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3 years ago

Someone please help me

Mathematics

2 answers:

liq [111]3 years ago

7 0

Answer: the general equation for a circle is ( x - h )^2 + ( y - k )^2 = r^2, where ( h, k ) is the center and r is the radius

Zinaida [17]3 years ago

6 0

Answer:

its false

Step-by-step explanation: i am 100% sure

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A sales person told Hannah she could buy the computer on an installment plan. She

VashaNatasha [74]

Answer:

She would be paying $2,622 total.

Step-by-step explanation:

1. To get how much she'd be paying for 24 months, all you have to do is multiply 24 times 95.

2. To get the down payment you had to ask yourself what's 15% of 2,280. 15% of 2280 is 342.

3. Add those together and you'd get the total payment.

Simple.

Oh and gimme Brainliest if it's correct.

6 0

3 years ago

50 POINTS PLS HELP!!!!

VARVARA [1.3K]

The plot of the PDF shows the distribution is symmetric. This means that the mean is the same as the median, and that the 50% of the distribution lies to other side of this mean, i.e.

$P(X\ge a)=P(X\le a)=0.50$

For this distribution, $a=3$ .

3 0

3 years ago

Read 2 more answers

Let y′′′−9y′′+20y′=0. find all values of r such that y=erx satisfies the differential equation. if there is more than one correc

DerKrebs [107]

we are given

differential equation as

$y'''-9y''+20y'=0$

we are given

$y=e^{rx}$

Firstly, we will find y' , y'' and y'''

those are first , second and third derivative

First derivative is

$y'=re^{rx}$

Second derivative is

$y''=r*re^{rx}$

$y''=r^2e^{rx}$

Third derivative is

$y'''=r^2*re^{rx}$

$y'''=r^3e^{rx}$

now, we can plug these values into differential equation

and we get

$r^3 e^{rx}-9r^2 e^{rx}+20re^{rx}=0$

now, we can factor out common terms

$e^{rx}(r^3 -9r^2 +20r)=0$

we can move that term on right side

$(r^3 -9r^2 +20r)=0$

now, we can factor out

$r(r^2 -9r +20)=0$

$r(r-5)(r-4)=0$

now, we can set them equal

$r=0$

$r-5=0$

$r=5$

$r-4=0$

$r=4$

so, we will get

$r=0,4,5$ ...............Answer

4 0

4 years ago

There are 50 read beans and 50 white beans in a bag . The first bean selected is red . The red bean is returned to the bag . Wha

andrew11 [14]

Answer:

50% as there is 100 beans all together

4 0

3 years ago

A drawer contains unmatched socks. There are 7 black, 4 blue, and 5 white. What is the probability that you will select a white

kotykmax [81]

Answer:

Step-by-step explanation:

8.3

6 0

3 years ago