I am taking a test rn and idk what to do for this one, someone help please.

Answer:

not quadratic because there is not a quadrat in it.

Step-by-step explanation:

The graph of a quadratic funtion is a parabola.

The general form of quadratic function is this:

f(x) = ax² + bx + c

Where a, b, and c are numbers.

Please uderstand that a can not be zero, which means that any quadratic function has at least one term with ² in it.

In this example, there is no quadrat visible, so it is not quadratic. By the way, y = -9x + 19 is a so called linear equation. It's graph is a line.

Answer:

50.24inches

Step-by-step explanation:

Your diameter is 8 inches so divide that by two to get a radius of 4 multiply 4 by itself and multiply that (16) by pi.(it gives you 50.24)

40π

You dont need paper hw since we're in quarantine

Answer:40

Step-by-step explanation:

Answer:

72 degrees

Step-by-step explanation:

A pentagon has five lines of symmetry. For rotation symmetry, the order of any regular polygon is the number of sides. The angle of rotation would be 360 degrees divided by that order. Therefore, the answer is 72 degrees.

Answer:

Θ = π radians

Step-by-step explanation:

The central angle is equal to the arc that subtends it, that is

Θ = π

Answer:

work is shown and pictured

Answer:

the answer is 7/10

Step-by-step explanation:

cause i am in honors math 6th grade. I am EXTREMELY smart!!!

Answer:

7/15

Step-by-step explanation:

Answer:

Neither

Step-by-step explanation:

Both equations are x=10

Answer:

8(2+5)=56

Step-by-step explanation:

2+5=7

8x7=56

Answer:

x=14

Step-by-step explanation:

subtract 10 on both sides

24-10=14

x=14

Answer:

x = 14

Step-by-step explanation:

10 + x = 24

-10

x=14

( You subtract 10 from both sides. 24-10 =14. Therefore x =14

Answer:

x < -3/2

Step-by-step explanation:

12x + 7 < -11

Subtract 7 to both sides

12x < -11 -7

= 12x < -18

Solve for x.

x < -18/12

= x < -3/2

Answer:

Engineers use the Pythagorean Theorem to figure out measurements of objects.

Answer:

Wind and biofuel

Step-by-step explanation:

The other are all nonrenewable.

Hope this helps. Also will you friend me so I know if you need any more help I can help you.

Answer: A

Step-by-step explanation:

[tex]f(x)=3x-7\\g(x)=2x^2[/tex]

[tex](f-g)(x)=3x-7-(2x^2)\\(f-g)(x)=3x-7-2x^2\\(f-g)(x)=-2x^2+3x-7[/tex]

Answer: 16

Step-by-step explanation:

8+6+2

Answer:

2

Step-by-step explanation:

Under 13 min - that means at least at 07:13 am, and this is the first column, which shows Two People.

Answer:

Area A = 12 = 1/2 × x × (5x-2)

5x^2 - 2x -24 = 0

Solution;

Base x = 2.4

Height h = 10 ft

Step-by-step explanation:

Given;

base of the triangle is x feet;

Base = x

The height of a triangle is 2 less than 5 times it's base;

Height = 5x - 2

the area of the triangle is 12 square feet;

Area A = 12 ft^2

The area of a triangle is;

Area A = 1/2 × base × height

Substituting the base and height;;

Area A = 1/2 × x × (5x-2)

Area A = 1/2 × (5x^2 - 2x)

Area A = 12

12 = 1/2 × (5x^2 - 2x)

Multiply through by 2.

24 = (5x^2 - 2x)

5x^2 - 2x -24 = 0

Solving the simultaneous equation;

x = 2.4 or -2

Since the base cannot be negative;

x = 2.4 ft

Height h = 5x -2 = 5(2.4) - 2 = 12 - 2 = 10 ft

Base x = 2.4

Height h = 10 ft

Answer:

3√34

17.5

Step-by-step explanation:

Use the Pythagorean theorem: a^2 + b^2 = c^2

a = 9

b = 15

9^2 + 15^2 = c^2

81 + 225 = c^2

306 = c^2

c = 3√34 ≈ 17.5

Answer:

your answer would be 17.5 and i think you are very smart

Step-by-step explanation:

Answer:

4/24

Step-by-step explanation:

Answer:

4/24

Step-by-step explanation:

Answer:

Probability of choosing one club and one spade = 0.6025

Step-by-step explanation:

Total number of cards= 52 cards

For the first event

Probability of choosing a club

Toatal club = 13 cards

Probability of choosing a club

= 13/52

Probability of choosing a club

= 1/4

Probability of choosing a club

=0.25

For the second event

Probability of choosing a spade

Toatal spade = 13 cards

Probability of choosing a spade

= 13/52

Probability of choosing spadep

= 1/4

Probability of choosing a spade = 0.25

Probability of both = 0.25*0.25

Probability of both = 0.6025

Answer:

D. 0.1275

Step-by-step explanation:

Justo took the Pre-Test on Edg (2020-2021)!!

Answer:

y=1

x=2/5

Step-by-step explanation:

1=-5x+3

-2=-5x

x=2/5

Answer:

x = 2/5

Step-by-step explanation:

-5*2/5+3=1

x is 2/5

The complete question is;

Marquis wrote the linear regression equation y = 1.245x - 3.685 to predict the cost, y, of x songs purchased. Marquis spent $40 on songs. Which is the best estimate of the number of songs that Marquis purchased?

Answer:

The best estimate of the number of songs that Marquis purchased = 35 songs

Step-by-step explanation:

First of all, let's make x the subject of the linear regression equation.

 We are given that,

 y = 1.245x - 3.685

 So,

 1.245x = (y + 3.685)

 x = (y + 3,685) / (1,245)

We are told that Marquis spent $40 on songs.

Thus;

Substituting the value of $40 for y into the equation to get;

 x = (40 +3,685)/(1,245)

x = 35.09

x ≈ 35

Thus, the best estimate of the number of songs that Marquis purchased is 35

Answer:

the number of songs that Marquis purchased is 35

Answer:

a. The probability of it not snowing on that particular day is 7/11

b. The probability of it not raining on that particular day is 5/8

Step-by-step explanation:

To answer this question, we need to understand something.

The probability of an event happening and the probability of that event not happening sums up to 1.

This will be our guiding principle in answering this question.

a. Probability of snowing on a given day = 4/11

Probability of not snowing = 1 - probability of snowing = 1-4/11 = 7/11

b. The probability of raining on a particular day = 3/8

The probability of it not raining on that particular day = 1-3/8 = 5/8

Answer:

[tex]\frac{25}{64}[/tex]

Step-by-step explanation:

Blue Marbles =5

Pink Marbles =3

Total =3+5=8

Probability of drawing two marbles with replacement

=P(First Blue Marble AND Second Blue Marble)

=P(First Blue Marble) X P(Second Blue Marble)

[tex]=\frac{5}{8}X \frac{5}{8}\\\\=\frac{25}{64}[/tex]

Answer:

-3(2) x 2 -7 = -6x2-7 =-19

Step-by-step explanation:

The value of f(2) for the given function f(x) = -3x² – 7 will be -19.

A certain kind of relationship called a function binds inputs to essentially one output.

The machine will only accept specified inputs, described as the function's domain, and will potentially produce one output for each input.

As per the given function,

f(x) = -3x² – 7

Put x = 2

f(2) = -3(2)² - 7

f(2) = -2(4) - 7

f(2) = -8 - 7 = -15

Hence "The value of f(2) for the given function f(x) = -3x² – 7 will be -19".

For more about the function,

brainly.com/question/23712366

#SPJ5

Question Completion

a) Find the constant of proportionality.

b) Write an equation relating V and A.

c) How much paint would be needed to cover an area of 180 square feet? Answer:

[tex](a)k=\frac{1}{15} \\\\(b)V=\frac{1}{15}A[/tex]

(c)12 Liters

Step-by-step explanation:

The volume of paint used, V liters, is directly proportional to the area, A square feet, that the paint can cover.

This is written as:

[tex]V \propto A\\V=kA,$ where k is the constant of proportionality[/tex]

(a)5 liters of paint can cover a wall with an area of 75 square feet.

V=5 liters, A=75 square feet.

Substitution into V=kA

5=75k

k=5/75

[tex]\text{Constant of proportionality, k}=\dfrac{1}{15}[/tex]

(b)Substitution of [tex]k=\dfrac{1}{15}[/tex] into V=kA

The equation relating V and A is:

[tex]V=\frac{1}{15}A[/tex]

(c)If A=180 Square feet

Volume of paint needed,

[tex]V=\frac{1}{15} X 180\\=12$ liters[/tex]

Answer: The domains of both f(x) and g(x) must be (–∞, ∞). your welcome

Step-by-step explanation:

Answer:

it's A

Step-by-step explanation:

Answer:

v=169

Step-by-step explanation:

[tex]4v=676[/tex]

Divide by 4.

[tex]v=\frac{676}{4}[/tex]

[tex]v=169[/tex]

Hello!

v = 169

Since it is being multiplied (4v), we're going to have to use the opposite operation to solve. The opposite of multiplication is division.

Divide both sides of the equation by 4:

[tex]\frac{4v}{4}[/tex] = [tex]\frac{676}{4}[/tex]

v = 169