
An engineer is going to redesign an ejection seat for an airplane. the seat was designed for pilots weighing between 130lb and 1
Vlad [161]

Answer: 0.4758

Step-by-step explanation:

Given : Mean : \mu=137\text{ lb}

Standard deviation : \sigma =28.9\text{ lb}

Also, the new population of pilots has normally distributed .

The formula to calculate the z-score :-

z=\dfrac{x-\mu}{\sigma}

For x=130 lb .

z=\dfrac{130-137}{28.9}=-0.2422145\approx-0.24

For x=171lb.

z=\dfrac{171-137}{28.9}=1.1764705\approx1.18

The p-value =P(-0.24

=0.8809999-0.4051651=0.4758348\approx0.4758348\approx0.4758

Hence, the required probability : 0.4758

6 0
3 years ago
Can someone help me ASAP
Vlad [161]

X=10 that how u would get the 12 and the 2

3 0
3 years ago
Plants The world's largest flower, the Giant Raffesia is 91 centemeters in diameter. Use a calculator to find the circumference
Kamila [148]
We know that
circumference=pi*D
where 
D is the diameter
D=91 cm
so
pi-----> is the value of the calculator------> 3.1415926535897932
circumference=pi*91------> 285.88 cm------> 285.9 cm

the answer is
285.9 cm
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3 years ago
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uranmaximum [27]

Answer:

543.4 liters

Step-by-step explanation:

The conversion 1 gallon is 3.8 liters can be used as the rate.

To convert gallons into liters, multiply the numbers of gallons by the rate, 3.8.

143 gallons X 3.8 = 543.4 liters

Therefore 143 gallons is 543.4 liters.

4 0
3 years ago
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