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Vesnalui [34]
3 years ago
11

What’s the correct answer to this problem ?

Mathematics
1 answer:
kicyunya [14]3 years ago
5 0

Answer:

y = (x+3)^2 -1

Step-by-step explanation:

The equation for an upward opening parabola is

y = a(x-h)^2 +k

Where (h,k) is the vertex

The vertex is (-3,-1)

y = a(x--3)^2 +-1

y = a(x+3)^2 -1

Put a point in to find a

(0,8)

8 = a(0+3)^2 -1

8 = a (3)^2 -1

Add 1 to each side

8+1 = a9

9=9a

Divide by 9

1 =a

y = (x+3)^2 -1

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BRIANLY FOR THE BEST EXPLANATION AND ANSWER!
Kryger [21]

Answer:

C ≈ 14.18

Step-by-step explanation:

<u><em>Question Given:</em></u>

A circle has an area of 16mm². Find it's circumference.

<u><em>Formula:</em></u>

C = 2√πA

<u><em>Solve:</em></u>

C = 2√πA

C = 2√(3.14 × 16)

C = 2√50.24

C = 14.1760361173

C ≈ 14.18

<em>Hence, Circumference is approximately 14.18.</em>

<em />

<u>~Kavinsky</u>

8 0
2 years ago
Read 2 more answers
A leaky faucet waste 3600 gallons of water per year.how many quarts does it waste per month
lianna [129]

There are 12 months in a year, so you need to divide 3600 by 12. 3600 / 12 = 300. The faucet wastes 300 gallons of water per month.

3 0
3 years ago
A fish store received a shipment of 246 goldfish. The owner of the store arranged the fish into small tanks of 8 fish per tank.
saw5 [17]

Answer:

he would need 31 tanks

30 tanks would hold 240 fish with 6 left over

Step-by-step explanation:

246/8= 30.75

30*8 = 240

6 0
3 years ago
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Factorise 2x^2 +3x -20=0. 25 points!! plsss could someone help :)
aksik [14]

Answer:

(2x - 5) (x + 4)

Step-by-step explanation:

5 0
3 years ago
Vertex = (2,5), Point (0, 1)
Rama09 [41]

Answer:

therefore y= - (x-2)^2 + 5

Step-by-step explanation:

u do this by using this format here ..,

y=a(x-h)^2+k

sub in the vertex points as h=2 and k = 5 , since the 2 is positive its sign will be -2 in the brackets because when solving for x-2=0 it is x=2

y=a(x-2)^2+5

then with your (0,1) points plug that in as y and x

1=a(0-2)^2+5

1=a(-2)^2+5

1=4a+5

1-5=4a

-4=4a

a=-1

therefore y= - (x-2)^2 + 5

8 0
3 years ago
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