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RideAnS [48]
3 years ago
11

A scientist observes the population of two animals in the lake. The number of Animal A, A(t), is increasing over time. The numbe

r of Animal B, B(t), is decreasing over time. Drag each statement to show whether it is true, not true, or if it cannot be determined from the given information.
The number of Animal A is increasing at a faster rate than the number of Animal B is decreasing.

There is always more of Animal A than Animal B in the lake at any point in time.

The total number of animals is always the same over time.
Mathematics
2 answers:
aniked [119]3 years ago
3 0
1. can't be determined cause no info given on the rate of which the population is growing.
2. can't be determined/not true because the initial population of a could be less than b.
3. can't be determined/not true because we don't have enough info to tell how fast they grow and decline.
Damm [24]3 years ago
3 0

Answer:

  • The number of Animal A is increasing at a faster rate than the number of Animal B is decreasing  ( cannot be determined )
  • There is always more of Animal A than Animal B in the lake at any point in time  ( True )
  • The total number of animals is always the same over time ( false/not true)

Step-by-step explanation:

The animals in the lake are grouped as Animal A and animal B, from the question it is observed that Animal A continues to increases over a given time and Animal B  continues decreasing over the same given time

The rate at which each Animal is either decreasing or increasing over the same time period of (t) was not given so statement one(1) cannot be determined due to lack of complete information.

there will always be more Animal A than Animal B as long as Animal keep increasing and Animal B keep decreasing over time.

the total number of animals in the lake cannot be the same overtime because there is a decrease and increase in number of the animals over time.  

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An airplane needs to head due north, but there is a wind blowing from the northeast at 50 km/hr. The plane flies at an airspeed
laiz [17]

Answer:\theta =2.415^{\circ}

Step-by-step explanation:

Using vector method to solve it

Resultant can be given by

R^2=700^2+40^2+2\times 700\times 40cos135

R^2=450,408

R=671.12 Km/hr

The angle made by resultant with 700 km/hr is \theta

using sine rule

\frac{40}{sin\theat }=\frac{R}{sin45}

sin\theta =0.0421509

\theta =2.415^{\circ}

8 0
3 years ago
Can somebody please help with these two questions?
Nitella [24]

Answer:

#3: x is approximately 0.37, -5.37, #4: x is approximately 4.19, -1.19

Step-by-step explanation:

You can solve using the quadratic equation or by solving with the perfect square

\frac{-b+/-\sqrt{b^{2}-4ac} }{2a} = x^{2}+5x-2=0\\ \frac{-5+/-\sqrt{5^{2}-4(1)(-2) }}{2(1)}

x is approximately 0.37, -5.37

6 0
3 years ago
A B C or D help fast please!!!!
vodka [1.7K]

Answer:

c I just saw ur question sorry if I too late

4 0
4 years ago
Which of the following pairs of numbers contains like fractions? A. 5⁄6 and 10⁄12 B. 3⁄2 and 2⁄3 C. 3 1⁄2 and 4 4⁄4 D. 6⁄7 and 1
ElenaW [278]
<h2>Hello!</h2>

The answers are:

A.

\frac{5}{6} and \frac{10}{12}

D.

\frac{6}{7} and 1\frac{5}{7}

<h2>Why?</h2>

To find which of the following pairs of numbers contains like fractions, we must remember that like fractions are the fractions that share the same denominator.

We are given two fractions that are like fractions. Those fractions are:

Option A.

\frac{5}{6} and \frac{10}{12}

We have that:

\frac{10}{12}=\frac{5}{6}

So, we have that the pairs of numbers

\frac{5}{6}

and

\frac{5}{6}

Share the same denominator, which is equal to 6, so, the pairs of numbers contains like fractions.

Option D.

\frac{6}{7} and 1\frac{5}{7}

We have that:

1\frac{5}{7}=1+\frac{5}{7}=\frac{7+5}{7}=\frac{12}{7}

So, we have that the pair of numbers

\frac{6}{7}

and

\frac{12}{7}

Share the same denominator, which is equal to 7, so, the pairs of numbers constains like fractions.

Also, we have that the other given options are not like fractions since both pairs of numbers do not share the same denominator.

The other options are:

\frac{3}{2},\frac{2}{3}

and

3\frac{1}{2},4\frac{4}{4}

We can see that both pairs of numbers do not share the same denominator so, they do not contain like fractions.

Hence, the answers are:

A.

\frac{5}{6} and \frac{10}{12}

D.

\frac{6}{7} and 1\frac{5}{7}

Have a nice day!

3 0
3 years ago
What is the distance from point E to point D?
Mandarinka [93]

Answer:

6 units

Step-by-step explanation:

could each square from E to D

6 0
3 years ago
Read 2 more answers
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