Write the equation of the line that passes through the points (4,-1) and (4,8)

Answer:

Step-by-step explanation:

y= 20x+40

y- is the cost of rental

x-number of days

20 is the slope

40-flat rate and the y-intercept is at (0,40)

Answer:

y = x - 6

Step-by-step explanation:

y = mx + b

m = slope

Slope = 1; (-2, -8)

                 (x₁, y₁)

y - y₁ = m(x - x₁)

y - (-8) = 1(x - (-2)

y + 8 = 1(x + 2)

y + 8 = x + 2

   -8         -8

---------------------

y = x - 6

I hope this helps!

Answer:

-----------------------------

The better buy is given by the following brand:

Brand A.

The better buy is obtained applying the proportions in the context of the problem.

A proportion is applied as the cost per ounce is given dividing the total cost by the number of ounces.

Then the better buy is given by the option with the lowest cost per ounce.

The cost per ounce for each brand is given as follows:

$8 per ounce is a lesser cost than $9.3 per ounce, hence the better buy is given by Brand A.

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Answer:

50 I think

Step-by-step explanation:

30% of 500 is 150 so we have 150 red balls

40% of 500 is 200 so we can assume 50 balls were taken out

Answer: 45 fish

Step-by-step explanation:

To find the answer you would first convert the percentage into a decimal which would be 25% for this problem. Then you multiply the original price by the decimal. 60 x 0.25=15. Next you would subtract the discount from the original price which would be 60-15=45.

Hope this helped!!

Answer: x=4

Step-by-step explanation:

Answer:

x=4

Step-by-step explanation:

6x+2=26

Subtract 2 from both sides to isolate the variable

6x=24

Divide by 6

x=4

The value of h(2) for the function h(x) = 18 - 9x + x^4 is 16.

According to the given question.

We have a function h(x) = 18 - 9x + x^4

Here, we have to find the value of h(2). For this we will substiute x = 2 in the function h(x) = 18 - 9x + x^4.

Therefore, the value of h(2) for the function h(x) = 18 - 9x + x^4 is given by

h(x) = 18 - 9x + x^4

h(2) = 18 - 9(2) + 2^4

h(2) = 18 - 18 + 16

h(2) = 16

Hence, the value of h(2) for the function h(x) = 18 - 9x + x^4 is 16.

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Answer:

AC=9CM

Step-by-step explanation:

Since ABCD is a kite, we know that the two diagonals, AC and BD, intersect at right angles and that the two pairs of adjacent sides are congruent. Therefore, we have:

AC = BD and AB = BC = CD = DA

We also know that DE = EB, which means that triangle ADE is congruent to triangle BEC (by the side-side-side congruence rule), so we have:

AD = BC and AE = EC

AD=5cm and DC=4cm

Combining these equations, we have:

AC = AD + DC

AC=5cm+4cm=9cm

The dimensions of the rectangle are 10 feet (length) and 8 feet (width).

To find the dimensions of the rectangle with an area of 80 square feet and a width that is 2 feet less than the length,

follow these steps:

1. Let the length of the rectangle be L feet and the width be W feet.

2. According to the given information, W = L - 2.

3. The area of a rectangle is calculated by multiplying its length and width: Area = L × W.

4. Substitute the given area and the relationship between L and W into the equation: 80 = L × (L - 2).

5. Solve the quadratic equation: 80 = L² - 2L.

6. Rearrange the equation: L² - 2L - 80 = 0.

7. Factor the equation: (L - 10)(L + 8) = 0.

8. Solve for L: L = 10 or L = -8 (since the length cannot be negative, L = 10).

9. Substitute L back into the equation for W: W = 10 - 2 = 8.

So, the dimensions of the rectangle are 10 feet (length) and 8 feet (width).

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Answer:I think you can say like the most bought music in class B is alternative and the lowest one is classical and so on

Step-by-step explanation:

Answer:

The answer is 18x^2 - 33x + 12.

Step-by-step explanation:

Use the FOIL method: first, outer, inner, and last.

(6x - 3)(3x - 4)

6x • 3x = 18x^2

6x • (-4) = -24x

(-3) • 3x = -9x

(-3)(-4) = 12

= 18x^2 - 24x - 9x + 12

= 18x^2 - 33x + 12

Answer:

Vertical angles! Hope this helped!<3

Answer:

Vertical Angles

Step-by-step explanation:

Adjacent Angles are adjacent to each other and share the same side.

Complementary Angles add up to 90°

Vertical Angles are similar angles on opposite sides of each other

Reflex Angles are angles that are over 180°

Therefore Vertical Angles is the answer

Given that the ordered pair makes the function and these pairs are

[ (2,5), (7,1), (5,9), (8,0), ( , ) ]

Since the function is the one that has the input having only one output.

Hence, the given options (3,4) is correct.

Therefore the ( 3, 4 ) is the pair.

Answer:

x = ±2i

Step-by-step explanation:

√-1 is imaginary number i

Step 1: Write equation

3x² = -12

Step 2: Solve for x

The equation is solved for x and the solutions of x = 2i or x = -2i.

Given data ,

To solve the equation 3x^ = -12, we can divide both sides of the equation by 3 to isolate x²:

(3x²)/3 = (-12)/3

Simplifying further, we get:

x² = -4

To find the value of x, we can take the square root of both sides of the equation:

√(x²) = √(-4)

Since we're dealing with a square root of a negative number, we need to introduce the concept of complex numbers.

The square root of -4 can be written as ±2i, where i is the imaginary unit (√(-1)).

So, the solutions to the equation 3x² = -12 are:

x = ±√(-4) = ±2i

Hence , the equation is solved and x can take on the values 2i or -2i.

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P(Picking a striped shirt and a pink tie)

= 2/(4 + 3 + 2) * 3/(2 + 3 + 3)

= 2/9 * 3/8

= 1/12

1/12  is the probability that on the first day of school he picks a red tie OR a blue tie.

Probability = number of paths to success. A total number of possible outcomes. For example, the probability of flipping a coin and getting heads is ½. This is because there is one way to get heads and the total number of possible outcomes is 2 (heads or tails). We write P(heads) = ½.

Probability provides information about the probability that something will happen. For example, meteorologists use weather patterns to predict the likelihood of rain. Epidemiology uses probability theory to understand the relationship between exposure and risk of health effects.

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8÷7=z and z is the answer you got when you divided,that's how I understand the question

The total cost of the shirts that the foreign student buy will be 48.71 Krona.

From the information, the person finds a special deal, 7 t-shirts for $07.93, that she would like to purchase for her family.

Therefore, the total cost will be:

= $7.93 / 7 × 5

= $5.66

Therefore, the amount when converted to Krona will be:

= $5.66 × 8.6064

= $48.7

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Answer:

The answer is C "608.313 Krona"

Step-by-step explanation:

Got it right on my quiz.

The distribution for X is a negative binomial distribution, denoted as nb(x;6, 188​), with parameters r = 6 (number of successes), p = 8/18 (probability of success in each trial).

To compute the probabilities:

P(X = 2): nb(2;6, 8/18)

P(X ≤ 2): nb(0;6, 8/18) + nb(1;6, 8/18) + nb(2;6, 8/18)

P(X ≥ 2): 1 - P(X < 2) = 1 - P(X ≤ 1)

To calculate the mean value and standard deviation of X:

Mean (μ) = r * (1 - p) / p

Standard Deviation (σ) = sqrt(r * (1 - p) / (p^2))

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Answer: Look at step by step

Step-by-step explanation:

(ax + b)(ax + b) = \(a^{2}\) \(x^{2}\)+ 2abx + \(b^{2}\)

Substitute g into x

\(a^{2}\) = 7

a = \(\sqrt{7}\)

2ab = -3

b = -3 / (2 x \(\sqrt{7}\))

\(b^{2}\) = 9 / (4 x 7) = 9/28

So the term to be added to make a perfect square is 9/28

When factorized would get (\(\sqrt{7}\)x - 3/2\(\sqrt{7}\))(\(\sqrt{7}\)x - 3/2\(\sqrt{7}\))

If this doesn't help, maybe it is best you ask your teacher instead of listening to a random person on the internet. Hope this helps though

Answer:

On the third day u can use 1/3 also.

Step-by-step explanation:

1/3 x 3 = 3/3 or 1.

Answer:

x=176 degrees

Step-by-step explanation:

The first step to solving this is filling out any information we have. We know a solid line is 180 degrees, so the angle next to 92 must be 88.

We also know that the length of the line dividing 92 and 88 is equal to the other line with a small line in the middle. Because of this, the angle above the first 88 we found is also 88 degrees.

Now that we know two of the angles in the triangle add up to 176, we can figure out that the other angle is equal to 4. We know this because the sum of the interior angles of a triangle must equal 180.

This may seem off to you, but keep in mind that this diagram is likely not to scale.

Using the same rule we used for the first part we did, we can deduce that x equals 176.

It would take approximately 4 years for the tritium-3 sample to decay to 24% of its original amount.

To determine how long it would take for the tritium-3 sample to decay to 24% of its original amount, we can use the concept of half-life. The half-life of tritium-3 is approximately 12.3 years.

Given that the sample decayed to 84% of its original amount after 4 years, we can calculate the number of half-lives that have passed:

(100% - 84%) / 100% = 0.16

To find the number of half-lives, we can use the formula:

Number of half-lives = (time elapsed) / (half-life)

Number of half-lives = 4 years / 12.3 years ≈ 0.325

Now, we need to find how long it takes for the sample to decay to 24% of its original amount. Let's represent this time as "t" years.

Using the formula for the number of half-lives:

0.325 = t / 12.3

Solving for "t":

t = 0.325 * 12.3
t ≈ 3.9975

Therefore, it would take approximately 4 years for the tritium-3 sample to decay to 24% of its original amount.

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we know that

The sum of the internal angles in the triangle must be  degrees

see the attached figure with letters to better understand the problem

Step

Find the measure of the angle x

In the triangle ABC

solve for x

therefore

the answer Part a)  is

the measure of angle x is

Step

Find the measure of the angle z

we know that

--------> by supplementary angles

substitute the value of x

therefore

the answer Part b)  is

the measure of angle z is

Step

Find the measure of the angle y

In the triangle ACD

solve for y

therefore

the answer Part c)  is

the measure of angle y is

Answer:

-19.

Step-by-step explanation:

4 + 7 + 9 + 5 - 44

Doing the adds first;

= 25 - 44

= -19.

The statement "a line segment is a part of a line that is bounded by two distinct end points and contains every point on the line between its endpoints." is True because a line segment is defined as a part of a line that is bounded by two distinct end points and contains all the points on the line between those endpoints.

A line segment is a part of a line that has two endpoints and connects them. It is the shortest distance between two points and has a definite length, but no width or height. A line segment can be part of a straight line or a curved line.

A line segment is a section of a line that is defined by two distinct end points and includes every point on the line between them. It is the basic building block of geometry and can be used to measure distances, angles, and shapes.

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It would be more appropriate to multiply the rate of 4 apples per minute by the given time of 8 minutes. This would result in 32 apples, as Dennis correctly stated, but his reasoning behind this calculation was flawed.

Dennis' reasoning is incorrect.

To determine the rate of picking apples per minute, Dennis correctly divided the total number of apples (24) by the time it took (6 minutes), resulting in 4 apples per minute. However, his approach to calculating the number of apples that could be picked in 8 minutes is flawed.

Dennis multiplied the rate of picking apples per minute (4 apples) by the given time (8 minutes), assuming that the rate remains constant. This approach would be valid if the rate of picking apples per minute were constant, but in this scenario, it is not necessarily the case.

The rate of picking apples could vary depending on factors such as fatigue, efficiency, or other variables. Therefore, it is not accurate to assume that the rate of picking apples per minute remains the same over a longer duration of time.

To determine the number of apples that could be picked in 8 minutes, it would be more appropriate to multiply the rate of 4 apples per minute by the given time of 8 minutes. This would result in 32 apples, as Dennis correctly stated, but his reasoning behind this calculation was flawed.

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Answer:

number of pennies = 54

Step-by-step explanation:

(4,60) ; (6, 65)

Find the slope

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

          \(=\frac{65-60}{6-4}\\\\=\frac{5}{2}\)

m = 5/2 and (4,60)

Equation of the line: y - y1 = m (x -x1)

\(y - 60 = \frac{5}{2}(x -4)\\\\y - 60 = \frac{5}{2}x-\frac{5}{2}*4\\\\y- 60 = \frac{5}{2}x-10\\\\y =\frac{5}{2}x-10+60\\\\y=\frac{5}{2}x + 50\)

x-----> determine the number of pennies and y determines the mass of pennies.

Here mass (y -value) is given as 185. We have find the corresponding x-value. So plugin  y  = 185 in the above equation,

\(185 = \frac{5}{2}x+50\\\\185-50=\frac{5}{2}x\\\\135=\frac{5}{2}x\\\\135*\frac{2}{5}=x\\\\27*2=x\)

x = 54