Tim bought a soft drink for 2 dollars and 5 candy bars. He spent a total of 22 dollars. How much did the candy bar costs?

Answer: Yes, it is definitely a function. Although one might say that it is not a one to one or injective function because of the presence of (-1,-2) and (6,-2).. The correct option among the two options that are given in the question is the second option. I hope that this is the answer that has actually come to your desired help

Step-by-step explanation: I took the test on FLVS

Using the empirical rule for normal distributions, approximately 68% of the data falls within one standard deviation of the mean. Therefore, in a group of 20 bags of pet food with a normal distribution, about 14 bags are expected to be within one standard deviation from the mean.

The question involves the concept of a normal distribution in statistics, and specifically, how it applies to the weights of bags of pet food. Given that the bags have a mean weight of 50 lb and a standard deviation of 0.2 lb, we can use the empirical rule (68-95-99.7 rule) for normal distributions. This rule states that approximately 68% of the data in a normal distribution falls within one standard deviation of the mean.

In this scenario, we have a group of 20 bags of pet food. To find out how many bags we would expect to fall within one standard deviation from the mean, we would calculate 68% of 20:

Expected number of bags within one standard deviation = 0.68 × 20 = 13.6

Rounding to the nearest whole number, we can expect about 14 bags to fall within one standard deviation from the mean.

Answer:

C. x+5/x+10

Step-by-step explanation:

Just had this question on A.P.E.X and C was correct!:) good luck on yall's studies you got this!

Answer:

0,00000000861

hope this helps all u k12 cheaters. :)

Answer:

(A) 5.5 units

Step-by-step explanation:

Given: Diameter AC intersects chord BD at point E such that AE = 2.5 units and DE = 3.4 units. Point O is the center of the circle, and the radius of the circle is 5 units. we have to find the approximate length of BE.

Now, CE=CO+OE=5+(OA-AE)=5+2.5=7.5 units.

Now, by Intersecting Chord Theorem which states that when two chords intersect each other inside a circle then the products of their segments are equal.

Thus, [tex]CE{\times}AE=BE{\times}DE[/tex]

Substituting the given values, we get

[tex]7.5{\times}2.5=3.4{\times}DE[/tex]

[tex]\frac{7.5{\times}2.5}{3.4}=DE[/tex]

[tex]5.541=DE[/tex]

[tex]DE[/tex]≈[tex]5.5{\text{units}[/tex]

therefore, the measure of DE is 5.5 units.

Hence, option A is correct.

The required number for the given arithmetic problem is 29 and 12.

Given that,
The sum of the two numbers is 46 . the larger number is 12 more than the smaller number. what the numbers are to be determined.

In mathematics, it deals with numbers of operations according to the statements. There are four major arithmetic operators, addition, subtraction, multiplication and division,

Here,
Let the number be x and y
According to the question,
x = y + 12   - - - - - (1)
x + y = 46  - - - - - - (2)
Substitute x in equation 2
y + 12 + y = 46
2y = 46 - 12
2y = 34
y = 17
mow put this y in equation 1
x = 17 + 12
x = 29

Thus, the required number for the given arithmetic problem is 29 and 17.

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Answer:  The correct option is (B) [tex]y=\dfrac{1}{2}x+1.[/tex]

Step-by-step explanation:  We are given a line of best fit for a scatter plot in the figure.

We are to find the equation of the line of best fit in slope-intercept form.

We know that the slope-intercept form of a line is given by

[tex]y=mx+c,[/tex]

where m is the slope and c is the y-intercept of the line.

From the figure, we note that

the line passes through the points (0, 1) and (2, 2). So, the slope of the line will be

[tex]m=\dfrac{2-1}{2-0}\\\\\\\Rightarrow m=\dfrac{1}{2}.[/tex]

At x = 0, y = 1, so the y-intercept of the line, c = 1.

Therefore, the equation of the line will be

[tex]y=mx+c\\\\\Rightarrow y=\dfrac{1}{2}x+1.[/tex]

Thus,  the equation of the line of best fit in slope-intercept form is

[tex]y=\dfrac{1}{2}x+1.[/tex]

Option (B) is CORRECT.

To calculate the probability of getting exactly 7 tails in 16 tosses of a fair coin, use the binomial probability formula with p = 0.5, q = 0.5, n = 16, and k = 7. Calculate C(16, 7) and then multiply it by (0.5^7) × (0.5^9) to find the probability.

Calculating Probability of Exactly 7 Tails in 16 Coin Tosses

To find out the probability of getting exactly 7 tails when a fair coin is tossed 16 times, you can use the binomial probability formula. The formula for the binomial probability of getting exactly k successes (in our case, tails) in n trials (coin tosses) is given by:

P(X = k) = C(n, k) × (p^k) × (q^(n-k))

Where:

Here, the probability of getting a tail p is 0.5, the probability of not getting a tail q is also 0.5, n is 16, and k is 7. Substituting these values into the formula, we can calculate the probability of getting exactly 7 tails in 16 tosses of a fair coin.

The combination C(16, 7) can be calculated using the binomial coefficient formula or by using a calculator with binomial functions. Once we have the value of C(16, 7), we multiply it by (0.5^7) × (0.5^9) to get the probability. The final answer represents the probability of getting exactly 7 tails when a fair coin is tossed 16 times.

need the arctan of the 2 lengths given

9/12 reduces to 3/4

arctan on the calculator is tan^-1

 arctan(3/4) = 36.86989 degrees

 round off the answer as needed

A parabola is an open curve that is formed when a cone is sliced parallel to the side of it. The key aspects of a parabola when it is graphed looks like a curve that opens upward, downward, leftward or rightward. It has a latus rectum which is the length of the ends of a curved line. The directrix is the distance between the vertex of a parabola and the line. The vertex is the point where the curve ends. 

One of the key aspects of any parabola is that It looks like a curve that opens upward, downward, leftward or rightwards.

This refers to the open curve that is so shaped when there is a sliced parallel to a cone on either side of it.

From the complete question, there is an image shown and some key concepts that can be gotten from it are:

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The 25th term of the arithmetic sequence is -31.6.

Looking at the sequence:

- First term [tex]\( a_1 = 2 \)[/tex]

- Second term [tex]\( a_2 = 1 \left( \frac{3}{5} \right) = \frac{3}{5} \)[/tex]

- Third term [tex]\( a_3 = 1 \left( \frac{1}{5} \right) = \frac{1}{5} \)[/tex]

Calculate the common difference d:

[tex]\[ d = a_2 - a_1 = \frac{3}{5} - 2 = \frac{3}{5} - \frac{10}{5} = -\frac{7}{5} \][/tex]

Now that we have [tex]\( d = -\frac{7}{5} \)[/tex], we can find the general term [tex]\( a_n \)[/tex] of the arithmetic sequence:

[tex]\[ a_n = a_1 + (n-1)d \][/tex]

Substitute  [tex]\( a_1 = 2 \)[/tex] and [tex]\( d = -\frac{7}{5} \)[/tex]:

[tex]\[ a_n = 2 + (n-1) \left( -\frac{7}{5} \right) \]\[ a_n = 2 - \frac{7(n-1)}{5} \]\[ a_n = 2 - \frac{7n - 7}{5} \]\[ a_n = \frac{10 - 7n + 7}{5} \]\[ a_n = \frac{17 - 7n}{5} \][/tex]

Now, find [tex]\( a_{25} \)[/tex]:

[tex]\[ a_{25} = \frac{17 - 7 \cdot 25}{5} \]\[ a_{25} = \frac{17 - 175}{5} \]\[ a_{25} = \frac{-158}{5} \]\[ a_{25} = -31.6 \][/tex]

The value of the original number obtained using a system of linear equations is 68

Let the two digit number = ab

We can create the system of equations as follows :

b - a = 2 - - - - - - - - - - - - (1)

(10b + a) + (10a + b) = 154

10b + a + 10a + b = 154

11b + 11a = 154 - - - - - - - - - (2)

From (1) :

b = 2 + a ----- (3)

Substitute b = 2 + a into (2)

11(2 + a) + 11a = 154

22 + 11a + 11a = 154

22 + 22a = 154

22a = 154 - 22

22a = 132

a = 132 / 22

a = 6

From (3) :

b = 2 + 6

b = 8

Therefore, the original number, ab = 68

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The rate of Glenn in finishing a job would be equivalent to:

Rate (G) = 1 job / 20 minutes

While the rate of Veronika is:

Rate (V) = 1 job / x                 ---> x is the unknown

Where 1 job for Glenn means completely cleaning his room while 1 job for Veronika means pulling out everything. Therefore the equation to use would be:

1 / 20 – 1 / x = 1 / 60

The rate of Veronika is subtracted from the rate of Glenn since Veronika is slowing Glenn down. Solving for x:

Multiply both sides by 60 x

(1 / 20 – 1 / x = 1 / 60) * 60 x

3 x – 60 = x

2 x = 60

x = 30

Therefore it takes 30 minutes for Veronika to pull everything out.

I will give you the simple version, if it takes 30 min for the brother to clean and the sister takes 20 minites to mess it up before he cleaned, then the sister messed the room up for 30 min because 30x2= 60.

To find the total number of students, set up a proportion and solve for x. The total number of students is 1640.

To find the total number of students, we can set up a proportion using the information given. If three-fourths of the student body attended the pep-rally, that means three-fourths of the total number of students is equal to 1230. Let's let x represent the total number of students. Then, we can write the proportion as:

3/4 = 1230/x

Now, to solve for x, we can cross multiply:

3x = 4 x 1230

Dividing both sides by 3:

x = 4 x 1230 / 3

Calculating the expression on the right side of the equation:

x = 4920 / 3

Finally, divide 4920 by 3 to get:

x = 1640

So, there are 1640 students in total.

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52 cards total

26 are red

 so you would have a 26/52 reduced to 1/2 probability of picking a red one.

 There are 4 aces so you would have a 4/52 reduced to 1/13 probability of picking an ace.

 There are 2 red aces so you would have a 2/52 reduced to 1/26 probability of picking a red Ace

Solution:

Drawn an equilateral triangle of side 2 inches.

One side is parallel to Bottom of page.

Then from the center of the right side draw two parallel lines an inch apart and an inch long.

Then drawn a line from the end of one of the parallel lines to the end of the other parallel line.

The Arrow is pointing in East of South or South of East and North of West or West of North Direction.

Answer:

It's actually this

Step-by-step explanation

(told it to convert to rectangular form)

The complex number 5/2(cos 150° + i sin 150°), in the form a + bi, can be written as -(5√3)/4 +i(5/4).

Complex numbers are used to define imaginary numbers, that is, the square roots of negative numbers. √-1 is represented as i.

In the question, we are given a complex number 5/2(cos 150° + i sin 150°), and are asked to represent it in the form a + bi.

We know that complex numbers can be written in two forms, a + bi or r(cos θ + i sin θ).

The relation between these are:

r² = a² + b²,

a = r cos θ, b = r sin θ,

tan θ = b/a.

So, comparing 5/2(cos 150° + i sin 150°), to r(cos θ + i sin θ), we can say that r = 5/2, and θ = 150°.

Therefore, a = r cos θ = (5/2) cos 150° = (5/2) (-cos 30°) = -(5√3)/4

b = r sin θ = (5/2) sin 150° = (5/2) sin 30° = 5/4.

Therefore, the complex number 5/2(cos 150° + i sin 150°), in the form a + bi, can be written as -(5√3)/4 +i(5/4).

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Answer:

The correct answer is option B. Non-Independence Day in the United States is not July 4. True

Step-by-step explanation:

The inverse of the conditional statement is found by negating both the hypothesis and conclusion of that conditional statement.

Here the given statement is :

Independence Day in the United States is July 4.

Its inverse will be :

B. Non-Independence Day in the United States is not July 4. True

And yes this is true.