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AfilCa [17]
3 years ago
8

Which binomial is a factor of 12x^2 - x - 20

Mathematics
1 answer:
stellarik [79]3 years ago
3 0

Answer:

12x² - x - 20 = (4x+5)(3x−4)

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Can someone please answer. There is a picture. It is only one question. Thank you so much!
Charra [1.4K]
We can check each of these using the Pythagorean Theorem, a^2 + b^2 = c^2
Option A: 
.5^2 + 1.2^2 = 1.3^2


.25 + 1.44 = 1.691.69 = 1.69
This option works
Option B
1^2 + 2^2 = 3^2
1 + 4 = 9
5 ≠ 9
This option does not work, but let's check the others to make sure
Option C:
6^2 + 8^2 = 10^2
36 + 64 = 100
100 = 100
This option works
Option D:
3^2 + 4^2 = 5^2
9 + 16 = 25
25 = 25
This option works

So, after doing the calculations, we see that option B does not work
6 0
3 years ago
Jeb bought a $5 Footlong TM. Sales tax was 8%. How much was sales tax for the sandwich
Katen [24]

C)5.40

The answer is $5.40 because 5 x 8=40 and the sales tax is 8% so you just add 2 decimal places so 5.00 + .40 =5.40.

P.S. You put the answer in your question.

5 0
4 years ago
Read 2 more answers
Complete the table of values
Agata [3.3K]
Both problems give you a function in the second column and the x-values. To find out the values of a through f, you need to plug in those x-values into the function and simplify! 

You need to know three exponent rules to simplify these expressions:
1) The negative exponent rule says that when a base has a negative exponent, flip the base onto the other side of the fraction to make it into a positive exponent. For example, 3^{-2} =
\frac{1}{3^{2} }.
2) Raising a fraction to a power is the same as separately raising the numerator and denominator to that power. For example, (\frac{3}{4}) ^{3}  =  \frac{ 3^{3} }{4^{3} }.
3) The zero exponent rule<span> says that any number raised to zero is 1. For example, 3^{0} = 1.
</span>

Back to the Problem:
Problem 1 
The x-values are in the left column. The title of the right column tells you that the function is y =  4^{-x}. The x-values are:
<span>1) x = 0
</span>Plug this into y = 4^{-x} to find letter a:
y = 4^{-x}\\&#10;y = 4^{-0}\\&#10;y = 4^{0}\\&#10;y = 1
<span>
2) x = 2
</span>Plug this into y = 4^{-x} to find letter b:
y = 4^{-x}\\ &#10;y = 4^{-2}\\ &#10;y =  \frac{1}{4^{2}} \\  &#10;y= \frac{1}{16}
<span>
3) x = 4
</span>Plug this into y = 4^{-x} to find letter c:
y = 4^{-x}\\ &#10;y = 4^{-4}\\ &#10;y =  \frac{1}{4^{4}} \\  &#10;y= \frac{1}{256}
<span>

Problem 2
</span>The x-values are in the left column. The title of the right column tells you that the function is y =  (\frac{2}{3})^x. The x-values are:
<span>1) x = 0
</span>Plug this into y = (\frac{2}{3})^x to find letter d:
y = (\frac{2}{3})^x\\&#10;y = (\frac{2}{3})^0\\&#10;y = 1
<span>
2) x = 2
</span>Plug this into y = (\frac{2}{3})^x to find letter e:
y = (\frac{2}{3})^x\\ y = (\frac{2}{3})^2\\ y = \frac{2^2}{3^2}\\&#10;y =  \frac{4}{9}
<span>
3) x = 4
</span>Plug this into y = (\frac{2}{3})^x to find letter f:
y = (\frac{2}{3})^x\\ y = (\frac{2}{3})^4\\ y = \frac{2^4}{3^4}\\ y = \frac{16}{81}
<span>
-------

Answers: 
a = 1
b = </span>\frac{1}{16}<span>
c = </span>\frac{1}{256}
d = 1
e = \frac{4}{9}
f = \frac{16}{81}
5 0
3 years ago
50 PTS!!!
nydimaria [60]

Answer:

the data of the cubic

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5 0
3 years ago
A rectangle has an area of 130m2.
leonid [27]

Answer:

62

Step-by-step explanation:

7 0
3 years ago
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