2.) which number could not be a value of y if:
y = 4x2-6
a.) 30
b.) 10
c.) -6
d.)-12

Answers

Answer 1

The number that could not be a value of y if y = 4x² - 6 is -12.

What is the value of y for a function of f(x)?

The value of y for which a function f(x) = y = 4x² - 6 can be determined by knowing the smallest value of y for which x is equal to zero.

So, from the equation y = 4x² - 6, we will replace the value of x with zero to determine the smallest value of y.

i.e.

y = 4(0) - 6

y = 0 - 6

y = -6

Thus, any number smaller than -6 could not be a value of y for the equation y = 4x² - 6.

Therefore, we can conclude that the number that could not be a value of y if y = 4x² - 6 is -12.

Learn more about the function of f(x) here:

https://brainly.com/question/24748644

#SPJ1

Answer 2

Answer:

-12 is the answer.


Related Questions

A timer is started and a few moments later a model airplane is launched from the ground. Its height (in feet) as a function of time (in seconds after the timer was started) is given by the equation h(t)=−(t−12)2+81

. Which of the following statements is true?

The airplane reaches its minimum height of 12 feet in 81 seconds.
The airplane reaches its maximum height of 81 feet in 12 seconds.
The airplane reaches its minimum height of 81 feet in 12 seconds.

The airplane reaches its maximum height of 12 feet in 81 seconds.

Answers

The statement which is true is the airplane reaches its maximum height of 81 feet in 12 seconds.

Since the height of the plane is a function given by a parabola, we need to know the equation of a parabola in vertex form

What is the equation of a parabola in vertex form?

The equation of a parabola with vertex (h,k) is given by y = a(x - h) + k

Since the height (in feet) of the airplane as a function of time (in seconds after the timer was started) is given by the equation h(t) = −(t − 12) + 81

Since this is the equation of a parabola in vertex form, comparing h with y, we have that a = -1, h = 12 and k = 81Since a = -1 < 0 this implies that the point (h, k) = (12, 81) is a maximum point

So, the statement which is true is the airplane reaches its maximum height of 81 feet in 12 seconds.

Learn more about equation of a parabola in vertex form here:

https://brainly.com/question/17684824

#SPJ1

Selma's house is 1,450 cm long. How many meters
long is Selma's house?

Answers

Answer:

14.5 Meters

Step-by-step explanation:

1 centimeter= 0.01 Meters

1450 cm x 0.01 =14.5

Write an equation for each translation y=sin x, pi/4 units to the right

Answers

The equation of the translation is y = sin(x - π/4)

How to determine the translation?

The equation is given as:

y = sin(x)

The rule of translation to the right is:

(x,y) => (x - h,y)

This gives

(x,y) => (x - π/4,y)

So, we have:

y = sin(x - π/4)

Hence, the equation of the translation is y = sin(x - π/4)

Read more about translation at:

https://brainly.com/question/24850937

#SPJ1

A plane has a speed of 840 km/h in still air. It can travel 3120 km with the wind in the same time it would take to travel 1920 km against the wind. Find the speed of the wind.​

Answers

Answer:

200 KM/H

Step-by-step explanation:

A plane has a speed of 840 km/h in still air. It can travel 3120 km with the wind in the same time it would take to travel 1920 km against the wind. Find the speed of the wind.

let x=speed of wind

(840+x)=speed of plane with wind

(840-x)=speed of plane against wind

Travel time = distance/speed (same with and against the wind)

3120/(840+x)=1920/(840-x)

cross-multiply

3120*840-3120x=1920*840+1920x

3120*840-1920*840=1920x+3120x

5040x=1008000

x=200 km/hr

answer

Speed of wind=200 km/hr

Pls help! I don't get this!!

Answers

Answer:

5;   2n + 5 ≤ 15

6;   n/5 ≤ 15

7;   5n ≥ 15

Step-by-step explanation:

"a number" means a variable denoted "n"

"product" means to multiply

"quotient" means to divide

"The sum" means to add

"is at least" means greater than or equal to or  ≥

"is no greater than" means less than or equal to or ≤

"Is at most" means less than or equal to or ≤

What is this and how do you solve it

Answers

b²-4ac is the discriminant (D)!

you use it when you have a second degree function and want to find the x. If:

D<0 -> no x that we can find

D=0 -> 1 answer for x

D>0 -> 2 answers for x

when your D is = or > 0 then you use these formulas to find the x:

x1= (-b-VD)/2a

x2= (-b+VD)/2a

example1:

f(x)=2x²+3x+4=0

D= b²-4ac

= 3²-4×2×4

=9- 32

=-23

-> no answers for x

example2:

f(x)=2x²+5x+2=0

D= 4²-4×2×2

= 25-16

=9

x1= (-b-VD)/2a

= (-5-3)/4

= -8/4

=-2

x2= (-b+VD)/2a

= (-5+3)/4

=-2/4

=-1/2

A number cube with the numbers 1 through 6 is rolled. What is the theoretical probability, as a decimal, of the number cube showing a 1? Round the decimal to the nearest hundredth

Answers

Answer:

0.17 (rounded)

Step-by-step explanation:

There's only one way a 1 can appear on a number cube out of 6 possible sides. Thus, the theoretical probability of the number cube showing a 1 is 1/6, or 0.17 rounded.

What substitution should be used to rewrite 6(x 5)2 5(x 5) – 4 = 0 as a quadratic equation?

Answers

The answer is u=(r+5)

Quadrilateral RSTU is a rectangle and m/RVU = 72°.

What is m/VRU?

Answers

Answer: [tex]18^{\circ}[/tex]

Step-by-step explanation:

In triangle RUV, angle RUV is a right angle (and thus measures 90 degrees), and angle RVU measures 72 degrees.

Since angles in a triangle add to 180 degrees, angle VRU measures

180-90-72=18 degrees

What is the next fraction in this sequence? Simplify your answer.
13/23, 1/2, 10/23, 17/46,
...
Submit

Answers

Answer:

7/23

Step-by-step explanation:

Each answer is 1.5/23 less than the previous

17/46  - 1.5/23 =   17/46 - 3/46 = 14/46 = 7/23

I need help with 7 8 and 9 question perimeter and area

Answers

The perimeter and area of the equilateral, isosceles and right angled triangle are  16.2mm 12.6mm², 15.2in and 9.61in², 21.47yds and 16.81yds² respectively.

What is the area of the equilateral, isosceles and right angle triangle?

Note that:

The perimeter of an Equilateral triangle is expressed as P = 3a

The area of an Equilateral triangle is expressed as A = ((√3)/4)a²

Where a is the dimension of the side.

The perimeter of an Isosceles triangle is expressed as P = 2a + b

The area of an Isosceles triangle is expressed as A = (ah)/2

Where b is the slant height, a is the dimension of the base and h is the height.

The perimeter of a Right angled triangle is expressed as P = a + b + c

The area of a Right angled triangle is expressed as A = (ab)/2

Where a and b is the dimension of the two sides other than the hypotenuse and c is the hypotenuse.

For the Equilateral triangle.

Given that;

a = 5.4mmPerimeter P = ?Area A = ?

Perimeter P = 3a

P = 3 × 5.4mm

P = 16.2mm

Area A = ((√3)/4)(5.4mm)²

A = ((√3)/4)( 29.16mm² )

A = 12.6mm²

The Perimeter and Area of the Equilateral triangle are 16.2mm 12.6mm² respectively.

For the Isosceles triangle.

Given that;

Base a = 3.4inSlant height b = 5.9inPerimeter P = ?height h = ?Area A = ?

Perimeter P = 2a + b

P = 2(b) + a

P = 2(5.9in) + 3.4in

P = 11.8in + 3.4in

P = 15.2in

The height h is the imaginary line drawn upward from the center of a.

First, we calculate the height using Pythagorean theorem

x² = y² + z²

Where x = b = 5.9in, y = a/2 = 3.4in/2 = 1.7in, and z = h

(5.9in)² = (1.7in)² + h²

34.81in² = 2.89in² + h²

h² = 34.81in² - 2.89in²

h² = 31.92in²

h = √31.92in²

h = 5.65in

Now, the area will be;

A = (ah)/2

A = (3.4in × 5.65in )/2

A = 19.21in²/2

A = 9.61in²

The Perimeter and Area of the Isosceles triangle are 15.2in and 9.61in² respectively.

For the Right angled triangle.

Given that;

a = 8.2ydsb = 4.1ydsc = 9.17ydsPerimeter P = ?Area A = ?

Perimeter P = a + b + c

P = 8.2yds + 4.1yds + 9.17yds

P = 21.47yds

Area A = (ab)/2

A = ( 8.2yds × 4.1yds)/2

A = ( 33.62yds²)/2

A = 16.81yds²

The Perimeter and Area of the Right angled triangle are 21.47yds and 16.81yds² respectively.

Therefore, the perimeter and area of the equilateral, isosceles and right angled triangle are  16.2mm 12.6mm², 15.2in and 9.61in², 21.47yds and 16.81yds² respectively.

Learn more about Pythagorean theorem here: brainly.com/question/343682

#SPJ1

What is value of x in the equation 6x+7-2x=3+5x-9

Answers

Answer: x = 13

Step-by-step explanation: First, we simplify the equation to get 4x + 7 = 5x - 6. Then, from there, we subtract 7 on both sides to get 4x = 5x - 13. Then we subtract 5x from both sides, which would give us -x = -13. Finally, we can divide both sides by -1 (because remember, x = 1) to get that x = 13. Hope this helps!

B Christian installed an electric pump to pump water from a borehole into a 30 000 litre cement dam. If the water is pumped at a rate of 75 litres per minute. How long does it take to fill the dam?
A.4 h
B.6 h 40 min
C.6 h 20 min
D.3h 40 min ​

Answers

Given the amount of water needed to fill the cement dam and the water pump rate, the time needed to fill the dam is 400 minutes or 6hours 40minutes.

Option B)6h 40min is the correct answer.

How long does it take to fill the dam?

Given that;

Amount of water needed to fill the dam A = 30000 litresPump rate r = 75 litres per minuteTime needed to fill the dam T = ?

To determine how long it take to fill the dam, we say;

Time need = Amount of water needed ÷ Pump rate

T = A ÷ r

T = 30000 litres ÷ 75 litres/minute

T = 400 minutes

Note that; 60min = 1hrs

Hence,

T = 6hours 40minutes

Given the amount of water needed to fill the cement dam and the water pump rate, the time needed to fill the dam is 400 minutes or 6hours 40minutes.

Option B)6h 40min is the correct answer.

Learn more word problems here: brainly.com/question/2610134

#SPJ1

What characteristics do all points in Quadrant I share?
A. The x-coordinate is positive and the y-coordinate is positive.
B. The x-coordinate is negative and the y-coordinate is negative.
C. The x-coordinate is positive and y-coordinate is negative.
D. The x-coordinate is negative and y-coordinate is positive.

Answers

Answer:

Option A

Step-by-step explanation:

Remember the things.

In Q1

x>0,y>0

in Q2

x<0,y>0

in Q3

x<0,y<0

in Q4

x>0,y<0

Answer:

A. The x-coordinate is positive and the y-coordinate is positive.

Step-by-step explanation:

The Cartesian plane is divided into four regions by the x-axis and y-axis.

These regions are called "quadrants".

Quadrant I is the top right region, where x and y coordinates of points are positive.

From here, move in a counterclockwise direction.  

Therefore, Quadrant II is the top left region, where the x-coordinate is negative and the y-coordinate is positive.

Quadrant I → (x, y)

Quadrant II → (-x, y)

Quadrant III → (-x, -y)

Quadrant IV → (x, -y)

Answer the follwing grade 5 questions of HFC and LCM

Answers

Answer:

give clear image is next question

Step-by-step explanation:

i will give you the answer

COSINE LAW: Solve triangle PQR. round angles to the nearest tenth​

Answers

Answer:

Hi,

Step-by-step explanation:

PR²=PQ²+QR²-2*PQ*QR*cos(51°)

=15²+12²-2*15*12*cos(51°)

=142,444659....

PR=11.9350...

PQ²=QR²+PR²-2*QR*PR*cos(R)

cos(R)=(12²+142.444...-15²)/(2*12*11.9350...)=0,21451112....

angle R=77,61315...°≈77.6°

angle P=180°-51°-77.6°≈51,4°

The great pyramid of giza has a square base. the length of each side of the base is approximately 230 meters. the height of the pyramid is approximately 147 meters. using these dimensions, what is the volume, in cubic meters, of the pyramid?

Answers

Answer:

  2,592,100 m³

Step-by-step explanation:

The volume of the pyramid can be found by using the given dimensions in the formula for the volume of a square pyramid.

__

formula

  V = 1/3s²h

where s is the side length of the square base, and h is the height.

application

Using the given dimensions, s = 230 m, h = 147 m, we find the volume to be ...

  V = 1/3(230 m)²(147 m) = 2,592,100 m³

The volume of the pyramid is 2,592,100 cubic meters.

How is 0.136¯¯¯¯ written as a fraction in simplest form?



Enter your answer in the box.

Answers

Answer:

[tex]\frac{3}{22}[/tex]

Step-by-step explanation:

the bar above 36 means that the digits 36 are being repeated

we require 2 equations with the repeating digits placed after the decimal point.

let x = 0.13636.. ( multiply both sides by 10 and 1000 )

10x = 1.3636... (1)

1000x = 136.3636... (2)

subtract (1) from (2) thus eliminating the repeating digits

990x = 135 ( divide both sides by 990 )

x = [tex]\frac{135}{990}[/tex] = [tex]\frac{3}{22}[/tex] ← in simplest form

4 people completed their work in one hour how will it take 3 people to finish it give your answer in minutes

Answers

it would be 45 minutes

Find the solution to each system please show your work!

Answers

Answer:

infinite number of solutions

Step-by-step explanation:

x + y = 1 → (1)

3y = - 3x + 3 ( add 3x to both sides )

3x + 3y = 3 ( divide through by 3 )

x + y = 1 → (2)

since the 2 equations are the same, this indicates the system has an infinite number of solutions

Help will mark brainliest!

Answers

a) The compound interest equation is [tex]C = 4250 \cdot 0.9675^{t}[/tex].

b) There is an approximate loss of $ 987.16.

c) The stock will take approximately 12.979 to decrease by half.

How to find stock losses by compound interest model

Compound interest model represents the gain of a deposit as a function of the number of periods and initial amount. The model is represented below:

[tex]C = C_{o}\cdot (1+r)^{t}[/tex]     (1)

Where:

[tex]C_{o}[/tex] - Initial capital, in monetary units.[tex]r[/tex] - Interest rate.[tex]t[/tex] - Period number.[tex]C[/tex] - Current capital, in monetary units.

Capital decreases in time when interest rate is a negative number. The equation that models the situation is [tex]C = 4250 \cdot 0.9675^{t}[/tex] and the current capital after eight years is:

C = 4250 · 0.9675⁸

C = 3262.84

That represents an approximate loss of $ 987.16.

And the number of periods required to decrease the capital by half is:

[tex]2125 = 4250 \cdot 0.9675^{t}[/tex]

[tex]0.5 = 0.9675^{t}[/tex]

㏒ 0.5 = t · log 0.9675

t ≈ 20.979

The stock will take approximately 12.979 to decrease by half.

To learn more on compound interest: https://brainly.com/question/14295570

#SPJ1

Find the 5th term of the sequence which has a first term of 1 and has a common ratio of 2.3. Round your answer to the nearest hundredth if necessary.

Answers

The 5th term of the sequence is 27.98

How to determine the 5th term?

The given parameters are:

First term, a = 1Common ratio, r = 2.3

The nth term of a geometric sequence is calculated using:

[tex]T_n = ar^{n-1[/tex]

So, we have:

[tex]T_5 = 1 * 2.3^{5-1[/tex]

Evaluate the difference

[tex]T_5 = 1 * 2.3^4[/tex]

Evaluate the product

[tex]T_5 = 27.98[/tex]

Hence, the 5th term of the sequence is 27.98

Read more about sequence at:

https://brainly.com/question/6561461

#SPJ1

A bag has 4 red marbles,5 blue, 3 green and 1 yellow. what is the probability of pulling a red marble.
Answer as a fraction, decimal and percent

Answers

Answer:

4/13 is the answer

total = 4+3+5+1= 13

let a be the event of getting red marbles= total is 4

probability=4/13

given,

number of red marbles = 4

number of blue marbles = 5

number of green marbles = 3

number of yellow marbles = 1

total number of marbles = 4 + 5 + 3+1 = 13

Probability of pulling a red marble is ,

P (red marble ) = number of red marbles/total number of marbles

P(red) = 4/13

Hence ,

As a fraction the probability is 4/13

As a decimal , the probability is 4/13 = 0.307

And as a percent , probability = 4/3 x 100 = 30.7

Solve the system by elimination. 8x+3y=4 2x+y=2​

Answers

Answer:

 x = -1

y = 4

Step-by-step explanation:

Solving system of linear equations by elimination method.

    8x +  3y = 4 ---------------(I)

    2x  + y = 2 --------------(II)

Multiply the second equation by (-3) and then add them.Thus y will be eliminated and we will obtain the value of 'x'.

       (I)                8x  +  3y = 4

     (II)*(-3)         -6x - 3y = -6   {Now add}

                           2x         = -2

                                     x = -2/2

                           [tex]\sf \boxed{\bf x = -1}[/tex]

Plugin x = (-1) in any one of the equations. Here I have chosen equation (II)

2*(-1) + y = 2

    -2 + y  = 2

           y = 2 + 2

            [tex]\sf \boxed{\bf y = 4}[/tex]

Eliminate the parameter:
x = (3t+ 2)² y = t - 2

Answers

Solve for t in terms of y :

[tex]y = t - 2 \implies t = y + 2[/tex]

Substitute this into the parametric equation for x :

[tex]x = (3t + 2)^2 \implies x = (3(y + 2) + 2)^2 \implies \boxed{x = (3y+8)^2}[/tex]

Ok help me I don’t understand stand this

Answers

Answer:

Step-by-step explanation:

Comment

It is not possible to figure out what choices are are given for the first blank. I will say that the probable choice has the word product in it.

The second blank is the actual number of choices. It is 3 page count times color or 3*4 = 12 different choices.

Answer

product

12

5. If the longer side of the rectangle is 25.5 in., what are its width, perimeter, and area?

Answers

Step-by-step explanation:

1) The width of the rectangle is 10.2 in.

2) The perimeter of the rectangle is 71.4 in.

3) The area of the rectangle is 260.1 sq.in

11. 6.2 m B 1.8m Calculate the value of x. NOT TO SCALE​

Answers

Answer:

24.19

Step-by-step explanation:

[tex] \tan(x) = \frac{6.2}{13.8} \\ x = { \tan}^{1} \frac{6.2}{13.8} \\ x = 24.19320899[/tex]

or the value of x can be 24.20

Which expression is equivalent to startfraction startroot 10 endroot over rootindex 4 startroot 8 endroot?

Answers

The expression that is equivalent to √10 / (4√8) is given as √5 / 8

What is an equation?

An equation is an expression that shows the relationship between two or more variables and numbers.

Given the equation:

√10 / (4√8)

Simplifying:

= √10 / (4√(4 * 2))

= √10 / (8√2)

= √5 / 8

The expression that is equivalent to √10 / (4√8) is given as √5 / 8

Find out more on equation at: https://brainly.com/question/2972832

#SPJ1

Acellus
Type SSS, SAS, ASA, SAA, or HL to
justify why the two larger triangles are
congruent?

Answers

The answer is sas
Solution:
The right angle sides of two triangles are equal to each other and the included angle on both sides is 90 degrees so the two large triangles are congruent
Other Questions
what is ron finley ted talk about The Romantic fascination with exotic or fantasy lands is clear in __________.Keatss La Belle Dame sans Merci and Coleridges Kubla KhanShelleys Ode to the West Wind and Byrons When We Two PartedByrons Darkness and Wordsworths Lines Written in Early SpringWordsworths I Wandered Lonely as a Cloud and Keatss Ode on Melancholy What is scientific learning? Solve for x: -24 = 6x1/4-44- 1/4 In a random population, out of 500 people, 160 had blue eyes. In a group of 2500 people, how many would have blue eyes? Daisy is making an abstract painting with two triangles. The dimensions of the painting are shown below:Two triangles share the same height of 10 inches. One triangle has a base of 8 inches, and the other is 12 inches.The total area of the two triangles is _____ square inches. Kevin bought 6lbs of jelly beans. Antonio bought 66oz of jelly beans.How many more did Kevin buy than Antonio? A benefit of the Direct Stafford Loan is that:A. it doesn't accrue interest. B. you don't need to demonstrate financial need to get one. C. you don't have to pay the money back. D. it doesn't accrue interest while you are in school. 5. Find the equation of the line in slope-intercept form.a. (1,-6) and (-7, 2) Just need some help with this question. A northbound train left at noon. Two hours later, a southbound train left the same station. At five o'clock the two trains were 210 miles apart. Find the rate of each train of the northbound train traveled 10 miles per hour faster than the southbound train. How many syllables in hogs? A pile of 60 sheets of paper is 6mm high. Calculate the average thickness of a sheet of the paper What is the net force needed to lift a full grocery sack (weighing 210 N) uniformly? What is the net forceneeded to accelerate the grocery sack upward at 1.5 m/s2 ? Evaluate:[tex]\bf{\sum^{32}_{n=1}\:(2n+8)[/tex]Please help A.S.A.P., thank you guys!Please show work as well.[tex]\bigstar[/tex] The following scatter plot represents the height of a basketball in seconds during a free throw shot. Andrew is showing his work in simplifying -4.5 + 4.2 + 5.6 - 7.3. Identifyany errors in his work or in his reasoning. Write feedback to Andrewexplaining the mistake he made and how to correct his work. Which phrases does the author use to quicken the pace and build suspense? through the mirror; usual hurry; glanced at the clock appeared; grocery shop took a look; three customers What is the difference in tone between a memo written to an entire company and an e-mail on the same subject written to your business partner only? A. The tone is really the same because the subject matter is the same. B. The audiences both include members of the same company, so the tone is not that different. C. The e-mail will have a slightly less formal tone, as it is written to a person you know well, while the memo is addressed to a wide and varied audience, which requires a more distanced tone. D. None of the above Help please!preform operations with numbers expressed in scientific notation, including problems where both decimal and scientific notation are used. Use size for measurements of very large or very small quantities (e.g use kilometers per year for sea floor apeading.) intercept scientific notation that has been generated by technology A gas is contained in a chamber such as that in Figure 15.4. Suppose that the region outside the chamber is evacuated and the total mass of the block and the movable piston is 135 kg. When 2050 J of heat fl ows into the gas, the internal energy of the gas increases by 1730 J. What is the distance s through which the piston rises?