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slega [8]
3 years ago
13

What values are solutions of 0 =2xexponent of 2 -6x-8

Mathematics
1 answer:
Svetlanka [38]3 years ago
3 0

Answer:

x = -1 and x = 4

Step-by-step explanation:

Firstly solve the quadratic expression of

2x^2-6x-8 = 0....it gives you the two brackets of.....(2x-8)(x+1)=0

then...you equate the two brackets to 0.separately

2x-8 = 0....which gives you...x = 4...as the first solution..then..;

x+1 = 0....which gives you...x = -1...as the second solution

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P1=(-1,3) and P2=(5,-1) <br><br> Find the distance from p1 to P2
LenaWriter [7]

Answer:

7.21

Step-by-step explanation:

Given that:

P1=(-1,3) and P2=(5,-1)

Distance between two points :

d = Sqrt[(x2 - x1)² + (y2 - y1)²]

x1 = - 1 ; y1 = 3

x2 = 5 ; y2 = - 1

d = Sqrt[(5 - (-1))² + ((-1) - 3)²]

d = Sqrt[(5 + 1)² + (-1 - 3)²]

d = sqrt[(6)^2 + (-4)^2]

d = sqrt(36 + 16)

d = sqrt(52)

d = 7.21

3 0
3 years ago
If UV = x+8, VW = 6x-8, and UW=14, what is VW?
Agata [3.3K]

Answer:

VW=4\ units

Step-by-step explanation:

step 1

Find the value of x

In this problem i will assume that  U,V and W are collinear and V is between U and W

so

UW=UV+VW ----> by addition segment postulate

substitute the given values

14=(x+8)+(6x-8)

solve for x

14=7x

x=2

step 2

Find the value of VW

VW=(6x-8)

substitute the value of x

VW=(6(2)-8)=4\ units

3 0
3 years ago
What two numbers add to 4 and, when multiplied together, equal −12?
lara31 [8.8K]
<span>Let x = first number
Let y = second number
x + y = 4
x * y = (-12)
Solve the first equation for x.
x = 4 - y
Now substitute this value of x into the second equation.
(4 - y) * y = (-12)
4y - y² = (-12)
y² - 4y - 12 = 0
(y + 2) * (y - 6) = 0
Now set both polynomials equal to zero
y + 2 = 0
y = -2
y - 6 = 0
y = 6
If you substituted these two values for y into either equation and solve for x, you would get the combination of 6 and -2

Hope I was able to help you! :)
</span>
4 0
3 years ago
Read 2 more answers
Write the fraction of 250,000
sammy [17]
You can write 250,000/1 because in every number if you want to make fraction its always have 1 or put it under that number which is called denominator so the answer would be two hundred and fifty thousand, one: 250,000/1

250,000 will be numerator and 1 will be denominator
7 0
3 years ago
A mobile phone carrier charges an extra fee if a customer uses more than 500 minutes each month. Tom has already used 230 minute
tigry1 [53]
500<span> ≤ 230+x


x will be the amount of minutes Tom has left.</span>
3 0
3 years ago
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