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emmainna [20.7K]
3 years ago
15

Find the value of the variable, x

Mathematics
1 answer:
Rashid [163]3 years ago
3 0

Answer:

The value of x is 27

Step-by-step explanation:

If you multiply 27 by every x in this problem, and add up the angles it will equal 180. Which is the amount of degrees every triangle adds up to.

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Write the difference in factored form. (24x4 - 15x2 + 6x) - (10x4 + 5x2 - 4x)​
Pachacha [2.7K]

Answer:

The factored difference is: 2x(7x^3 - 10x + 5)

Step-by-step explanation:

Difference in non factored form:

To find the difference in non-factored form, we subtract the common terms. So

24x^4 - 15x^2 + 6x - (10x^4 + 5x^2 - 4x) = 24x^4 - 10x^4 - 15x^2 - 5x^2 + 6x + 4x = 14x^4 - 20x^2 + 10x

Greatest common factor:

Of the exponents: Between x^4, x^2 and x, it is the one with the lowest exponent, so x.

Between 14, 20 and 10:

14 - 20 - 10|2

7 - 10 - 5

So 2

The gcf is 2x, which means that the factored expression is:

2x(\frac{14x^4}{2x} - \frac{20x^2}{2x} + \frac{10x}{2x}) = 2x(7x^3 - 10x + 5)

The factored difference is: 2x(7x^3 - 10x + 5)

8 0
3 years ago
Asha and Lucy are selling pencils in a school shop.
Akimi4 [234]

Step-by-step explanation:

7x+22=2(5x+2)

7x+22=10x+4 (-7x)

3x+4=22 (-4)

3X=18 (divide by 3)

X=6 pencils

check if the number is correct

asha= 7*6=42 42+22 is 64

Lucy= 5*6=30 30+2 is 3264/32 is 2

asha= 7*6=42 42+22 is 64Lucy= 5*6=30 30+2 is 3264/32 is 2there fore asha sells twice as many as Lucy

8 0
3 years ago
Please please please please please please add help me
nirvana33 [79]

Answer:

5.3

Step-by-step explanation:

Use Pyth Theorem

a^2 + b^2 = c^2

6^2 + b^2 = 8^2

36 + b^2 = 64

b^2 = 28

Sq root of 28 = 5.3

4 0
3 years ago
The regular price of an aquarium is $70 and the sale price is $60. what is the percent of discount? (percent of change!!)
Naddik [55]
Let's take the difference between the old and new (70 - 60) to get 10 and then divide this by the old (70) amount...10/70 = .142857 convert to a percent by moving the decimal 2 spaces to the right...  14.29 %
3 0
3 years ago
Someone help me on 103 pls
Vlad [161]

Answer:

it is A

27000

hope it helps u

4 0
3 years ago
Read 2 more answers
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