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3 years ago

Factor 24x-40 using GCF

Mathematics

1 answer:

posledela3 years ago

3 0

Answer:

8(3x-5)

8 is the GCF of 24 and 40 so you write 8 and in brackets you put your terms after you divide by 8 so you get 3x and -5 so it is written as 8(3x-5)

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Can I get some help

ra1l [238]

Answer:

The answer to your question is below

Step-by-step explanation:

The answers for 1, 3 and 4 are given in decimals and roots.

1) $\sqrt{2^{2} - 4(3)(-6)}$

$\sqrt{4 + 72}$

$\sqrt{76}$

$2\sqrt{19} = 8.71$

2) $\sqrt{1^{2} -4(1)(-6)}$

$\sqrt{1 + 24}$

$\sqrt{25}$

3) $\sqrt{1^{2} - 4(1)(-11)}$

$\sqrt{1 + 44}$

$\sqrt{45}$

$3\sqrt{5} = 6.7$

4) $\sqrt{8^{2} -4(5)(2)}$

$\sqrt{64 - 40}$

$\sqrt{24}$

$2\sqrt{6} = 4.89$

5 0

2 years ago

Tony bought a case of notebooks for his classroom priced at $8.50. If sales tax is 6%, what is the total cost after tax?

lara [203]

It should be around 9.095 or just around 9.11 dollars.

Hope this is correct and that it helped!!

6 0

2 years ago

6.3078 how do you say this is word form

Luda [366]

<span>six and three thousand, seventy-eight ten-thousandths.</span>

3 0

2 years ago

Read 2 more answers

14% of the town's population is over the age of 65. If there are 320 residents over the age of 65, approximately what is the tow

marshall27 [118]

Answer & Step-by-step explanation:

So if 14% are over 65, and 320 residents are over 65, then we can say that 14% of the town is 320. Then, we can divide by 14 to find 1%, which is 22.857142857 Now we can multiply this by 100 to get 2285.7142857, which is the answer. To double check, you'd just find 14% of 2285.7142857 (multiply by 0.14) which is equal to 320. Because you can't have fractions of people, however, you'd have to round the answer up to 2286 people.

If that is too difficult to understand them hope this is easier

14% of the towns population is 320. Let P denote the towns population.

14/100 * P =320

14P/100 = 320

14P = 32000

divide both sides by 14

P = 2285.71

the towns population is 2286

Hope this helps!

5 0

2 years ago

Given P(x) = 2x3 - 11x2 + 18x - 15 is divided by x – 3. Use synthetic division to find the quotient and the remainder.

katrin [286]

You can find the remainder right away by simply plugging in $x=3$ . The polynomial remainder theorem guarantees that the value of $p(3)$ is the remainder upon dividing $p(x)$ by $x-3$ , but I digress...

Synthetic division yields

3   |   2   -11   18   -15
.    |           6   -15     9
- - - - - - - - - - - - - - - - -
.    |   2     -5     3     -6

which translates to

$\dfrac{2x^3-11x^2+18x-15}{x-3}=2x^2-5x+3-\dfrac6{x-3}$

(and note that $p(3)=2(3)^3-11(3)^2+18(3)-15=-6$ , as expected)

5 0

2 years ago