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2 years ago

(x+7)(x-12) multiply

Mathematics

1 answer:

abruzzese [7]2 years ago

4 0

Answer: x^2-5x-84

Step-by-step explanation:

(x+7)(x-12)=

x*x+(-12*x)+7x+(-84)=

x^2-12x+7x-84=x^2-5x-84

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Please answer this question

san4es73 [151]

Answer:

One of these numbers is a cube number which means that it could be 1,8, or 27 because those are the first three cube numbers.

If you go with one then you have to find two more numbers that add up to 35 and are a factor of 20, which is not possible.

Then you use 8, which means you have to find two numbers that add up to 26, and are factors of 20, which could be nothing, there aren't any.

Last you do 27 which means you need to find two numbers that add up to 9 and are factors of 27, which can be 4 and 5, because 4+5=9 and 4*5=20.

27,4,5

Hope this helps ;)

7 0

4 years ago

With a detailed explanation from the internet 1/(x-5)+3/(x+2)=4

irga5000 [103]

Answer:

$\boxed{ \sf x=\dfrac{4\pm\sqrt{43}}{2}}$

Explanation:

$\rightarrow \sf \dfrac{1}{x-5}+\dfrac{3}{x+2}=4$

make the denominators same

$\rightarrow \sf \dfrac{1(x+2)}{(x-5)(x+2)}+\dfrac{3(x-5)}{(x+2)(x-5)}=4$

join the fractions together

$\rightarrow \sf \dfrac{x+2+3x-15}{(x-5)(x+2)}=4$

cross multiply

$\rightarrow \sf x+2+3x-15=4(x-5)(x+2)$

simplify

$\rightarrow \sf 4x-13=4x^2-12x-40$

group the variables

$\rightarrow \sf 4x^2-16x-27 = 0$

use quadratic formula

$\rightarrow \sf x = \dfrac{-\left(-16\right)\pm \sqrt{\left(-16\right)^2-4\cdot \:4\left(-27\right)}}{2\cdot \:4}$

simplify the following

$\rightarrow \sf x=\dfrac{4\pm\sqrt{43}}{2}$

7 0

2 years ago

Read 2 more answers

Plz resond and help write a rulew to represent the sequence 13122, 4374, 1458, ...

Veseljchak [2.6K]

Answer:

Starts at 13122, and divides by 3

Step-by-step explanation:

4374 x 3 = 13122

5 0

3 years ago

Which shows all the like terms in the expression? ( 4 x minus 3 + 7 x + 1 ) Help Asap will give brainliest. : )

Anestetic [448]

Step-by-step explanation:

4x - 3 + 7x + 1

Solving like terms

11x - 2

6 0

4 years ago

Read 2 more answers

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neonofarm [45]

The percent of owns home is 65.51% and percent of rents home is 34.48% if the total number of US households is 116.

<h3>What is percentage?</h3>

It's the ratio of two integers stated as a fraction of a hundred parts. It is a metric for comparing two sets of data, and it is expressed as a percentage using the percent symbol.

The question is incomplete.

The complete question is in the picture, please refer to the attached picture.

From the table:

Total number of US households = 71+13+5+27 = 116

Owns home = 71+5 = 76

Percent of owns home = (76/116)×100 = 65.51%

Rents home = 13+27 = 40

Percent of rents home = (40/116)×100 = 34.48%

Thus, the percent of owns home is 65.51% and percent of rents home is 34.48% if the total number of US households is 116.

Learn more about the percentage here:

brainly.com/question/8011401

#SPJ1

3 0

2 years ago