3 years ago

True or false: a closed circle is used when a number is a not solution

1 answer:

7 0

False

. A closed circle is used when a number is a solution. An arrow to the left or right shows that the graph continues in that direction.

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What is the missing constant term in the perfect square that starts with x^2+2x

DENIUS [597]

Answer:

Step-by-step explanation:

The constant term in a perfect square trinomial with leading coefficient 1 is the square of half the coefficient of the linear term.

(2/2)² = 1

The missing constant term is 1.

3 0

3 years ago

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HELPPP

Rudiy27

Formula: A = 2wl + 2lh + 2hw

So... : A = 2(4x8) + 2(8x3) + 2(3x4)

A = 2(32) + 2(24) + 2(12)

A = 64 + 48 + 24

Answer: A = 136 (add them all up)

Hope this helps!!!

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3 years ago

The focus of a parabola is located at (0,–2). The directrix of the parabola is represented by y = 2. Which equation represents t

Archy [21]

Answer:

$\boxed{x^2=-8y}$

Step-by-step explanation:

$(a,b)\ is \ the\ focus\\y=k\ is \ the\ directrice\\\\Formula\ to\ use:\ y=\dfrac{(x-a)^2}{2(b-k)} +\dfrac{b+k}{2} \\\\Here: \ a=0,\ b=-2, \ k=2\\\\y=\dfrac{(x-0)^2}{2(-2-2)} +\dfrac{-2+2}{2} \\\\so\ y=-\dfrac{x^2}{8} \\\\or\ x^2=-8y$

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3 years ago

4 divided by the sum of a number and 12

Rasek [7]

4 / (x+12)

since 4 is divided by the sum 4 would go first ( as you see above) ^^

4÷(x+12)

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3 years ago

Find ∠mY. A. 13° B. 16° C. 27° D. 76°

andriy [413]

The answer is b because Iy calculations add up

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3 years ago

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