All categories

3 years ago

HELP PLEASE WILL MARK BRAINLIST!

Mathematics

2 answers:

enot [183]3 years ago

5 0

Answer:

Step-by-step explanation: If 4 owners have to share the loss equally, then if you do 100 divided by 4 then you get 25

REY [17]3 years ago

3 0

Answer:

Step-by-step explanation:

You might be interested in

Isabella drives at a constant 45 miles per hour is she drives for why miles and it takes her X hours what is the two variable eq

USPshnik [31]

Answer:

Required two variable relation is 45x =y

Step-by-step explanation:

Speed of isabella car is v = 45 miles per hour

now, According to question she takes Y miles( = distance) in X hours (= time)

from The relation of velocity i.e.

velocity = $\frac{distance}{time }$

on substituting the values in the above relation we get,

v = 45 = $\frac{y}{x}$

on further rearranging of terms we get,

$45x$ = y

HENCE, required relation is 45x =y , which is a two variable equation.

6 0

3 years ago

Suppose that each coupon obtained is, independently of what has been previously obtained, equally likely to be any of m differen

Triss [41]

ANSWER:

E[X] ≈ m ln m

STEP-BY-STEP EXPLANATION:

Hint: Let X be the number needed. It is useful to represent X by

X = ∑ Xi

i=1

where each Xi is a geometric random variable

Solution: Assume that there is a sufficiently large number of coupons such that removing a finite number of them does not change the probability that a coupon of a given type is draw. Let X be the number of coupons picked

X = ∑ Xi

i=1

where Xi is the number of coupons picked between drawing the (i − 1)th coupon type and drawing i th coupon type. It should be clear that X1 = 1. Also, for each i:

Xi ∼ geometric $\frac{m - i + 1}{m}$ P r{Xi = n} = $(\frac{i-1}{m}) ^{n-1}$ $\frac{m - i + 1}{m}$

Such a random variable has expectation:

E [Xi ] = $\frac{1}{\frac{m- i + 1}{m} }$ = $\frac{m}{m-i + 1}$

Next we use the fact that the expectation of a sum is the sum of the expectation, thus:

m m m m

E[X] = E ∑ Xi = ∑ E Xi = ∑ $\frac{m}{m-i + 1}$ = m ∑ $\frac{1}{i}$ = mHm

i=1 i=1 i=1 i=1

In the case of large m this takes on the limit:

E[X] ≈ m ln m

4 0

3 years ago

Two angles are complementary. One angle is labeled 2p+6°. The other angles is labeled 4p°. Find the value of p.

makkiz [27]

Answer:

Value of p is 14

Step-by-step explanation:

$given \: complementary \: angles \: add \: up \: to \: 90 \: degrees \\ then \\ 2p + 6 + 4p = 90 \\ 6p + 6 = 90 \\ 6(p + 1) = 90 \\ p + 1 = \frac{90}{6} \\ p + 1 = 15 \\ p = 15 - 1 \\ p = 14$

HAVE A NICE DAY!

THANKS FOR GIVING ME THE OPPORTUNITY TO ANSWER YOUR QUESTION. 

5 0

3 years ago

Katie has been withdrawing the same amount of money from her savings account every month. The table below shows the amount of mo

pochemuha

<h3>Answer: Choice B) $790</h3>

==============================================================

Explanation:

x = number of months

y = account balance

The first column of the table has (x,y) = (8,470) to mean that on month 8, her balance was $470

Then we have (10, 390) meaning x = 10 and y = 39. As x increased by 2, y dropped by 470-390 = 80 dollars. She withdrew $80 over the course of two months. Therefore, she is withdrawing 80/2 = 40 dollars a month. This is the slope value. It represents the rate of change. We could use the slope formula to find the same result.

Let m = -40 be the slope. It's negative to indicate the value of y goes down as x goes up, or vice versa.

With m = -40, x = 8 and y = 470, we can find the y intercept b like so

y = mx+b

470 = -40*8+b

470 = -320+b

470+320 = b

790 = b

b = 790 is the y intercept, and it represents the initial account balance before Katie started withdrawing money.

In other words, it represents the starting amount of money she has.

-------------------------

As a slight alternative, we could use the point slope form to find the y intercept

y - y1 = m(x - x1)

y - 470 = -40(x - 8)

y = -40(x-8) + 470

y = -40x + 320 + 470

y = -40x + 790

You don't have to use (x,y) = (8,470). You can use any column you want from the table of values. The value of m will be m = -40 the whole time however.

-------------------------

As a way to check to see if we have the correct equation, try plugging in various values of x to see if you get the proper y values as outputs as shown in the table.

For instance, if we tried x = 10, then,

y = -40x + 790

y = -40*10 + 790

y = -400+790

y = 390

That confirms column 2. I'll let you verify the other columns.

8 0

3 years ago

In the equation (x-3)2+(y-2)2=16, the center of the circle is...

valkas [14]

Answer:

The center circle of this question is (2,3)

6 0

3 years ago