Which equation has a graph that is a parabola with a vertex at (–1, –1)?
y = (x – 1)2 + 1
y = (x – 1)2 – 1
y = (x + 1)2 + 1
y = (x + 1)2 – 1

Answers

Answer 1

Answer:

[tex]y=(x+1)^2-1[/tex]

which agrees with the last option listed.

Step-by-step explanation:

We use the vertex form of a parabola:

[tex]y-y_v=a(x-x_v)^2[/tex]

which with the information we have becomes:

[tex]y-y_v=a(x-x_v)^2\\y-(-1)_v=a(x-(-1))^2\\y=a(x+1)^2-1[/tex]

Therefore the equation that corresponds to such vertex (-1, -1) is the last one listed among your given answer options.

[tex]y=(x+1)^2-1[/tex]

Answer 2

Answer:

D

Step-by-step explanation:


Related Questions

Examine the graph.


Select each interval where the graph is decreasing.

a.−4b. 3c.2d.−1

Answers

C:2 because that is the point where it decreases

The pressure , P, measured in pounds per square inch (psi ) on an object under water varies directly with its depth , d measured in feet . If the pressure on an object at a depth of 20 feet is 8.6 psi, what is the pressure on an object at a depth of 25 feet ?​

Answers

Answer:

10.75 psi

Step-by-step explanation:

Let the equation be:

y = kx, where y- pressure, k- constant, x - depth

For the depth of 20 ft, the equation is:

8.6 = 20kk = 8.6/20k = 0.43

For the depth of 25 ft, the pressure is:

y = 0.43*25 = 10.75 psi

What is the INPUT when the OUTPUT is 12?

Answers

Answer:

I think the answer is 4

yea so like anyone know this​

Answers

Answer:

=13p+7

Step-by-step explanation:

Let's simplify step-by-step.

5p+11+8p−4

=5p+11+8p+−4

Combine Like Terms:

=5p+11+8p+−4

=(5p+8p)+(11+−4)

=13p+7

Answer:

D

Step-by-step explanation:

if i am not mistaken you would add the common multiples with each other which would be 5p+8p and 11+(-4) which would equal 13p+7. I'm sorry if I'm incorrect

Which expression represents a cube root of –8?

Answers

Answer:

C

Step-by-step explanation:

Edge2021

An expression that represents a cube root of -8 is [tex]2(cos(\frac{\pi}{3} )+i~sin(\frac{\pi}{3} ))[/tex]

What is complex number?"It is combination of a real number and an imaginary number.""The complex number is of the form of a + ib, where a, b are real numbers and i = [tex]\sqrt{-1}[/tex]"How to write complex number in trigonometric form?

For a complex number z = a + ib, the trigonometric form is  [tex]r(cos\theta +isin\theta)[/tex]

where [tex]r=|\sqrt{a^{2} +b^{2} } |[/tex] and [tex]\theta=tan^{-1}(\frac{b}{a} )[/tex]

For given question,

We need to find the cube root of -8

[tex]\sqrt[3]{-8}[/tex]

We can write above number as complex number.

[tex]\sqrt[3]{-8}\\ =\sqrt[3]{8\times (-1)}\\ =\sqrt[3]{8}\times \sqrt[3]{-1}\\ =2 \times(-1)^\frac{1}{3}[/tex]

Consider a complex number z = -1

We can write -1 in trigonometric form as, [tex]-1=cos(\pi)+isin(\pi)[/tex]

We know, [tex](cos\theta +isin\theta)^{\frac{1}{n} }=(cos(\frac{1}{n} \theta )+isin(\frac{1}{n} \theta))[/tex]

So,

[tex](-1)^{\frac{1}{3} }\\\\=(cos\pi+i~sin\pi)^{\frac{1}{3} }\\\\=cos(\frac{\pi}{3} )+i~sin(\frac{\pi}{3} )[/tex]

Therefore, an expression that represents a cube root of -8 is [tex]2(cos(\frac{\pi}{3} )+i~sin(\frac{\pi}{3} ))[/tex]

Learn more about complex numbers here:
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Write the following integers in order from least to greatest.
24
-7
0
13
-21

Answers

Answer:

-7, -21, 0, 13, 24

Step-by-step explanation:

Using a calculator, find the decimal equivalent for the fraction 416888.

Answers

Answer:

0.46846846846

Step-by-step explanation:

if fraction was 416/888 thats the answer....

Write your answer with no spaces and any friction with “/“

Answers

Answer:

y=-5/3x+1

Step-by-step explanation:

The answer is y=-5/3x+1 because you would do the exact opposite of rise over run where it rises 5 units up and 3 units shifted right but instead it is still 3 units that are shifted to the right but 5 units down.  We can also assume that the y-intercept is 1 based on where the slope is placed.

HURRY PLEASE IM TIMED. Which list of numbers is shown on the number line below? A number line going from negative 3 to positive 2. There are 4 equal spaces between each number. A point is halfway between negative 3 and negative 2. A point is between the second and third mark between negative 2 and negative 1. A point is on the mark 1 space to the right of 0. A point is halfway between 1 and 2. Negative 2.5, 1 and three-fourths, 50 percent, 1.5 Negative 2.5, negative 1 and one-third, 50 percent, 1.5 Negative 2.5, negative 1 and three-fourths, 25 percent, 1.5 Negative 2.5, negative 1 and one-third, 25 percent, 1.5

Answers

Answer:

It is A The first one

Step-by-step explanation:

Negative 2.5, 1 and three-fourths, 50 percent, 1.5

Pls Mark Brainliest

Answer:

d

Step-by-step explanation:

Solve the given equation: 10|2x-4|=40
Please answer step by step

Answers

Answer:

step by step you said answer step by step that's your answer

Step-by-step explanation:

step by step you said answer step by step that's your answer

$7.49
Takis Tortilla Chips Variety Pack 18 Count
what is the unit rate of the product

Answers

Answer:

About 42 cents

Step-by-step explanation:

What we know:

An 18-count variety pack of Taki's chips costs $7.49.

To find the unit rate divide 7.49 by 18, and round to the nearest cent.

7.49/18

Before we do that, what is 749/18?

749/18 = 41 11/18

Divide that by 100 to get your answer

41.61111/100 = 0.4161111, which rounds to 42 cents.

6.
Caitlyn writes in her lab book that she
has four hundred seventeen thousandths
of a kilogram of a substance. Which
number represents this amount?
A. 0.0417
B. 0.417
C. 0.467
D. 4,170

Answers

The answer would be B.
b is the correct answer

BD bisects angle ABC. Solve for x and find m angle ABC.
m angle ABD = 6x-8, m angle CBD = 3x + 4

Answers

Answer:

The value of x = 4

so

m ∠ABD = 6x-8 = 6(4)-8 = 24-8 = 16m∠CBD = 3x+4 = 3(4)+4 = 12+4 = 16

Step-by-step explanation:

We know that an angle bisector bisects the angle into two equivalent angles.

When BD bisects angle ABC, it forms two equivalent angles which are:

m∠ABDm∠CBD

such as

m∠ABD = m∠CBD

as

m ∠ABD = 6x-8

m∠CBD = 3x+4

so the equation becomes

m∠ABD = m∠CBD

6x-8 = 3x+4

6x - 3x = 4 + 8

3x = 12

Divide both sides by 3

x = 4

Thus, the value of x = 4

so

m ∠ABD = 6x-8 = 6(4)-8 = 24-8 = 16m∠CBD = 3x+4 = 3(4)+4 = 12+4 = 16

LOOK A PICTURE HURRY PLS LIKE RIGHT NOW

Answers

Answeri think it’s 96 or 84 I’m. It sure I had this like 3 years ago

Step-by-step explanation:

Hi! I’m struggling on this math book, above is the image of the problem please only tell me the answers of the boxes. Thank you (Will give branliest to the person who gives me the right answer)

Answers

sum (2M^2+m)+(2m^2+m)

different 5(m^2+ m)-(m^2+3M)

RADIUS OF A CIRICLE WITH A DIAMETER OF 40 INCHES

Answers

Radius in Terms of Diameter: d/2
So, you would take your diameter, 40 and divide that by 2.
Radius = (diameter/2) = (40/2) = 20
The answer to this questions is 20

find the value of this expression is x=-2
x-4/x

Answers

Answer:

no soulition

Step-by-step explanation:

Answer: -2(x+2)/x

Step-by-step explanation: solve this equation and you will ge the final product

5xf(1)+5xg(9)


solve this please evaluate functions expressions

Answers

Answer:

Solution is the 5fx+45gx

Find the value of the trig function indicated.

Answers

In the given triangle, we have

[tex]\tan(\theta) = \dfrac{20}{15} = \dfrac43[/tex]

Recall that

[tex]\sin^2(\theta) + \cos^2(\theta) = 1 \implies \tan^2(\theta) + 1 = \sec^2(\theta)[/tex]

Solving for [tex]\sec(\theta)[/tex], we have

[tex]\sec(\theta) = \sqrt{\tan^2(\theta) + 1} = \sqrt{\left(\dfrac43\right)^2 + 1} = \sqrt{\dfrac{25}9} = \boxed{\dfrac53}[/tex]

(D)

Solve for the value of y.
(4y+7)
(3y+5)

Answers

Answer: The value of y is 24.

Step-by-step explanation:

The Measurements of Two Sides of a Triangle are 14 Inches and 18 Inches. Which two Lengths could be the measurements of the third side of the triangle?

3 inches
4 inches
5 inches
31 inches
32 inches

Answers

Answer:

d

Step-by-step explanation:


PLEASE OPEN THE PHOTO AND ANSWER ILL GUVE BRAINLIEST (SORRY FOR SPELLINGing)

Answers

Answer:

Honestly im confused by this but i think its the second one

Step-by-step explanation:

The research question is: Do the data provide evidence that the treatments affect the mean LDL level in this population

Answers

Answer:

hello your question is incomplete attached below is the complete question

answer : The population mean LDL level after six months is same for all four treatments

Step-by-step explanation:

A null hypothesis represents a no difference in the question. therefore the correct option is The population mean LDL level after six months is same for all four treatments

Semester exam please provide explanation for brainlist

Answers

Answer:

c

Step-by-step explanation:

Find the coefficient of x^7 in (x+4)^7​

Answers

Answer: the coefficient of x^7 is 1

Explanation:

(x + 4)^7
= x^7 + 4^7

As we can see there is no coefficient in front of x so therefore it’s equal to 1

Find the diameter of this circle.

A. [tex]2\sqrt{10}[/tex]
B. [tex]4\sqrt{10}[/tex]
C. 8
D. [tex]2\sqrt{34}[/tex]

Answers

Answer:

A

Step-by-step explanation:

From looking at the graph, you can see that the center point of the circle is at (5, -3), so to figure out the diameter, you need to find the distance of that line ( y = - 3 ) that the circle is on. The diameter is about 6 point something which in the square root form can be represented by √36.

After knowing the diameter is about 6, choice C can be eliminated.

2√10 = √40

4√10 = √160

2√34 = √136

After expanding the square root, we can know that the closest option is A.

Check the picture below.

so we know the circle has that center and passes through (2 , -2), let's find its radius, keeping in mind that diameter = 2 * radius.

[tex]~~~~~~~~~~~~\textit{distance between 2 points} \\\\ (\stackrel{x_1}{2}~,~\stackrel{y_1}{-2})\qquad (\stackrel{x_2}{5}~,~\stackrel{y_2}{-3})\qquad \qquad d = \sqrt{( x_2- x_1)^2 + ( y_2- y_1)^2} \\\\\\ \stackrel{radius}{r}=\sqrt{(~~5 - 2~~)^2 + (~~-3 - (-2)~~)^2} \implies r=\sqrt{(5 -2)^2 + (-3 +2)^2} \\\\\\ r=\sqrt{( 3 )^2 + ( -1 )^2} \implies r=\sqrt{ 9 + 1 } \implies r=\sqrt{ 10 }~\hfill \underset{diameter}{\stackrel{(2)(r)}{2\sqrt{10}}}[/tex]

WHAT AM I DOING WRONG?

Write the equation -4x^2+9y^2+32x+36y-64=0 in standard form. Show each step of the process.

Answers

Answer:

you are doing -4. so the first parenthesis -4(x+2x+1) is incorrect.

Step-by-step explanation:

Hope this helps plz hit the crown :D

Answer:

-4(x-4)²+9y(y+4)=0

Step-by-step explanation:

If we put the -64 with the x’s instead of the y’s, we get:

-4x²+32x-64+9y²+36y=0

-4(x²-8x+16)+9y(y+4)=0

-4(x-4)²+9y(y+4)=0

The basketball team took 20 free throws in the game and made 65% of them how many free throws did they make?

Answers

Answer:

its 13

Step-by-step explanation:

Guess my favorite color and I'll give you a brainly if your right

Answers

Step-by-step explanation

Orange

I tried

Answer:

White.

Tan.

Yellow.

Orange.

Red.

Pink.

Purple.

Blue.

Black.

Silver.

Gold.

Rainbow.

QUESTION 3 Let G and H be two events in a sample space. P(G) = 0.4, P(H) = x and P(G or H) = 0.7 3.1 For what value of x are G and H mutually exclusive? (2)​

Answers

For x = 0.33, the events G and H are mutually exclusive.

Here, we are given that-  

P(G) = 0.4

P(H) = x

and P(G or H) = 0.73

⇒ P(G∪H) = 0.73

Now, we know that-

P(G U H) = P(G) + P(H) - P(G ∩ H)

For any two events that are mutually exclusive, the probability that they occur at the same time is 0. Hence, if G and H are mutually exclusive, then P(G ∩ H) will be 0

⇒ 0.73 = 0.4 + x - 0

x = 0.73 - 0.4

x = 0.33

Thus, for x = 0.33, the events G and H are mutually exclusive.

Learn more about mutually exclusive events here-

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