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Elanso [62]
3 years ago
11

What is the factorization of 8x2+13x-6

Mathematics
2 answers:
poizon [28]3 years ago
6 0
Hope this helps.

 8x^2 +13x -6 =(8x-3)(x+2)

UNO [17]3 years ago
5 0

Answer:

(x+2)(8x-3)

Step-by-step explanation:

We have been given an expression 8x^2+13x-6. We are asked to factor our given expression.

We will use splitting the middle term method to factor our given expression. We need to numbers whose sum is 13 and whose product is -48. We know such two numbers are 16\text{ and }-3.

8x^2+16x-3x-6

Make two groups:

(8x^2+16x)+(-3x-6)

Factor out greatest common factor of each group:

8x(x+2)-3(x+2)

(x+2)(8x-3)

Therefore, the factored form of our given expression would be (x+2)(8x-3).

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Rus_ich [418]
Assuming you means 6.5% tax of a $42 purchase

0.065*42=2.73

tax is $2.73
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3 years ago
Please help me! I'm spending 50 points on this question and my last two questions never even got answered!
Verdich [7]

Answer:

C.

Step-by-step explanation:

Domain is only affected if certain values can make the result something that either doesn't make sense or is an error. In your situation, it wants you to find the domain of f/g, which is a fraction. The only rule we have for fractions regarding domain is that we simply can't divide by zero, to find the domain for any fraction with variables in the denominator, what I do is take the denominator, set it equal to 0, and solve for x.

So, if we're taking f/g, we have:

\frac{3x^2 + x^4 + 2}{4x - 3}

4x - 3 makes up our denominator, the bottom part of the fraction. So

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So the denominator is equal to zero when x is equal to 3/4. This would produce an error in any calculator because you can't divide by zero. The domain here is all real numbers except for 3/4.

(For future problems, the only thing to look out for is if your numerator, the top part of the fraction, factors into something that cancels with the bottom. In that case, it wouldn't affect domain because you aren't actually dividing by anything. For example:

\frac{x^2 - 4}{x-2}

If we factor the top, we see that x^2 - 4 = (x - 2)(x + 2). In this case, we have (x - 2) in both the top and bottom of the fraction, so it cancels out, and from there nothing else is restricting our domain. It would be all real numbers in a case like that.)

8 0
3 years ago
When working overtime, an auto mechanic gets paid 1.5 times the normal hourly wage. Overtime is the amount of time worked beyond
DedPeter [7]
So

x=hours
y=pay

use a piecewise function maybe

for x≤40, use y=21x


for x>40, use 840+1.5(21(x-40))


k, sso 46>40 so

840+1.5(21(46-40))
840+1.5(21(6))
840+1.5(126)
840+189
1029



A. 840+1.5(21(x-40))
B. $1029
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2 years ago
Please help!<br> is there any solutions?
Digiron [165]
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2 years ago
WILL MARK BRAINLIEST PLEASE HELP
Serga [27]
It’s the second one, 65.4

V=1
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