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2 years ago

-3x-2y=-6 -3x+2y=18 (?,?)

1 answer:

8 0

$\left \{ {-3x-2y = -6} \atop {-3x+2y=18} \right. \left \{ {-6x=12} \atop {-3x+2y=18} \right. \left \{ {x=-2} \atop {y=6} \right.$

The answer: ( x ; y ) = ( -2 ; 6 )

Ok done. Thank to me :>

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A ball is rolling in a circular path that has a radius of 10 inches as shown in

elena55 [62]

The complete question in the attached figure

we know that
[circumference]=2*pi*r
for r=10 in
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54°------------------------------> X
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3 years ago

Find the common ratio of the geometrie sequence 6, 24, 96,

inessss [21]

Answer:

Step-by-step explanation:

To find the common ratio, take the second term and divide by the first term

24/6 = 4

Check by taking the third term and dividing by the second term

96/24 = 4

The common ratio is 4

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3 years ago

What are the solution(s) of x2-4-0?

Elanso [62]

Answer:

For $x^2 - 4 = 0$ , x = 2, or x = - 2.

Step-by-step explanation:

Here, the given expression is :

$x^2 - 4 = 0$

Now, using the ALGEBRAIC IDENTITY:

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

Comparing this with the above expression, we get

$x^2 - 4 = 0 = x^2 - (2)^2 = 0\\\implies (x-2)(x+2) = 0$

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So, if ( x- 2) = 0 ⇒ x = 2

and if ( x + 2) = 0 ⇒ x = -2

Hence, for $x^2 - 4 = 0$ , x = 2, or x = - 2.

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4 years ago

Read 2 more answers

Can someone please help me figure this out

Brilliant_brown [7]

Answer:

32/40

Step-by-step explanation:

1: Sin= Soh

Soh= Opposite over Hypotenuse

2. A's opposite is 32

3. A's Hypotenuse is 40

4. A = 32/40

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3 years ago

The radius of a circle is 3 yards. What is the circle's area?

Yakvenalex [24]

Answer:

28.26 Yards

Step-by-step explanation:

Step One: Square Radius

r = 3

3² = 9

Step Two: Multiply 9 by π

π = 3.14

9 · 3.14

= 28.26

4 0

3 years ago