A pizza delivery shop averages 30 minutes per delivery with a standard deviation of 4 minutes. What is the probability that a pizza takes less than 27 minutes to be delivered

Answer:

We are given that there are total 170 toy robots

Number of defective robots out of total 170 toy robots [tex]=20[/tex]

We have to find the percentage of toy robots that are disaffected.

The percentage of toy robots that are disaffected is given below:

[tex]\frac{20}{170} \times 100[/tex]

[tex]0.1176 \times 100[/tex]

[tex]11.76[/tex]

Therefore, the percent of toy robots that are disaffected is [tex]\bold{11.76\%}[/tex]

In the equation 2.5x + 2y = 225, the term 2.5x represents the cost of dried fruit, with 2.5 being the cost per pound.

In the provided equation 2.5x + 2y = 225, where x stands for the pounds of dried fruit and y represents the pounds of nuts, the term 2.5x signifies the cost associated with the dried fruit in making the trail mix.

The coefficient 2.5 represents the cost per pound of dried fruit, which is $2.50. Therefore, multiplying the pounds of dried fruit (x) by the cost per pound (2.5) gives the total cost of the dried fruit in the trail mix. In essence, 2.5x calculates the financial contribution of the dried fruit to the overall cost of producing the trail mix.

For example, if there are 10 pounds of dried fruit (x = 10), then 2.5 times 10 equals 25, representing the cost, in dollars, of the dried fruit in the trail mix. This interpretation extends to any quantity of dried fruit used in the trail mix.

In summary, the term 2.5x in the equation 2.5x + 2y = 225 specifically denotes the cost associated with the pounds of dried fruit (x) used in producing the trail mix.

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11(.25)= 2.75

Cryus should order 3 pizzas.

Answer: D

Step-by-step explanation:

An on-line electronics store must sell at least $5000 worth of computers and printers per day.

Each printer costs $350 and each computer costs $750.

This equation is: 350p + 750c ≥ 5000

The store can ship a maximum of 20 items per day

This equation is: c + p ≤ 20

Answer:

option A  and E

Step-by-step explanation:

Arithmetic sequence converge,  only  in the case only when r=0

otherwise , arithmetic sequence goes increasing or decreasing at a constant rate.

So we ignore second and fourth option

If |r|<1 then geometric sequence converge

if |r|>1 then geometric sequence diverge

In option A, r= 1/5  that is less than 1  so it converge

In option C, r= -2 , |r| > 1 so geometric sequence diverge

In option E, r= 2/3 that is less than 1  so it  converges

Answer is option A  and E

Answer:

B) cos 55

Step-by-step explanation:

Consider a right angle triangle with 35 angle, the other angle = 180 - 90 - 35 = 55

sin 35 = opposite side of 35 angle / hypothesis

Opposite side of 35 angle is the same as the adjacent side of 55 angle

sin 35 = adjacent side of 65 angle / hypothesis = cos 55

The answer is B.

y-y1 = m(x-x1) ..... point slope form

y-2 = -4(x-1) ... plug in the given info; solve for y

y-2 = -4x+4

y = -4x+4+2

y = -4x+6

Answer is choice C

Answer:

C.   y = -4x + 6

Step-by-step explanation:

First write it in point-slope form ( because that is what you are given):-

y - y1 = m(x - x1):-

y - 2 = -4(x - 1)

y - 2 = -4x + 4

y = -4x + 6 (answer)

The equation of the line parallel to the graph of 14x - 7y = 1 that passes through the point at (-2, 4) is y = 2x + 8. The correct option is C.

To find the equation of the line parallel to the graph of 14x - 7y = 1 that passes through the point at (-2, 4), we first need to determine the slope of the given line. We can write the given equation in slope-intercept form, y = mx + b, where m is the slope and b is the y-intercept.

Starting with 14x - 7y = 1, we solve for y:

The slope of the original line is 2, so a line parallel to it will also have a slope of 2. Using the point-slope form of a line equation, y - [tex]y_1[/tex] = m(x - [tex]x_1[/tex]), and the point (-2, 4), we get:

Therefore, the equation of the line parallel to 14x - 7y = 1 and passing through (-2, 4) is y = 2x + 8.

Complete Question:

Find the equation of the line parallel to the graph of 14x-7y=1 that passes through the point at (-2,4).

Select the correct response:

[tex]\begin{aligned}A) \:& y=2 x+3 \\B)\: & y=\frac{1}{2} x+3 \\C) \:& y=2 x+8 \\D) \:& y=-\frac{1}{2} x-3\end{aligned}[/tex]

Answer:

missing data for the following exponential function is 27

Step-by-step explanation:

To find out missing data , we use the given f(x) equation

Given f(x) = 3^x

WE need to find the missing number f(x) when x=3

To find f(x) we plug in 3 for x  in f(x) = 3^x

[tex]f(x) = 3^3= 3*3*3= 27[/tex]

So missing number is 27

Answer:

B. 27

Step-by-step explanation:

Answer: 15

from what i believe

Step-by-step explanation: i did the math that i thought it was and i did 240 divided by 16 and i got 15 hope this helps.

The formula of a volume of a rectangle prism:

[tex]V=lwh[/tex]

l - length

w - width

h - height

We have

[tex]l=n^2+2;\ w = 10,\ h=n+5[/tex]

Substitute:

[tex]V=(n^2+2)(10)(n+5)=(10n^2+20)(n+5)\\\\=(10n^2)(n)+(10n^2)(5)+(20)(n)+(20)(5)\\\\=10n^3+50n^2+20n+100[/tex]

The volume of the aquarium in terms of n is calculated by multiplying its length (n2 +2 inches), width (10 inches), and height (n + 5 inches) giving the formula V = (n2 + 2)  imes (n + 5)  imes 10, which expands to V = 10n3 + 60n2 + 20n + 100 cubic inches.

We use the formula V = length  times width  times height, where the volume V is the space inside the aquarium. The question provides the dimensions of the aquarium in terms of n: the length (n2 +2 inches), height (n + 5 inches), and width (10 inches).

To calculate the volume, simply multiply the dimensions together:

Volume, V = (n2 + 2)  imes (n + 5)  imes 10

Expanding the expression gives us the volume V in cubic inches as a function of n:

V = 10n3 + 60n2 + 20n + 100 cubic inches

Answer:

1 foot = 0.305 meters.

Convert 1 meter to feet:

1 meter = 1/0.305 = 3.28 feet

Find the weight in pounds per meter:

5 pounds x 3.28 feet = 16.4 pounds per meter.

Convert pounds per meter to kilograms per meter:

16.4 pounds x 0.454 kilograms per pound = 7.44 kg/m

Answer:

B

Step-by-step explanation:

The expected value of profit margin is the sum of the product of profit margin and probability.

Wrench A:

... 10×.05 +20×.6 +30×.2 +40×.15 = 0.5 +12 +6 +6 = 24.5

Wrench B:

... (20+40)×.3 +(30+50)×.2 = 18 +16 = 34

Wrench C:

... 15×.4 +30×.5 +(45+60)×.05 = 6 +15 +5.25 = 26.25

Wrench D:

... 5×.2 +10×.4 +15×.15 +20×.25 = 1 +4 +2.25 +5 = 12.25

___

Clearly, Wrench B has the greatest expected profit margin. That would be the one Jose should order if he's trying to maximize his profit.

Answer:

19

Step-by-step explanation:

The ratio of green beans (g) to pumpkin (p) is ...

... g : p = 1 : 5

Then the ratio of green beans to the total is ...

... g : (g+p) = 1 : (1+5) = 1 : 6

Since you have

... g/total = (1/6)

... g = total · 1/6

you can substitute 114 for the total to find ...

... g = 114 · 1/6 = 19

Answer:

It should be A, $12.75

Step-by-step explanation: Add 10.5+10.5+10.5+4.5+4.5+6.75= $47.25, subtract 60-47.25= $12.75

If you mean the y coordinate of that line, then it would be negative because it goes through -4 on the y axis.

Answer:

I'm not sure if it is correct but i hope it helps you

Step-by-step explanation:

So you subtract 25 and 15 and you will get 10

then you add 65 and 5 and you will get 70

you add 45 and 20 and you will get 65

162

... (total paving stones) / bricks = 5 / 2

Multiplying by bricks gives ...

... (total paving stones) = (5/2)·bricks = 5/2·120 = 300

Then the number of gray paving stones is ...

... (gray stones) = (total paving stones) - (tan stones) . . . . tan + gray = total

... = (total paving stones) - 46% · (total paving stones) . . . . tan is 46% of total

... = (100% - 46%)·(total paving stones) = 54% · (total paving stones)

... = 54/100 · 300 . . . . put in the total number of paving stones

... (gray stones) = 162

Answer: 162

Step-by-step explanation:

The formula:

[tex]\theta=\dfrac{\theta\pi}{180}[/tex]

We have

[tex]\theta=453[/tex]

Substitute:

[tex]453^o=\dfrac{453\pi}{180}=\dfrac{453\pi:3}{180:3}=\dfrac{151\pi}{60}\to\boxed{B)}[/tex]

The conversion of 453° into radians is 151π/60.

The angle made by taking the radius and wrapping it round the circle.

Given that, 453°

To convert any degree into radians, we multiply by π/180

453*π/180 = 151π/60

Hence, The conversion of 453° into radians is 151π/60.

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Answer: $1.25 decrease

Step-by-step explanation:

I am not positive but I think this is how you calculate it:

 (.25)($10) + (.75)(-$5)

= $2.50      +    -$3.75

= -$1.25

Answer:

Step-by-step explanation:

a) When will the height be 307 feet?

h = − 16t^2 + 171t + 17

307 = − 16t^2 + 171t + 17

Solving the quadratic equation by the general formula (find the plot attached). It reaches 307' twice as it is a parabolic shot.

t=2.1141s

t=8,5734s

b) When will the object reach the ground?

h = − 16t^2 + 171t + 17

0 = − 16t^2 + 171t + 17

t=-0.0985s (not real as there exists no negative time)

t=10.786s

The object will be at a height of 307 feet approximately 9.54 seconds after it was thrown. The object will reach the ground approximately 0.21 seconds after it was thrown.

To find when the height will be 307 feet, you can set the equation for the height h to 307 and solve for t:

h = -16t² + 171t + 17

307 = -16t² + 171t + 17

Now, let's rearrange the equation and set it equal to zero:

-16t² + 171t + 17 - 307 = 0

Combine like terms:

-16t² + 171t - 290 = 0

Now, you can solve this quadratic equation for t. You can use the quadratic formula:

t = (-b ± √(b² - 4ac)) / (2a)

In this case, a = -16, b = 171, and c = -290. Plug these values into the quadratic formula:

t = (-171 ± √(171² - 4 * (-16) * (-290))) / (2 * (-16))

Now, calculate the values for t:

t₁ = (-171 + √(171² - 4 * (-16) * (-290))) / (2 * (-16))

t₂ = (-171 - √(171² - 4 * (-16) * (-290))) / (2 * (-16))

Calculate t₁ and t₂ separately:

t₁ ≈ 9.54 seconds

t₂ ≈ -9.69 seconds

Since time cannot be negative in this context, we discard the negative solution. Therefore, the object will be at a height of 307 feet approximately 9.54 seconds after it was thrown.

To find when the object will reach the ground, you can set h equal to 0 and solve for t:

h = -16t² + 171t + 17

0 = -16t² + 171t + 17

Rearrange the equation:

-16t² + 171t + 17 = 0

Now, solve for t using the quadratic formula as we did before:

t = (-171 ± √(171² - 4 * (-16) * 17)) / (2 * (-16))

Calculate t₁ and t₂:

t₁ ≈ 0.21 seconds

t₂ ≈ 10.30 seconds

Again, you discard the negative solution. So, the object will reach the ground approximately 0.21 seconds after it was thrown.

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Answer:

(-10, 0) , (-4, 0)

Step-by-step explanation:

[tex]\text{We know that the parabola is given by the quadratic equation.}\\\text{let the general equation of the parabola is}\\\\y=a(x-h)^2+k, \text{ where (h, k) is the vertex of the parabola.}\\\\\text{here we have given that vertex, }(h,k)=(-7,45), \text{ so above equation gives}\\\\y=a(x-(-7))^2+(45)\\\\y=a(x+7)^2+45\\\\\text{now this parabola has y-intercept at }(0,-200), \text{ so with this point}\\\text{above equation gives}[/tex]

[tex]-200=a(0+7)^2+45\\\\\Rightarrow -200=49a+45\\\\\Rightarrow 49a=-245\\\\\Rightarrow a=-\frac{245}{49}=-5\\\\\text{so the equation of the parabola is}\\\\y=-5(x+7)^2+45[/tex]

[tex]\\\text{Now to find the x-intercepts, we set }y=0, \text{ so we get}\\\\-5(x+7)^2+45=0\\\\\Rightarrow -5(x+7)^2=-45\\\\\Rightarrow (x+7)^2=\frac{-45}{-5}\\\\\Rightarrow (x+7)^2=9\\\\\Rightarrow (x+7)=\pm \sqrt{9}\\\\\Rightarrow x+7=\pm 3\\\\\Rightarrow x=-7\pm 3\\\\\Rightarrow x=-7-3, \text{ and } x=-7+3\\\\\Rightarrow x=-10, \text{ and } x=-4\\\\\text{so x-intercepts of parabola occur at: }(-10,0), \text{ and }(-4,0)[/tex]

Answer:

Max for g(x) is 3

Max for f(x) is 2

Step-by-step explanation:

The maximum value of a function is the highest value on the graph of the function. It is the greatest value of the function and is always a y value. We can see on the graph that the blue function peaks at 3. The max is 3.

A normal sine or cosine without any transformations has the max of 1. We can see in the equation for f(x) that there is a vertical stretch of 2. So the max here is 2(1)=2.

Final answer:

Billie has $2.02 left after buying fabric, craft glue, and craft paper, which in total cost her $14.93 from her initial $16.95.

Explanation:

To find out how much money Billie has left after purchasing her items, we need to calculate the total cost of the items and subtract it from the amount she had initially.

Fabric cost: $8.69

Craft glue cost: $1.95

Craft paper cost: $4.29

We add these amounts together to find the total cost of the items:

$8.69 (fabric) + $1.95 (glue) + $4.29 (paper) = $14.93.

Now, we subtract the total cost of items from the amount she had to start with:

$16.95 - $14.93 = $2.02.

Therefore, Billie has $2.02 left after her purchases.

Answer:

The answer is C

Step-by-step explanation:

I just answered it on edg

The second step is

2.5 (42 ÷ 3.2 – 2 + 3) - 5.2

An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.

Example: 2 + 3x + 4y = 7 is an expression.

We have,

Step 1:

2.5 (42 ÷ 3.2 – 10(0.2) + 3) - 5.2

Step 2:

2.5 (42 ÷ 3.2 – 2 + 3) - 5.2

Step 3:

2.5 (13.125 + 1) - 5.2

Step 4:

2.5 (14.125) - 5.2

Step 5:

35.3125 - 5.2

Step 6:

30.1125

Thus,

The value of the expression is 30.1125.

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Answer:

The hyperbolas which open horizontally are:

(x+2)^2/3^2-(2y-10)^2/8^2=1

(x-1)^2/6^2-(2y+6)^2/5^2=1

Step-by-step explanation:

A hyperbola with equation of the form:

(x-h)^2/a^2-(y-k)^2/b^2)=1 opens horizontally

Then, the hyperbolas which open horizontally are:

(x+2)^2/3^2-(2y-10)^2/8^2=1

(x-1)^2/6^2-(2y+6)^2/5^2=1

Answer:

[tex]\frac{(x-2)^2}{3^2}-\frac{(2y-10)^2}{8^2}=1[/tex]

and

[tex]\frac{(x-1)^2}{6^2}-\frac{(2y+6)^2}{5^2}=1[/tex]

Step-by-step explanation:

There are 2 types of hyperbolas:

Horizontal:

[tex]\frac{(x-h)^2}{a^2}-\frac{(y-k)^2}{b^2}=1[/tex]

Vertical:

[tex]\frac{(y-k)^2}{a^2}-\frac{(x-h)^2}{b^2}=1[/tex]

If the x term is positive then parabola is horizontal.

If the y term is positive then parabola is vertical.

so, only first two equations are in which x term is positive.

hence, equations are

[tex]\frac{(x-2)^2}{3^2}-\frac{(2y-10)^2}{8^2}=1[/tex]

and

[tex]\frac{(x-1)^2}{6^2}-\frac{(2y+6)^2}{5^2}=1[/tex]

3. Answer: y = 4

Step-by-step explanation:

Need to find the slope (m):

  [tex]\dfrac{y_2-y_1}{x_2-x_1}[/tex]

  [tex]\dfrac{4 - 4}{-3-1}[/tex]

= [tex]\dfrac{0}{-4}[/tex]

= 0

Now input ONE of the points (1, 4) and the slope (m = 0) into the Point-Slope formula:

y - y₁ = m(x - x₁)

y - 4 = 0(x - 1)

y - 4 = 0

y      = 4

********************************************************************

4. Answer: [tex]\bold{y = \dfrac{2}{3}x + 3}[/tex]

Step-by-step explanation:

 [tex]y - y_1 = m(x - x_1)[/tex]

 [tex]y - 1 = \dfrac{2}{3}(x - (-3))[/tex]

 [tex]y - 1 = \dfrac{2}{3}(x + 3)[/tex]

 [tex]y - 1 = \dfrac{2}{3}x + 2[/tex]

 [tex]y = \dfrac{2}{3}x + 3[/tex]

Answer:

11 feet wood will tenly use to make the frame.

Step-by-step explanation:

As given

Tey is making a square frame for her painting.

She is using 4 pieces of wood that are each 2.75 feet long.

Tenly uses wood to make the frame = Number of pieces of wood × Length of each pieces

Here

Number of pieces of wood = 4

Length of each pieces = 2.75 feet

Put in the above

Tenly uses wood to make the frame = 4 × 2.75

                                                             = 11 feet

Therefore 11 feet wood will tenly use to make the frame.