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icang [17]
3 years ago
13

Re-write the quadratic function below in Standard Form y=-3 (x - 2)² – 7

Mathematics
1 answer:
pav-90 [236]3 years ago
3 0

Answer:

y=-3x^2+12x-19

Step-by-step explanation:

we know that

The quadratic equation in standard form is equal to

y=ax^{2} +bx+c

we have

y=-3(x-2)^{2}-7

This is a quadratic equation in vertex form

Convert to standard form

y=-3(x^2-4x+4)-7

Apply distributive property

y=-3x^2+12x-12-7

Combine like terms

y=-3x^2+12x-19 ----> quadratic equation in standard form

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Which number line model represents the expression -2/5 + 4/5
Akimi4 [234]

Hi

-2/5 + 4/5 = 2/5..................

5 0
3 years ago
Help Please with geometry!!! Need answer ASAP!!
blondinia [14]
Part a - triangles EGD and FGD are similar
part b - we know this because they have the same interior angles. both are 45,45,90 triangles
8 0
3 years ago
Ann cuts her brownie into six equal parts and eats three pieces. Chris cuts his brownie into ten equal parts and eats four piece
Trava [24]

Answer:

no

Step-by-step explanation:

Ann ate 3/6, or 1/2 (50%) of hers.

Chris ate 4/10, or 2/5 (40%) of his.

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5 0
3 years ago
Which is the last sentence of the proof? because f + e = 1, a2 + b2 = c2. Because f + e = c, a2 + b2 = c2. Because a2 + b2 = c2,
lyudmila [28]

The latest sentence of proof by using the triangle congruence method we can conclude that f+e=c, a^{2} + b^{2} = c^{2}.

Given that ΔABC and ΔCBD are right triangles

Therefore, one angle of both triangle is of 90°

So, ∠B is same in both triangles. Hence, by suing the Angle-Angle theorem rule we can conclude that both ΔABC and ΔCBD are similar.

Consequently, ∠A is same in both triangles. Hence, by suing the Angle-Angle theorem rule we can conclude that both ΔABC and ΔCBD are similar.

Similarly, When two triangles are similar then their corresponding angles are equal and their corresponding sides are also equal.

Therefore , the two proportions can be rewritten as

a² = cf ( equation 1 )

b² = ce ( equation 2 )

By adding b² on both side of equation 1 then we can write equation 1 as

a^{2} + b^{2} = b^{2}+cf

a^{2} + b^{2} = ce+cf

Because b² and ce are equal and substitute on the right side of equation 1

Using the converse of distributive property  in above equation then we get a new equation. That is,

a^{2} +b^{2}  = c(f+e)

Because distributive property is a(b+c)=a(b+ac)

a² + b² = c²

Because e + f = c²

To learn more about triangle congruency: brainly.com/question/1675117

#SPJ4

6 0
1 year ago
Olympic swimming pools are rectangles measuring 164.042 feet in length and 82.021 feet in width. What is the perimeter of an Oly
ser-zykov [4K]
To find perimeter you multiply. 
164.042*82.021=13454.888888882 (8 repeating) 
4 0
3 years ago
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