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Lesechka [4]
3 years ago
6

Please help me in math. Write an equation of the parabola shown.

Mathematics
1 answer:
Rama09 [41]3 years ago
5 0

Answer:

y =   \frac{1 }{8} {(x + 3)}^{2}

Step-by-step explanation:

y = a(x - h)^{2}  + k \\ y = a(x - ( - 3))^{2}  + 0 \\ using \: points \: (1 ,\: 2) \\ 2 = a {(1 - ( - 3))}^{2}  \\ 2 =  a{4}^{2}  \\ 16a = 2 \\ \boxed{ a =  \frac{1}{8} } \\ hence \to \\ y = \frac{1}{8} (x - ( - 3))^{2}  \\ y =   \frac{{(x + 3)}^{2} }{8}

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What is a percentage? What do we do with percentages?
Marianna [84]

Answer:

percentages are used like fractions and decimals, as ways to describe parts of a whole. For example, discounts in shops, bank interest rates, rates of inflation and many statistics in the media are expressed as percentages. Percentages are important for understanding the financial aspects of everyday life. When you are using percentages, the whole is considered to be made up of a hundred equal parts. The symbol % is used to show that a number is a percentage, and less commonly the abbreviation 'pct' may be used.

6 0
3 years ago
Can someone please help me with writing a flowchart proof?
Keith_Richards [23]

Answer:

∠AZ = ∠BX

The two triangles are equivalent triangles

Step-by-step explanation:

Flowchart proofs are organized with boxes and arrows. The statements given are written in the box and the reason of that statement is written just below the box. Every statement if flowchart proof complements other statement.

∠AZ = ∠BX

The two triangles are equivalent triangles.

5 0
2 years ago
The sum of Sharon's and John's ages is . Sharon is times as old as John. If you let Sharon's age and John's age, then the proble
il63 [147K]

Answer:

A

Step-by-step explanation:

Im pretty sure its A because

55ish plus 15ish equals 70 which is their ages combined

55-60 is also 4 x 15  

6 0
3 years ago
If 1/2 is subtracted from four times the reciprocal of a number, the result is 0. Find the number.
Maurinko [17]

Answer:

The Number is 8.

Step-by-step explanation:

Let the number be x.

Given:

1/2 is subtracted from four times the reciprocal of a number, the result is 0.

Hence the equation will become like;

4\times \frac{1}{x} - \frac{1}{2}=0

Now Solving the equation we get.

\frac{4}{x} -\frac{1}{2}=0\\\\\frac{4}{x} = \frac{1}{2}\\\\x= 4\times 2\\x=8

Now the we can see the number is 8, when 1/2 is subtracted from 4 times the reciprocal of number means 4/8 which becomes 1/2 and hence when 1/2 is subtracted from 1/2 it equals to 0.

Hence the number is 8.

8 0
3 years ago
Solve 2 - (7x + 5) = 13 - 3x (make sure to type the number only)
nadezda [96]

Answer:

x = -4

Step-by-step explanation:

2 - (7x + 5) = 13 - 3x

add the binomial (7x +5) to both sides

2 = (7x + 5) + 13 - 3x

combine like terms

2 = 4x + 18

subtract 18 from both sides

-16 = 4x

divide by 4

x = -4

7 0
3 years ago
Read 2 more answers
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