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3 years ago

Find the missing variable. Show all work to receive full credit! 8 36° Х

Mathematics

1 answer:

Snowcat [4.5K]3 years ago

4 0

Answer:

vsbs.

Step-by-step explanation:

vdgs sus zh zh sh sbs. susvudbjd is sus he she bunny can come go to do so to do so I'm to text to do so I'm done em thanksgsvsvs hsvdu come for v roll also duck got v until v you v yo

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n200080 [17]

Answer:

68. See pic

Step-by-step explanation:

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3 years ago

If the degree in the numerator is smaller than the degree in the denominator and there is no vertical

mote1985 [20]

The answer is false.

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What’s the vertex form of F(x)=x^2+2x-3

kupik [55]

Answer:

$\large\boxed{f(x)=(x+1)^2-4}$

Step-by-step explanation:

$\text{The vertex form of a quadratic equation}\ f(x)=ax^2+bx+c:\\\\f(x)=a(x-h)^2+k\\\\(h,\ k)-\text{vertex}\\=====================================$

$\bold{METHOD\ 1:}\\\\\text{convert to the perfect square}\ (a+b)^2=a^2+2ab+b^2\qquad(*)\\\\f(x)=x^2+2x-3=\underbrace{x^2+2(x)(1)+1^2}_{(*)}-1^2-3\\\\f(x)=(x+1)^2-4\\==============================$

$\bold{METHOD\ 2:}\\\\\text{Use the formulas:}\ h=\dfrac{-b}{2a},\ k=f(k)\\\\f(x)=x^2+2x-3\to a=1,\ b=2,\ c=-3\\\\h=\dfrac{-2}{2(1)}=\dfrac{-2}{2}=-1\\\\k=f(-1)=(-1)^2+2(-1)-3=1-2-3=-4\\\\f(x)=(x-(-1))^2-4=(x+1)^2-4$

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3 years ago

I need help help please

Nitella [24]

Answer:

I think it is b

Step-by-step explanation:

I hope this is correct

6 0

3 years ago

Jake runs the 100-meter dash in

SSSSS [86.1K]

Answer:

400 meters

Step-by-step explanation:

We are told in the question that:

Jake runs the 100-meter dash in

track.

Erika runs a race 400% the distance of Jake's race.

Hence, the length of

Erika's race is calculated as:

400% × 100 - meter

= 4 × 100- meter

= 400 meters

Therefore, Erika's race was 400 meters long.

4 0

3 years ago