5.please help this is timed

Answer:

$154

Step-by-step explanation:

Each can is $22.

You take $22x7=$154

Answer:

19.25$

Step-by-step explanation:

So first with these we always try to get the constant or divided it down to 1.

So 22 divided by 8 = 2.75, which means 2.75 is out constant.

So it is every 1 fruit cocktail it costs 2.75$.

So if we do 1 x 7 = 7

And 2.75 x 7

Then that equals 19.25

So for every 7 cans of fruit cocktail, it costs 19.25

Hope I could help.

Answer:

-2/3

Step-by-step explanation:

The formula for slope is [ y2-y1/x2-x1 ]. Use the given points to substitute and solve.

12-8/4-10

4/-6

-2/3

Best of Luck!

Answer:

\(-\frac{2}{3}\)

Step-by-step explanation:

Slope formula is:

\(\frac{y_{2} - y_{1} }{x_{2}-x_{1}}\)

Let's plug-in our numbers.

\(\frac{12 - 8}{4 - 10} = \frac{4}{-6} = -\frac{4}{6}\)

Now, we must simplify the fraction. We can do this by by finding the GCF (Greatest Common Factor). Let's list out what 6 and 4 have in common.

What can 6 be divided into?

2 * 3 = 6

1 * 6 = 6

What can 4 be divided into?

2 * 2 = 4

1 * 4 = 4

The GCF of these two numbers is 2!

\(-\frac{4\div2}{6\div2} = -\frac{2}{3}\)

So, our slope is \(-\frac{2}{3}\)

I have shown how to do this in the picture below. We get the same answer solving this way as well.

~ \(InLoveWithPugs\)

\(Math \ Enthusiast\\Moderator\)

The function f(x) = 0.45x + 12.50 models the situation where a bank charges $.45 for each check written plus a service charge of $12.50. The "x" represents the number of checks written during the month.

The function that models this situation can be written as:

f(x) = 0.45x + 12.50

In this function, "x" represents the number of checks written during the month. The term "0.45x" represents the monthly charge for maintaining the account based on the number of checks written (0.45 for each check). The term "12.50" represents the service charge.

To calculate the total monthly charge, you would substitute the value of "x" into the function. For example, if you wrote 10 checks during the month, the total monthly charge would be:

f(10) = 0.45(10) + 12.50
      = 4.50 + 12.50
      = $17.00

In conclusion, the function f(x) = 0.45x + 12.50 models the situation where a bank charges $.45 for each check written plus a service charge of $12.50. The "x" represents the number of checks written during the month.

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The probability that a student chosen at random has a cat or a dog is; P(cat or dog) = 22/25.

What is probability?

Probability is that the branch of arithmetic regarding numerical descriptions of however probably an incident is to occur, or however probably it's that a proposition is true. The likelihood of an incident could be a range between 0 and 1.

Main body:

According to the question, the total number of students is; 25.

15 of them have a cat

16 of them have a dog

while, 3 of them have neither

where, x = number if students who own a cat and a dog.

Consequently, the total number of students who own a cat, a dog, both or neither is as follows;

15-x + x + 16-x + 3 = 25.

-x = 25 - 34

In essence, x = 9

the number of students who own a cat and a dog is 9.

Therefore, probability that a student chosen at random has a cat and a dog is therefore;

P(cat and dog) = 9/25.

Therefore probability that a student chosen at random has a cat or a dog is 22/25.

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There are 792 different, unique ways you can sort the 7 green apples and 5 red apples while keeping track of the order.

To determine the number of different, unique ways you can sort the 7 green apples and 5 red apples while keeping track of the order, you can use the concept of permutations.

Since you have a total of 12 apples, the number of ways to arrange them can be calculated using the formula for permutations of objects with repetition.

In this case, we have 7 green apples and 5 red apples, so the formula becomes:

P(12; 7, 5) = 12! / (7! * 5!)

Calculating this expression, we get:

P(12; 7, 5) = (12 * 11 * 10 * 9 * 8 * 7 * 6) / (7 * 6 * 5 * 4 * 3 * 2 * 1) * (5 * 4 * 3 * 2 * 1)

Simplifying, we have:

P(12; 7, 5) = 792

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The probability that a voter who favors stronger gun control laws is a Republican is 0.09 or 9%.

The probability that a voter who favors stronger gun control laws is a Republican can be found by using Bayes' theorem.

Let A be the event that a voter is a Republican and B be the event that a voter favors stronger gun control laws. Then, we want to find P(A|B), the probability that a voter is a Republican given that they favor stronger gun control laws.

Using Bayes' theorem:

P(A|B) = P(B|A) × P(A) / P(B)

P(B|A) is the probability that a voter favors stronger gun control laws given that they are a Republican, which is 0.09.

P(A) is the probability that a voter is a Republican, which is 0.09 + 0.22 + 0.11 = 0.42 (sum of Republican, Democrat, and Other probabilities).

P(B) is the overall probability that a voter favors stronger gun control laws, which is 0.09 + 0.22 + 0.11 = 0.42 (sum of Favor and Oppose probabilities for all political affiliations).

Therefore,

P(A|B) = 0.09 × 0.42 / 0.42 = 0.09

So the probability that a voter who favors stronger gun control laws is a Republican is 0.09 or 9%.

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Answer:

Hey there!

3x-5+2x+2+3x+5

3x+2x+3x-5+2+5

8x+2=90

8x=88

x=11

Let me know if this helps :)

Step-by-step explanation:

Hey, there!!

Let's simply work with it,

MA is perpendicular to AT.

To find: angle HAT.

Now,

angle HAT + (2x + 2)° + (3x + 5)° = 90° { As MA perpendicular to AT. }

Now,

Replace angle HAT by (3x - 5)°.

(3x-5)° + (2x+2)° + (3x+5)° = 90°

Open brackets,

3x - 5° + 2x + 2° + 3x + 5° = 90°

Add like terms.

8x + 2°= 90°

8x = 90°-2°

\(x = \frac{88°}{8} \)

x= 11°.

Now, finding the value of angle HAT.

(3x-5)° = 3×11°-5°

Therefore, angle HAT is 28°.

Hope it helps...

The reliability of two components in series is 0.996.

To find the reliability of the engine, we need all the two components to work. Each components has a reliability of 0.998, so to find the reliability of the engine we need to find the probability of all two components working.

Reliability is defined as the probability that a product, system, or service will perform its intended function adequately for a specified period of time, or will operate in a defined environment without failure.

We can find this probability multiplying all the ten reliabilities:

P = 0.998^2 = 0.996004

Rounding to three decimal places, we have P = 0.996

The reliability of the engine is 0.996.

Hence,

The reliability of two components in series is 0.996.

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Answer:

x = -8

Step-by-step explanation:

3x - 9 = -33

3x = -24 (add 9 to both sides)

x = -8 (divide entire equation by 3)

Answer:

x = -8

Step-by-step explanation:

Step 1: Add 9 to both sides.

3x−9+9=−33+9

3x=−24

Step 2: Divide both sides by 3.

3x      -24

3          3

  x=−8

Answer:

There are four significant digits in the number 6,024.

Step-by-step explanation:

Answer:

195 m.

Step-by-step explanation:

The time for the  sound waves to reach the fish is 0.26/2 = 0.13 seconds.

Distance = speed * time

= 1500 * 0.13

= 195 m.

Answer:

13

Step-by-step explanation:

4^2 is 16

16-3=13

that's all that you have to do you replace the x with 4 and do a normal equation

Answer: y=13

Y=(4)^2-3

y=16-3

y=13

A regular polygon is a polygon with all sides and angles congruent. It exhibits symmetry and uniformity in its sides and angles, creating a visually appealing shape.

A polygon with all sides and angles congruent is called a regular polygon. In a regular polygon, all sides have the same length, and all angles have the same measure. This uniformity in the lengths and angles of the polygon's sides and angles gives it a symmetrical and balanced appearance.

Regular polygons are named based on the number of sides they have. Some common examples include the equilateral triangle (3 sides), square (4 sides), pentagon (5 sides), hexagon (6 sides), and so on. The names of regular polygons are derived from Greek or Latin numerical prefixes.

In a regular polygon, each interior angle has the same measure, which can be calculated using the formula:

Interior angle measure = (n-2) * 180 / n

Where n represents the number of sides of the polygon.

The sum of the interior angles of any polygon is given by the formula:

Sum of interior angles = (n-2) * 180 degrees

Regular polygons have several interesting properties. For instance, the

exterior angles of a regular polygon sum up to 360 degrees, and the measure of each exterior angle can be calculated by dividing 360 degrees by the number of sides.

Regular polygons often possess symmetrical properties and are aesthetically pleasing. They are commonly used in design, architecture, and various mathematical applications.

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The expression 2a² - 16a + 32 can be factored completely as 2(a - 4)². This means that the expression can be written as the product of 2 and the square of the binomial (a - 4).

To factor the expression 2a² - 16a + 32 completely, we can start by finding the greatest common factor (GCF) of the terms.

In this case, the GCF is 2. So, we can rewrite the expression as 2(a² - 8a + 16).
Next, we need to factor the quadratic trinomial inside the parentheses.

To do this, we look for two numbers that multiply to give us the constant term (16) and add up to give us the coefficient of the linear term (-8). In this case, the numbers are -4 and -4.
So, we can rewrite the expression as 2(a - 4)(a - 4).

However, we can simplify this further by writing it as 2(a - 4)².
To summarize, the expression 2a² - 16a + 32 can be factored completely as 2(a - 4)².

This means that the expression can be written as the product of 2 and the square of the binomial (a - 4).

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Answer:

i need help too

Step-by-step explanation:

Answer: 24.4

Step-by-step explanation:

So lets review a bit about sine, cosine, and tangent.

Look at attachment below

Okay so we have the opposite side of the triangle and are trying to find the length of the adjacent side. The only trig expression that contains both opposite and adjacent is tangent. The equation goes

tanX = opposite(XZ)/adjacent (YZ)

we know what X is X = 16

and we know what opposite is opposite = 7

so now the equation looks like

tan16 = 7/adjacent

and in the question it says that tan16 = 0.287 so lets plug that in

0.287 = 7/adjacent

0.287adjacent = 7

adjacent = 7/0.287

adjacent = 24.4

YZ = 24.4

Answer:

w = 4

Step-by-step explanation:

\(\frac{w}{2}\) + 3 = 5 ( subtract 3 from both sides )

\(\frac{w}{2}\) = 2 ( multiply both sides by 2 to clear the fraction )

w = 4

Answer:

Step-by-step explanation:

Two-digit numbers are:

Sum of them is:

The only option of three different digits with the sum of 24 is 7, 8 and 9

Answer:

The answer is 7, 8 and 9. The Two-digit numbers are: ab, ac, ba, bc, ca, cb

The Sum of them is: 10a + b + 10a + c + 10b + a + 10b + c + 10c + a + 10c + b = 528

22a + 22b + 22c = 528

a + b + c = 528/22

a + b + c = 24      The only option/options of the three different digits with the sum of 24 is 7, 8 and 9.

Hope this helps, stay safe, and merry christmas!

Answer:

48%

Step-by-step explanation:

12 out o 25 are broken

so, 12/25 = .48 * 100 = 48%

Hope this helps!

Answer:

The answer to this question is 48% is broken

Answer:

first graph the y-intercept start at 0 and go up 2 plot that. Then, go up 7 from 2 and to the right 1

Step-by-step explanation:

a) The number 3 has the greatest frequency.  b) The total sample size is 18.  c) The sum of the X scores is 61. d) The sum of the squared X scores is 145.

a. The number 3 has the greatest frequency, with 4 occurrences.

b. There are 18 numbers in the data set, so the total sample size is n = 18.

c. The sum of the X scores is ΣX = 61. This can be calculated by adding up the values of all 18 numbers in the data set.

d. The sum of the squared X scores is Σ\(X^2\) = 145. This can be calculated by squaring each of the values in the data set and then adding up the results.

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Correct Question:

For the following numbers.

7 4 3 3 5 4 1 2 1

4 7 2 2 3 3 5 2 3

a. Which number had the greatest frequency?

b. What was the total sample size (n) ?

c. What was the sum of the X scores ( ΣX) ?

d. What was the sum of the squared X scores (Σ\(X^2\)) ?

Answer:

About 3.052 units

Step-by-step explanation:

I  presume you won't  need this explanation now,  but just in case;

If we draw triangle MNK, as  MN = NK we know is isosceles. Now let's draw an altitude to MK so that  it splits MK into two congruent parts (5/2 = 2.5). Given M<N = 110 degrees the altitude would split the angle into two congruent angles as well (Coincidence Theorem)---- 110/2 = 55 degrees.

Now let's study the smaller triangles, and take one as an example. Remember sin(theta) = opp/hyp. Applying this we have theta as 55 degrees, the opposite side as 2.5, and the hypotenuse is yet to be found (MN);

sin(55°)= 2.5/MN,

x = 2.5/sin(55°) ≈3.052

The probability the coin lands heads on a single toss is 0.625

Let's assume that the probability of getting heads on a single toss is denoted by p.

The probability of getting 2 heads out of 7 tosses is given by the binomial distribution

P(2 heads) = (7 choose 2) × p^2 × (1-p)^5

Similarly, the probability of getting 3 heads out of 7 tosses is

P(3 heads) = (7 choose 3) × p^3 × (1-p)^4

We are given that P(2 heads) = P(3 heads), so we can set these two equations equal to each other:

(7 choose 2) × p^2 × (1-p)^5 = (7 choose 3) × p^3 × (1-p)^4

Simplifying this equation, we get

21 × p^2 × (1-p)^5 = 35 × p^3 × (1-p)^4

Dividing both sides by p^2 * (1-p)^4, we get

21/(1-p) = 35/p

Solving for p, we get:

p = 35/(21+35) = 35/56 = 0.625

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The corner points of the feasible region are:

(0, 0), (19/12, 0), (0, -19/11), and (-6, 0).

The given system of linear inequalities is:

-15x + 9y ≤ 0-12x + 11y ≤ -19 3x + 2y ≤ -18

Now, we need to find the corner points of the feasible region and for that, we will solve the given equations one by one:

1. -15x + 9y ≤ 0

Let x = 0, then

9y ≤ 0, y ≤ 0

The corner point is (0, 0)

2. -12x + 11y ≤ -19

Let x = 0, then

11y ≤ -19,

y ≤ -19/11

Let y = 0, then

-12x ≤ -19,

x ≥ 19/12

The corner point is (19/12, 0)

Let 11

y = -19 - 12x, then

y = (-19/11) - (12/11)x

Let x = 0, then

y = -19/11

The corner point is (0, -19/11)

3. 3x + 2y ≤ -18

Let x = 0, then

2y ≤ -18, y ≤ -9

Let y = 0, then

3x ≤ -18, x ≤ -6

The corner point is (-6, 0)

Therefore, the corner points of the feasible region are (0, 0), (19/12, 0), (0, -19/11) and (-6, 0).

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The length and width of a rectangle can be expressed as x+3 and x-8 . If the area of the rectangle is 60 square inches , what is the value of x? ​

Remember that

the area of rectangle is

A=L*W

we have

L=x+3

W=x-8

substitute

A=(x+3)(x-8)

A=60 in2

so

60=(x+3)(x-8)

solve for x

x^2-8x+3x-24=60

x^2-5x-24-60=0

x^2-5x-84=0

solve the quadratic equation using the formula

we have

a=1

b=-5

c=-84

substitute

the solutions are

x=12 and x=-7 (is not a solution)

therefore

Answer:

Step-by-step explanation:

A: +2

B: +2

C: -25

D: x3

0.8133 is the probability  that a randomly chosen test taker will score between 560 and 640.

Probability is the possibility that something will happen, to put it simply. We can talk about the chance or likelihood of various outcomes when we don't know how an event will turn out. Events that follow a probability distribution are the subject of statistics.

Probability is a branch of mathematics that deals with numerical representations of how likely it is for an event to occur or for a proposition to be true. The probability of an event is a number between 0 and 1, where, roughly speaking, 0 indicates that the event is impossible and 1 indicates certainty.

P(540< x 640)

=  P ( \(\frac{560 - 560}{90}\) < \(\frac{x - mu}{sigma}\) < \(\frac{640-560}{90}\) )

By resolving this, we will obtain a probability ranging from zero to triple zero. Therefore, the likelihood will be zero. Less than zero 89 minutes our chance of being zero is zero. The values are now zero 8133 -0.5 triple zero when utilizing the table. And if we take it out, we get 0.31 33. Therefore, our likelihood of facts here ranges from 5 to 6 40. Its double three at 0.31. Therefore, this is the response to your query.

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In order for a 22% probability that a gallon of gas costs less than 1.80, the standard deviation have to be 39.21 cents.

Given data,

The average retail price of gasoline (all types) for the first half of 2005 was 212.2 cents.

Round z-value calculations to two decimal places and final answer to the nearest cent.

Method First, we have to calculate the z-value of 1.80.

Mean = 212.2 cents Standard deviation = ?

Value = 180 cents

Z = (x - μ) / σ

where, x = 180

μ = 212.2

σ = standard deviation of price distribution

Z = (180 - 212.2) / σ0.22 = P(z < (180 - 212.2) / σ)From standard normal distribution table (attached),

P(z < 0.84) = 0.7995.0.22 = 0.7995(180 - 212.2) / σσ = (180 - 212.2) / (0.22 × 0.7995)σ = 39.21 cents

Hence, the standard deviation have to be 39.21 cents in order for a 22% probability that a gallon of gas costs less than 1.80.

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