Practice
1. Which kind of function best models the data in the table? Write
an equation to model the data.
A quadratic; y = -x2
ху
0
2
B
1
quadraticy
2
1
1.5
1
с
N
linear, y
HI
2
3
0.5
4
0
D
1
linear, y
=
2x+2

Answers

Answer 1

Answer: Linear; y=-x - 1

Step-by-step explanation: The slope is negative since it’s decreasing. So it’s not the first equation. It’s not a quadratic equation because there is no forming U shape for this data. It’s not a exponential function because the slope is not 3 and a exponential function is in the form y=a(b)^x.


Related Questions

Which number line shows the solution set for |m|=4
Please answer correct my grade depends on it

Answers

Answer:

The last one

Step-by-step explanation:

The equations 4 x minus 5 y = 5, 3 x + 10 y = 20, 4 x minus 5 y = negative 5, and 3 x + 10 y = negative 20 are shown on the graph below. On a coordinate plane, there are 4 lines. Green line goes through (0, 1) and (2.5, 3). Orange line goes through (0, negative 1) and (2.5, 1). Blue line goes through (0, 2) and (3.5, 1). Pink line goes through (0, negative 2) and (3.5, negative 3). Which system of equations has a solution of approximately (–2.7, –1.2)? 4 x minus 5 y = negative 5 and 3 x + 10 y = negative 20 4 x minus 5 y = 5 and 3 x + 10 y = 20 4 x minus 5 y = 5 and 3 x + 10 y = negative 20 4 x minus 5 y = negative 5 and 3 x + 10 y = 20

Answers

Answer:

4 x minus 5 y = negative 5 and 3 x + 10 y = negative 20

Step-by-step explanation:

The equations

4 x - 5 y = 5 (red)

3 x + 10 y = 20 (blue)

4 x - 5 y = -5 (green)

3 x + 10 y = -20 (purple)

are shown in the picture attached. As we can see there, the point (–2.7, –1.2) is on the intersection of the purple and green lines. Therefore is the solution of the system:

4 x - 5 y = -5

3 x + 10 y = -20

Answer:

A

Step-by-step explanation:

HELP ASAP PLZZZ, dhrbfjjdhehf

Answers

Answer:

45

Step-by-step explanation:

<1 and <2 are supplementary so <1+<2= 180 degrees

135+<2=180

<2= 45

Measurement would be 45


Find the volume of the following figure.



9pi m3

5pi m3

48pi m3

12pi m3

Answers

Answer:

12

Step-by-step explanation:

V=πr2h=π·22·3≈37.69911

How many tickets were sold between 12pm and 3pm?

Answers

Answer:

approximately 670 maybe

Answer:

about 250

Step-by-step explanation:

The mixed number -4 1/5 can be written as the improper fraction -21/5. True False

Answers

Answer:

True

Step-by-step explanation:

Answer:

Hai

Yes, its true.

because in 21, there are 4 times of 5 and we have left 1 number..

you can multiply -4 with 5 and add the number of the denominator (1)

i wanna give one more example because couldnt explained well.

3 2/3 can be written as 11/3.

you can try it too!

good luck(:

Find the measure of QPR.. I need full explanation please

Answers

Answer:

b) 42°

Step-by-step explanation:

When two triangles share the same base (in this case,  side QR), one angle is half of the other one. In this case:

1/2*∠QPR = ∠QSR

From the picture,

∠QSR = 21°

Replacing into the equation and solving for ∠QPR:

∠QPR = 2*21° = 42°

6t^{2} – 13 when t = 2

Answers

Answer:

11

Step-by-step explanation:

6t^2 - 13

Let t=2

6 * 2^2 -13

powers first

6 *4 -13

Multiply

24 -13

subtract

11

Answer:

[tex] = 11[/tex]

Step-by-step explanation:

[tex]6 {t}^{2} - 13[/tex]

[tex]t = 2[/tex]

[tex]6 {t}^{2} - 13 \\ 6 \times 2 \times 2 - 13 \\ 24 - 13 \\ = 11[/tex]

hope this helps

brainliest appreciated

good luck! have a nice day!

Can someone help me I was doing good and then I got stuck on this question what I can’t figure out is how you get the voltage when you only have the watt and resistance .

A 60.0 Watt lightbulb has an operating resistance of 220 Ω.

Calculate the operating voltage of this lightbulb.

Answers

Answer:

114.89 V

Step-by-step explanation:

Watts are a measure of power, and there is an equation that relates power, voltage, and resistance. It goes like this:

P=(V^2)/R

Now to find the voltage you want to solve for V

PR = V^2

V = [tex]\sqrt{PR}[/tex]

Now substitute your numbers into the equation and you get your answer

V = [tex]\sqrt{(60)(220)}[/tex]

V = [tex]\sqrt{13200}[/tex]

V = 114.89 V

Answer this ASAP.!!!

Answers

Answer: 7095.4

Because the digits following 7095 are .38, you would need to round the 3 to a 4 to get the nearest tenth

The length of the red line segment is 8, and the length of the blue line segment is 4. How long is the major axis of the ellipse

Answers

Answer: the answer is

C. 12

Answer:

12

Step-by-step explanation:

12 is the answer I got.

What is the true solution to 2In e sqrt in 5x = 2 In 15?

Answers

Answer:

B.

Step-by-step explanation:

I have attached the work to your problem.

Please see the attachment below.

I hope this helps!

if y varies directly as x and y=32 when x=4 find the value of y when x=5

Answers

Answer:

y=40

Step-by-step explanation:

32 divided by 4 equals 8. And 5 times 8 equals 40.

what are the solutions of the equation 9x^4-2x^2-7=0? Use u substitution to solve.​

Answers

Answer:

The answer is A

%) 1.3.27
Question Help
The length of a new rectangular playing field is 6 yards longer than double the width. If the perimeter of the rectangular playing field
is 312 yards, what are its dimensions?
The width is yards

Answers

Answer:

Width of field  = 50 yards

Length of Yards =  106 yards

Step-by-step explanation:

Let the width of field be x yards

given that "The length of a new rectangular playing field is 6 yards longer than double the width"

Length of Yards= 2*width of field + 6 = 2x+6 yards

perimeter of the rectangular playing field  = 312 yards

We know that perimeter of rectangle is given by 2(length + width ).

Since field is rectangular then

2(length + width ) = 312

2(x+2x+6) = 312

=> 3x+6 = 312/2 = 156

=> 3x = 156 - 6 = 150

=> x = 150/3 = 50

Thus,

Width of field is x = 50 yards

Length of Yards=  2x+6 yards = 2*50+6  yards = 106 yards

What is


Please answer

Answers

Answer:

[tex]\mathrm{Decimal:\quad }\:38.8[/tex]

Step-by-step explanation:

[tex]\frac{\left(3-11\right)^2+\left(5-11\right)^2+\left(13-11\right)^2+\left(14-11\right)^2+\left(20-11\right)^2}{5}\\\left(3-11\right)^2+\left(5-11\right)^2+\left(13-11\right)^2+\left(14-11\right)^2+\left(20-11\right)^2=194\\\left(3-11\right)^2+\left(5-11\right)^2+\left(13-11\right)^2+\left(14-11\right)^2+\left(20-11\right)^2\\\left(3-11\right)^2=64\\\left(3-11\right)^2\\\mathrm{Subtract\:the\:numbers:}\:3-11=-8\\=\left(-8\right)^2[/tex]

[tex]\mathrm{Apply\:exponent\:rule}:\quad\left(a\right)^n=a^n,\:\mathrm{if\:}n\mathrm{\:is\:even}\\\left(-8\right)^2=8^2\\8^2=64\\\left(5-11\right)^2=36\\\left(5-11\right)^2\\\mathrm{Subtract\:the\:numbers:}\:5-11=-6\\=\left(-6\right)^2\\\mathrm{Apply\:exponent\:rule}:\quad \left(-a\right)^n=a^n,\:\mathrm{if\:}n\mathrm{\:is\:even}\\\left(-6\right)^2=6^2\\=6^2\\6^2=36\\\left(13-11\right)^2=4\\\left(13-11\right)^2\\\mathrm{Subtract\:the\:numbers:}\:13-11=2\\=2^2\\2^2=4\\\left(14-11\right)^2=9[/tex]

[tex]\mathrm{Subtract\:the\:numbers:}\:14-11=3\\=3^2\\3^2=9\\\left(20-11\right)^2=81\\\left(20-11\right)^2\\\mathrm{Subtract\:the\:numbers:}\:20-11=9\\=9^2\\9^2=8\\=64+36+4+9+81\\\mathrm{Add\:the\:numbers:}\:64+36+4+9+81=194\\=194\\=\frac{194}{5}\\\mathrm{Decimal:\quad }\:38.8[/tex]

The object below is made of solid plastic. It is a cylinder with an indentation at the top
in the shape of a cone.

What is the volume to the nearest tenth of a cubic inch, of the plastic object?​

Answers

Answer: 97.6 in3

Step-by-step explanation:

Hi, to answer this question we have to calculate the volume of the cylinder and subtract the volume of the cone:

Volume of a cylinder: π (diameter /2) ^2 (height)

Vcy = π (4 /2) ^2 (8) = π (2) ^2 (8) =100.5 in3

Volume of a cone = 1/3 π (diameter /2) ^2 (height)

V Co = 1/3 π (4/2) ^2 (0.7) = 1/3 π (2) ^2 (0.7) = 2.9 in3

Finally:

Volume of the cylinder - volume of the cone = 100.5-2.9 = 97.6 in3

Feel free to ask for more if needed or if you did not understand something.

What is the answer (11/12 ) (-2.1/16) (2 1/16) (-11/12)

Answers

Answer:

-11/12

Step-by-step explanation:

I can not show the steps because there are a lot and when I used my calculator, I got -11/12. :)

Answer:

[tex](-\frac{11}{12})[/tex]

Step-by-step explanation:

[tex]\frac{\frac{5}{8} +\frac{3}{4} }{-\frac{2}{3}-\frac{5}6} } =[/tex]

[tex]\frac{\frac{5}{8} +\frac{6}{8} }{-\frac{4}{6} -\frac{5}{6} }=[/tex][tex]\frac{\frac{11}{8}}{-\frac{9}{6} }=[/tex]

(11÷8)÷(-[tex]\frac{9}{6}[/tex])=

1.375÷(-1.5)=

-0.9166...≈ [tex](-\frac{11}{12} )[/tex]

Solve for x. 9x - 18 = 7x + 30

Answers

Answer: x = 24

Step-by-step explanation:

9x - 18 = 7x + 30

9x - 7x = 30 + 18

2x = 48

x = 48/2 = 24

$4,600 invested in a CD paying the investor 5% annual return for one year?

what’s the answer

Answers

Answer:

230

Step-by-step explanation:

multiply 6,400 by 5% then multiply that by the 1 year and 230 will be the answer

Hope this helps :)

PLEASE ANSWER ASAP! PLEASE! NO EXPLANATION NEEDED IF YOU DON'T WANT! PLEASE ANSWER AS MANY AS YOU CAN! YOU DON'T NEED TO DO EVERYTHING!

Answers

Answer:

12: 144

Step-by-step explanation:

As it fits all requirments.

What is the solution to the system of equations? {2x+5y=3y=x+2 (1, 3) (−1, 3) (17, 157) (−1, 1)

Answers

Answer:

Step-by-step explanation:

2x + 5y = 3

y = x + 2

2x + 5(x + 2) = 3

2x + 5x + 10 = 3

7x + 10 = 3

7x = -7

x = -1

y = -1 + 2

y = 1

(-1, 1)

(-625) x (-5) +95 x 625
(-62500)
62500
56250
59375
which one is the answer ​

Answers

-625 × -5 + 95 × 625

= 62,500

HELP ME PLEASE ASAP
IT IS A CLOCK PROBLEM
What is the angle between the hands at 4:41?

Answers

Answer:127.5∘

Step-by-step explanation:

The angle measure between any two consecutive numbers on a clock is 36012=30∘.

Call the "12" point on the clock the zero-degree point.

At 4:45, the minute hand is at the "9" - that is, at the 30×9=270∘ mark. The hour hand is three-fourths of the way from the "4" to the "5; that is,

30×434=142.5∘ mark.

Therefore, the angle between the hands is

270−142.5=127.5∘, the desired measure.

2 Points
What is the name of the point that you use to define a parabola?
A. Vertex
B. Center
C. Focus
D. Directrix
sig

Answers

Answer:

C

Step-by-step explanation:

A parabola is set of all points in a plane which are an equal distance away from a given point and given line. The point is called the focus of the parabola and the line is called the directrix.

Focus  is the name of the point that you use to define a parabola

What is Parabola?

A parabola is a plane curve which is mirror-symmetrical and is approximately U-shaped

A parabola is a symmetrical U-shaped curve that can be defined as the set of all points that are equidistant to a fixed point (called the focus) and a fixed line (called the directrix).

The vertex is the point where the parabola changes direction and is located halfway between the focus and the directrix.

The center is a term used to refer to the midpoint of the line segment connecting the two foci of an ellipse or hyperbola, and is not relevant to a parabola.

Hence,  Focus  is the name of the point that you use to define a parabola

To learn more on Parabola click:

https://brainly.com/question/31142122

#SPJ5

Simplify the expression by combining like terms.
15 + 12x – 5x + 4y - 7

(A) 11xy + 8
(B) 7x + 4y + 8
(C) 7x + 4y - 7
(D) 15 + 11xy - 7

Answers

My guess would probably be A

If ∠ABC and ∠CBD are supplementary angles, then m∠ABC + m∠CBD = 180° represents the definition of Question 9 options: A) supplementary angles. B) triangle sum. C) congruence. D) complementary angles.

Answers

Answer:

A

Step-by-step explanation:

If “p: 2 + 2 =4
What is p?
02x2=4
02x2 + 4
2+2 = 4
02+2 4

Answers

Answer:

26

Step-by-step explanation:

If a + b = c and b = 5, then a + 5 = c is known as the ________ property. Question 18 options: A) substitution B) symmetric C) transitive D) reflexive

Answers

Answer:

Substitution

Step-by-step explanation:

We know that B equals five, and that a + b = c. This means that if we substitute 5 for b, the equation will still be true. Hope this helps!

Answer:

Substitution

Step-by-step explanation:

you substituted b for 5 in the equation

Hope this helped and brainliest plss

Compare the repeating decimals shown with their equivalent fractions. Describe the pattern. 0.111...(repeating)= 1/9, −0.555...(repeating)= −5/9, −1.222...(repeating)= −1 2/9, 5.888...(repeating)= 5 8/9
PLEASE SONEONE HELP ME!!!!!!!!!

Answers

Answer:

The pattern in decimal expressions is that the decimal numbers are repeated immediately after the decimal point.

The pattern in the equivalent fraction is that 9 is on all fractions

Step-by-step explanation:

All the cases (0.111..., −0.555...,  −1.222... and 5.888...) are solving by the following procedure (only one example is shown):

x = 0.111111...

10x = 1.11111...

10x - x = 1.11111... - 0.111111...

9x = 1

x = 1/9

which is equivalent to express the decimal part as the tenth divided by 9. Then:

−0.555...= −5/9,

−1.222...(repeating)= −1 2/9,

5.888...(repeating)= 5 8/9

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