{8x + 9y = −3 6x + 7y = 1 What values of x and y satisfy the system of equations

Come on, now. Incomplete question.

Answer:

is it late now

Step-by-step explanation:

Answer:

A rectangular equation, or an equation in rectangular form is an equation composed of variables like x and y which can be graphed on a regular Cartesian plane.

Parametric equations are a set of equations that express a set of quantities as explicit functions of a number of independent variables, known as "parameters." For example, while the equation of a circle in Cartesian coordinates can be given by r^2=x^2+y^2, one set of parametric equations for the circle are given by

x=r cost

y=r sin

Note that parametric representations are generally nonunique, so the same quantities may be expressed by a number of different parameterizations. A single parameter is usually represented with the parameter t, while the symbols  u and v are commonly used for parametric equations in two parameters.Parametric equations provide a convenient way to represent curves and surfaces, as implemented, for example, in the Wolfram Language commands ParametricPlot[{x, y}, {t, t1, t2}] and ParametricPlot3D[{x, y, z}, {u, u1, u2}, {v, v1, v2}]. Unsurprisingly, curves and surfaces obtained by way of parametric equation representations are known as parametric curves and parametric surfaces, respectively.

Also if you dont know how to graph them you can Use DESMOS graphing calculator

bearing in mind that a whole is simply same/same or just 1.

3 dozen, there are 3 dozens in 3 dozen, obviously

dozen dozen dozen.

in 2 dozens, there are 2 of course

dozen dozen.

if 3 dozens is three thirds namely 3/3 = 1 = whole, then 2 dozens is just two of those dozens, namely two thirds, 2/3.

so if we use that many ingredients to make a whole three thirds, how much will it be to make only two thirds of it?  well, is simply their product, so we'll simply multiply each ingredient amount by 2/3.

[tex]\bf \stackrel{flour}{3\cdot \frac{2}{3}}\qquad \stackrel{sugar}{1\cdot \frac{2}{3}}\qquad \stackrel{chips}{2\cdot \frac{2}{3}}\qquad \implies \qquad \stackrel{flour}{2}\qquad \stackrel{sugar}{\frac{2}{3}}\qquad \stackrel{chips}{\frac{4}{3}}[/tex]

Answer: second option.

Step-by-step explanation:

When two parallel lines are intersected by a third line (which is called "Transversal"), the angles that are of the same side of the transversal (but one located in interior and the other one located in the exterior), are known as "Corresponding angles".

Corresponding angles are congruent.

You can observe that the angle 2 and the angle 6 are Corresponding angles. Therefore, the missing justification is: "Corresponding angles formed by a transversal on parallel lines are congruent."

Answer:

Corresponding angles formed by a transversal on parallel lines are congruent.

Answer:

  C)  Two intercepting parabolas are shown, one facing downward and one facing upward. The downward facing parabola has a maximum at (0,1) and intercepts the x axis at 1 and negative 1. The upward facing parabola has a minimum at (0,-4) and intercepts the x axis at 2 and negative 2

Step-by-step explanation:

As shown in the attached, the graph of y = -x² +1 has its vertex at (0, 1) and opens downward. It crosses the x-axis at ±1. The graph of y = x² -4 has its vertex at (0, -4), opens upward, and crosses the x-axis at ±2. The description of this graph matches choice C.

Answer with step-by-step explanation:

A. WX is perpendicular to XY - TRUE:

(since X is adjacent to X and Y and all angles are 90 degrees in a square, therefore WX is perpendicular to XY)

B. ∠W is congruent to ∠X - TRUE:

(all angles in a square are equal to each other)

C. ∠W is supplementary to ∠X - TRUE:

(∠W and ∠X both are right angles which add up to 180 degrees so they are supplementary angles)

D. WXYZ is a rhombus - TRUE:

(a rhombus has all sides equal in length and so has a square so it is a rhombus)

E. WXYZ is a trapezoid - FALSE:

(a trapezoid has only one pair of parallel sides while a square has two pairs of parallel sides)

F. WX is parallel to YZ - TRUE:

(WX and YZ are parallel to each other)

Answer:

x = -3 and y = -2

Step-by-step explanation:

It is given that,

-7x + 6y = 9     ----(1)

-2x - 5y = 16    -------(2)

To find the solution of given equations

eq(1) * 2 ⇒

-14x + 12y = 18 ------(3)

eq(2) * 7 ⇒

-14x - 35y = 112   ---(4)

eq (3) - eq(4) ⇒

-14x + 12y = 18 ------(3)

-14x - 35y = 112  ---(4)

    0   4y = -94

y = 94/(-47) = -2

Substitute the value of y in eq (2)

-2x - 5y = 16    -------(2)

-2x - 5*-2 = 16

-2x +10 = 16

-2x = 6

x = 6/-2 = -3

Therefore x = -3 and y = -2

Answer:

[tex]x=-3\\\\y=-2[/tex]

Step-by-step explanation:

Given the system of equations [tex]\left \{ {{-7x+6y=9} \atop {-2x-5y=16}} \right.[/tex], you can use the Elimination Method to solve it.

You can multiply the first equation by -2 and the second equation by 7, then add both equations and solve for the variable "y":

[tex]\left \{ {{14x-12y=-18} \atop {-14x-35y=112}} \right.\\...........................\\-47y=94\\\\y=\frac{94}{-47}\\\\y=-2[/tex]

Substitute the value of "y" into any original equations and solve for the variable "x". Then:

[tex]-7x+6y=9\\\\-7x+6(-2)=9\\\\-7x-12=9\\\\-7x=9+12\\\\x=\frac{21}{-7}\\\\x=-3[/tex]

Answer:

2x^2-x+1

Step-by-step explanation:

Answer:

2x² - x + 1

Step-by-step explanation:

[tex]\frac{(2x^{2}-x+1)(x+1)}{(x+1)} = 2x^{2}-x+1[/tex]

the answer to this is

x=9,-15

Answer:

x={9,-15}

Step-by-step explanation:

|x+3|=12 means

x+3 could be 12 or -12 since |12|=12 and |-12|=12 are true

x+3=12                              x+3=-12

x=12-3                               x=-12-3

x=9                                    x=-15

[tex]2\sqrt4=2\cdot2=4[/tex]

Answer:

4

Step-by-step explanation:

2√4 = 2√(2^2) = 2·2 = 4

__

Or, any calculator can help you with this. The Google search box serves as input to that calculator.

Answer:

t = 20.3 years

Step-by-step explanation:

I am assuming that this amount of money invested is compounding annually, so I am going to use the formula that goes along with that assumption:

[tex]A(t)=P(1+r)^t[/tex]

where A(t) is the amount at the end of compounding, P is the initial investment, r is the interest rate in decimal form, and t is the time in years.  We are solving for t.  Right now it is the exponent, but we have to get it down from that position in order to solve for it.  The only way we can do that is to eventually take the natural log of both sides.  But let's write the equation first and then do some simplifying to make things a bit easier mathematically:

[tex]19,700=5,500(1+.065)^t[/tex] and

[tex]19,700=5,500(1.065)^t[/tex]

We will divide both sides by 5,500:

[tex]3.58181818=(1.065)^t[/tex]

Taking the natural log of both sides gives us:

[tex]ln(3.58181818)=ln(1.065)^t[/tex]

The power rule for logs (both common and natural) tells us that once we take the log or ln of a base, the exponent comes down out front:

ln(3.58181818) = t ln(1.065)

Now we can divide both sides by ln(1.065) and do the math on our calculators to find that

t = 20.2600 or, to the tenth of a year,

t = 20.3 years

It will take for $5500 to grow to $19700 at a 6.5% interest rate, approximately 19.7 years for the account to reach.

The question involves calculating the amount of time it takes for an investment to grow to a certain value given a fixed annual interest rate. This is a common problem in personal finance and uses the concept of compound interest. To find the time needed for an initial investment of $5500 to grow to $19700 at an annual interest rate of 6.5%, we can use the formula for compound interest:

A = P(1 + r/n)^(nt)

Where:

A is the amount of money accumulated after n years, including interest.

P is the principal amount (the initial amount of money).

r is the annual interest rate (decimal).

n is the number of times that interest is compounded per year.

t is the time in years.

In this case, interest is compounded annually so n = 1. We rearrange the formula to solve for t:

t = log(A/P) / (n*log(1 + r/n))

Where log is the logarithm function. We substitute our known values:

t = log(19700/5500) / (1*log(1 + 0.065/1))

Calculating this gives:

t ≈ log(3.5818) / log(1.065)

t ≈ 19.7

Answer:

See below.

Step-by-step explanation:

The variable x represents the independent variable.   The dependent variable is the function g(x) . The value of g(x) depends on the value of x.

Answer:

The variable  x represents the independent variable ( C )

Step-by-step explanation

Answer:

It's the second option.

Step-by-step explanation:

You add 2 to the x coordinate and 5 to the y coordinate.

So L' =  (1 + 2, -1+5)

= (3, 4).

Answer:

L ′(3, 4), M ′(6, 2), N ′(5, 0)

Answer:

Step-by-step explanation:

outcome

Answer:

35 degrees.

Step-by-step explanation:

Triangles PDC and RDC are congruent ( By HL - The hypotenuse and one leg are equal).

Therefore m < RCD = 35 degrees.

The measure of of RCD in the figure is 35 degrees.

What is congruence?

Two figures or objects are congruent if they have the same shape and size, or if one has the same shape and size as the mirror image of the other.

In PDC and RDC,

angle DPC= angle DRC

CD=CD

PD=DR

By SAS congruence criteria,

ΔPDC ≈ ΔRDC

PCD= RCR= 35. (CPCT)

Learn more about congruence here:

https://brainly.com/question/7888063

#SPJ2

Answer:

6 inches

Step-by-step explanation:

3392.92 cubic inches of liquid distributed in 30 spheres would give each sphere's volume to be:

[tex]\frac{3392.92}{30}=113.1[/tex]

Now we equate 113.1 to the formula for volume of a sphere and solve for r:

[tex]\frac{4}{3}\pi r^3=113.1\\r^3=\frac{113.1}{\frac{4\pi}{3}}\\r^3=27\\r=\sqrt[3]{27} =3[/tex]

The radius of each of those spheres is 3

We know diameter is twice the radius , so diameter would be 3 * 2 = 6 inches

Answer:

6 inches

Step-by-step explanation:

I just took a test on Plato/Edmentum with this question and this was the right answer

~Please mark me as brainliest :)

Answer:

[tex]|RS|=3\sqrt{13}[/tex] units.

Step-by-step explanation:

The distance between the two given points [tex](x_1,y_1)[/tex] and [tex](x_2,y_2)[/tex] is given by:

[tex]d=\sqrt{(x_2-x-1)^2+(y_2-y_1)^2}[/tex]

We want to find the distance between  R(-1, 0) and S(8, 6).

We plug in these points into the distance formula to get:

[tex]|RS|=\sqrt{(8--1)^2+(6-0)^2}[/tex]

[tex]|RS|=\sqrt{(9)^2+(6)^2}[/tex]

[tex]|RS|=\sqrt{81+36}[/tex]

[tex]|RS|=\sqrt{117}[/tex]

[tex]|RS|=3\sqrt{13}[/tex] units.

Answer:

Permutations and combinations

Step-by-step explanation:

For any three songs chosen of the 8 options would use the formula of combinations of 8 taken by 3, to find which of the 3 to play first, permutation formula

Answer: 64 fluid ounces

Step-by-step explanation:

See paper attached. (:

Answer:

D. 25%

Step-by-step explanation:

f(x) = 2 * (1.25)^x

This is in the form

y = a b^x

where b is 1 plus the growth rate

b = 1.25 = 1+growth rate

1.25 = 1 + growth rate

.25 = growth rate

25% = growth rate

The answer is D) 25%

Answer:

d. (x - 5)(x - 5)

Step-by-step explanation:

x² - 10x + 25

we look for a two number when added gives you the sum -10 and when multiplied gives you the product 25

sum = - 10

product = 25

the two numbers are

-5,-5

x² - 5x - 5x + 25

(x² - 5x) (- 5x + 25)

x(x-5)-5(x-5)

(x-5)(x-5)

 Hope this helps and if it does mark as brainliest.thx

Answer:

[tex]\large\boxed{x^2-10x+25=(x-5)(x-5)}[/tex]

Step-by-step explanation:

[tex]x^2-10x+25=x^2-2(x)(5)+5^2\qquad\text{use}\ (a-b)^2=a^2-2ab+b^2\\\\=(x-5)^2=(x-5)(x-5)[/tex]

Answer:

[tex]y=500(1.05)^x[/tex]

Step-by-step explanation:

The standard form for an exponential equation is

[tex]y=a(b)^x[/tex]

We have 2 unknowns, a and b, but that's all good because we have 2 (x, y) coordinates we can utilize in order to find a and b.  In our coordinate pair, x is the number of years gone by and y is the value after that number of years.  The problem tells us that an item was purchased for $500.  That translates to "before any time has gone by, the initial value of the item is $500".  In other words, with x being time, no time has gone by, so x = 0.  When x = 0, y = 500.  (0, 500).  Do the same for the next set of numbers.  When x = 2 years gone by, the value is $551.25, so the coordinate is (2, 551.25).  Now we use them to find a.  Use the first coordinate:

[tex]500=a(b)^0[/tex]

Anything raised to the 0 power = 1, therefore:

[tex]500 = a(1)[/tex] and a = 500.

Now onto the next coordinate point using the a value we just found:

[tex]551.25 = 500(b)^2[/tex]

Divide both sides by 500 to get

[tex]1.1025=b^2[/tex]

so b = 1.05.

Now we have the values for a and b, so we fill in:

[tex]y = 500(1.05)^x[/tex]

Answer:

Option B. x In 5 = In 7

Step-by-step explanation:

we have

[tex]5^{x}+4=11[/tex]

step 1

[tex]5^{x}+4=11[/tex]

step 2

Subtract 4 both sides

[tex]5^{x}+4-4=11-4[/tex]

[tex]5^{x}=7[/tex]

step 3

Apply ln both sides

[tex]ln(5^{x})=ln(7)[/tex]

step 4

[tex]xln(5)=ln(7)[/tex]

step 5

Divide by ln(5) both sides

[tex]x=ln(7)/ln(5)[/tex]

Answer:

32

Step-by-step explanation:

Alicia needs 32 square feet of carpet to cover the space.

Area of triangular space is 1/2 * length * height.

Given, space has base length of 10 ft. and a height of 6.4 ft.

Using the formula,

Area of triangular space is 1/2 * length * height = 1/2 * 10 * 6.4

                                                                               = 32 square feet

Hence , Alicia needs 32 square feet of carpet to cover the space.

To learn more about the triangular spaces ;

https://brainly.ph/question/26974154

#SPJ2

Answer:

Step-by-step explanation:

The reference angle is π/6, and the angle is in the 4th quadrant. So, sine and tangent will be negative while cosine is positive. You have memorized the values of trig functions for π/6, so you know ...

Adjusting the signs to match those required for a 4-th quadrant angle, you have ...

Let h = number of hours the Sun was up today.

There are 24 hours in one day.

So, we are looking at the fraction h/24.

Answer: The fraction of the time the Sun was up today.

The function that multiplies the number of hours the Sun was up (h) by 60 represents the number of minutes the Sun was up today.

If h represents the number of hours the Sun was up today, to calculate the number of minutes the Sun was up, we would multiply h by 60, since there are 60 minutes in an hour. Therefore, the function that multiplies h by 60 will give us the number of minutes the Sun was up today. On the contrary, to find the number of hours the Sun was down today, we would typically take the total number of hours in a day, which is 24, and subtract h from it. To represent the fraction of the time the Sun was up today, we would use the ratio of h to 24, since there are 24 hours in a whole day. Thus, the correct quantity represented by the function when h is multiplied by 60 is the number of minutes the Sun was up today.

Answer:

  D.  to protect consumers from online fraud and theft

Step-by-step explanation:

The point of protection of personal identifying and financial data is to prevent fraud and theft.

___

The reason why hackers and malware attack banks is to get to data that would enable fraud and theft. "Good practices" prevent such data compromise, so protecting customers from fraud and theft.

Answer:

Why does the PCI require banks to protect customers’ card data?

A.  

to protect banks from hackers and malware

B.  

to help improve the cyber community

C.  

to establish good practices in the banking community

D.  

to protect consumers from online fraud and theft

Step-by-step explanation:

#platofam

Answer:

Total interest will $1800 after 5 years.

Step-by-step explanation:

It is given that the principle amount is $6000.

Rate of interest rate is 6% per annum.

Total interest is $1800.

Formula for simple interest is

[tex]I=\frac{P\times r\times t}{100}[/tex]

Where, P is principle, r is rate of interest in percent and t is time in years.

Substitute P=6000, r=6 and I=1800 in the above formula.

[tex]1800=\frac{6000\times 6\times t}{100}[/tex]

[tex]1800=\frac{36000t}{100}[/tex]

[tex]1800=360t[/tex]

Divide both sides by 360.

[tex]\frac{1800}{360}=t[/tex]

[tex]5=t[/tex]

Therefore the total interest will $1800 after 5 years.

Answer:

b.   5 years

Step-by-step explanation:

Answer:

It’s skewed left

Step-by-step explanation:

The main mass of the graph is on the left. Follow the shape of the graph to find this

To determine if a histogram is symmetric or skewed, we assess the relative positions of the mean, median, and mode. A symmetric distribution has these three values approximately equal and the histogram's halves mirror each other. A right-skewed histogram has a tail extending right, whereas a left-skewed histogram's tail extends left.

When analyzing whether a histogram is symmetric, skewed right, or skewed left, certain aspects of the distribution of data are considered. Symmetry in a histogram indicates that if a vertical line were drawn at some midpoint, the left and right sides would be mirror images. In a symmetric distribution, the mean, median, and mode are usually equivalent or very close to each other. To determine skewness, we look at the arrangement of these three measures: for a skew to the right, the mode is often less than the median, which is less than the mean. Conversely, a distribution skewed to the left typically has the mean less than the median, which is less than the mode.

A histogram for a right-skewed distribution will often show a tail extending to the right, indicating that larger numbers in the dataset are more spread out. On the other hand, a histogram with a left-skewed distribution will show a tail that extends to the left, which implies that the lower numbers are more spread out.

Answer:

(9,5)

Step-by-step explanation:

Linear combination (also known as elimination) is trying to somehow combine the equations together so that it eliminates one variable in order to solve for the other one.

So you have

-4x+9y=9

  x-3y =-6

In elimination, you want the equations to be in the same form which they are here in this case.  You want one of the columns to contain opposites or sames.

If opposites, you add the equations.

If sames, you subtract the equations.

We have neither opposites or sames in either of the first two variable columns which is where we want one of these columns to be.

So I'm going to multiply the bottom equation by 3.  This is not the only way. This is the way I'm going to do it. You could decide to multiply the bottom equation by 4 or -4 or -3 instead.  

So anyways multiply bottom equation by 3. This is what my system looks like now:

 -4x+9y=9

  3x-9y=-18

  ----------------Now we get to add this equations because the 2nd column,

                     the y column, we have opposites.

------------------------adding now

 -1x+0y=-9                  -4+3=1 and -9+9=0  and 9+-18=0      

  -x      =-9                    -1x=-1*x=-x     and 0y=0*y=0

   x      =9                       Take opposite of both sides

Now once we find one variable we must obtain the other variable by replacing x with 9 and solving for y in one of the equations (don't use both-just choose one- doesn't matter which)

x-3y=-6 was the second equation before manipulation

Plug in 9 for x

9-3y=-6

Subtract 9 on both sides

 -3y=-6-9

  -3y=-15  

Divide both sides by -3

    y=5

So the solution is (x,y)=(9,5)