13
y у
3
Х
4
What is y?

Answer:

(i)unique solution

Explanation:

We solve for x1 thus in the first equation:

x1-3x3=-3

x1-9=-3

x1=-3+9

x1= 6

We solve for a thus in the second equation:

2x1+ax2-x3=-2

2+a2-x3=-2

a2-x3=-4

a2=-4+x3

The equation will be y = -15x + 40

Equations help us to understand a particular problem better, they give us possible insights into the situation. Equation Formation is an important aspect of Mathematics. We can form equations on the basis of the information given and then analyze it.

Given:

The biker, Dudley wants to travel 40 miles.

It is given that he travels 30 miles every 2 hours.

Obtaining Equation,

Distance traveled in 2 hours = 30 miles

Then, distance traveled in x hours = \(\frac{30}{2}*x = 15x\)

So, the remaining distance to cover = 40 - 15x

or  y = 15x - 40

To read more about equations, visit https://brainly.com/question/10413253

#SPJ4

29

One side is 8 which means the opposite side it 8, 52cm divided by 8 is 6.5. Add 8+8 then 6.5+6.5. Put those together you get 29 as the perimeter.

Answer:

Disagree.

If you rotate the octagon 90° it will look the same.

good luck, i hope this helps :)

Answer:

Disagree

Step-by-step explanation:

If you have any shape and you rotate it 90 degrees, it moves down and to the right, not onto itself.

Answer:

-25

Step-by-step explanation:

You can take 10÷-⅖=-25

Answer:

x = -25

Step-by-step explanation:

1. combine all terms into a single fraction

-2x/5 = 10

2. multiply all terms by the same value to eliminate fraction denominators

5 x -2x/5 = -5 x 10

3. cancel multiplied terms that are in the denominator

-2x = -5 x 10

4. multiply the numbers

-2x = -50

5. divide both sides of the equation by the same term

-2x/2 = -50/2

6. simplify

x = -25

sorry if it's a lot to read :) (edit: I didn't see the - sign lol sorry)

Given:

The endpoints of line segment CD are C(-4,7) and D(0,-3).

To find:

The midpoint of CD.

Solution:

Midpoint formula:

\(Midpoint=\left(\dfrac{x_1+x_2}{2},\dfrac{y_1+y_2}{2}\right)\)

Using the midpoint formula, the midpoint of CD is

\(Midpoint=\left(\dfrac{-4+0}{2},\dfrac{7-3}{2}\right)\)

\(Midpoint=\left(\dfrac{-4}{2},\dfrac{4}{2}\right)\)

\(Midpoint=\left(-2,2\right)\)

Therefore, the midpoint of the line segment CD is (-2,2).

Answer:

Step-by-step explanation:

To solve the given equation \(\sf x - y = 4 \\\), we can perform the following calculations:

a) To find the value of \(\sf 3(x - y) \\\):

\(\sf 3(x - y) = 3 \cdot 4 = 12 \\\)

b) To find the value of \(\sf 6x - 6y \\\):

\(\sf 6x - 6y = 6(x - y) = 6 \cdot 4 = 24 \\\)

c) To find the value of \(\sf y - x \\\):

\(\sf y - x = - (x - y) = -4 \\\)

Therefore:

a) The value of \(\sf 3(x - y) \\\) is 12.

b) The value of \(\sf 6x - 6y \\\) is 24.

c) The value of \(\sf y - x \\\) is -4.

\(\huge{\mathfrak{\colorbox{black}{\textcolor{lime}{I\:hope\:this\:helps\:!\:\:}}}}\)

♥️ \(\large{\underline{\textcolor{red}{\mathcal{SUMIT\:\:ROY\:\:(:\:\:}}}}\)

Answer:

you would need 6 scoops of sugar

Answer:

You would need 15 scoops of sugar per 3.5 oz

Step-by-step explanation:

Answer:

Each card will have a value of $15 when they equal after 600 days which also is 20 30-day periods.

Step-by-step explanation:

Card1: \(85 - \frac{3.50}{30} x\)

Card2: \(75 - \frac{3}{30} x\)

x is number of days

\(85 - \frac{3.50}{30} x = 75 - \frac{3}{30} x\)

2550 - 3.50x = 2250 - 3x

2550 - 0.50x = 2250

-0.50x = -300

x = 600 days

Card1: \(85 - \frac{3.50}{30} (600)\)

         85 - 70 = 15 dollars

Card2: \(75 - \frac{3}{30} (600)\)

         75 - 60 = 15 dollars

The value of each card will be when they have equal value is $15.

In mathematics, an equation is a formula that expresses the equality of two expressions by connecting them with the equal sign = .

Now, Let x be the number of time periods for which the gift card is not used, then

For the gift card $ 85 if it is not used for x periods, then the amount that will be lost is

85 - 3.50 x---------------------(1)

For the gift card $ 75 if it is not used for x periods, then the amount that will be lost is

75 - 3x---------------------- (2)

Now when both the amount lost is equal

85 - 3.50 x = 75 - 3x

solving the equation, we get

or, 3.50 x - 3x = 85 -75

or, 0.50 x = 10

or,  x = 20

Thus the value of gift cards will be equal for 20 ,30 day periods.

Now,the value of each card be when they have equal​ value

The two cards  will have equal value after 20, 30 day periods, this denotes that at this time, the value of each card will be equal.

Then

85 - 3.50 x = 75 - 3x

substituting  x = 20, we get

85 - 3.50*20 = 75 - 3*20

85 - 70  = 75 - 60

15  = 15

So, when they have equal​ value, the value of each card will be $15.

More about equations :

https://brainly.com/question/14593633

#SPJ2

Answer:

The answer is B.

Step-by-step explanation:

The answer would be  a) With Replacement 16,807 points will be in the sample space if batteries are selected.

The sample space with replacement would be 7^5 = 16,807 points. This means that when selecting five batteries from a bag of seven with replacement, the total number of points would be 16,807. This is because each of the five batteries could potentially be from the same brand, so the sample space would include all 16,807 possibilities of the combination of 5 batteries from the 7 available.

B) Without Replacement: The sample space without replacement would be 7P5 = 21,053 points. This means that when selecting five batteries from a bag of seven without replacement, the total number of points would be 21,053. This is because each of the five batteries must be from a different brand, so the sample space would include all 21,053 possibilities of the combination of 5 batteries from the 7 available.

In conclusion, the sample space would have more points if the batteries are selected without replacement compared to when the batteries are selected with replacement. This is because when batteries are selected without replacement, each of the five batteries must be from a different brand, whereas when batteries are selected with replacement, the same brand could be chosen multiple times.

To get more information about probability click here :

https://brainly.com/question/11234923

#SPJ11

Answer: 105

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

the sum of all angles in a triangle is always 180°.

the combination of an inner and an outer angle towards a flat line is always 180°. simply because that line simulates a diameter of a circle with the vertex being the center. and half a circle has 180°.

so,

180 = angle 3 + angle 4 = angle 3 + 120°

angle 3 = 60°

180 = angle 1 + angle 2 + angle 3 = angle 1 + 35 + 60

angle 1 = 180 - 35 - 60 = 85°

180 = angle 1 + angle 5 = 85 + angle 5

angle 5 = 95°

Answer:

x = 49

Step-by-step explanation:

Given

\(\frac{x-16}{x+6}\) = \(\frac{3}{5}\) ( cross- multiply )

5(x - 16) = 3(x + 6) ← distribute parenthesis on both sides

5x - 80 = 3x + 18 ( subtract 3x from both sides )

2x - 80 = 18 ( add 80 to both sides )

2x = 98 ( divide both sides by 2 )

x = 49

Answer:

x = - 49

Step-by-step explanation:

Solve for X by cross multiplying.

Answer:

I cant see the line also just find out where the Y and the X is and that should help you

Step-by-step explanation:

Answer:

red: 1

blue: 2

purple: 9

orange: 8

green: 4

Step-by-step explanation:

Answer:

x = 9

Step-by-step explanation:

Theorem:

The measure of an exterior angle of triangle equals the sum of the measures of its two remote interior angles.

The angle measuring 12x + 14 is an exterior angle of the triangle.

The angles measuring 76 deg and 1 + 5x are its remote interior angles.

12x + 14 = 1 + 5x + 76

12x + 14 = 5x + 77

7x = 63

x = 9

Quadratic functions f(x) can be written in three forms.

Factored form, the product of a constant and two linear terms:

The parameters p and q are the roots of the function (the x-intercepts of the graph y=f(x)). Converting a quadratic function to factored form is called factoring.

Hence, The factored form gives the zeros of the parabola

The correct option is D

(a) Rounding up to the nearest whole number, the minimum sample size required is n = 90.

(b) Using the given information, the minimum sample size required is 69.

(a) The range rule of thumb states that the range of a sample tends to be about four times the standard deviation of the population. Using this rule, we can estimate the sample size required.

Given that the range of the pulse rates is from 40 bpm to 104 bpm, the range is 104 - 40 = 64 bpm.

According to the range rule of thumb, the range is approximately four times the standard deviation. Therefore, we can estimate the standard deviation as 64 / 4 = 16 bpm.

Using this estimated standard deviation, we can calculate the required sample size using the formula:

n = (Z * σ / E)^2

Where:

Z is the Z-score corresponding to the desired confidence level (90% confidence corresponds to a Z-score of approximately 1.645),

σ is the estimated standard deviation,

E is the desired margin of error (3 bpm).

Plugging in the values, we have:

n = (1.645 * 16 / 3)^2

n ≈ 89.06

Rounding up to the nearest whole number, the minimum sample size required is n = 90.

(b) If we assume that the standard deviation of the population is o = 11.3 bpm (based on the sample of 177 male pulse rates), we can calculate the required sample size using the formula mentioned earlier:

n = (Z * σ / E)^2

Plugging in the values:

n = (1.645 * 11.3 / 3)^2

n ≈ 68.87

Rounding up to the nearest whole number, the minimum sample size required is n = 69.

Therefore, using the given information, the minimum sample size required is 69.

Visit here to learn more about whole number brainly.com/question/29766862

#SPJ11

Answer:

100 miles

Step-by-step explanation:

Two plans are being offered for the renting of cars.

Plan A:

Cost per week = $200

Cost for each mile = $0.35

Plan B:

Cost per week = $180

Cost for each mile = $0.55

To find:

Number of miles for which the cost is same ?

Solution:

Let the number of miles driven so that the cost becomes the same = \(m\) miles

First of all, let us find the cost for each plan as per \(m\) miles.

Cost as per plan A = Cost per week + Cost for \(m\) miles = $200 + $0.35\(m\)

Cost as per plan B = Cost per week + Cost for \(m\) miles = $180 + $0.55\(m\)

Now, putting both the costs equal to find the value of \(m\):

\(200 +0.35m = 180 +0.55m\\\Rightarrow 20 = 0.20m\\\Rightarrow m = \bold{100\ miles}\)

Therefore, after 100 miles the cost from each plan will be the same.

Answer:

more than one than its a and b but only one than its a

Answer:

A

Step-by-step explanation:

the order of letter should resemble the same shape

Answer:

8

Step-by-step explanation:

Answer:

Answer is 8 :D

Step-by-step explanation:

The common factor of those 2 numbers are 1, 2,4,8 :)

The function which represents the cost to drive a car from this agency miles x a day is :

C(x) = 15, if 0 ≤ x ≤ 200

      = 15 + 0.05x, if x > 200

Given that,

A car rental agency charges $15 a day for driving a car 200 miles or less.

The function can be written as,

C(x) = 15 if 0 ≤ x ≤ 200

If a car is driven over 200 miles, the renter must pay $0.05 for each mile over 200 driven.

C(x) = 15 + 0.05x, if x > 200

Hence the correct option is D.

Learn more about Functions here :

https://brainly.com/question/29067911

#SPJ1

The statement "I estimate that the probability of my getting married in the next 3 years is 0.7" does make sense.

As individuals, we can make personal estimates or predictions about events that are relevant to our lives, such as the probability of getting married in a certain timeframe. These estimates are based on our own subjective beliefs, experiences, and expectations. While they may not be based on precise mathematical calculations or rigorous statistical analysis, they can still reflect our personal opinions or perceptions.

In this case, the person is providing an estimate that they believe there is a 0.7 (or 70%) probability of getting married within the next 3 years. This estimate is a subjective assessment of their own chances based on various factors such as their current relationship status, personal goals, or cultural norms.

It is important to note that personal estimates like this are not necessarily based on concrete evidence or universally applicable probabilities. They can vary greatly from person to person and are subjective in nature. However, they can still hold personal meaning and influence one's decision-making or expectations regarding future events.

Learn more about probability here:

https://brainly.com/question/31828911

#SPJ11

Answer: 7.2

Step-by-step explanation: Cuz 5.6+12.9=18.5, 18.5-11.3=7.2

The missing number is 7.2.

We have the following expression.

5.6 + 12.9 = 11.3 + x

We have to find x.

Decimal numbers include those numbers which have a whole number and the fractional part separated by a decimal point.

According to the question -

5.6 + 12.9 = 11.3 + x

x = 18.5 11.3 = 7.2

Hence, the missing number is 7.2

To solve more questions on Decimal numbers, visit the link below-

brainly.com/question/4708407

#SPJ2

∬R 6x^2y dA = ∬R (6(4v + 3u)/25)^2((u - 4v)/25) |J| du dv

= ∬R 36(16v^2 + 24uv + 9u^2)(u - 4v)/625 du dv

Integrating over the new bounds of u and v (0 to 1 for u and 0 to 2 for v), we can evaluate the double integral.

To find the double integral of 6x^2y dA over the region R, where R is enclosed by the lines 4x - 3y = 0, 4x - 3y = 1, x + 4y = 0, and x + 4y = 2, we will perform a change of variables using u = 4x - 3y and v = x + 4y.

First, we need to find the Jacobian determinant of the transformation:

J = ∂(u,v)/∂(x,y) = (4 * 4) - (3 * 1) = 16 - 3 = 13.

Now, we can express x and y in terms of u and v:

4x - 3y = u

x + 4y = v

Solving these equations, we get:

x = (4v + 3u) / 25

y = (u - 4v) / 25

Next, we need to determine the new bounds of integration for u and v. The original region R can be expressed as follows:

0 ≤ 4x - 3y ≤ 1

0 ≤ x + 4y ≤ 2

Substituting the expressions for x and y in terms of u and v, we have:

0 ≤ u ≤ 1

0 ≤ v ≤ 2

Now, we can rewrite the integral in terms of u and v:

∬R 6x^2y dA = ∬R (6(4v + 3u)/25)^2((u - 4v)/25) |J| du dv

= ∬R 36(16v^2 + 24uv + 9u^2)(u - 4v)/625 du dv

Integrating over the new bounds of u and v (0 to 1 for u and 0 to 2 for v), we can evaluate the double integral.

For more questions on integral

https://brainly.com/question/30094386

#SPJ8

9 goes into 18 two times.

Here, we have,

To determine how many times 9 goes into 18,

we need to divide 18 by 9.

now, we have,

When we divide 18 by 9, the result is 2.

i.e. 18/9 = 2

This means that 9 goes into 18 exactly 2 times without any remainder.

Therefore, 9 goes into 18 two times.

To learn more on division click:

brainly.com/question/21416852

#SPJ6

It should be noted that the month when the.price of his phone will be less in website B than website A is D. 8.

It should be noted that there are two websites that have different functions relating to the cost which was illustrated.

Website A = 500(0.85)^t

when t = 8, the cost will be:

50(0.85)^t

= 50(0.85)^8

= $13.6

It should be noted that for website B, the cost is illustrated as:

Website B = 50 - 5t

B = 50 - 5(8)

= 50 - 40

= 10

Therefore, it should be noted that the month when the.price of his phone will be less in website B than website A is 8.

Learn more about expressions on:

brainly.com/question/723406

#SPJ1

Answer: 11.18 mi

Step-by-step explanation:

      They give us all the information we need to solve. We will be using the Pythagorean theorem to help us solve this question.

    Given:

a² + b² = c²

    Substitue values:

5² + 10² = c²

    Square values:

25 + 100 = c²

    Addition:

125 = c²

    Square root both sides:

\(\sqrt{125}\) = c

    Square root and round at hundredths place:

c ≈ 11.18 mi

Answer:

11.18 miles

Step-by-step explanation:

We see a right triangle here

and a² + b² = c² shows the relationship between all sides of the triangle

c is the hypotenuse and also the distance between the planes.

Let's plug in the values 5 and 10 in the equation to find c

(5)² + (10)² = c²

Solve!

25 + 100 = c²

125 = c²

find the square root of 125

√125 = √c²

c ≈ 11.18 miles