Which statement about the data in the table shown is true?
x –2 –1 0 1
y –3 –1 1 3
A. The data do not represent a function.
B. The data represent a nonlinear function.
C. The data represent a quadratic function.
D. The data represent a linear function

Answer:

count how many flowers there are on number 1

Answer:

okay so 3. equals 20

4. 1st one 2nd one 3rd one  equals 30

5. first one 2nd one 3rd one equals 30

6. first one second one equals 20

7. first one second one equals 20

Step-by-step explanation:

Either graph A or C, i'm leaning more towards A

A

Step-by-step explanation:

because slope is 3/4 and y-intecept is (0,-3)

Answer: right of the picture

Step-by-step explanation:

Answer: 280

Step-by-step explanation: all you have to do is multiply one of the numbers by another one and than multiply that number by the final number

Answer:

[tex]Mean = 47[/tex]

[tex]n = 6[/tex]

[tex]s= 16.56[/tex]

[tex]\sqrt n = 2.45[/tex]

[tex]SEM = 11.55[/tex]

Step-by-step explanation:

Given: The above data

Solving (a): Mean of each group

Mean is calculated as:

[tex]Mean = \frac{\sum x}{N}[/tex]

[tex]Mean = \frac{55 + 31 + 58 + 20 + 47 + 37+68 + 32 + 85 + 69 +58 + 52+26 + 47 + 30 +35 + 53 + 43}{18}[/tex]

[tex]Mean = \frac{846}{18}[/tex]

[tex]Mean = 47[/tex]

Solving (b): The sample size of each group

This is the number of rows in each group.

Hence:

[tex]n = 6[/tex]

Solving (c): Standard deviation (s)

This is calculated as:

[tex]s = \sqrt{\frac{\sum (x - \bar x)^2}{N}}[/tex]

So, we have:

[tex]s= \sqrt{\frac{(55 - 47)^2 + (31 - 47)^2 +......... + (43 - 47)^2}{18}}[/tex]

[tex]s= \sqrt{\frac{4936}{18}}[/tex]

[tex]s= \sqrt{274.22}[/tex]

[tex]s= 16.56[/tex]

Solving (d): Square root of n

[tex]\sqrt n = \sqrt 6[/tex]

[tex]\sqrt n = 2.45[/tex]

Solving (e): SEM

This is calculated as:

[tex]SEM = \frac{s}{\sqrt N}[/tex]

[tex]SEM = \frac{47}{\sqrt{16.56}}[/tex]

[tex]SEM = \frac{47}{4.07}[/tex]

[tex]SEM = 11.55[/tex]

Answer:

(a) A = 0.00278787878787878x

(b) B = 0.00235294117647058x + 3

(c) The answers are as follows:

For buying by credit card

For 700 BWP: Cost = A = £1.95

For 800 BWP: Cost = A = £2.23

For 800 BWP: Cost = A = £2.79

For buying from a Bureau de Change

The equation (4) is used as follows:

For 700 BWP: Cost = B = £4.65

For 800 BWP: Cost = B = $4.88

For 1000 BWP: Cost = B = £5.35

(d) You would have to buy 6,897.54 pulas for the cost to be the same whether you use a credit card or cash.

Step-by-step explanation:

(a) by credit card

For the exchange rate, we have:

8.25 BWP = £1 ⇒ 8.25 / 8.25 BWP = £1 / 8.25 = 1.00 BWP = £0.121212121212121

The expression can therefore be written as follows:

A = £0.121212121212121 * r * x ................. (1)

Where;

A = cost (including commission) of buying a particular number of Botswana pulas by credit card

r = commission on a credit card transaction = 2.3%, or 0.023

x = the number of pulas bought

Substituting for r into equation (1), we have:

A = £0.121212121212121 * 0.023 * x

A = 0.00278787878787878x ................. (2)

Equation (2) is the expression.

(b) from a Bureau de Change

For the exchange rate, we have

8.5 BWP = £1 ⇒ 8.5 / 8.5 BWP = £1 / 8.5 = 1.00 BWP = 0.117647058823529

B = (£0.117647058823529 * r * x) + F ................. (3)

Where;

B = cost (including commission) of buying a particular number of Botswana pulas by from a Bureau de Change.

r = commission charged by Bureau de Change. = 2%, or 0.02

x = the number of pulas bought

F = fee = £3

Substituting for r and F into equation (3), we have:

B = (£0.117647058823529 * 0.02 * x) + £3

B = 0.00235294117647058x + 3 ................. (4)

Equation (4) is the expression.

c. Evaluate each of these expressions for 700 BWP, 800 BWP, and 1000 BWP respectively.

For buying by credit card

The equation (2) is used as follows:

For 700 BWP: A = £0.00278787878787878 * 700 = £1.95

For 800 BWP: A = £0.00278787878787878 * 800 = £2.23

For 800 BWP: A = £0.00278787878787878 * 1000 = £2.79

For buying from a Bureau de Change

The equation (4) is used as follows:

For 700 BWP: B = (£0.00235294117647058 * 700) + £3 = £1.65 + £3 = £4.65

For 800 BWP: B = (£0.00235294117647058 * 800) + £3 = £1.88 + £3 = $4.88

For 1000 BWP: B = (£0.00235294117647058 * 1000) + £3 = £2.35 + £3 = £5.35

d. Hazard a guess as to the number of pulas you would have to buy for the cost to be the same whether you use a credit card or cash.

This can be calculated by equating equations (2) and (4) and then solve for x as follows:

0.00278787878787878x = 0.00235294117647058x + 3

0.00278787878787878x - 0.00235294117647058x = 3

x(0.00278787878787878 - 0.00235294117647058) = 3

x0.0004349376114082 = 3

x = 3 / 0.0004349376114082

x = 6,897.54 pulas

Therefore, you would have to buy 6,897.54 pulas for the cost to be the same whether you use a credit card or cash.

Answer:

12.04

Step-by-step explanation:

Formula:

a² + b² = c²

8² + 9² = c²

64 + 81 = c²

145 = c²

c = 12.04

Answer:

there isn't a math question

Step-by-step explanation:

Answer: D

Step-by-step explanation:

the sum of any two sides of a triangle must be greater than the third side.

5 + 7 = 12

12 > 9

Answer:

n = 4.5

Step-by-step explanation:

10 - 5.5 = n

Answer:

I feel like its 4.5

Step-by-step explanation:

Answer: the answer is C. M= 3 and B= -7

the slope is always with the (x) and the b is by itself

Answer:

[tex]\huge\boxed{\text{B) 4}}[/tex]

Step-by-step explanation:

We can use the properties of some of these circles to solve and find the value of x.

FIrst off - we know that to find the side of a right triangle we can use the Pythagorean Theorem, which states that [tex]a^2 + b^2 = c^2[/tex] (a and b being legs, c being the hypotenuse.)

We also know that this triangle is in a circle. Part of the hypotenuse and the altitude of the triangle are in the circle.

Point W is the center of the circle. Therefore, any points stretching to the edge from it will be equal (since this is a circle).

With this knowledge - UW and WZ are equal.

Therefore, since UW is [tex]x-1[/tex], WZ will be too.

We also know the length of VZ. We can add this to WZ to find the length of the whole hypotenuse.

[tex]\displaystyle x-1+2 \\ x+1[/tex]

So the length of the hypotenuse, WV, is [tex]x+1[/tex].

Now that we know the length of the hypotenuse, we can use the Pythagorean Theorem like we stated before to find the value of x.

We know the two legs are [tex]x-1[/tex] and [tex]2x-4[/tex], while the hypotenuse is

1 can not be a possible answer because UW would end up being [tex](1-1) = 0[/tex] units long! This isn't possible!

Therefore, the correct answer would be B) 4.

Hope this helped!

Answer: The midline should be a horizontal one, at y=4

Step-by-step explanation: See above answer.

 Midline of the periodic function given in the picture will be y = 4.

From the graph attached in the question,

Maximum value of the periodic function → y = 5

Minimum value of the function → y = 3

Midline of the function → [tex]y=\frac{3+5}{2}[/tex] ⇒ y = 4

        Therefore, midline of the periodic function given in the picture will be y = 4.

Learn more about the midline of the periodic function here,

https://brainly.com/question/11749227?referrer=searchResults

Answer:

the new price of the radio is $39.81

Step-by-step explanation:

multiply the cost by the mark up to find how much the price was raised by

29.49•0.35= 10.32

then add the mark up to the original price

10.32+29.49= $39.81

and I rounded to the hundreds place because it's money

hope this helps babe <3

Answer:

I think it is $21.84

Step-by-step explanation:

Answer:

geometry

The ratio of the angle measures of a pentagon is 4:5:3:8:7. What is the measure of the smallest

The sum of the interior angles of a pentagon is 180(5-2) = 540º

so

4x + 5x + 3x + 8x + 7x = 540

solve for x and sub into 3x

Answer:

I think B by I'm not sure

Step-by-step explanation:

I'm not good with this subject

Step-by-step explanation:

7x^2-28=0

x^2-4=0

x^2=4

x=-2

x=2

Answer:

3.167 ft²

12.5 inches

Step-by-step explanation:

1.)

Measure of each wall : 16 6/2 '

Number of walls = 2

Total area to be painted :

16 6/2' * 2 = (16 + 3) * 2 = 19 * 2 = 38 inches

1 feet = 12 inches

x = 38 inches

12x = 38

x = 38 / 12 = 3.167 ft²

2.)

Area of rectangular canvas = 225

Height = 18

Base, b =?

Area of rectangle = height * base

225 = 18 * b

225 / 18 = 18b / 18

12.5 = b

Base = 12.5 inches

Answer:

14

Step-by-step explanation:

100% - 30%= 70% (the times they've won)

0.7x20=14

Answer:

1/16 + 1/16

..............................

Answer:

3/4 x 1/6

Step-by-step explanation:

both would end up as 1/8

hope this helps :)

Answer:

6 ft = 2 yd

6 ft = 6 x 1 ft

= 6 x 2 yd

= 12 yd

Answer: The area is 8 it litterally tells you there

Step-by-step explanation:

Answer:

each missing angle is 120°

Step-by-step explanation:

What you have is a kite so the two missing angles are equal.

The sum of all four angles = 360°

2y = 360° - 88° - 32° = 240°

y = 120°

Answer:

The line has a slope of 2.

Step-by-step explanation:

We can see that this line intersects (-3, -4) and (-1, 0), so it's slope, Δy/Δx, will be:

(-4 - 0) / (-3 - (-1))

= -4 / -2

= 2

Answer:

14

Step-by-step explanation

Answer:

x<3

Step-by-step explanation:

-9.5x-1.5>-30

move the constant to the right

-9.5x>-28.5

divide both sides to get x<3

Answer:

3.3

Step-by-step explanation:

Answer:

(a)

i) [tex]V=12.6m/s[/tex]

ii) [tex]V=12.06m/s[/tex]

iii) [tex]V=12.006m/s[/tex]

(b)

[tex]V = 10m/s[/tex]

Step-by-step explanation:

Given

[tex]s = 6t^2 + 4[/tex]

Solving (a): Average velocity between t = 1 and t = 1 + h

When t = 1

[tex]t_1 = 1[/tex]

[tex]s_1 = 6t^2 + 4 = 6 * 1^2 + 4 = 6 + 4 =10[/tex]

i) h = 0.1

When t = 1 + h

[tex]t_2 = 1 + 0.1 = 1.1[/tex]

[tex]s_2= 6t^2 + 4 = 6 * (1.1)^2 + 4 = 11.26[/tex]

Average velocity is then calculated as:

[tex]V = \frac{s_2 - s_1}{t_2 - t_1}[/tex]

[tex]V = \frac{11.26 - 10}{1.1- 1} = \frac{1.26}{0.1} = 12.6[/tex]

[tex]V=12.6m/s[/tex]

ii) h = 0.01

When t = 1 + h

[tex]t_2 = 1 + 0.01 = 1.01[/tex]

[tex]s_2= 6t^2 + 4 = 6 * (1.01)^2 + 4 = 10.1206[/tex]

Average velocity is then calculated as:

[tex]V = \frac{s_2 - s_1}{t_2 - t_1}[/tex]

[tex]V = \frac{10.1206 - 10}{1.01- 1} = \frac{0.1206}{0.01} = 12.06[/tex]

[tex]V=12.06m/s[/tex]

ii) h = 0.001

When t = 1 + h

[tex]t_2 = 1 + 0.001 = 1.001[/tex]

[tex]s_2= 6t^2 + 4 = 6 * (1.001)^2 + 4 = 10.012006[/tex]

Average velocity is then calculated as:

[tex]V = \frac{s_2 - s_1}{t_2 - t_1}[/tex]

[tex]V = \frac{10.012006 - 10}{1.001- 1} = \frac{0.012006 }{0.001} = 12.006[/tex]

[tex]V=12.006m/s[/tex]

Solving (b): Instantaneous velocity at t = 1

When t = 1

[tex]t = 1[/tex]

[tex]s = 6t^2 + 4 = 6 * 1^2 + 4 = 6 + 4 =10[/tex]

Velocity is:

[tex]V = \frac{s}{t}[/tex]

[tex]V = \frac{10}{1}[/tex]

[tex]V = 10m/s[/tex]

Answer:

C

Step-by-step explanation:

i think its c but i cant be to sure im  only in the 7th grade :) i hope its right