Ask question

Ask question

All categories

2 years ago

11

Cory is a bird watch he estimated that 30% of the birds American , 20 % ne eyed , and 20 designs n simulation Let , 1 and 2 repr

esent American robins Let and 4 represent -eyed Let and 6 represent song sparrows Let 78and 9 represent other birds The table shows the simulation results. 05716 16803 965683217733855 76635 922908886472794 14333 0594377510 7405187238 79019 97895 8648794036 1274924005 According to this simulation, what is the probability that at least one of the next five birds he sees is a robin? O A. 0.45 B. 0.6 C. 0.75 D. 0.3

1 answer:

sleet_krkn [62]2 years ago

7 0

Answer:

I believe the answer is C. 0.75

Step-by-step explanation:

You might be interested in

Find the distance between the points (a, 0) and (0, b). StartRoot (a minus b) squared EndRoot StartRoot a squared + b squared En

borishaifa [10]

Answer:

square root of (a^ + b^) or the option b

Step-by-step explanation:

its right on edge 2020

hope this helped :)

5 0

2 years ago

Read 2 more answers

Does the frequency distribution appear to have a normal distribution? Explain. Temperature (degreesF) Frequency 35 dash 39 1

AlexFokin [52]

Answer:

D. Yes, because the frequencies start low, proceed to one or two high frequencies, then decrease to a low frequency, and the distribution is approximately symmetric.

Step-by-step explanation:

Hello!

The given frequency distribution for temperatures.

To see if the distribution appears to have a normal distribution you have to draw a histogram using the information. Check attachment.

As you can see, the distribution appears symmetric, it starts low and proceeds to grow until it reaches its maximum point (f(4)=13) and then starts to decrease to low frequencies. The right tail decreases a little more than the left one but it is almost symmetrical.

I hope this helps!

5 0

2 years ago

Which expression is equivalent to (3−2^2) 5 ? 5−3^2 5−2^2 2^2−5 3^2−5

tamaranim1 [39]

Well (3-2^2)5 = -5
and 5-3^2=-4
5-2^2=1
2^2-5=-1
3^2-5=4
but if you have to multiply them by 5 as well then (2^2-5)5=-5

8 0

2 years ago

Solve step by step solution then only i can do it plxx

Anuta_ua [19.1K]

Answer:

<h3><u>Let's</u><u> </u><u>understand the concept</u><u>:</u><u>-</u></h3>

Here angle B is 90°

So $\triangle ABC$ and $\triangle ABD$ Are right angled triangle

So we use Pythagoras thereon for solution

<h3><u>Required Answer</u><u>:</u><u>-</u></h3>

First in triangle ABC

perpendicular=p=8cm

Hypontenuse =h =10cm

We need to find base=b

According to Pythagoras thereon

${\boxed{\sf b^2=h^2-p^2}}$

Substitutethe values

$\longrightarrow$ $\sf b^2=10^2-p^2$

$\longrightarrow$ $\sf b={\sqrt {10^2-8^2}}$

$\longrightarrow$ $\sf b={\sqrt{100-64}}$

$\longrightarrow$ $\bf b={\sqrt {36}}$

$\longrightarrow$ $\sf b=6$

$\therefore$ $\overline{BC}=6cm$

BD=BC+CD

$\longrightarrow$ $BD=9+6$

$\longrightarrow$ $BD=15cm$

Now in $\triangle ABD$

Perpendicular=p=8cm

Base =b=15cm

We need to find Hypontenuse =AD(x)

According to Pythagoras thereon

${\boxed {\sf h^2=p^2+b^2}}$

Substitute the values

$\longrightarrow$ $\sf h^2=8^2+15^2$

$\longrightarrow$ $\sf h={\sqrt {8^2+15^2}}$

$\longrightarrow$ $\sf h={\sqrt {64+225}}$

$\longrightarrow$ $\sf h={\sqrt {289}}$

$\longrightarrow$ $\sf h=17cm$

$\therefore$ ${\underline{\boxed{\bf x=17cm}}}$

3 0

2 years ago

A circle has a radius of 19 cm. Find the radian measure of the central angle that intercepts an arc of length 4 cm.

Alona [7]

Answer:

1134

Step-by-step explanation:

$\pi \: radius \: 2$

=1134.114948

6 0

2 years ago