All categories

3 years ago

Help with this math problem, please!!

Mathematics

1 answer:

VMariaS [17]3 years ago

3 0

Answer:

Step-by-step explanation:

that is hard

You might be interested in

The formula V=arh gives the volume of a cylinder with radius r and height h. Find the volume of a cylinder with radius (x + 4) c

marishachu [46]

Answer:

V = a (x + 4)*5 but see below.

Step-by-step explanation:

You're not going to get any kind of answer that gives V = 122 or some other pure number.

Formula

V = arh

Givens

a = pi * r

r = (x + 4)

h = 5cm

Solution

V = a * (x + 4)*5

V = pi * (x + 4)^2 * 5

There is no indication of which one to choose.

6 0

3 years ago

1. f(x) = (x + 2)2 - 3

Advocard [28]

Answer:

asking

Step-by-step explanation:

stop

5 0

3 years ago

In a group of 40 people, 35% have never been abroad. Two people are selected at random without replacement and are asked about t

Alisiya [41]

Answer:

$\frac{7}{60}$

Step-by-step explanation:

Given that in a group of 40 people, 35% have never been abroad. Two people are selected at random without replacement and are asked about their past travel experience.

Since the two are drawn without replacement the first trial affects the second trial. In other words, each trial is not independent of the other.

a) Hence this cannot be binomial experiment. The reason is p=probability for each trial is not constant as first draw affect the probability for Ii draw

b) The probability that in a random sample of 2, no one has been abroad

=Prob of selecting both people from the group where no one has been abroad

We have in the group 35% i.e. 14 people never been to abroad

So required probability = Prob of selecting both from 14 people

= $\frac{14C2}{40C2} \\=\frac{14*13}{40*39} \\=\frac{7}{60}$

3 0

3 years ago

Write an explicit formula for An, the nth term of the sequence 4, -20, 100, ...

UkoKoshka [18]

Answer:

oop

Step-by-step explanation:

5 0

3 years ago

Suppose the scale factor you will use to enlarge the map is 5:1. What is the approximate area of the park in your enlarged drawi

slamgirl [31]

Answer:

525

Step-by-step explanation:

If the area of the map is 21 and the scale factor is 5:1, both of the dimensions of the flat park are multiplied by 5. If both dimensions are multiplied by 5, then the area is multiplied by (5*5)=25 times. 25*21=525. Hope this helps!

4 0

3 years ago