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Doss [256]
3 years ago
12

What is the best approximation of the solution to the equations that these two lines represent ​

Mathematics
2 answers:
klasskru [66]3 years ago
8 0

Answer: The correct answer is (1.5, 0.5)

Step-by-step explanation: I just took the quiz and got it right.

Illusion [34]3 years ago
6 0

Answer: the answer would be c

Step-by-step explanation:

You might be interested in
enelope determined the solutions of the quadratic function by completing the square. f(x) = 4x2 + 8x + 1 –1 = 4x2 + 8x –1 = 4(x2
Marat540 [252]
The correct question is
<span>Penelope determined the solutions of the quadratic function by completing the square.
f(x) = 4x² + 8x + 1
–1 = 4x² + 8x
–1 = 4(x² + 2x)
–1 + 1 = 4(x² + 2x + 1)
0 = 4(x + 2)²
0 = (x + 2)²
0 = x + 2
–2 = x
What error did Penelope make in her work?

we have that
</span>f(x) = 4x² + 8x + 1
to find the solutions of the quadratic function
let
f(x)=0
 4x² + 8x + 1=0

Group terms that contain the same variable, and move the constant to the opposite side of the equation

 (4x² + 8x)=-1

Factor the leading coefficient 

 4*(x² + 2x)=-1

Complete the square Remember to balance the equation by adding the same constants to each side.

 4*(x² + 2x+1)=-1+4 --------> ( added 4 to both sides)

Rewrite as perfect squares

4*(x+1)²=3

(x+1)²=3/4--------> (+/-)[x+1]=√3/2

(+)[x+1]=√3/2---> x1=(√3/2)-1----> x1=(√3-2)/2

(-)[x+1]=√3/2----> x2=(-2-√3)/2

therefore

the answer is

<span>Penelope should have added 4 to both sides instead of adding 1.</span>
6 0
3 years ago
Read 2 more answers
Which of the following represents a polynomial in standard form?
Schach [20]

Answer

150x-2x=3

Step-by-step explanation:

4 0
3 years ago
A culture of bacteria doubles every hour. If there are 500 bacteria at the beginning, how many bacteria will there be after 24 h
Mama L [17]
<span>8388608000. you will have to keep multiplying 2 24 times.</span>
3 0
3 years ago
you are building a rectangular wading pool you want the area of the bottom to be 90 ft squared you want the length of the pool t
Sindrei [870]
L=2W+3, A=LW, using L from the first in the second gives you:

A=(2W+3)W

A=2W^2+3W, and we are told A=90 so

2W^2+3W=90

2W^2+3W-90=0

2W^2-12W+15W-90=0

2W(W-6)+15(W-6)=0

(2W+15)(W-6)=0, since W>0 for all real possibilities, 

W=6ft, and since L=2W+3

L=15ft

So the pool will be 6 ft wide by 15 ft long.
5 0
3 years ago
Use the distributive property to remove the parentheses. <br> -5(-6w+3v-5)
adelina 88 [10]

Answer:

30w - 15v + 25

Step-by-step explanation:

Multiply -5 by each term inside the parentheses.

-5(-6w+3v-5) =

= -5 \times (-6w) + (-5) \times 3v + (-5) \times (-5)

= 30w - 15v + 25

6 0
3 years ago
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