PLS HELP ! 100 POINTS!!!!! Select the correct answer. This graph represents a quadratic function. What is the value of a in the function’s equation?

PLS HELP ! 100 POINTS!!!!! Select The Correct Answer. This Graph Represents A Quadratic Function. What

Answers

Answer 1

Answer:

a = 3

Step-by-step explanation:

The vertex form of a quadratic is

y = a(x-h) ^2 +k  where ( h,k) is the vertex

the vertex is (-2,2)

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

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

Pick another point on the graph to determine a

(-1,5) and substitute into the equation

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

5 = a(1)^2 +2

5 = a(1) +2

Subtract 2 from each side

5-2 = a+2-2

3 = a

Answer 2

Answer:

A=3

Step-by-step explanation:

I got it right on the test


Related Questions

Find the length of the segment with endpoints A(4,12) and B(7,16) ?

Answers

it should be (5.5, 14)

WILL MARK BRAINLIEST! please help! Find the measure of the indicated angle to the nearest degree.

Answers

Answer:

14

Step-by-step explanation:

Nadeem has 160 bottle caps in his bottle cap collection. He has 32 times more bottle caps in his collection then Benson. How many bottle caps does Benson have in his collection

Answers

Answer:

Benson has 5,120 bottle caps.

Step-by-step explanation:

160x32

what is value of X on this triangle

Answers

Answer:

x = 11.4715

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Equality Properties

Trigonometry

[Right Triangles Only] SOHCAHTOA [Right Triangles Only] sinθ = opposite over hypotenuse

Step-by-step explanation:

Step 1: Define

Angle θ = 35°

Opposite Leg = x

Hypotenuse = 20

Step 2: Solve for x

Substitute [Sine]:                     sin35° = x/20Isolate x:                                  20sin35° = xRewrite:                                    x = 20sin35°Evaluate:                                  x = 11.4715

YALL PLZ HELP WILL GIVE THANKS+BRANLIEST AND I REALLY NEED HELP! the length of the box is 2 1/2m, it is 1 9/16 times its width. what is the height of the box if its volume is 12 3/4m3?

Answers

Answer:

3.19 m

Step-by-step explanation:

L = 2.5

W x 25/16 = 2.5

w = 2.5 x 16 / 25 = 1.6

LWH = V

H = V / LW = (12 3/4) / (2.5 x 1.6) = 3.19

-4(p + 1) = 2(8 --2p)

Step by step explanation please

Answers

Answer:

Step-by-step explanation:

I hope this helps !!

Can sum kne s help I need it

Answers

The answer is 1 no solution

Step-by-step explanation:

-17z - 12 + 15z = -12 - 2z

-2z - 12 = -2z - 12

-12 = -12

Since this statement is always true for all real values of z, there are infinitely many solutions.

Determine the equation of the line that passes through the given points (if you have a graphing calculator, you can us the table feature to confirm that the coordinates of both points satisfy your equation)

(-5, 10) and (5, -10)

a. y = 2x -10
b. y = 2x
c. y = -2× + 20
d. y = -2×

Answers

Answer:

d. y = -2×

Step-by-step explanation:

First to solve find the slope using the formula, [tex]\frac{10+10}{-5-5}[/tex]. The slope equals 20/-10 or -2. Then plug the slope and point, (-5,10), into slope-point form. y-10=-2(x+5), then solve for y. This gives you y=-2x+0 or y=-2x.

Suppose you obtained a Spearman rs of 0.53 from a sample of 13 pairs of scores. For a two-tailed test, such a correlation coefficient is:_____

a. not statistically signficant
b. p <.001
c. p < .01
d. p < .05

Answers

Answer:

C: p < 0.01

Step-by-step explanation:

We are given;

Spearman rank Correlation Coefficient: rs = 0.53

sample size: n = 13 pairs

Now, from the table attached, tracing n = 13 and locating a corresponding value of rs = 0.53 which falls in between 0.484 and 0.56. Thus, we can see that p is greater than the nominal significance value of 0.05 but less than 0.01.

Thus, correct answer is p < 0.01

PLEASE HELP DUE IN 5 MIN

Answers

The answer to this question is you do 16 and take half of that and that will be your other sides

25/8 in decimal form

Answers

Answer:

3.125

Step-by-step explanation:

Answer:

25/8 in a decimal form is

Step-by-step explanation:

3.125

Find another way to name the plane M shown in the figure

Answers

Answer:

Plane RTS

Step-by-step explanation:

Answer: Choice D) Plane PQY

==========================================================

Explanation:

By definition, a plane is formed by 3 non-collinear points. The three points cannot all be on the same line. If you had 3 points on the same line, then infinitely many planes are possible. Imagine the plane spins around the line as a sort of fan blade.

Choice A can be ruled out because points R, T, and S are all on the same line. They are collinear points. Using these three points is not enough to properly identity/label this plane, since infinitely many other planes could result.

Choices B and C can also be ruled out for similar reasons.

Choice D is correct because points P, Q, and Y are all in plane M, and also because they are not all on the same line.

Side note: another way to phrase "a plane is formed by 3 non-collinear points" is to say "a plane is formed by 3 points that form a triangle".

Ms Patel purchased some pliers, wrenches, and chisel sets for her shop. She bought twice as many pliers that cost $17.50 each as wrenches that cost $21.50 each. She bought 3 fewer chisel sets than pliers. How many of each tool did Ms Patel buy if she paid a total of $141 and the price of each chisel set is $28?

Answers

Answer:

Ms Patel bought 4 pliers, 2 wrenches and 1 plier set.

Step-by-step explanation:First, make a ratio. For every 2 wrenches, she bought 4 pliers and 1 chisel set. This ratio would be written as (in pliers:wrenches:chisels)

        4:2:1

Then, multiply each of these numbers by their price, and add them together.

        PLIERS: 4 × 17.50 = $70

        WRENCHES: 2 × 21.50 = $43

        CHISEL SETS: 1 x 28 = $28

        TOTAL = $70 + $43 + $28 = $141

As this adds up to $141, this shows that she bought 4 pliers, 2 wrenches and 1 chisel set.

Mrs Patel purchased 2 wrenches, 4 pliers, and 1 chisel set for her shop.

I hoped this helped!

Which expression is equivalent to (1/2(cos(pi/5)+ i sin(pi/5)))^5

a. 1/32(cos(pi/5) + i sin (pi/5))
b. 1/32(cos(pi) + i sin (pi))
C. 1/10(cos(pi/5) + i sin (pi/5))
d. 1/10(cos(pi) + i sin (pi))

Answers

Answer:

B

Step-by-step explanation:

did the course

The equivalent complex expression of [tex](\frac{1}{2}(cos(\frac{\pi}{5} )+i~sin(\frac{\pi}{5} )) )^5[/tex] is

[tex]\frac{1}{32} (cos(\pi)+i~sin(\pi))[/tex]

The correct answer is an option (b)

What is complex number?

"The number of the form a + ib, where a, b are real numbers and [tex]i=\sqrt{-1}[/tex]"

What is De Moivre's theorem?

"This theorem gives a formula for computing powers of complex numbers.

[tex](r(cos\theta+i~sin\theta))^n=r^n~(cos(n\theta)+i~sin(n\theta))[/tex] "

For given question,

We have been given a complex expression [tex](\frac{1}{2}(cos(\frac{\pi}{5} )+i~sin(\frac{\pi}{5} )) )^5[/tex]

Using the DeMoivre's theorem,

[tex](\frac{1}{2}(cos(\frac{\pi}{5} )+i~sin(\frac{\pi}{5} )) )^5\\\\=(\frac{1}{2})^5~((cos(\frac{\pi}{5} )+i~sin(\frac{\pi}{5} )) )^5\\\\=\frac{1}{32} (cos(\frac{5\pi}{5} )+i~sin(\frac{5\pi}{5} )) )\\\\= \frac{1}{32} (cos(\pi)+i~sin(\pi))[/tex]

Therefore, the equivalent complex expression of [tex](\frac{1}{2}(cos(\frac{\pi}{5} )+i~sin(\frac{\pi}{5} )) )^5[/tex] is

[tex]\frac{1}{32} (cos(\pi)+i~sin(\pi))[/tex]

The correct answer is an option (b)

Learn more about the De Moivre's theorem here:

https://brainly.com/question/17211848

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you get paid $8 an hour. you make $35 in tips. you make $167.00 in a week. how many hours did you work. write an equation to the problem.

Answers

Answer:

I belive the equation would be...

Step-by-step explanation:

8x+$35=$167.00

Hope it helps??

Answer

they worked 16.5 hours that week.

Step-by-step explanation:

You first subtract the tip by the total cost and that gives you $132.00. and from that cost you divide by $8 which they get paid by the hour... and then you get the 16.5 and that means they worked 16.5 hours that week.

z=−24i−19
Re(z)=
Im(z)=

Answers

9514 1404 393

Answer:

Re(z) = -19Im(z) = -24

Step-by-step explanation:

There is some disagreement over whether the "imaginary part" includes the factor "i" or not. Here, we assume it is simply the coefficient of i.

  Re(z) = -19 . . . . the part that does not have a factor of i

  Im(z) = -24 . . . . the coefficient of i

HELP PLEASE PLEASE PLEASE!!!! WILL GIVE BRAINLIEST

Answers

9514 1404 393

Answer:

  y ≈ 12.3

Step-by-step explanation:

The mnemonic SOH CAH TOA is intended to help you remember the relationship between trig functions and side of a right triangle. In particular, when the adjacent side and hypotenuse are involved, the desired relation is ...

  Cos = Adjacent/Hypotenuse

  cos(35°) = y/15

  y = 15·cos(35°)

  y ≈ 12.3

- 1 13 and its opposite on a number line.

Answers

Answer:

-113 and 113

Step-by-step explanation:

I'm not sure exactly what you mean by -1 13, so I'll assume you mean -113.

It's opposite would be 113.

If what you mean is -1 1/3 then it would be -4/3

Hope I helped

Cameron has 75% as many shirts as her brother how many shirts does your brother have if Cameron has nine shirts

Answers

The explanation is in the picture

Hamburger costs $1.49 for 1/2 pound. How much would the hamburger cost for a whole pound?

Answers

Answer:$2.98

Step-by-step explanation:

Find the domain of the function f(t)=√t +3√t

Answers

Answer:

[tex]\mathrm{Domain\:of\:}\:4\sqrt{t}\::\quad \begin{bmatrix}\mathrm{Solution:}\:&\:t\ge \:0\:\\ \:\mathrm{Interval\:Notation:}&\:[0,\:\infty \:)\end{bmatrix}[/tex]

The graph is also attached below.

Step-by-step explanation:

Given the expression

[tex]f\left(t\right)=\sqrt{t}\:+3\sqrt{t}[/tex]

We know that the domain of a function is the set of inputs or argument values for which the function is real and defined.

We know that we can not have a negative value of 't' inside the radicals because if we put any negative number inside the radical expression, it would make the function undefined.

In other words,  the value of t ≥ 0.

Therefore, the function domain is:

[tex]\mathrm{Domain\:of\:}\:4\sqrt{t}\::\quad \begin{bmatrix}\mathrm{Solution:}\:&\:t\ge \:0\:\\ \:\mathrm{Interval\:Notation:}&\:[0,\:\infty \:)\end{bmatrix}[/tex]

The graph is also attached below.

The temperature at the point (x, y, z) in space is given by T ( x, y, z) = x + yz. A fly is at the point (1, 2, 1). In what direction should he begin to fly to cool off as quickly as possible. Your answer should be a unit vector in the requested direction.

Answers

Answer:

[tex]u= -\frac{1}{\sqrt{6}} ,-\frac{1}{\sqrt{6}} ,-\frac{2}{\sqrt{6}}[/tex]

Step-by-step explanation:

From the question we are told that

Temperature is given [tex]T ( x, y, z) = x + yz.[/tex]\

A fly is at (1,2,1)

Generally the direction of fly is given by

     

      [tex]\triangleT(x,y,z) =(1,z,y)\\[/tex]

       [tex]v= \triangleT(1,2,1)\\v=(1,1,2)[/tex]

Mathematically solving for the vector direction

       [tex]|v|=\sqrt{1^2+1^2+2^2}[/tex]

       [tex]|v|=\sqrt{6}[/tex]

       [tex]u=- \frac{v}{|v|}[/tex]

       [tex]u= -\frac{1}{\sqrt{6}} ,-\frac{1}{\sqrt{6}} ,-\frac{2}{\sqrt{6}}[/tex]

Therefore this the direction which should be taken to cool down soonest

I need help pls help

Answers

Hi so we’re finding the volume of the prism so let’s get started!

Just a reminder the formula of finding the volume of this prism is V=l*w*h

Now we need to substitute these following numbers in this list which is going to make 8 the length, 2 the width and 5 the height.

So v=2(5)(8)

10(8)=80 cubic units

Therefore the volume of the prism in this following problem is going to be 80 cubic units.

Answer:

v = 80 cubic units

Step-by-step explanation:

The formula for a rectangular prism is: v = lwh

l = length

w = width

h = height

v = 8 x 2 x 5

v = 16 x 5

v = 80

I hope this helped and if it did I would appreciate it if you marked me Brainliest. Thank you and have a nice day!

What is 1/5 ÷ 1/2 ? Explain or show your reasoning.

Answers

Answer:

The answer is 2/5.

Step-by-step explanation:

First, use the stay-switch-flip method. Keep 1/5 the same, switch the division sign into a multiplication sign, and flip the numerator and the denominator of 1/2 to get 1/5 x 2/1. Multiply the numerators. 1 x 2 = 2. Now, multiply the denominators. 5 x 1 = 5. Therefore, you're answer is 2/5.

Hope this helps! Please mark Brainliest.

Henrik grew 3 times as many potatoes as Derek grew. Derek managed to grow 49 potatoes. Henrik already had 173 potatoes harvested from his other field. How many potatoes does Henrik have in all?

Answers

Answer: Henrik grew 147 more potatoes than Derek

Step-by-step explanation:

Which ordered pair is a solution to the inequality 7x-3y>10?

Answers

it ain't possible.

unless Either X's value is given for u to get y.

All pairs such that x is > 4 and y = 6 are solutions.

It is given that ordered pair is a solution to the inequality 7x-3y>10.

What is inequality?

The definition of inequality is a difference in size, amount, quality, social position or other factor.

Now, characterize these solutions

if 7x - 3y > 10 then

7x > 10 +3y

Now we can substitute any value for y and get the appropriate value for x. For example I can choose y to be 6

then by substitution

7  must be > 10+ 3*6

or 7x must be > 28

or x must be > 4

So, all pairs such that x is > 4 and y = 6 are solutions.

Learn more details about inequality here:

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Add the expression 4-2/3

Answers

Answer:

add the whole thing or just 4-2/3

Step-by-step explanation:

On the average, a grocer sells three of a certain article per week. How many of these should he have in stock so that the chance of his running out within a week is less than 0.01

Answers

Answer:

7

Step-by-step explanation:

This is a Poisson distribution problem with the formula;

P(x;μ) = (e^(-μ)) × (μ^(x))/x!

We are told that the grocer sells three of a certain article per week. Thus;

μ = 3

Now, we want to find out How many of these should he have in stock so that the chance of his running out within a week is less than 0.01.

This means;

P(X > k) < 0.01

This can be rewritten as;

P(X ≤ k) < 0.99

Let's try x = 8

P(8;3) = (e^(-3)) × (3^(8))/8!

P(8;3) = 0.008

But; P(X ≤ 8) = 1 - 0.008 = 0.992

This is more than 0.99 and thus is not the answer

Let's try x = 7

P(7;3) = (e^(-3)) × (3^(7))/7!

P(7;3) = 0.022

But; P(X ≤ 7) = 1 - 0.022 = 0.978

Thus is less than 0.99.

Thus, stock should be 7

Question 1
Write a conjecture that describes the pattern in the sequence, and then use the conjecture to find the next term in the sequence.
2,8, 32, 128,...
100 words remaining

Answers

Answer:

T5 = 512

Step-by-step explanation:

Given the sequence

2,8, 32, 128,...

The sequence is a geometric progression

nth term of a geometric progression is expressed as:

Tn = ar^n-1

a is the first term = 2

n is the number of terms = 5 (next term is the 5th term)

r is the common ratio = 8/2 = 32/8 = 4

Substitute and get the fifth term

T5 = 2(4)^5-1

T5 = 2(4)^4

T5 = 2*256

T5 = 512

Hence the next term is 512

At the school carnival, the sixth graders are making directional arrows, as shown below.
6 inches
10 inches
7 inches
4 inches
Each arrow is to be painted red. How much area needs to be painted for 1 arrow? (1 point)

Answers

i believe the answer is 37 square inches. i think this because when you find the area of the triangle on top it is equal to 9 inches and when you find the area of the rectangle you get 28 inches and 9+28=37
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