PLS HELP ITS TIMED!!!


The number of daily customers at the Good Eats Diner for one week was 70, 68, 110, 65, 90, 125, and 105. What is the standard deviation of the data?


A. 21.9

B. 25

C. 90

D. 90.4

To find an equation of a line, you have to know the value of slope first. We can find the value of slope by using the formula below:

[tex] \large \boxed{m = \frac{y_2 - y_1}{x_2 - x_1} }[/tex]

m-term represents the slope from y = mx+b.

We are given two coordinate points. Substitute the points in the formula.

[tex] \large{m = \frac{7 - 5}{3 - 0} } \\ \large{m = \frac{2}{3} }[/tex]

Therefore the slope is 2/3.

Next we find the y-intercept. In the form of y = mx+b where m = slope and b = y-intercept. We have got slope, except the y-intercept. We can find the y-intercept by substituting one of gjven points in the equation of y = mx+b.

Since we know the slope - we can rewrite the equation like below:

[tex] \large{y = \frac{2}{3} x + b}[/tex]

Then choose one of two points to substitute. I will choose (0,5). Therefore substitute x = 0 and y = 5.

[tex] \large{5 = \frac{2}{3} (0) + b} \\ \large{5 = 0 + b} \\ \large{b = 5}[/tex]

Thus the y-intercept is (0,5). Note that if the question gives you (0,a) point. That is the y-intercept of graph. So b = a if given (0,a).

Rewrite the equation by substituting the b-value.

[tex] \large{y = \frac{2}{3} x + 5}[/tex]

Hence, the equation of a line that contains those points is y = 2x/3 + 5

Answer

Hope this helps! Let me know if you have any doubts.

Answer:

we don't see the graph, so we cannot tell anything.

Answer:

B

Step-by-step explanation:

Answer:

1) He measured an octagon

2) 89°

Step-by-step explanation:

All other conventional shapes are less than 900°. An octagon is 1080°. To find missing angle you [tex]1080-991=89[/tex]

9514 1404 393

Answer:

  1.2 t/m³

Step-by-step explanation:

1 tonne is 1 Mg = 10⁶ g

1 m³ is (100 cm)³ = 10⁶ cm³

The conversion is ...

  (1.2 g/cm³) · (1 t)/(10⁶ g) · (10⁶ cm³)/(1 m³)

  = 1.2(10⁶)/(10⁶) t/m³

  = 1.2 t/m³

__

For this conversion, the numerical value does not change. Megagrams per cubic meter is the same ratio as grams per cubic centimeter.

Answer:

13/50

Step-by-step explanation:

13 does not have any factors w except 1 and 13, so you can't simplify it anymore than 13/50.

Answer:

Solution

Step-by-step explanation:

Hope this helped :)

Answer:

24

Step-by-step explanation:

Each book equals 1 so when you count all you will get 24

Answer:

x - 6

Step-by-step explanation:

I am unfamiliar with such algebra tiles, but logically that set of tiles tells me :

1 x, -1, -1, -1, -1, -1, -1

so,

1×x + 6×(-1) = x - 6

Answer:

1.27 centimeters

Step-by-step explanation:

brainliest??

Answer:

$30

Step-by-step explanation:

$120 per hour/4 hours=$30

Answer:

15.2%

Step-by-step explanation:

P = 5/(5+4+3) × 4/(5+4+3-1) = 5/12 × 4/11 = 5/33 * 100 = 15.2%

Answer:

replace the ys with -3 then solve it

Answer:

40

Step-by-step explanation:

4 + 3(4×3)

4+ 3(12)

4 + 36

= 40

hope this helps please like and mark as brainliest

Oh and please help me with my question

Answer:

--273

Step-by-step explanation:

100th term is equal a1 + 99d so

100th term = 222 + (-5×99) = -273

Answer:

(0.88, 0,65)

Step-by-step explanation:

what do we have to do ? I assume we need to find the crossing point between the 2 lines.

when looking at the graphic, we can already rule out the first, third and fourth option.

none of the coordinates of that point is larger than 1 in any direction or smaller than 0.5.

so, just by looking at things I immediately "bet" on answer option 2 (0.88, 0.65).

but let's check.

y = -2x/5 + 1

y = 3x - 2

for the crossing point both functions must produce the same functional value.

=>

-2x/5 + 1 = 3x - 2

-2x/5 + 5/5 = 15x/5 - 10/5

-2x + 5 = 15x - 10

15 = 17x

x = 15/17 = 0.88...

y = 3×0.88... -2 = 0.65...

hurray, our original observation and "suspicion" is confirmed.

Answer:

9 and 10

Step-by-step explanation:

square root of 86 is 9.2 (ish)

Answer:

first option

Step-by-step explanation:

[tex] {x}^{3} + 1 - (x - 1) \\ {x}^{3} + 1 - x + 1 \\ {x}^{3} - x + 2[/tex]

Given:

Consider the expression is:

[tex]13-\dfrac{x}{5}+6.2y+20.5x-\dfrac{3}{8}y[/tex]

To find:

The like terms that can be combined in this expression.

Solution:

Two terms are called like terms, if they have same variables of same degree.

We have,

[tex]13-\dfrac{x}{5}+6.2y+20.5x-\dfrac{3}{8}y[/tex]

In the given expression, the pairs of likes terms are:

Pair 1: [tex]-\dfrac{x}{5}[/tex] and [tex]20.5x[/tex]

Pair 2: [tex]6.2y[/tex] and [tex]-\dfrac{3}{8}y[/tex]

It means [tex]-\dfrac{x}{5}[/tex] can be combined with [tex]20.5x[/tex] and  [tex]6.2y[/tex] can be combined with [tex]-\dfrac{3}{8}y[/tex].

Therefore, the correct option is C.

Answer:

3 to 5

Step-by-step explanation:

There are 3 slices of pepperoni,  and there are 5 slices of cheese. Since it says pepperoni to cheese, peperoni would go first. Make sure to use order when calculating ratios.

Hope this helps! Have a wonderful rest of your day!

-kiniwih426

Answer:

2

Step-by-step explanation:4divided by 2 =2

Answer:

2

Step-by-step explanation:

[tex]x_{1}=0; y_{1}=-1\\\\x_{2}=2 ; y_{2}=3\\\\Slope=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}\\\\=\frac{3-[-1]}{2-0}\\\\=\frac{3+1}{2}\\\\=\frac{4}{2}\\\=2[/tex]

Answer:

6 people

Step-by-step explanation:

8/40 = x/32

multiply both sides by 32: 8(32)/40 = x

x = 256/40

= 6.4

≈ 6

Answer:

12.5

Step-by-step explanation:

We can use ratios to solve

4        4+6

---- = ----------

5         AC

4        10

---- = ----------

5         AC

Using cross products

4 * AC = 5*10

4AC = 50

Divide by 4

AC = 50/4

AC =12.5

Answer:

x = 55 degree

Step-by-step explanation:

let the another angle be y

y+108=125 (sum of two interior opposite angle is equal to the exterioe angle formed)

y=125-108

y=17

y+x+108=180 degree (sum of interior angle of a triangle)

17 + x + 108 =180

x + 125 =180

x = 180-125

x=55

Answer:

your answer is D. 24 cubic cm

Step-by-step explanation:

your welcome good day :)

Answer:

cubic polynomial

Step-by-step explanation:

3 is highest exponent and 3 is cubic

there are more than 3 terms, so it's polynomial (poly=many)

Answer:

111

hope that helps!

Answer:

1.5

Step-by-step explanation:

Applying,

Z = (x-μ)/σ................. Equation 1

Where Z = Z score for a height of 67 inches, x = height, μ = mean of the height, σ = standard deviation of the height.

From the question,

Given: x = 67 inches, μ = 64 inches, σ = 2 inches.

Substitute these values into equation 1

Z = (67-64)/2

Z = 3/2

Z = 1.5

Answer:

k = 28

Step-by-step explanation:

[tex]t = 6n - 1 \\ 167 = 6k - 1 \\ 6k = 168 \\ k = 28[/tex]

Answer:

find F

Step-by-step explanation:

this graph does not need to be in any order, but heres my suggestions to get it right:

Point B is ALWAYS on the opposite side of C