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3 years ago

Need help plzz I am struggling

Mathematics

1 answer:

otez555 [7]3 years ago

7 0

The equation you need to find x is,

$12x^{\circ}+30^{\circ}=90$ .

Then solving for x gives you $x=5$ .

Hope this helps.

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How to solve this using rational equations

Reptile [31]

Answer:

Step-by-step explanation:

look this solution :

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3 years ago

Which is equivalent to (9y2 – 4x)(9y2 + 4x), and what type of special product is it?

QveST [7]

This is an example of the difference of squares.

$a^2 - b^2 = (a-b)(a+b)$

So to find the product of (9y² – 4x)(9y² + 4x), we use the formula for the difference of squares.

 $(9y^2 - 4x)(9y^2 + 4x)\\\\=(9y^2)^2 -(4x)^2\\\\=\boxed{\bf{81y^4 - 16x^2}}$

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3 years ago

Solve ax + b = cx + d for x.

romanna [79]

Answer: X = (d-b) / (a-c)

This way this worded is weird but I think I got it

Step-by-step explanation:

Subtract B from both sides

ax = cx +d -b

Then subtract CX from both sides

ax -cx =d-b

Distributive Property

x(a-c) =d-b

Divide both sides by a-c

X = (d-b) / (a-c)

6 0

3 years ago

Calcola l'area di un rombo sapendo che il perimetro è 160 cm è la sua altezza misura 38,4 cm

AURORKA [14]

Answer:

41,6 cm

Step-by-step explanation:

Formula for Perimeter of a rhombus: P = 2L + 2H (H is the height, L the length)

Perimeter: 160 cm = 2L + 2(38,4 cm), or

160 cm + 76.8 cm + 2L, or

83.2 cm = 2L

and so the height (altezza) is H = 83.2 cm / 2 = 41,6 cm

4 0

3 years ago

What is 7,000 written in word from

Anastasy [175]

The answer to your question is seven thousand. Hope this helps!

7 0

3 years ago

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