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2 years ago

Solve (2x + y) (2x - y)

Mathematics

2 answers:

creativ13 [48]2 years ago

4 0

Answer:

Step-by-step explanation:

there is formula (a+b)(a-b)=a^2-b^2

(2x+y)(2x-y)=(2x)^2-y^2=4x^2-y^2

Vaselesa [24]2 years ago

3 0

Answer:

Hello There!

~~~~~~~~~~~

(2x + y) (2x - y) =

$4x^{2} - y^{2}$

Step-by-step explanation: Simplify the expression.

Hope this helped you. Brainliest would be nice!

☆_____________❤︎______________☆

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Find the area of the triangle. Figure is not drawn to scale. Show your work. (Image attached)

Zolol [24]

Answer: $13.8cm^2$

Step-by-step explanation:

The area of a triangle can be calculated with the formula:

$A_{(triangle)}=\frac{b*h}{2}$

The base of the triangle is "b" and the height of the triangle is "h",

In the figure you can observe that the base and the height of the triangle are:

$b=6.9cm\\h=4cm$

Knowing these values, you can substitute them into $A_{(triangle)}=\frac{b*h}{2}$ .

Therefore, the area of the triangle is:

$A_{(triangle)}=\frac{(6.9cm)(4cm)}{2}$

$A_{(triangle)}=13.8cm^2$

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2 years ago

The reasons as well as the answer

Radda [10]

Answer:

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Step-by-step explanation:

x = ∠ AEC = 46 ( alternate angles )

Since Δ ACE is isosceles then the base angles are congruent, then

y = $\frac{180-46}{2}$ = $\frac{134}{2}$ = 67

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elena-14-01-66 [18.8K]

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