Y=3x-2
Y=2x-5
Find X and Y using substitution

Answer:

d

Step-by-step explanation:

because I had this exact same problem with my homework in math

Answer:

d is your answer.

Step-by-step explanation:

so sorry if it's wrong i don't think it is though .

9514 1404 393

Answer:

  b.  2692 ft

Step-by-step explanation:

The relation of interest between the sides of the right triangle is ...

  Tan = Opposite/Adjacent

Using the given numbers, that is ...

  tan(32°) = (building height)/(4300 ft)

Multiplying by 4300 ft, we get ...

  building height = (4300 ft)·tan(32°) ≈ 2686.9 ft

This is the height above the observer's eyes, so the height of the building above the ground is ...

  2687 +5 = 2692 . . . . feet

The building is 2692 feet tall.

Answer:

the answer is b

Step-by-step explanation:

Side Angle Side

Answer:

360-540 calories

Answer:

16 ft.

Step-by-step explanation:

A=LW

Area=Length times Width

We have the area and the Width.

112=Lx7

112÷7=L

L=16

The Length (n) is 16ft.

The missing values of the similar triangles is x = 20/3 and y = 4.5

If two triangles' corresponding angles are congruent and their corresponding sides are proportional, they are said to be similar triangles. In other words, similar triangles have the same shape but may or may not be the same size. The triangles are congruent if their corresponding sides are also of identical length.

Corresponding sides of similar triangles are in the same ratio. The ratio of area of similar triangles is the same as the ratio of the square of any pair of their corresponding sides

Given data ,

Let the first triangle be ΔABC

Let the second triangle be ΔXYZ

Now , the corresponding sides are

15 / 10 = y / 3

Multiply by 3 on both sides , we get

y = 45 / 10

y = 4.5

Now , for the similar triangles , corresponding sides of similar triangles are in the same ratio

And , 2 / 3 = x / 10

Multiply by 10 on both sides , we get

x = 20/3

Hence , the similar triangles are solved

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Answer:

0.66666666667

Step-by-step explanation:

funny brainliest?

Answer:

Step-by-step explanation:

M being midpoint of AB means:

\(x_B-x_M=x_M-x_A\qquad\quad\ \wedge\qquad y_B-y_M=y_M-y_A\\\\x_B-3=3-8\qquad\quad\wedge\qquad\quad y_B-(-2)=-2-4\\\\x_B-3=-5\qquad\quad\ \wedge\qquad\quad y_B+2=-6\\\\x_B=-5+3\qquad\quad\ \wedge\qquad\quad y_B=-6-2\\\\x_B=-2\qquad\qquad\ \wedge\qquad\qquad y_B=-8\)

we have the expression

11.5x(x+3)+350

this is the same that

11.5(A)+350

where A is the area of rectangular room

11.5 is the rate per square feet

350 is the fee for materials

therefore

the answer is

11.5 represent -----> option E

x(x+3) ------> option F

350 -----> option B

x -----> option C

x+3 ----> option D

As per the unitary method, there are 64.29 weeks does it take to empty the lake.

The term unitary method is known as a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value.

Here we have given that officials begin to release water from a full man-made lake at a rate that would empty the lake in 12 weeks, but a river that can fill the lake in 25 weeks is replenishing the lake at the same time.

And we need to find the number of weeks does it take to empty the lake

While we looking into the given question, we have identified the following values,

=> Empty rate = 1/18 job/week

=> Fill rate = 1/25 job/week

Then together rate is written as 1/x

Then the equation of the given situation is written as,

=> rate - rate = together rate

When we apply the values, then we get,

=> 1/18 - 1/25 = 1/x

Now we have to multiply thru by 18*25x, then we get,

=> 25x - 18x = 18*25

=> 7x = 18*25

Therefore, x = 64.29 weeks.

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The required answer is (f −1)'(-9) = -2√13/9.

To find (f −1)'(a), we first need to find the inverse function f −1(x).

Using the given function f(x) = x3 + 7x − 1, we can find the inverse function by following these steps:
1. Replace f(x) with y:
y = x3 + 7x − 1
The informal descriptions above of the real numbers are not sufficient for ensuring the correctness of proofs of theorems involving real numbers. The realization that a better definition was needed. Real numbers are completely characterized by their fundamental properties that can be summarized

2. Swap x and y:
x = y3 + 7y − 1
3. Solve for y:
0 = y3 + 7y − x + 1
We need to find the inverse function , Unfortunately, finding the inverse function for f(x) = x^3 + 7x - 1 is not possible algebraically due to the complexity of the function. A number is a mathematical entity that can be used to count, measure, or name things. The quotients or fractions of two integers are rational numbers.

Using the cubic formula, we can solve for y:
y = [(x - 4√13)/2]1/3 - [(x + 4√13)/2]1/3 - 7/3
Therefore, the inverse function is:
f −1(x) = [(x - 4√13)/2]1/3 - [(x + 4√13)/2]1/3 - 7/3
Now we can find (f −1)'(a) by plugging in a = -9:
(f −1)'(-9) = [(−9 - 4√13)/2](-2/3)(1/3) - [(−9 + 4√13)/2](-2/3)(1/3)
(f −1)'(-9) = [(−9 - 4√13)/2](-2/9) - [(−9 + 4√13)/2](-2/9)
(f −1)'(-9) = (4√13 - 9)/9 - (9 + 4√13)/9
(f −1)'(-9) = -2√13/9

Therefore, (f −1)'(-9) = -2√13/9.

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The mistake is that it is 1/16 not 16. The person probably did the reciprocal or incorrectly used the fraction

Answer:

The exponent for the answer should be -2. Therefore, the answer will be 4⁻² or 1/16.

Step-by-step explanation:

When dividing fractions, you subtract the exponents as long as they have the same base.

Since the exponents both have the base of 4, subtract 9 - 11.

9 - 11 = -2

The exponent would be -2 and the answer would be 4⁻².

When an exponent is negative, you take the inverse of the base raised to the positive exponent.

Since 4² = 16 or 16/1, 4⁻² would be 1/16.

The answer would be 4⁻² or 1/16.

Hope that helps.

Yes, and there are actually several methods to do so. One method to ensure congruency is to rotate and translate the triangle onto the other, which does not change the shape or size, only where it is. They perfectly match each other when rotated and translated, showing perfect congruency. Another way to ensure congruency is to find angle lengths/slope. Using the slope formula (rise/run), we can find both slopes (whch is the distance in this case) of each side length of both triangles. The angle lengths and slopes are equal to each other.

Mapping the triangle DEF onto triangle GHI gives the coinciding image so the length will be the same and thus it can prove congruency.

If two figures are exactly the same in sense of their length side all things then they will be congruent.

If it is possible to superimpose one geometric figure on the other so that their entire surface coincides.

As per the given graph,

Triangle GHI and triangle DEF are plotted.

If we map triangle DEF onto GHI since the length is the same and orientation will become the same so both triangles will coincide with each other.

And it is known that if the length of all sides of a triangle is the same then they will be called a congruent triangle.

Hence"Mapping the triangle DEF onto triangle GHI gives the coinciding image so the length will be the same and thus it can prove congruency".

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Answer:

3(24)

Step-by-step explanation:

Answer:

Your full equation is then y = -3*x + 80.

Step-by-step explanation:

This sounds like a linear equation that can be put in "y = m*x + b" form because there is a constant Y-intercept value ("b," the starting point) and a constant slope ("m," the rate of change).

The trick here is to pick out these values from the word problem. The first thing to look for are key words like "starting at,"  "at time 0," or "when x = 0." These describe when the line crosses the Y axis (which is where x = 0). This number is also the "b" from the equation for a line: y = m*x + b. Your problem contains the phrase "starting at 80 degrees Fahrenheit," so our Y-intercept is b = 80 degrees Fahrenheit.

The next thing to look for is the slope, m. The slope of the line explains how fast it changes. A very big (or very negative) value of m means a steeper line; a value of m closer to zero means a line that looks more horizontal (i.e. it doesn't change very fast). In your problem, the temperature "dropped 3 degrees per minute." Because the temperature is getting lower as time passes, the slope of the line will be negative. So, m = -3 degrees Fahrenheit per minute.

Answer:

Step-by-step explanation: i Show you every step in the picture i just sent

Answer:

Step-by-step explanation: I don't know how to work on this

The factor of the expression will be (x + 1) and (x + 1). Then the product of two binomials will be (x + 1) and (x + 1).

It is a method for dividing a polynomial into pieces that will be multiplied together. At this moment, the polynomial's value will be zero.

The expression is given below.

⇒ x² + 2x + 1

Factorize the expression, then the factor of the expression will be

⇒ x² + x +  x + 1

⇒ x(x + 1)x + 1(x + 1)

⇒ (x + 1)(x + 1)

⇒ (x + 1)²

The product of two binomials will be (x + 1) and (x + 1).

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The work required to pump all the water over the edge of the tank is approximately 271,433.64 foot-pounds.

To calculate the work required to pump all the water over the edge of the tank, we need to consider the weight of the water in the tank and the height it is lifted.

First, let's find the volume of the water in the tank. The volume of a cone is given by the formula V = (1/3)πr²h, where r is the radius and h is the height. Plugging in the values, we have:

V = (1/3)π(3²)(12)

= (1/3)π(9)(12)

= 36π

Next, we need to find the weight of the water. The weight of an object is given by the formula W = mg, where m is the mass and g is the acceleration due to gravity. The mass of the water can be found by multiplying its volume by the density of water, which is approximately 62.4 pounds per cubic foot:

m = (36π)(62.4)

≈ 22619.47 pounds

Now, we can calculate the work done by multiplying the weight of the water by the height it is lifted. In this case, the height is 12 feet:

W = (22619.47)(12)

≈ 271433.64 foot-pounds

Therefore, the work required to pump all the water over the edge of the tank is approximately 271,433.64 foot-pounds.

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The work required to pump water out of an inverted conical tank involves calculating the pressure-volume work at infinitesimally small volumes within the tank and integrating this over the entire volume of the tank. This provides an interesting application of integral calculus in Physics.

The question requires the concept of work in Physics applied to a fluid, in this case, water lying within an inverted conical tank. Work is done when force is applied over a distance, as stated by work = force x distance. In the fluid analogy, the 'force' link is the pressure exerted on the water and the distance is the change in volume of the fluid. Therefore, work done (W) = Pressure x Change in Volume (ΔV).

In this scenario, you are required to pump out water from an inverted conical tank, hence, the work you do is against the gravitational force pulling the water downwards. To calculate the total work done, you have to consider the work done at each infinitesimally small (hence, constant pressure) strip of volume and integrate over the entire volume of the tank.

The detail of calculation would require the knowledge of integral calculus and the formula for volume of a cone. I recommend considering this as an interesting application of integrals in Physics. Also remember that the volume of a cone = 1/3πr²h, where 'r' is the radius of base and 'h' is the height of cone.

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The asymptote tells us the number of mice will approach zero as cats increased y-intercept shows the number of mice with zero cats and the asymptote is y = 0 thus option (A),(B), and (E) is correct.

The graph is a geometrical representation of a function and can be plotted by taking x's and y's corresponding values within the interval.

For example plot of y = x³ ,y = sinx.

The given graph of the number of mice in the number of weeks the cat adopted.

The asymptote of the graph is y = 0.

The asymptote tells that the number of the mouse will become zero when the number of cats becomes infinite.

Hence "The asymptote tells us the number of mice will approach zero as cats increased y-intercept shows the number of mice with zero cats and the asymptote is y = 0".

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Answer:

see the explanation below

Step-by-step explanation:

The expression for the cost can be given as

y=mx+c

where x= the distance

           m= the cost to move x distance

            c= the fixed cost

Therefore the total cost to ship the cost will be y

Answer:

\(9\frac{3}{16}\)

Step-by-step explanation:

My steps are shown below.

\(\frac{49}{64}(12)\)

\(\frac{49}{64} * \frac{12}{1}\)

\(\frac{49*12}{64}\)

\(\frac{588}{64}\)

\(9\frac{12}{64}\)

\(9\frac{3}{16}\)

Hopefully that was helpful! Let me know if you have any more questions.

Answer:

Triangle D.

Step-by-step explanation:

A scalene triangle has different sides.

The angle 1 can be named as follows:

∠RST

∠TSR

∠S

There are various ways to name an angles. You can name an angle by its vertex, by the three points of the angle (the middle point must be the vertex), or by a letter or number written within the opening of the angle.

Therefore, let's name the angle 1 indicated on the diagram as follows:

Hence, the different ways to name the angle 1 is as follows:

∠RST or ∠TSR

Or

∠S

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Answer:

The student may have forgotten the negative signs.

Step-by-step explanation:

Obviously, 4+5 = 9. However, this student may have forgotten that negative plus negative is equal to further negative, which is what we want. Instead, the answer 5 was provided, which leads to an incorrect sum of 1.

Answer:

h=5/18

Step-by-step explanation:

Hi there!

If you try to solve 1/2-h=2/9 for h immediately, you will find that you cannot because the denominator is odd for 2/9. Multiply 2 for the numerator and the denominator to get 4/18. Now we have 1/2-h=4/18. Multiply the numerator and denominator by 9 to get 9/18-h=4/18. H=5/18.

Answer:

\(\boxed{h=\dfrac{5}{18}}\)

Step-by-step explanation:

\(\textsf {$\dfrac{1}{2} - h$ = $\dfrac{2}{9}$}\)

1. Subact  \(\dfrac{1}{2}\)  from both sides:

\(\textsf {$\dfrac{1}{2} - h$ = $\dfrac{2}{9}$}\\\\\textsf {$\dfrac{1}{2}-\dfrac{1}{2} - h$ = $\dfrac{2}{9} -\dfrac{1}{2}$}\\\\\textsf {$-h$ = $\dfrac{4-9}{18}$}\\\\\textsf {$-h$ = $\dfrac{-5}{18}$}\)

2. Divide both sides by -1

\(\textsf {$-h$ = $\dfrac{-5}{18}$}\\\div -1 \div-1\\\\ \boxed{h=\dfrac{5}{18}}\)

Final answer: \(\boxed{h=\dfrac{5}{18}}\)

Hope this helps!

Answer:

10.50

Step-by-step explanation:

16.50-6