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lesantik [10]
3 years ago
5

A parabola has a vertex at (-1,0) and opens down. What is the equation of the parabola?

Mathematics
1 answer:
Lapatulllka [165]3 years ago
5 0

Answer:

y = - (x + 1)²

Step-by-step explanation:

Vertex form of a parabola is given by,

y = -(x - h)² + k

Where (h, k) is the ordered pair representing vertex.

(-) sign denotes that the parabola is opening downwards.

If the coordinates of the given parabola is (-1, 0)

Equation of the parabola will be,

y = - (x + 1)² + 0

y = - (x + 1)²

Therefore, equation of the parabola will be, y = - (x + 1)²

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Find the value of X? Help me please
8090 [49]

Answer:

The answer I got is x=70

Step-by-step explanation:

Just use long subtraction to get the answer 90-20=70 Please tell me if I'm wrong. Hope this helps :)

5 0
3 years ago
A cylindrical tank is half full of oil The cylinder has a base radius of 100cm The height of the cylinder is 250cm 1 litre =1000
mr_godi [17]

Answer:

3,927 liters.

Step-by-step explanation:

So, in this question we are given the following parameters or information or data which is going to assist us in solving this particular Question;

=> "cylindrical tank is half full of oil."

=> "The cylinder has a base radius of 100cm The height of the cylinder is 250cm"

=> 1 litre =1000cm^3."

Therefore, the formula that we will be making use of in this question is given Below as;

=> Volume = 1/2 × height × (radius)^2 × π.

=> Volume = 1/2 × 250 × 100^2 × π.

Volume = 3926990 cm^3.

Recall that 1 litre =1000cm^3.

Hence, volume = 3,927 liters.

5 0
4 years ago
Kelly makes 70% of her free throws. What's the probability that she makes her next two free throws?
LiRa [457]

Answer:

50 percent because its a 50 50 chance

4 0
3 years ago
The equation is 12m+12=15-1
Fudgin [204]

Answer:

1/6

Step-by-step explanation:

Solve-

Subtract the numbers:

12m+12=15 - 1

12m+12 = 14

Subtract 12 form both sides of the equation:

12m+12= 14

12m+12-12 =14-12

Simplify:

Subtract 1: 12m+12-12=14-12

12m=14-12

then 2; 12m=14-12

12m=2

Divide both sides of the equation by the same term:

12m=2

12m/12=2/12

Simplify again:

Cancel out the terms:

12m/12=2/12

m=2/12

Divide the numbers:

m=2/12

m=1/6

Soulution= 1/6

6 0
3 years ago
Using the Pythagorean method solve the problem and find the area of the triangle
denis-greek [22]

Answer:pythagoream theorem applies to right angle triangle.

Formula

C^2= a^2 + b^ 2

Where a&b are the two sides of the triangle so we need to find side c.

C^2 = 35.42^2+ 21.64^2

C^2 = 1254.57 + 468.29

C^2 = 1722.86

C = square root of 1722.86

C= 41.51m

Area of triangle

A = ab/2

A = 35.42 x 21.64/2

A = 383.24.

Step-by-step explanation:

8 0
3 years ago
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