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I am Lyosha [343]

2 years ago

5

What are the coordinates of the vertex of the parabola y=x^2+2x-1

1 answer:

kozerog [31]2 years ago

3 0

Y = x^2 + 2x - 1 = x^2 + 2x + 1 - 1 - 1 = (x + 1)^2 - 2
The vertex of a parabola given by y = a(x - h)^2 + k is (h, k).

Therefore, the vertex of y = (x + 1)^2 - 2 is (-1, -2)

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What is the difference of the fractions? Use the number line to help find the answer.

noname [10]

The result of the expressionn 1/5 - 3/4 will be negative 11/20. Then the correct option is C.

<h3>What is a fraction number?</h3>

A fraction number is a number that represents the part of the whole, where the whole can be any number. It is in the form of numerator and denominator.

The expression is given below.

⇒ 1/5 - 3/4

⇒ (4 - 15) / 20

⇒ -11 / 20

Then the correct option is C.

More about the fraction number link is given below.

brainly.com/question/78672

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5 0

1 year ago

HELP QUICKK Which equation represents the number of test questions in the problem

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Answer:D

Step-by-step explanation:m represents the multiple choice questions, s represents short answer questions, and 15 represents the number of questions

6 0

2 years ago

Please help. solve for x

malfutka [58]

Step-by-step explanation:

Given,

Base of the triangle

$2 \sqrt{6}$

Hypotenuse of the triangle = 5

Height of the triangle = x

Therefore, According to Pythagoras Theorem,

${base}^{2} + {height}^{2} = {hypotenuse}^{2}$

$= > {(2 \sqrt{6)} }^{2} + {x}^{2} = {5}^{2}$

$= > 24 + {x}^{2} = 25$

$= > {x}^{2} = 25 - 24$

$= > {x}^{2} = 1$

$= > x = \sqrt{1}$

$= > x = 1$

Hence, the required value of <u>x is 1.</u>

7 0

2 years ago

Alexandra [31]

my answer is in the image above

3 0

2 years ago

Susie use the one have to help compare 1/3 to 3/5 and to help in comparing 3/7 with 2/3 explain how 1/2 helps determine which fr

gogolik [260]

The fraction $\frac{3}{5}$ and $\frac{2}{3}$ are the greatest in each combination.

Explanation:

Comparing the fraction $\frac{1}{2}$ with $\frac{1}{3}$ and $\frac{3}{5}$ to find the greatest value.

The fraction $\frac{1}{2}>\frac{1}{3}$ and $\frac{1}{2}$

Thus, $\frac{1}{3}$

Hence, $\frac{3}{5}$ is the greatest value in this combination.

Also, Comparing the fraction $\frac{1}{2}$ with $\frac{3}{7}$ and $\frac{2}{3}$ to find the greatest value.

The fraction $\frac{1}{2}>\frac{3}{7}$ and $\frac{1}{2}$

Thus, $\frac{3}{7}$

Hence, $\frac{2}{3}$ is the greatest value in this combination.

8 0

3 years ago