A culture started with 3,000 bacteria. After 8 hours, it grew to 3,300 bacteria. Predict how many bacteria will be present after 12 hours. Round your answer to the nearest whole number.

With 4.5 rolls of wire, the electrician can wire up to 6 rooms, assuming a constant wire requirement per room and no additional factors like wastage or special installations.

If an electrician requires 3/4 of a roll of electrical wire to wire one room, then to wire multiple rooms, you can multiply this amount by the number of rooms. In this case, we're dealing with 4 and 1/2 rolls of wire, which is equivalent to 4.5 rolls.

To find out how many rooms can be wired, divide the total amount of wire available by the amount needed for one room:

4.5 rolls ÷ 3/4 roll per room = 4.5 ÷ 3/4 = 6.

So, with 4 and 1/2 rolls of wire, the electrician can wire up to 6 rooms in the house. Keep in mind that this calculation assumes a constant amount of wire is needed for each room and that there are no extra factors like wastage or additional requirements for special installations.

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Answer: $9 per ticket

Step-by-step explanation: Unit price means the cost per unit. In this case, the cost per ticket.

Since we know that it costs $36 for 4 movie tickets, to find the cost for 1 movie ticket, we need to divide 4 into $36 or 4 into 36.

4 divides into 36 9 times. 9 x 4 is 36 and 36 - 36 is 0. So 4 divides into 36 9 times which means that each movie ticket costs $9.

So the unit price is $9 per ticket.

Answer:

[tex]768\ cm^{2}[/tex]

Step-by-step explanation:

Here is the correct question: The pyramid shown has a square base that is 24  centimeters on each side. The slant height is 16  centimeters. What is the lateral surface area?

Given: Side of sqaure base = 24 cm

           Slant height= 16 cm

Now, we have to compute to know lateral surface area of Pyramid with square base.

Formula, lateral surface area of pyramid= [tex]4(\frac{1}{2} \times b\times h)[/tex]

we know, side of sqaure base (b) is 24 cm and slant height (h) is 16 cm.

lateral surface area of pyramid= [tex]4\times (\frac{1}{2} \times 24\times 16)[/tex]

⇒lateral surface area of pyramid= [tex]4\times (192)[/tex]

Opening parenthesis.

∴lateral surface area of pyramid= [tex]768\ cm^{2}[/tex]

Answer:

The value of ∅ for the given trigonometrical equation is 60° .

Step-by-step explanation:

Given as :

The Trigonometrical equation

2 cos∅ + 2 = 3

Now, Solving this equation to get the value of ∅

∴ The equation can be written as

2 cos∅ = 3 - 2

or , 2 cos∅ = 1

or , cos∅ = [tex]\dfrac{1}{2}[/tex]

∴ ∅ = [tex]cos^{-1}(\frac{1}{2})[/tex]

I.e ∅ = 60°

So,The value of ∅ for the given trigonometrical equation = ∅ = 60°

Hence, The value of ∅ for the given trigonometrical equation is 60° . Answer

Answer:

96%

Step-by-step explanation:

Answer:

Step-by-step explanation:

Percentage = (24/25) * 100 = 24* 4 = 96%

The true statements are:

A. Tree A's heights are less spread out than tree B's heights and

B. Tree A has lower average height than tree B

Explanation:

Standard deviation in this case represents the spreading out of heights of the trees, Since tree A has lesser standard deviation given equal to 5 , it is less spread out than B given equal to 12, hence option A. is true.

The average of a quantity is given by mean so, the average height can be compared by the given mean values of the trees. Since, A has lesser mean value (= 25) than B(=60), tree A is said to have lower average height than tree B hence option B. is true.

Answer:

A and B

Answer:

-16n-41

Step-by-step explanation:

2(-n-3)-7(5+2n)

First begin by expanding the bracket.  That is, multiplyingthe brackets by 2 and -7 appropriately.

In  doing so we have,

2(-n) x 2(-3) -7(5) x -7 (+2n)

simplifying becomes:

-2n-6-35-14n

collwct like terms becomes -2n-14n-6-35

Final answer becomes Thus: -16n-41

The ounces of chocolate chips used by Mrs Jacob is 70 ounce

Solution:

Given that Jacob is making several batches of cookies and is using 84 total ounces of chips

Let "c" be the ounces of chocolate chips

Let "p" be the ounces of peanut butter chips

To find: ounces of chocolate chips used by Mrs Jacob

Given that There are 5 times as many ounces of chocolate chips as peanut butter chips

Thus we can frame a equation as:

ounces of chocolate chips = 5 x ounces of peanut butter chips

c = 5p -------- eqn 1

Jacob used 84 total ounces of chip. Therefore,

ounces of chocolate chips + ounces of peanut butter chips = 84

c + p = 84 ---- eqn 2

Substitute eqn 1 in eqn 2

5p + p = 84

6p = 84

Substitute p = 14 in eqn 1

c = 5(14) = 70

Thus the ounces of chocolate chips used by Mrs Jacob is 70 ounce

Answer:

-1

Step-by-step explanation:

A function assigns the values. The right-hand limit of this function at x=2 is -1.

A function assigns the value of each element of one set to the other specific element of another set.

The right-hand limit of the function when the value of x=2, can be found by substituting the value of x as 2 in the given function, therefore, the right-hand limit of this function at x=2 is,

g(x) = (x²-3)/(x-3)

g(2) = (4-3)/(2-3)

g(2) = -1

Hence, the right-hand limit of this function at x=2 is -1.

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To calculate the CPI for year 2 in a simple economy involving shirts and pants, we first find the total cost of the basket in both years considering the price increase. Then, using the formula for CPI, we find that the CPI for year 2 is 122.45, indicating an increase in the average price level compared to the base year.

To calculate the Consumer Price Index (CPI) for year 2 in a simple economy with only shirts and pants in the basket of goods, we first need to understand the concept of CPI. The CPI represents the average change over time in the prices paid by urban consumers for a market basket of consumer goods and services. Here, we're given that the price of each item increases by $1 in year 2, with the new prices being $21 for pants and $26 for shirts.

First, calculate the total cost of the basket in year 2:
Cost of 3 shirts in year 2 = 3 shirts * $26 per shirt = $78
Cost of 2 pairs of pants in year 2 = 2 pants * $21 per pants = $42
Total cost of the basket in year 2 = $78 + $42 = $120

To determine the CPI for year 2, we also need to know the base year's total cost, which isn't directly provided here.

However, assuming the base year (year 1) prices were $1 less for each item, the prices would have been $20 for shirts and $19 for pants.

Cost of the basket in year 1:

Cost of 3 shirts = 3 shirts * $20 per shirt = $60

Cost of 2 pairs of pants = 2 pants * $19 per pants = $38

Total cost of the basket in year 1 = $60 + $38 = $98

Finally, to calculate the CPI for year 2, we use the formula:

CPI for year 2 = (Total cost of the basket in year 2 / Total cost of the basket in year 1) * 100
= ($120 / $98) * 100 = 122.45

Therefore, the CPI for year 2 is 122.45, indicating prices have increased on average when comparing year 2 to the base year (year 1). This helps in understanding the inflation rate and cost of living increases for consumers.

Answer:

both are answered below

Step-by-step explanation:

[where x represents no. of carnations that he buys , y represents no. of roses that he buys ]

The number that satisfies the condition that, when added to five and then doubled, is one less than the number itself is -11. We found this number by setting up an equation and solving for the variable.

Let's define x to be the number we're trying to find. According to the question, if the sum of this number and five is doubled, the result is one less than the number.

The equation based on the given information is 2(x + 5) = x - 1. To solve for x, let's distribute the 2 to both terms in the parentheses: 2x + 10 = x - 1.

Next, we need to get all the x terms on one side and the constant terms on the other side. We can do this by subtracting x from both sides, giving us: x + 10 = -1. Then, subtract 10 from both sides to isolate x: x = -11. So, the number we're looking for is -11.

Answer:

8/7

Step-by-step explanation:

m=(y2-y1)/(x2-x1)

m=(1-9)/(2-9)

m=-8/-7

m=8/7

Answer:

m= 8/7

Step-by-step explanation:

the formula to find slope is

m= y2-y1/x2-x1

The equation of line in point slope form is y - 4 = 7x - 56

Solution:

Given that m = 7 and point is (8, 4)

We have to find the equation of line in point slope form

It emphasizes the slope of the line and a point on the line

The point slope form is given as:

[tex]y - y_1 = m(x - x_1)[/tex]

Where "m" is the slope of line

Substitute m = 7 and (x, y) = (8, 4) in above point slope form

[tex]y - 4 = 7(x - 8)[/tex]

[tex]y - 4 = 7x - 56[/tex]

Thus equation of line in point slope form is found

We can write the equation in standard form

The standard form of an equation is Ax + By = C. In this kind of equation, x and y are variables and A, B, and C are integers.

[tex]y - 4 = 7x - 56\\\\7x - y -52 = 0[/tex]

Answer:

7/10

Step-by-step explanation:

you got 7 out of 10 dollars

Answer:

70%

Step-by-step explanation:

Because the fraction would be 7/10 when you make it to precent form it would be 70/100 which is 70%

Answer:

x = 26

Step-by-step explanation:

The parallel lines are Line l and Line m. The other line shown is the transversal.

When 2 parallel lines are cut by a trasversal it creates 4 euqual angles and another 4 equal angles of different measure.

The angle "5x + 7" is equal to the angle "8x - 71" since they are alternate exterior angles.

So, we can equate both expressions and use algebra to solve for "x". The process is shown below:

[tex]5x+7=8x-71\\8x-5x=71+7\\3x=78\\x=\frac{78}{3}\\x=26[/tex]

Hence,

the value of x is 26

Answer:

D. 384

Step-by-step explanation:

Sorry for the very late response. But if anyone wasn't sure if 384 is correct, it is. I can confirm this because I just took the test. I hope I could help! (:

Probability for male = 75/400 = 3/16

Probability for groups = 175/400 = 7/16

Probability for female = 150/400 = 3/8

There is a 3/8 probability of the song being sung by a female vocalist.

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If g(x)=15, x=...

g(x)=15

2x+9=15

x=3

answer: 3

Answer:

the answer is 3

Step-by-step explanation:

Answer:

1/256

Step-by-step explanation:

1/256

4^-4 as a fraction is 1/256. It cannot be further simplified because 1 and 256 have no common factors other than 1, making it the simplest form.

To express 4^-4 as a fraction and simplify it, we can apply the rule that states any non-zero number raised to a negative exponent is equivalent to 1 divided by that number raised to the positive exponent.

So, for 4^-4, we can write it as:

4^-4 = 1 / 4^4

Now, let's calculate 4^4:

4^4 = 4 * 4 * 4 * 4 = 256

So, we have:

4^-4 = 1 / 256

This is the fraction representation of 4^-4. To determine if it can be further simplified, we can check if the numerator and denominator have any common factors other than 1. In this case, 1 and 256 have no common factors other than 1.

Therefore, 1/256 is already in its simplest form. It represents the fraction equivalent of 4^-4, which is a small value. It means that 4 raised to the power of -4 is a very small positive number, specifically 1/256, indicating that the original number 4^-4 is less than 1 and quite close to zero in value.

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Answer:

The unit rate for her riding in miles per hour is given by 2 miles per hour.

Step-by-step explanation:

Amber rides m miles in h hours according to the equation m=2h .......... (1)

Putting h = 1 hour, we get m = 2 miles.

Therefore, Amber rides 2 miles height within a period of time 1 hour.

Therefore, the unit rate for her riding in miles per hour is given by 2 miles per hour. (Answer)

Again, differentiating equation (1) with respect to h we get,

[tex]\frac{dm}{dh} = 2[/tex] miles per hour.

So, here also we get the unit rate of her riding is 2 miles/hr.

The segment to draw is segment UT

Step-by-step explanation:

A line segment is a part of a line that is bounded by two two distinct  end points. In this case, segment UT is bounded by endpoints U and T. In the diagram, point R is not a segment but a point of intersection of segments BT and EU.

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Answer:

B

Step-by-step explanation:

The 2 part of the ratio represents 39 instructors.

Dividing 39 by 2 gives the value of one part of the ratio, that is

39 ÷ 2 = 19.5 ← value of 1 part of the ratio, thus

number of employees = 12 × 19.5 = 234 → B

The inequality which represents the possible values for the number of cupcakes and donuts is : 4.50c + 1.75d = 450

Let :

Expressing the scenario as an inequality :

4.50c + 1.75d = 450

Therefore, the inequality which represents the possible values for the number of cupcakes and donuts is : 4.50c + 1.75d = 450

Answer:

[tex]0.333 - 2.58 \sqrt{\frac{0.333(1-0.333)}{219}}=0.251[/tex]

[tex]0.333 + 2.58 \sqrt{\frac{0.333(1-0.333)}{219}}=0.416[/tex]

The 99% confidence interval would be given (0.251;0.416).

(25.0 ,41.6)

Step-by-step explanation:

1) Data given and notation  

n=219 represent the random sample taken    

X=73 represent the students that reported that they have at least $1000 of credit card debt.

[tex]\hat p=\frac{73}{219}=0.333[/tex] estimated proportion of students that reported that they have at least $1000 of credit card debt.

[tex]\alpha=0.01[/tex] represent the significance level

z would represent the statistic (variable of interest)    

p= population proportion of students that reported that they have at least $1000 of credit card debt.

2) Confidence interval

The confidence interval would be given by this formula

[tex]\hat p \pm z_{\alpha/2} \sqrt{\frac{\hat p(1-\hat p)}{n}}[/tex]

For the 99% confidence interval the value of [tex]\alpha=1-0.99=0.01[/tex] and [tex]\alpha/2=0.005[/tex], with that value we can find the quantile required for the interval in the normal standard distribution.

[tex]z_{\alpha/2}=2.58[/tex]

And replacing into the confidence interval formula we got:

[tex]0.333 - 2.58 \sqrt{\frac{0.333(1-0.333)}{219}}=0.251[/tex]

[tex]0.333 + 2.58 \sqrt{\frac{0.333(1-0.333)}{219}}=0.416[/tex]

And the 99% confidence interval would be given (0.251;0.416).

We are confident that about 25.1% to 41.6% of students have at least $1000 of credit card debt.

And for this case the most accurate option is:

(25.0 ,41.6)

Answer: [tex]2 sin(5 \theta) cos \theta[/tex]

Step-by-step explanation:

According to the trigonometric identities we have the following formula:

[tex]sin (x) + sin (y)=2 sin(\frac{x+y}{2}) cos(\frac{x-y}{2})[/tex]

Now, we have the following:

[tex]sin (6\theta)+ sin (4\theta)[/tex]

Where [tex]x=6\theta[/tex] and [tex]y=4\theta[/tex]

Hence:

[tex]sin (6\theta)+ sin (4\theta)=2 sin(\frac{6\theta+4\theta}{2}) cos(\frac{6\theta-4\theta}{2})[/tex]

[tex]sin (6\theta)+ sin (4\theta)=2 sin(\frac{10\theta}{2}) cos(\frac{2\theta}{2})[/tex]

Finally:

[tex]sin (6\theta)+ sin (4\theta)=2 sin(5\theta) cos(\theta)[/tex]

Answer:

So the correct option is D

{-2 , 0 , 4}

Step-by-step explanation:

Given:

A Graph

To Find:

Zeroes of the function graph = ?

Solution:

Zeroes of Graph:

Wherever the function graphs line cuts the x-axis are called ZEROES of the function graphs.

Here there are three different points were the function graphs  cuts on x-axis. Therefore three zeroes,which are -2 , 0 , 4

i.e x = - 2 , x = 0 (origin),and x = 4

So the correct option is D

{-2 , 0 , 4}

Answer:

D

Step-by-step explanation:

We need to find 2 roots of the quadratic function given and find the greater of the two roots.

We factorize the quadratic and find the two solutions first:

[tex]x^2-6x+5=0\\(x-5)(x-1)=0\\x=1,5[/tex]

So,

x = 1

and

x= 5

Out of the two, x = 5 is the greater root.

D is the correct answer.

Distance between two points is 7

Explanation:

This is a question based on reflection of point w.r.t line. During reflection we can see the mirror image with t-shirt print inverted.But the  distance from mirror remains same.

Assume a point (x,y), and it reflect in x-axis, then x-axis serves as the mirror, and the new point is (x,-y), because the distance from the mirror remains same. If the reflection of the point is (x,y) in y-axis, then y-axis serves as the mirror, and the new point is (-x,y). And if you reflect (x,y) in y=x line, then new point will be (y,x).

So considering the above question, if new point is (5, -3.5), then the original point must be (5, 3.5)

Distance between two points [tex]P(X_1, Y_1)[/tex] and [tex]Q(X_2, Y_2)[/tex]is given by:

d(P, Q) = [tex]\sqrt{ (X_2-X_1)^{2} + (Y_2-Y_1)^{2}}[/tex]

[tex]Y_2-Y_2 = (3.5) - (-3.5) = 3.5+3.5 = 7\\ \\X_2-X_1 = 5 - 5 = 0[/tex]

[tex]So \sqrt {(Y_2-Y_1)^{2} + (X_2-X_1)^{2}} = \sqrt { 7^{2} + 0^{2}} = \sqrt { 14+0} = \sqrt {14} = 7[/tex]

So distance = 7