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3 years ago

Please answer the question quickly

Mathematics

1 answer:

Zina [86]3 years ago

6 0

Answer:

Step-by-step explanation:

You can already knock out the first two because you cant have negative feet. If you line the vertex (1) with the parabola, you can see that the vertex lines up with 16. You round that up and your answer should be 20

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Y = x^5 sin (2x) cos (4x)<br>find the derivative

Oksi-84 [34.3K]

Y = x⁵ sin(2x ) cos(4x)

y' = d/dx (x⁵ sin (2x) × cos (4x) + x⁵ sin(2x) ). ×
d/dx (cos(4x) )

y' = 5x⁴ sin(2x) cos(4x)+2x⁵ cos(2x) cos(4x) -4x⁵ sin(2x) sin(4x)

8 0

3 years ago

Is the distribution of all values of the statistic when all possible samples of the same size n are taken from the same populati

olganol [36]

The distribution of the values obtained from a simple random sample of size n from the same population is incorrect.

<h3>What is sampling distribution?</h3>

The sampling distribution of a statistic of size n is the distribution of the values obtained from a simple random sample of size n from the same population.

The sampling distribution is the process of getting a sample through simple random techniques from the sample population.

So, it is incorrect that the distribution of all values of the statistic when all possible samples of the same size n are taken from the same population.

Learn more about sampling distribution here:

brainly.com/question/3663642

#SPJ1

8 0

2 years ago

Daniel answered 16 questions correctly, left 5 blank and had 4 wrong answers. He also got 8 out of 10 possible points for extra

Varvara68 [4.7K]

Answer:

use your brain dummy!

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

The temperature at a mountain base camp was −2 degrees Celsius on Thursday. Friday morning, the temperature was 1 degree Celsius

sattari [20]

Start: -2
1 degree lower: -3
3 degree lower: -6

7 0

3 years ago

Read 2 more answers

Can someone please help with these 2 word problems ASAP.

PolarNik [594]

Answer:

4. 4.66hours

5. time_trip = 2.777 h

Step-by-step explanation:

4. A jet plane travels 2 times the speed of a commercial airplane. The distance between Vancouver and Regina is 1730 km. If the flight from Vancouver to Regina on a commercial airplane takes 140 minutes longer than a jet plane, what is the time of a commercial plane ride of this route?

We know that

Speed_commercial = distance/ time_comm

Speed_commercial = 1730 km/ time_comm

Then,

Speed_jet = distance/ time_jet = 2*Speed_commercial

Speed_jet = 1730 km/ time_jet = 2*Speed_commercial

time_comm = 2.333 h + time_jet

1730 km/ time_jet = 2*1730 km/ time_comm

time_comm = 2*time_jet

time_comm = 2*(time_comm - 2.333h)

time_comm = (2*time_comm - 4.666h)

time_comm = 4.666 h

5. A man goes fishing in a river and wants to know how long it will take him to get 10km upstream to his favourite fishing location. The speed of the current is 3 km/hr and it takes his boat twice as long to go 3km upstream as is does to go 4km downstream. How long will it take his boat to get to his fishing spot?

Distance = 10 km upstream

Speed_current = 3 km/h

Upstream

(Speed_boat - Speed_current) = 3 km / (2*time_downstream)

Downstream

(Speed_boat + Speed_current) = 4 km / (time_downstream)

We subtract both equations

(Speed_boat + Speed_current) - (Speed_boat - Speed_current) = 4 km / (time_downstream) - 3 km / (2*time_downstream)

2*Speed_current = (5/2 km)/ time_downstream

2*(3 km/h)= (5/2 km)/ time_downstream

time_downstream = 0.416 h

(Speed_boat + 3km/h) = 4 km / (0.416 h)

Speed_boat = 6.6 km/h

Trip upstream

(Speed_boat - Speed_current) = 10 km / (time_trip)

time_trip = 10 km/(3.6 km/h) = 2.777 h

time_trip = 2.777 h

3 0

3 years ago