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2 years ago

Re-write the quadratic function below in Standard Form y= -9(x+3)2+2

Mathematics

2 answers:

disa [49]2 years ago

7 0

Answer:

18x+y=-52

Step-by-step explanation:

we all know and love(being 100% sarcastic here)the standard form as

ax+by=c

y=-9(x+3)*2+2----This is weird and not so nice

so lets make it nice by distributing the 9::::

y=(-9x-27)2+2

and now the 2:

y=-18x-54+2

y=-18x-52

oops this is NOT in S.F we got to switch the -52 and y

52=-18x-y

-18 cant be neg. so we have to divide by -1 on both sides

-52=18x+y

18x+y=-52

HOPE THIS HELPS

ziro4ka [17]2 years ago

3 0

Answerjdjfbdbd:

Step-by-step explanation:

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In circle Q with

jonny [76]

Answer:

The minor arc PR is 42 degrees

Step-by-step explanation:

The picture of the question in the attached figure

we know that

The inscribed angle is half that of the arc comprising

$m\angle PSR=\frac{1}{2}(arc\ PR)$

we have

$m\angle PSR=21^o$

substitute

$21^o=\frac{1}{2}(arc\ PR)$

$arc\ PR=21(2)=42^o$

Remember that the minor arc in a circle is less than 180 degrees

therefore

The minor arc PR is 42 degrees

4 0

3 years ago

What is the equation of a parabola that has a focus at (0, −3) and a directrix,y = 3 ?

KiRa [710]

Refer to the diagram shown.

At an arbitrary point P (x,y) on the parabola, the distance from the focus should be equal to the distance from the directrix.
The distance of P from the focus is
d₁ = √[x² + (y+3)²]
The distance from P to the directrix is
d₂ = 3 - y

Therefore
d₁ = d₂.
That is,
x² + (y+3)² = (3 - y)²
x² + y² + 6y + 9 = 9 - 6y + y²
x² + 12y = 0
y = - (1/12) x²

Answer: $y=- \frac{1}{12} x^{2}$

8 0

3 years ago

Read 2 more answers

Eli is a loan officer. he determines his clients’ eligibility for loans and for good interest rates by using their credit scores

ElenaW [278]

Eli is a loan officer. he determines his clients’ eligibility for loans and for good interest rates by using their credit scores, the evaluation of his applicants based on their mean and median credit scores will give Dirk the highest mean score, but Valerie has the highest median score.

<h3>How do you calculate the mean score?</h3>

Generally, The mean is computed by summing all of the scores and then dividing by the number of scores contributed.

In conclusion, with the given data Roy 750 792 661 Dirk 771 707 755 Haley 643 642 770 Valerie 646 773 762, Dirk has the highest mean score, but Valerie has the highest median score.