The solutions to the system of equations are: (0, -4) and (2, -2).
To solve the system of equations using substitution:
Equation 1: x² - y = x + 4 (Equation 1)
Equation 2: x - 1 = y + 3 (Equation 2)
We can solve Equation 2 for y in terms of x and substitute it into Equation 1.
From Equation 2: x - 1 = y + 3
Rearranging this equation, we get: y = x - 1 - 3
y = x - 4
Now, substitute this expression for y in Equation 1:
x² - (x - 4) = x + 4
Simplify the equation:
x² - x + 4 = x + 4
Combine like terms:
x² - 2x = 0
Factor out an x:
x(x - 2) = 0
Now, we have two possible solutions:
1. x = 0
2. x - 2 = 0 -> x = 2
Now substitute these values of x back into Equation 2 to find the corresponding y-values:
For x = 0:
y = 0 - 4
y = -4
For x = 2:
y = 2 - 4
y = -2
Therefore, the solutions to the system of equations are:
(0, -4) and (2, -2).
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v2+4v-21=0 (solve by factoring)
Answer: (v + 7)(v -3)
Step-by-step explanation:
(v +7)(v -3)
v x v = v^2
v x -3 = -3v
7 x v = 7v
7 x -3 = -21
v^2 -3v +7v -21 = v^2 +4v -21 = 0
Answer:
The answer is (v - 3)(v + 7).
Step-by-step explanation:
First, you have to elaborate it :
v² + 4v - 21 = 0
v² - 3v + 7v - 21 = 0
Next, you have to collect like terms :
v(v - 3) + 7(v - 3) = 0
(v - 3)(v + 7) = 0
Determine whether -GH is tangent to ®F . Justify your answer.
In order to determine whether the vector -GH is tangent to the vector ®F, we need to analyze their directions and compare them.
If two vectors are tangent to each other, it means they share the same direction. In other words, they are parallel.
Let's break down the problem:
GH is a vector. Since it is denoted as -GH, we can assume that GH is a vector in the opposite direction of -GH.
®F is also a vector, but we don't have any specific information about its direction or magnitude.
Without knowing any additional details about the vectors GH and ®F, we cannot determine whether -GH is tangent to ®F. The information provided is insufficient for making a conclusive judgment.
To determine tangency or parallelism between two vectors, we would need information about their directions, magnitudes, or any other relationships that could be established between them.
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Please help I need some guidance. I am in 73/80!!!!!
Answer:
1/18
Step-by-step explanation:
1 yd = 36 in., so 3 yd = 108 in.
The scale is 6 in. to 108 in., or 6/108.
Divide the numerator and denominator by 6.
6/108 = 1/18
Answer: 1/18
Town M is 282 feet below sea level. Town R is 679 feet above sea level. How much higher, in feet is Town R than M?
Given parameters:
Elevation of Town M = 282ft
Elevation of Town R = 679ft
Unknown:
How much higher is Town R than M = ?
Solution:
Town M lies below the sea level whereas Town R is above the sea level.
Graphically:
Town R 679ft
↑
↑
↑
↑
↔↔↔ Sea level
↓
↓
Town M 282ft
Town R is 282ft + 679ft higher than Town M = 961ft
HELP!!!! ME!!!!!!!! HURRY!!!!!!!!!
Answer:
8 cm is the answer
Step-by-step explanation:
Can someone help me prove the identity?
Answer:
See Explanation
Step-by-step explanation:
\(
\because \sin\bigg(\frac{\pi}{2} + x\bigg)= \cos x\\
\&\: \sin (\pi - x) = \sin x\\\\
Now,
\frac{\sin\bigg(\frac{\pi}{2} + x\bigg)}{\sin (\pi - x)} = \cot x\\\\
LHS
= \frac{\sin\bigg(\frac{\pi}{2} + x\bigg)}{\sin (\pi - x)} \\\\
=\frac{\cos x}{sinx} \\\\
= \cot x\\\\
= RHS\\\\
Hence\: Proved
\)
Which of the following statement(s) describes the rate of change of f over the interval 1.5 SXS 3? Select all that apply.
A. The rate of change is 1/2
B. The rate of change is 2
C. The rate of change is constant
D. The rate of change is increasing
8. Solve 4(4x + 3) = 19x +9 - 3x + 3. Does the equation have one solution, no solution, or infinitely many solutions? 4(4x + 3) = 19x + 9 - 3x + 3 4. C +4. = 19x + 9 - 3x + 3 16x + 12 = + 1 16x - + 12 = 16x - + 12 12. 12 Since 12 is equal to 12, the equation has solutions
Answer
The equation has infinitely many solutions.
Since 12 is always equal to 12, the equation will have infinitely many solutions.
Explanation
4 (4x + 3) = 19x + 9 - 3x + 3
4(4x) + 4(3) = 19x + 9 - 3x + 3
16x + 12 = (19x - 3x) + (9 + 3)
16x + 12 = 16x + 12
Subtract 16x from both sides
16x - 16x + 12 = 16x - 16x + 12
12 = 12
Since 12 is always equal to 12, the equation will have infinitely many solutions.
Hope this Helps!!!
Help ASAP please
347 divided by 7 I need to find the quotient and remainder
when 347 is divided by 7 it's gives:
Quotient:
Reminder:
Answer:
quotient is 49
and remainder is
Step-by-step explanation:first step is divide 347 by the divisor 7 you will get the quotient 49 and 4will remain as remainder because t can not be divided by divisor.
There are 4 triangles and 2 circles. What is the simplest ratio of circles to triangles?
Answer:1:2
Step-by-step explanation:
it is this answer because you have 2 circles for 4 triangles, you can simplify that by dividing each number by 2 and you get 1 and 2
Answer:
1:2
Step-by-step explanation:
it would originally be 2:4 But both are divisible by 2 so they simplify down to 1:2........2÷2=1 and 4÷2=2 since the ratio has to be circles to triangle the 1 goes first then the 2
A man starts walking north at 4 ftys from a point P. Five minutes later a woman starts walking south at 5 ftys from a point 500 ft due east of P. At what rate are the people mov- ing apart 15 min after the woman starts walking
The people are moving apart at a rate of 500.02 feet per 15 minutes, which is approximately 33.34 feet per minute. Hence, the rate at which the people are moving apart 15 minutes after the woman starts walking is 33.34 feet per minute.
A man and a woman start walking in opposite directions from two different points. The man starts 4 feet north of a point P, while the woman starts 500 feet due east of P. The man started walking 5 minutes before the woman. To solve the problem, the Pythagorean theorem is used.
By applying the Pythagorean theorem, a diagram is drawn, and the following distances are assumed: The man is 4 feet away from point P, and the woman is 5 feet away from the point 500 feet east of P. The total time elapsed is 15 minutes, with the man walking for 20 minutes (since he started 5 minutes earlier than the woman).
Using the formula distance = speed x time, the distances traveled by the man and the woman are calculated. The man's speed is 4 feet per minute, and the woman's speed is 5 feet per minute. The man travels a distance of 80 feet, and the woman travels a distance of 75 feet.
Applying the Pythagorean theorem again, the distance between the man and the woman is found. It is calculated as the square root of [(500 feet)^2 + (80 feet - 75 feet)^2], resulting in a distance of 500.02 feet.
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HELP HELP HELP ME SOMEONE PLSSSSSS PLSSS
Step-by-step explanation:
For g(x) = f(x) + 5:
Because f(x) = x, this can be simplified to:
y = x + 5
For h(x) = 2 * f(x) - 3, simplified to:
2*x - 3 or 2x - 3
For j(x) = \(\frac{1}{2} * f(x) - 1\), simplified it is
\(\frac{1}{2}x - 1\)
For f(x), this can be drawn relatively easy, it is a linear line starting at the coordinates (0,5) gradually increasing by 1 in both the y and x axis. It can be drawn parallel to the line given in your question just one above.
For h(x), the line will start at (0, -3) but then have an incline of 2, i.e. the second point would be at 1, -1, and the third at (3, 3). This is because you are doubling the value of x but subtracting 3.
For j(x), x is halved so the line will be less steep although it will start at the coordinate (0, -1) because 1 is being subtracted.
Hope this helps!
Answer:
This is only for the first part. Please see the attached image for the graphs of the three given functions.
Step-by-step explanation:
1. g(x) = f(x) + 5
This involves the vertical shift of 5 units.
Start by solving for the y-intercept. The y-intercept is the value of y (or g(x) when x (or f(x) ) = 0:
Substitute f(x) with 0:
g(x) = f(x) + 5
g(x) = 0 + 5
g(x) = 5
The y-intercept is (0, 5)
According to one of the hints provided in your instruction, it states that you can use the slope to find another point.
In your given function, g(x) = f(x) + 5, the slope is 1 (it is implied, meaning, if your function is rewritten in its slope-intercept form, it is y = x + 5, in which your slope is implied as 1/1 or 1). So, to find another point, from the y-intercept (0, 5), you can go 1 unit up, and 1 unit to the right, which gives you the next point: (1, 6). Likewise, to go to the opposite direction, you can go down 1 unit, and 1 unit to the left.
2. h(x) = 2 * f(x) - 3
The slope of this function is 2, and the y-intercept is -3. If you rewrite h(x) = 2 * f(x) - 3 into its slope-intercept form, it will be: y = 2x - 3. That is why the slope (m) = 2, and the y-intercept (b) = -3.
To start, we can find the y-intercept, which is, again, the value of y (or h(x)) when f(x) = 0:
h(x) = 2 * 0 - 3
h(x) = 0 - 3
h(x) = -3
Therefore, the y-intercept is (0, -3). This can be your starting point to draw a line.
From this point, you can use the slope (2/1) to find more points by going up 2 units, and 1 unit to the right. You'll end up with the next point, (1, -1). Likewise, to go on the opposite direction, you can go 2 units down, and 1 unit to the left.
3. j(x) = ½* f(x) - 1
The slope of this function is 1/2, and the y-intercept is -1. If you rewrite j(x) = ½* f(x) - 1 into its slope-intercept form, it will be: y = 1/2x - 1. That is why the slope (m) = ½, and the y-intercept (b) = -1.
Same as the previous steps, you can start with the y-intercept by setting f(x) = 0:
j(x) = ½* f(x) - 1
j(x) = ½* 0 - 1
j(x) = 0 - 1
j(x) = - 1
Therefore, the y-intercept is (0, -1). Same as the previous functions, you can use the slope (m = ½) and start going 1 unit up, and 2 units to the right to get to the next point, (2, 0). Keep going until you have enough points to connect and draw a line with.
Please see the attached image for the graph.
PLZZZZ HELP MEEE
What is the value of x?
Enter your answer in the box.
x =
Answer:
x= 4
Step-by-step explanation:
Please see the attached pictures for the full solution.
The following spinner has four sections. There are equal sections for 1, 4, and 3. The section for 2 is twice as large as each of the other sections. 1 2 4 3
Answer:
it would be 39t for the extra 8s
Step-by-step explanation:
Find parametric equations for the path of a particle that moves along the circle
x2 + (y − 2)2 = 9
in the manner described. (Enter your answer as a comma-separated list of equations. Let x and y be in terms of t.)
(a) Once around clockwise, starting at (3, 2).
0 ≤ t ≤ 2π.
(b) Four times around counterclockwise, starting at (3, 2).
0 ≤ t ≤ 8π.
(c) Halfway around counterclockwise, starting at (0, 5).
0 ≤ t ≤ π.
To find the parametric equations for the path of a particle moving along a circle with 0 ≤ t ≤ π, we'll start by considering the equation of a circle with radius r centered at (h, k):
(x-h)² + (y-k)² = r²
Now, to create parametric equations, we'll express x and y in terms of a parameter, t. In this case, t represents the angle (in radians) that the particle has traveled along the circle.
We can use the trigonometric functions sine and cosine to do this. For a circle with radius r centered at (h, k), the parametric equations will be:
\(x(t) = h + r*cos(t)\)
\(y(t) = k + r*sin(t)\)
Since we're given a range for t (0 ≤ t ≤ π), this means that the particle moves along a semicircle, starting at the initial point (h+r, k) when t=0 and ending at the point (h-r, k) when t=π.
To summarize, the parametric equations for a particle moving along a circle with radius r and center (h, k) for 0 ≤ t ≤ π are:
\(x(t) = h + r*cos(t)\)
\(y(t) = k + r*sin(t)\)
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1/4y-3=-18 what is the y
Answer:-60
Step-by-step explanation:
Lets start by adding 3 to both sides.
\(\frac{1}{4}y-3=-18\) -->\(\frac{1}{4}y-3+3=-18+3\)-->\(\frac{1}{4}y=-15\)
\(\frac{1}{4}y=-15\)
Now that we have this, we can multiply both sides by 4, the reciprocal of 1/4.
\(\frac{1}{4}y\cdot4=-15\cdot4\)
\(y=-60\)
Answer:
y = -60
Step-by-step explanation:
1/4y-3=-18 what is the y?
1/4y - 3 = - 18
1/4y = -18 + 3
1/4y = 15
y = 15 : 1/4
y = 15 × (-4)
y = -60
---------------------------
check
1/4 × (-60) - 3 = -18
-15 - 3 = -18
-18 = -18
the answer is good
What is the area formula for a rectangle?
A: A = (1/2)bh; Area = (1/2) x base x height
B: A= (1/2)(b1 + b2)h; Area = (1/2) x (base1 + base2) x height
C: A = bh; Area base x height
D: A = a^2; Area = side x side
Find the total amount in an account to the nearest cent after 2 years if the
interest is compounded annually on an investment of $4200 at 7.75% interest.
show work if you can
Answer:
The answer would be 2000
Step-by-step explanation:
helpppppppppp meeeeeeeeeee 50points
Answer:
1) 48
2)44
Step-by-step explanation:
Answer: 48 44 Are The Correct Answers
Step-by-step explanation:Hope This Helps
if you help I will mark brainliest! Thank you
Answer: 8.94
Step-by-step explanation:
each side is the \(\sqrt{20}\) so multiply that by 2 and you will have 8.94
x³+2x²-15x, x²-7x+12 and 3x²-27 find h.c.f
Answer:
\( {x}^{3} + 2 {x}^{2} - 15x \\ x( {x}^{2} + 2x - 15) \\ x( {x}^{2} + 5x - 3x - 15) \\ x(x(x + 5) - 3(x + 5) \\ x((x + 5)(x - 3)) \\ {x}^{2} -7x + - 12 \\ {x}^{2} - 4x + 3x - 12 \\ x(x - 4) + 3(x - 4) \\ (x - 4)(x + 3) \\ 3 {x}^{2} - 27 \\ 3( {x}^{2} - 9) \\ 3((x + 3)(x - 3)) \\ \\ the \: hcf \: = (x + 3)\)
Determine the least common multiple of 16, 28, and 56.
Answer:
896
Step-by-step explanation:
The least common multiple (LCM) of 16, 28, and 56 is 896. This can be determined by listing the multiples of 16, 28, and 56 and then finding the smallest number that is a multiple of all three numbers. The multiples of 16 are 16, 32, 48, 64, 80, 96, 112, 128, 144, 160, 176, 192, 208, 224, 240, 256, 272, 288, 304, 320, 336, 352, 368, 384, 400, 416, 432, 448, 464, 480, 496, 512, 528, 544, 560, 576, 592, 608, 624, 640, 656, 672, 688, 704, 720, 736, 752, 768, 784, 800, 816, 832, 848, 864, 880, 896, etc. The multiples of 28 are 28, 56, 84, 112, 140, 168, 196, 224, 252, 280, 308, 336, 364, 392, 420, 448, 476, 504, 532, 560, 588, 616, 644, 672, 700, 728, 756, 784, 812, 840, 868, 896, etc. The multiples of 56 are 56, 112, 168, 224, 280, 336, 392, 448, 504, 560, 616, 672, 728, 784, 840, 896, etc. The smallest number that is divisible by 16, 28, and 56 is 896, so 896 is the least common multiple of 16, 28, and 56.
Austin determined that he has $13.50 in his piggy bank just in quarters and dimes. If q represents the number of quarters he has and d represents the number of dimes, which equation, written in standard form, represents this scenario? q + d = 13.50 0.10q + 0.25d = 13.50 5q + 2d = 270 2q + 5d = 270
Answer:
5q + 2d = 270
Step-by-step explanation:
right on edge .
Answer:
C:5q + 2d = 270 is your answer
Step-by-step explanation:
The product of a number and -12 is -8
which list shows fractions that always result in a terminating decimal for values of n>0
Answer:
B
Step-by-step explanation:
m
let r be the region in the first quadrant bounded by the graph of y=2tan(x5), the line y=5−x, and the y-axis. what is the volume of the solid generated when r is revolved about the line y=6
The volume of the solid is 29.865 cubic units.
We have,
To find the volume of the solid generated by revolving region R around the line y = 6, we can use the method of cylindrical shells.
The volume of the solid can be obtained by integrating the area of each cylindrical shell.
Each shell is formed by taking a thin vertical strip of width dx from region R and rotating it around the line y = 6.
Let's denote the radius of each cylindrical shell as r(x), where r(x) is the distance from the line y = 6 to the curve y = 2tan(\(x^5\)).
Since the shell is formed by revolving the strip around y = 6, the radius of the shell is given by r(x) = 6 - 2tan(\(x^5\)).
The height of each cylindrical shell is the difference in x-values between the curve y = 5 - x and the y-axis, which is given by h(x) = x.
The differential volume of each cylindrical shell is given by:
dV = 2π x r(x) x h(x) x dx.
To find the total volume of the solid, we integrate the differential volume over the interval where region R exists, which is determined by the intersection of the curves y = 2tan(\(x^5\)) and y = 5 - x.
The volume V is given by the integral:
V = ∫[a,b] 2π x (6 - 2tan(\(x^5\))) x dx
Setting the two equations equal to each other, we have:
2tan(\(x^5\)) = 5 -x
Let's use numerical approximation to find the intersection points.
Using a numerical solver, we find that one intersection point is approximately x ≈ 1.051.
Now, we can set up the integral to find the volume of the solid:
V = ∫[a,b] 2π (6 - 2tan(\(x^5\))) x dx
Since we are revolving around the line y = 6, the limits of integration will be from x = 0 to x = 1.051.
V = ∫[0,1.051] 2π (6 - 2tan(\(x^5\))) x dx
The integral does not have an elementary antiderivative, so we cannot find the exact value of the integral.
However, we can still approximate the value using numerical methods or software.
Using numerical approximation methods, the volume is approximately V ≈ 29.865 cubic units.
Thus,
The volume of the solid is 29.865 cubic units.
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What is the slope of the line ?
Answer:
The slope or gradient of a line is a number that describes both the direction and the steepness of the line.
Step-by-step explanation:
Slope is calculated by finding the ratio of the "vertical change" to the "horizontal change" between (any) two distinct points on a line.
CAN YOU ANSWER BOTH QUESTIONS PLEASEE
A circular stage has a radius of 8ft. flynn wants to paint a red line along the edge of the stage. he calculates its approximate circumference this way: 3.14(8)(8)= 3.14(64) = 200.96.(a) what error did he make in his calculation?
(b)flynn also wants to paint the the stage floor. one quart of paint covers 75 square feet of space. what is the fewest quarts of pain flynn will need?
Answer:
a) He calculated the area, not the circumference. The equation for the area of a circle is πr², while the equation for the circumference is 2πr.
b) He would need at least 3 quarts of paint. 200.96/75≈2.68 He would need that approximately 2.68 quarts of paint, but I suppose the question is asking you the least amount of whole number quarts of paint. The answer for that would then be 3.
AMOUNT ALREADY APPROVED R9 000,00 Cash already approved YOUR LOAN OFFER 1. EXPIRY DATE: 28 February 2023 . Payable over 48 months Monthly instalments = R 318,92 R 9 000,00 Calculate the TOTAL amount that Theo has to payback if s the loan. Why, do you think, do banks and other financial institutions cash loans to people that did not apply for it? Theo decides to take the loan and wants to invest the mon. he following options. Option 1: The R9 000 invested at 8% p.a. simple interest f Option 2: The R9 000 invested at 7% p.a. compound interest
The R9,000 loan offer can be analyzed as follows;
The total amount Theo pays is R15,308.16Banks offer loans as a marketing strategy and based on a customers credit profileOption 1 is the better investment as the total value of the investment after 4 years is higher than the total value of the investment in Option 2.What is a loan?A loan is a financial agreement that is made between a lender and a borrower, such that the borrower accepts a certain amount of money provided by the lender, which is to be paid back after a specified period of time, with an interest.
The total amount which has to be paid as repayment for the loan can be obtained by finding the product of the monthly installment and the total number of months to repay the loan:
Total amount Theo pays = R318.92 × 48 = R15308.16
Therefore; The amount Theo will have to pay back for the loan in 48 months is R15,308.16The reasons banks and other financial institutions offer loans to people that did not apply for loans includes;
Marketing; As a marketing, banks may offer loans to attract new customers. Pre-approved Loans; A banks may offer loans based on the credit history and financial profile of a customer.Theo's investment options can be analyzed as follows;
Option 1: Investment with simple interest calculation
Interest earned = R9,000 × 8% × 4 years = R2,880
The total value of the investment after 4 years = R9,000 + R2,880 = R11,880
Option 2: Investment with compound interest calculation
The total value of the investment after 4 years = R9,000 × (1 + 7%)⁴ = R11,797.16409
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please hellp please helllp
Answer:
a) y = \(\frac{7}{17}\)
b) x = 4
Step-by-step explanation:
a) \(\frac{3y+2}{5} =4y-1\)
3y + 2 = 20y - 5
2 = 20y - 3y - 5
2 = 17y - 5
2 + 5 = 17y
7 = 17y
y = \(\frac{7}{17}\)
b) x² + 5 = 21
x² = 21 - 5
x² = 16
x = √16
x = 4
Check the attachment... hope it helps :)
x= +4 or -4
y= 7/17