2 years ago

part b: is the point (−2, 5) included in the solution area for the system? justify your answer mathematically. (4 points)

Mathematics

1 answer:

tatiyna2 years ago

7 0

We need the equations of the system. They're probably in part-a, or maybe even before both parts.

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If you flip two coins 28 times, what is the best prediction possible for the number of times both coins will land on tails?

kifflom [539]

Answer:

hyksowhsidokdvdjslwl

6 0

2 years ago

Read 2 more answers

PLEASE HELPPPP!!!!!!

Sloan [31]

Step-by-step explanation:

y=kx

say that y is the original prince and x is the sale price

15=k(10)

15/10=k

3/2=k

you can check with the next problem to check if it is the same

25=k(20)

25/20=k

5/4=k

so you take 5/4-3/2=-1/4 so the constant is -1/4

Hope that helps :)

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2 years ago

Brian is selling cookies at a bake sale. He earns $2.75 for each bag of cookies he sells. Write an equation to represent this sc

sesenic [268]

Let C equal bags of cookies
Let M equal money earned

2.75c=m

Probably not enough sorry if it isn't

5 0

2 years ago

Read 2 more answers

PLZ HELP

Alex

Answer:

The correct option is C ) 109.5°

Therefore,

$m\angle E=109.5\°$

Step-by-step explanation:

Given:

In Triangle DEF

d = 10

e = 18

f = 12

To Find

angle E = ?

Solution:

In Triangle DEF , Cosine Rule says

$\cos E=\dfrac{f^{2}+d^{2}-e^{2}}{2fd}$

Substituting the values we get

$\cos E=\dfrac{12^{2}+10^{2}-18^{2}}{2\times 12\times 10}$

$\cos E=\dfrac{-80}{240}=-\dfrac{1}{3}$

Therefore,

$\angle E=\cos^{-1}(-0.3333)$

$m\angle E=109.5\°$ ............As it is in Second Quadrant

Therefore,

$m\angle E=109.5\°$

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2 years ago

The coefficients in the expression of (x+y)^4 are

DENIUS [597]

Answer:

the coefficients are 1,4,6,4,1.

Step-by-step explanation:

I hope this helps

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2 years ago