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Ivenika [448]
3 years ago
8

Please HELPP!!! Solve the system of equations. y= 2x y= x^2 - 15

Mathematics
1 answer:
Nataly [62]3 years ago
7 0

y=2x\\y=x^2-15\\\\x^2-15=2x\\x^2-2x-15=0\\x^2-5x+3x-15=0\\x(x-5)+3(x-5)=0\\(x+3)(x-5)=0\\x=-3 \vee x=5\\\\y=2\cdot(-3) \vee y=2\cdot5\\y=-6 \vee y=10\\\\(x,y)\in\{(-3,-6),(5,10)\}

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Sindrei [870]
Area of a rectangle is given by the formula length x width

length x width = 60ft^2

if the length is an irrational number then most likely the width can be one too
for example
length = 60^1/2
then width must be 60^1/2
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3 years ago
Question 1
miv72 [106K]
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So point slope for is y-y1=m(x-x1)
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2 years ago
The product of 200 and k is 157
ivanzaharov [21]
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3 0
3 years ago
I only need the answer for #6
love history [14]
<h2>Answer=</h2>

Greetings !

The function has no undefined points nor domain constraints Therefore, the domain is

domain \: of \: 3 {}^{x}  =  \\ interval \: notation \: ( -  \infty ,\infty ) \\ solution \:  -  \infty  < x <  \infty  \\  \\

The range of an exponential function of the form

c.n {}^{ax + b}  + k \: is \: f(x) > k \\ k = 0,f(x) > 0

And also the range is given as

[tex]range \: of \: 3 {}^{x} = \\ solution \: x > 0 \\ interval \: notation \: (0,\infty )

Hope it helps!

4 0
2 years ago
Select the expressions that are equivalent to 5(x+6)
riadik2000 [5.3K]

Answer:  30x+5 is the same answer  but simplified as the 5(x+6) im a lil late but :))

Step-by-step explanation:

5 0
3 years ago
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