Anderson uses the discriminant to correctly find the number of real solutions of the quadratic equation 2x2 + 4x + 8 = 0.
Which explanation could Anderson provide?
The equation has no real number solutions because the discriminant is 0.
The equation has one real number solution because the discriminant is 0.
O The equation has no real number solutions because the discriminant is less than 0.
The equation has two real number solutions because the discriminant is greater than 0.
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Answer:

Well, since we are not given any graphics or additional information, I'll resort to listing four triangle area formulas:

1) triangle area = (1/2) * base * height

2) Heron's Formula  ("s" = semiperimeter, which is the sum of all 3 sides divided by two)

triangle area = square root [s * (s - side a) * (s - side b) * (s - side c)]

3) For 2 sides and the INCLUDED Angle:

Area = side 1 * sine (angle A) * side 2

Step-by-step explanation:

Answer: What are you doing?

Step-by-step explanation:

At the top, it clearly says to do the quiz without help.

Answer:

x=-9

Step-by-step explanation:

6x=-54

Divide both sides by 6.

-54/6 = -9

x=-9

Look at the attached picture

Hope it will help you

We have been given that a new car, originally worth $35,795, depreciates at a rate of 17% per year. The value of the car can be represented by the equation [tex]y=35795(0.83)^x[/tex], where x represents the number of years since purchase and y represents the value (in dollars) of the car.

To find the value of car of after 5 years, we will substitute [tex]x=5[/tex] in our given equation as:

[tex]y=35795(0.83)^5[/tex]

[tex]y=35795\cdot (0.3939040643)[/tex]

[tex]y=14099.79598[/tex]

Upon rounding to nearest tenth, we will get:

[tex]y\approx 14099.8[/tex]

Therefore, the car will be worth $14,099.8 after 5 years it is first purchased.

Since $14,099.8 is less than original value of car, therefore, we know hat value of car is depreciating and $14,099.8 is correct answer.

We also know that an exponential decay function is in form [tex]y=a(1-r)^x[/tex], where,

y = Final value after t years,

a = Initial value,

r = Decay rate in decimal form,

x= Time.

[tex]17\%=\frac{17}{100}=0.17[/tex]

[tex]y=35795(1-0.17)^x[/tex]

[tex]y=35795(0.83)^x[/tex]

Given that an object with a mass of 54kg travels at 15m/s^2, determine the kinetic energy of the object.

KE =  0.5 x mv^2

M (mass) = 54kg

V (velocity) = 15m/s^2

Then, we plug the values in.

KE =  0.5 x 54(15^2)

Now, we solve.

KE = 0.5 x 54(225)

KE = 0.5 x 12150

KE = 6075

Now, that we have solved the formula, we can see that the kinetic energy of the object is 6,075J.

Thus, the kinetic energy of the object is 6,075J.

Answer:

DB is a chord, CG is the radius, AB is the diameter, and MN is a secant.

Answer:

see below

Step-by-step explanation:

The diameter goes from one side to the other passing through the middle

AB is the diameter

Radius goes from one side to the middle

AC or BC is the radius

The chord connects two points on the circles edge

BD AB  are chords

Secant is a line that intersects the circle at two points

MN is the secant

Answer:

80

Step-by-step explanation:

if 1=40

2 = x

1*x=2*40

x=80

Answer:

80 ounces

Step-by-step explanation:

Let x ounces of gas is needed for 3 ounces of oil.

[tex] \therefore \: \frac{40}{1} = \frac{x}{2} \\ \therefore \: x = 40 \times 2 \\ \huge \purple{ \boxed{\therefore \: x = 80 \: ounces}} \: [/tex]

Answer:

a is the correct answer in e2020

Step-by-step explanation:

Based on the calculations, the row operation (-2R₁ + R₂ → R₂) is equal to:[tex]\left[\begin{array}{cccc}3&12&8&102\\0&-6&-6&-42\\0&15&5&85\end{array}\right][/tex]

First of all, we would write a matrix to represent the number of tickets sold and the total cost of the tickets for three performances as follows:

                   [tex]\left[\begin{array}{cccc}3&12&8&102\\6&10&6&102\\0&15&5&85\end{array}\right][/tex]

Next, we would perform this row operation (-2R₁ + R₂ → R₂):

[tex]\left[\begin{array}{cccc}3&12&8&102\\(-2\times 3+6)&-2\times 12+18)&-2\times 6+6)&-2\times 102+162)\\0&15&5&85\end{array}\right][/tex]

Evaluating further, we have:

[tex]\left[\begin{array}{cccc}3&12&8&102\\0&-6&-6&-42\\0&15&5&85\end{array}\right][/tex]

Read more on matrix equation here: https://brainly.com/question/16980134

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Complete Question:

The drama club at a local high school sells adult, teen, and child tickets for a school play. The matrix below represents the tickets sold and the total cost of the tickets for three performances.

[tex]\left[\begin{array}{cccc}3&12&8&102\\0&-6&-6&-42\\0&15&5&85\end{array}\right][/tex]

What is the result of performing the row operation (-2R₁ + R₂ → R₂) on this matrix?

Answer:

168in

Step-by-step explanation:

Answer:

4/5

Step-by-step explanation:

took it on edg

The value of cos(M) is determined as Four-fifths (4/5).

The length of the adjacent side of the right triangle is calculated as follows;

adj² = hyp² - opp²

adj² = 25² - 15²

adj² = 400

adj = √400

adj = 20

Value of cos(M)

Cos (M) = adj/hypo

Cos (M) = 20/25

Cos (M) = 4/5

Thus, the value of cos(M) is determined as Four-fifths (4/5).

Learn more about right triangle here: https://brainly.com/question/2437195

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Answer:

its 6

Step-by-step explanation:

The answer is 6 because inequality means -Inequality (mathematics), a relation between two values when they are different.

Answer:

Step-by-step explanation:

-7

Answer:

72 dessert options available

Step-by-step explanation:

3*6*4=72

Answer:

c

Step-by-step explanation:

Answer:

The answer is c look at the picture below

Step-by-step explanation:

Answer:

Mark earns 12 dollars an hour, and Steven earns 15 dollars.

Mark earned 6*12=72 dollars, and Steven earned 15*5=75 dollars.

Step-by-step explanation:

Let's set Mark's salary as x.

Steven=x+3

Last Friday, Steven earned 5(x+3) dollars, while Mark earned 6x dollars.

We can write the sum of these salaries as:

5(x+3)+6x=147

5x+15+6x=147

11x+15=147

11x=132

x=12

Then, we can substitute x with 12.

Mark earns 12 dollars an hour, and Steven earns 15 dollars.

Mark earned 6*12=72 dollars, and Steven earned 15*5=75 dollars.

Answer: Mark earns 12 dollars an hour, and Steven earns 15 dollars.

Mark earned 6*12=72 dollars, and Steven earned 15*5=75 dollars

Step-by-step explanation:

Answer:

(4,-3)

Step-by-step explanation:

This is where the 2 lines meet

Answer:

- 1/2

Step-by-step explanation:

edit (sorry i was wrong)

Answer:

€14.22

Step-by-step explanation:

0.79 × 18 = 14.22

Answer:

Choice 2

Step-by-step explanation:

1 dollar: 0.79 euros=

18 dollars:x euros

x=18*0.79 or 14.22 euros. Hope this helps!

Answer:

840 cm³

Step-by-step explanation:

In the figure attached, the prism is shown.

The prism can be divided into two rectangular prisms, one at the top, with dimensions 5 x 4 (= 12 - 8) x 6 cm, and the other one at the bottom with dimensions 15 x 6 x 8 cm.

Area of the first prism: 5*4*6 = 120 cm³

Area of the second prism: 15*6*8 = 720 cm³

Then, the volume of the complete prism is 120 + 720 = 840 cm³

The required total volume of the complete prism is 840 cm³.

We have to determine, The volume of the prism 5cm,12,cm 15cm,6cm 8cm.

According to the question,

The prism can be divided into two rectangular prisms,

First part at the top, with dimensions [tex]= 5 \times 4 \times( 12 - 8) = 5\times 4 \times 6 cm,[/tex]

And the other part one at the bottom with dimensions [tex]= 15 \times 6 \times 8 cm.[/tex]

Area of the first prism: [tex]5\times4\times6 = 120 cm^{3}[/tex]

Area of the second prism: [tex]15\times6\times8 = 720 cm^{3}[/tex]

Then, The Total volume of the complete prism is 120 + 720 = 840 cm³

Hence,  The required total volume of the complete prism is 840 cm³.

For more information about Area click the link given below.

https://brainly.com/question/19305981

Answer:

this is a no solution

Step-by-step explanation:

Answer:

n=15

Step-by-step explanation:

20n=300

divide by 20 on both sides

20n/20=n

300/20=15

n=15

Answer:

Correct answer is c.) [tex]f(x)=(x-2)^2-1[/tex]

Step-by-step explanation:

The vertex form of a parabola can be written as following:

[tex]y = a(x-h)^2 + k ....... (1)[/tex]

[tex](h,k)[/tex] is the co-ordinate of vertex.

[tex]a[/tex] is a constant whose positive or negative value decides where the parabola opens (up or down).

[tex](x,y)[/tex] are the points on parabola.

[tex]y[/tex] and [tex]f(x)[/tex] are interchangeable terms. We can use any of them.

For convenience with the co-ordinates in [tex]xy-[/tex]plane, [tex]y[/tex] is used here.

We are given that vertex is at (2,-1) and there is a point (5,8) on the curve.

i.e. h = 2 and k = -1,

x = 5 and y = 8

Putting the four values in equation (1):

[tex]8 = a(5-2)^2 + (-1)\\\Rightarrow 8 = a(9) -1\\\Rightarrow 9 = 9a \\\Rightarrow a = 1[/tex]

Putting values of [tex]a[/tex] and [tex](h,k)[/tex] in equation (1) to find the equation of parabola:

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

As told earlier as well, [tex]y[/tex] and [tex]f(x)[/tex] are interchangeable terms.

So, correct equation of parabola is option C) [tex]f(x)=(x-2)^2-1[/tex]

Answer:

It's the last one: One-sixth n minus 2 = negative two-thirds

Step-by-step explanation:

Hope this helps!!

Answer:

No, she will go $3.15 above 40.

Step-by-step explanation:

1. Since the tip is 15%, you can either multiply 37.52 by 1.15 or 0.15. In the route of multiplying by 0.15, you need to add it to 37.52. I will multiply by 1.15 to make it easier.

2. 37.52x1.15 = 43.148 or about $43.15 (rounded).

Answer:

It would cost $232.32, this answer is rounded.

Step-by-step explanation:

The formula for the volume of a square pyramid is:

[tex]V=a^2\frac{h}{3}[/tex]

So its just:

[tex]8.8^2\frac{12.5}{3} = 322.67 cm^3[/tex]

Then you just multiply the volume by the cost per cubic centimetre:

[tex]322.67cm^3*$0.12=$38.704[/tex]

After just multiply the cost of one by how many you want, which is 6:

[tex]38/704*6=232.32[/tex]

The cost to manufacture 6 paper weight is $232.32

where

b = base

h = height

Therefore,

v =  1 / 3 × 8.8² × 12.5

v = 1 / 3 × 77.44 × 12.5

v = 968 / 3

v = 322.666666667 cm³

1 cm³ = $0.12

322.67 cm³ = ?

cost of a paperweight = 322.67 × 0.12 = $38.72

Therefore,

1 paper weight = $38.72

6 paper weight = ?

cross multiply

cost of 6 paper weight = 6 × 38.72

cost of 6 paper weight = $232.32

learn more on square pyramid here; https://brainly.com/question/16978043?referrer=searchResults

Answer:=0,4

Step-by-step explanation:

Answer:

Tim's box volume is 27 times greater than Emmy's.

Step-by-step explanation:

The volume of a cube is given by the following expression:

volume = l³

Since Emmy's cube have a 3 centimeters long edge, then it's volume is:

volume1 = 3³ = 27 cm³

On the other hand Tim's cube has an edge that is 3 times as long as Emmy's, so it's 9 centimeters long. Therefore it's volume is:

volume2 = 9³ = 729 cm³

The relation between the volume is given by:

ratio = volume2/volume1 = 729/27 = 27

Tim's box volume is 27 times greater than Emmy's.

Answer:

49.9

Step-by-step explanation:

Unimodal means one hump; symmetric means there's a central axis of symmetry, here at x=4.  

Answer: B. Unimodal symmetric

Answer: I believe that answer is D.

Step-by-step explanation:

-The angle below it is also 120 degrees.

-It definitely can’t be 35 or 60 degrees because the angle is bigger than a right angle.

Right angle-is 90 degrees exactly

Hope this helps!

Answer:

yeah its most definitly D

Step-by-step explanation:

...

Answer:

d

Step-by-step explanation: