The value of the iterated integral after converting it to polar coordinates and solving it is 2.
What is integral ?
An integral in mathematics is either a numerical value equal to the area under the graph of a function for some interval or a new function, the derivative of which is the original function (indefinite integral).
The integral becomes ,
∫∫_D rdrdθ where D is the region in the polar coordinates.
The region D is defined by the constraints ,
0 <= r <= 2cos(θ) and 0 <= θ <= pi/4
So, the integral is ∫^(pi/4)_0∫^(2cos(θ))_0 rdrdθ = (1/2) ∫^(pi/4)_0 (2cos(θ))^2 dθ = (1/2) ∫^(pi/4)_0 4cos^2(θ) dθ
Now we can solve the integral by integration by parts,
u = 4cos^2(θ)
du/dθ = -8sin(θ)cos(θ)
dv/dθ = 1
v = θ
∫^(pi/4)_0 4cos^2(θ) dθ = [4cos^2(θ)θ]^(pi/4)_0 - ∫^(pi/4)_0 -8sin(θ)cos(θ)θ dθ
The value of the iterated integral after converting it to polar coordinates and solving it is 2.
To learn more about integral visit : brainly.com/question/18125359
#SPJ4
Over what interval(s) is the function strictly linear?
(A) -2 < x < 2
(B) -2 < x < 0 and 2 < x < 4
(C) 0 < x < 2
(D) 0 < x < 2 and 2 < x < 4
Th equation is linear at -2 < x < 0 and 2 < x < 4.
What is linear equation?A linear equation is one that has a degree of 1 as its maximum value. No variable in a linear equation, thus, has an exponent greater than 1. A linear equation's graph will always be a straight line.
Each term in a linear equation has an exponent of 1, and when this algebraic equation is graphed, it always produces a straight line. Because of this, it is referred to as a "linear equation."
Given graph,
to find the intervals where function is linear,
for linearity ,
Linearity is the property of a mathematical relationship (function) that can be graphically represented as a straight line. Proportionality and linearity are closely linked concepts.
from graph we find that the intervals at which the function is linear are,
(-2, 0) (0, 2) and (2, -2) (4, 2)
te coordinates of x are
-2 and 0, 2 and 4
-2 < x < 0 and 2 < x < 4
Hence the interval is the function strictly linear are,
-2 < x < 0 and 2 < x < 4
Learn more about linear equation;
https://brainly.com/question/29739212
#SPJ1
I've given up on math. I hate it.
The linear equation representing the data in the table is y = x - 3, therefore;
The slope, m = 1
The y-intercept, c = -3
A linear equation is an equation of the form y = m·x + c, in which the highest index of the variables is 1, and the graph of the ordered pairs obtained using the equation is a straight line.
The first difference of the y-variable is constant and each next value the x-variable increases by 1, therefore, the relationship is a linear relationship.
The slope, m, is therefore;
m = (-3 - (-4))/(0 - (-1)) = 1
The slope of the graph of the data, m = 1The equation of the line that represents the graph of the data in the table using the point (3, 0) is therefore;
y - (0) = 1·(x - 3) = x - 3
Therefore; y = x - 3
The above equation is in the slope-intercept form, y = m·x + c, with the slope, m = 1, and the y-intercept, c = -3
The y-intercept of the data in the table therefore is -3Learn more about the slope-intercept form of a linear equation here:
https://brainly.com/question/11242500
#SPJ1
The blue dot is at what value on the number line?
Based on the number line provided, it can be concluded the blue dot is equivalent to 0.
What is a number line?This is a horizontal line with values or numbers on it. Number lines are different from just any other line because the numbers on them follow a sequence and at placed at defined intervals. Most number lines include the number 0,1,2,3, but the sequence might be different.
What value does the blue dot represent?Based on the values provided, it can be concluded the sequence is -10,-6,-8, etc. and this would make the blue dot to be 0.
Note: This question is incomplete, below I attach the missing information.
Learn more about number lines in https://brainly.com/question/13425491
#SPJ1
The treasurer of the student body at a college reported that the receipts from a recent concert totaled $916. Furthermore, he announced that 560 people had attended the concert. Students were charged $1.25 each for admission to the concert, and adults were charged $2.25 each. Solve the systems of equations.
Answer:
300 student tickets and 260 adult tickets.
Step-by-step explanation:
x=number of student tickets, y=number of adult tickets.
1.25x+2.25y=916; x+y=560. x=300; y=260.
Select all that are equal to 5^3* 5^-7
Write the equation tor the parent linear value function, f(x)=x, that has been transformed by:
a. reflecting across the -axis, vertical stretch by a scale factor 4, and a translation of 4 units up amd 5 units left
b. vertical shrink by a scale factor of 14 and a horizonta shift O units right.
c. reflection in the x-axis, a vertical shift of 4 units up and a horizontal shift 7 units left
The required functions after transformations are y = -4(x+4)+5, y = (x-o)/14, y = -x+4
What is transformation?A transformation is a process that manipulates a polygon or other two-dimensional object on a plane or coordinate system.
Given that, the equation for the parent linear value function, f(x)=x, that has been transformed by,
a) Reflecting across the -axis, vertical stretch by a scale factor 4, and a translation of 4 units up and 5 units left :-
Rule for reflection across x-axis = y = f(x) → y = -f(x)
After reflection,
f(x) = -x
And there is a vertical stretch by a scale factor 4, and a translation of 4 units up and 5 units left
f(x) = -4(x+4)+5
Therefore, the function will be f(x) = -4(x+4)+5
b) Vertical shrink by a scale factor of 14 and a horizontal shift O units right.
For vertical shrink = f(x)/14 = x/14
For horizontal shift = (x-o)/14
Therefore, the function will be f(x) = (x-o)/14
c) Reflection in the x-axis, a vertical shift of 4 units up and a horizontal shift 7 units left.
Rule for reflection across x-axis = y = f(x) → y = -f(x)
f(x) = -x
For a vertical shift of 4 units up and a horizontal shift 7 units left =
f(x) = (-x-7)+4
Hence, The required functions after transformations are y = -4(x+4)+5, y = (x-o)/14, y = -x+4
For more references on transformations. click;
https://brainly.com/question/11709244
#SPJ1
25 points !! Select the correct answer. Given: AD || BC Prove: DC = 6 units
Answer:
c
Step-by-step explanation:
I need help again lol please help
The area of the triangle is 120 cm².
What is a triangle?
A polygon with three edges and three vertices is called a triangle. It is one of the fundamental geometric shapes. Triangle ABC is the designation for a triangle with vertices A, B, and C. In Euclidean geometry, any three points that are not collinear produce a distinct triangle and a distinct plane.
Given that the base of the triangle is 12 cm and the hypotenuse is 32 cm.
The height of the triangle is 8 more than the base.
The height of the triangle is (12 + 8) = 20 cm.
The area of a triangle is 1/2 × base × height.
The area of the triangle is 1/2 × 12 × 20
= 12 × 10
= 120cm²
To learn more about area of a triangle, click on the below link:
https://brainly.com/question/29026520
#SPJ1
find the curl of the vector field f. f(x, y, z) = (6y − z)i + ezj + xyzk
What is the volume of the figure?
Step-by-step explanation:
The volume of rectangular prism is calculated with the following formula:
V = w×l×h (w: width, l: length, h: height)
The lengths for the figure is given so we can write the following equation and find the volume:
7×5×3 = 105 ft³
Solve the following inequality using both the graphical and algebraic approach: 5 minus x less-than 2 (x minus 3) + 5 Graph A On a coordinate plane, a line goes through (0, 5) and (5, 0). Another line goes through (negative 2, negative 4) and (2, 3). The lines intersect at (2, 3). Graph B On a coordinate plane, a line goes through (0, 0) and (2, negative 6). Another line goes through (0, negative 8) and (2, negative 6). a. x less-than 2 Graph A b. x greater-than 2 Graph A c. x less-than 2 Graph B d. x greater-than 2 Graph B Please select the best answer from the choices provided A B C D
The solution to the inequality in this problem is given as follows:
d. x > 2.
The graphical solution to the inequality is given by the image shown at the end of the answer.
How to solve the inequality?The inequality for this problem is defined as follows:
5 - x < 2(x - 3) + 5.
Applying the distributive property, we have that:
5 - x < 2x - 6 + 5
5 - x < 2x - 1.
Hence the solution set is composed by the region in which the line 2x - 1 is greater than the line 5 - x.
The numerical solution set is obtained as follows:
5 - x < 2x - 1.
-3x < -6
3x > 6. (the leading coefficient is negative, hence the multiplication by -1 also changes the sign).
x > 6/3
x > 2.
Meaning that option d is correct.
More can be learned about inequalities at https://brainly.com/question/9290436
#SPJ1
Which is the correct order of the steps in bisecting a line segment?
The order of the steps for the bisection of line segment AB will be D, E, B, C, and A.
The first thing we do for bisecting any line segment is to take up a distance of more than the approximate half of the line segment and place the compass on either point of the line.
Hence the first point will be D. Place the compass on point A and open it wider than half the distance of the segment.
Since an arc on both sides of the segment has to be drawn, the next point will be E. Swing an arc above and below the segment.
Since the same thing has to be repeated for the other point, the next point will be B. Keeping the compass the same width, place the compass on point B, and swing an arc above and below the segment.
Now we have got 2 points above and below the line segment, the next point has to be C. Place points C and D on the intersection of the arcs created above and below segment AB.
The line intersecting these points and AB has to be the point that divides AB in half, and the last point will be A. Draw a line from point C to point D.
To learn more about Construction visit
https://brainly.com/question/24462309
#SPJ4
Complete Question
What is the correct order of steps for bisecting segment AB?
A. Draw a line from point C to point D.
B. Keeping the compass the same width, place the compass on point B, and swing an arc above and below the segment.
C. Place points C and D on the intersection of the arcs created above and below segment AB.
D. Place the compass on point A, and open it wider than half the distance of the segment.
E. Swing an arc above and below the segment.
What are the 4 rules of congruence?
The 4 rules of Congruence that are used in proving two triangles congruent are (SSS) Side - Side - Side , (SAS) Side - Angle - Side , (ASA) Angle - Side - Angle and (RHS) Right Angle - Hypotnuse - Side .
The Two Triangles are called Congruent if their sides have same length and angles have same measure.
The Four rules by which we can prove 2 triangles as congruent are :
(i) (SSS) Side - Side - Side ,
The 2 triangles are said to be congruent by SSS rule. If all 3 sides of one triangle are equivalent to the corresponding 3 sides of second triangle .
(ii) (SAS) Side - Angle - Side ,
The 2 triangles are said to be congruent by SAS rule if , any 2 sides and the angle included between sides of one triangle is equivalent to corresponding 2 sides and the angle between sides of second triangle .
(iii) (ASA) Angle - Side - Angle ,
The 2 triangles are said to be congruent by SAS rule if any 2 angles and the side included between angles of one triangle is equivalent to corresponding 2 angles and side included between angles of second triangle .
(iv) (RHS) Right Angle - Hypotnuse - Side ,
The 2 triangles are said to be congruent by SAS rule if , hypotenuse and a side of a right- angled triangle is equivalent to hypotenuse and side of second right- angled triangle .
Learn more about Congruence here
https://brainly.com/question/29548914
#SPJ4
The 4 rules of congruence
SSS (Side-Side-Side)
SAS (Side-Angle-Side)
ASA (Angle-Side-Angle)
AAS (Angle-Angle-Side)
SSS (Side-Side-Side) The two triangles are said to be congruent if the three sides of one triangle are equivalent to the corresponding three sides of the second triangle.
According to the SAS (Side-Angle-Side) rule, two triangles are said to be congruent if any two sides and any angle included between the sides of one triangle are comparable to the corresponding two sides and any angle included between the sides of the second triangle.
The two triangles are said to be congruent by the ASA (Angle-Side-Angle) rule if any two angles and the side included between the angles of one triangle are comparable to the corresponding two angles and side included between the angles of the second triangle.
AAS (Angle-Angle-Side) (Angle-Angle-Side)
Angle-Angle-Side is abbreviated as AAS. The triangles are said to be congruent when two angles and a non-included side of one triangle match the corresponding angles and sides of another triangle.
Learn more about Congruence here
brainly.com/question/29548914
#SPJ4
For a lower tail test, the test statistic z is determined to be zero. The p-value for this test is
a +.5.
b -.5.
c zero.
d 1.
The p-value for a lower tail test with a test statistic z of zero is 1, meaning that the probability of obtaining a result at least as extreme is 100%.
The lower tail test is a type of hypothesis test used to determine if a sample of data comes from a population with a certain mean or below. The test statistic z is used to calculate the p-value of the test, which is the probability of obtaining a result at least as extreme as the one observed. In this case, the test statistic z is zero, so the p-value of the test is 1, meaning that the probability of obtaining a result at least as extreme is 100%. To calculate this, the z-score is determined by subtracting the mean of the population from the sample mean and dividing by the standard deviation of the population. Then, the cumulative probability is calculated by finding the area under the normal distriabution curve from negative infinity to the z-score obtained from the calculation. The p-value is then equal to the cumulative probability. In this case, the p-value is 1 since the z-score is zero.
Learn more about probability here
https://brainly.com/question/11234923
#SPJ4
How many times smaller is 1.2 × 106 than 1.47 × 107? 0.82 1.35 2.67 12.25
1.25 times 1.2×106 is smaller than the 1.47×107. Therefore, the correct answer is option D.
Given that, 1.2×106 and 1.47×107.
Multiplication is an operation that represents the basic idea of repeated addition of the same number. The numbers that are multiplied are called the factors and the result that is obtained after the multiplication of two or more numbers is known as the product of those numbers.
Here,
1.2×106 = 127.2
1.47×107 = 157.29
Now, [tex]\frac{157.29}{127.2}[/tex]
= 1.25
Therefore, the correct answer is option D.
Learn more about the multiplication here:
https://brainly.com/question/1562995.
#SPJ4
If the sum of the zeroes of the quadratic polynomial kx 2 3 x k 2 + + is equal to their product, then k equals
If the sum of two numbers is 6 and the difference is 2 what are the two numbers
Answer: 4 and 2
Step-by-step explanation:
4+2=6
4-2=2
Answer:
4 and 2
Step-by-step explanation:
4+2=6
4-2=2
6-2=4
You can exchange 10 euro (€10) for 210 peso.
How many pesos will you get in exchange for 1 euro (€1)?
Write down a function to show the relationship between y pesos and x euros.
Answer:
Step-by-step explanation:
As stated in the question,
let's number of euros be x and number of pesos be y
So,
10x =210y
x=21y
x - 21y =0 (Functional relationship between x euros and y pesos)
A cinder block is in the shape of a rectangular prism. the cinder block has two holes shaped like rectangular prisms that are the same size and pass completely through it. what is the volume of the cinder block?
The volume of the cinder block can be calculated as follows: L x W x H) - 2(l x w x h)
To find the volume of the cinder block, you need to know the dimensions of the block and the dimensions of the holes. The volume of a rectangular prism is calculated by multiplying the length, width, and height. If the dimensions of the cinder block are L x W x H, and the dimensions of the holes are l x w x h, the volume of the cinder block can be calculated as follows:
Volume of cinder block = (L x W x H) - 2(l x w x h)
You can use this formula to calculate the volume of the cinder block once you know the dimensions of the block and the holes.
To learn more about the volume, visit:
brainly.com/question/1578538
#SPJ4
The volume of the cinder block is 624 cu.in.
Consider the following diagram.
We know the formula for the volume of rectangular prism:
V = length × width × height
First we find the volume of the outer rectangular prism.
Let V1 be the volume of outer rectangular prism.
Let l1 be the length, w1 be the width and h1 be the height of the outer rectangular prism.
l1 = 16 in, w1 = 8 in and h1 = 8 in
So, V1 = l1 × w1 × h1
V1 = 16 × 8 × 8
V1 = 1024 cu. in.
The cinder block has two holes shaped like rectangular prisms.
Let V2 be the volume of one hole.
Let l2 be the length, w2 be the width and h2 be the height of one of the hole.
Dimensions of the hole: l2 = 8 in., w2 = 5 in. and h2 = 5 in.
So, V2 = l2 × w2× h2
V2 = 8 × 5 × 5
V2 = 200 cu.in.
The volume of the cinder block would be,
V = V1 - (2 × V2)
V = 1024 - (2 × 200)
V = 1024 - 400
V = 624 cu. in.
Therefore, the required volume is 624 cu³
Learn more about the volume of rectngular prism here:
https://brainly.com/question/21308855
#SPJ4
Solve 5x + 3 = 10 in order
Answer:
x = 10-3y whole divided by 5
Step-by-step explanation:
- divide by 3
-subtract 5x
-simplify - y=-5/3x+10/3
hope it helps i think its wrong tho
Answer:
5x + 3y = 10
Subtract 5x from both sides
Divide everything by 3
y = [tex]\frac{-5}{3}[/tex] x + [tex]\frac{10}{3}[/tex]
Step-by-step explanation:
5x + 3y = 10 Given
5x + 3y = 10 Subtract 5x from both sides
5x - 5x + 3y = -5x + 10
3y = -5x + 10 Divide everything by 3
[tex]\frac{3y }{3}[/tex] = [tex]\frac{-5}{3}[/tex] x + [tex]\frac{10}{3}[/tex]
y = [tex]\frac{-5}{3}[/tex] x + [tex]\frac{10}{3}[/tex]
Solve for the system of equations.
x + 2y = 10
2x + 20 = y
Answer:
X = -6, y = 8.
Step-by-step explanation:
Rearrange the second equation to the form ax + by = c
x + 2y = 10
2x - y = -20
Multiply equation 1 by -2
-2x - 4y = -20
Adding this to the second equation
-5y = -40
Y = 8.
Now substitute x = 8 into equation 1
X + 2(8) = 10
X = -6.
The polynomial (x – 2)(x2 + 1) – x(x – 3) can be written in the form: ax3 + bx2 + cx + d where a, b, c, and d are constants. What are the values of a, b, c, and d? Show your work.
The values of the constants in the polynomial are a = 1, b = 0, c = 1 and d = -2
How to find the values of a, b, c, and d?A polynomial is a mathematical expression involving a sum of powers in one or more variables, with coefficients that are real numbers.
The variables in a polynomial are typically represented by letters such as x and y, and the powers of the variables are represented by whole numbers.
We have polynomial (x – 2)(x² + 1) – x(x – 3), in order to write it in the form ax³ + bx² + cx + d, we need to expand the expression. That is:
(x – 2)(x² + 1) – x(x – 3) = (x² – 2)(x + 1) – x(x – 3)
= x²(x + 1) – 2(x + 1) – x(x – 3)
= x³ + x² – 2x -2 – x² + 3x
= x³ + x - 2
Thus, the values of a, b, c, and d are a = 1, b = 0, c = 1 and d = -2
Learn more about polynomials on:
https://brainly.com/question/4142886
#SPJ1
B is between A and C.
AB=50 BC=3x AC=6x−25
Find the value of x.
25
65
20
45
The value of x if the point B is between the points A and C is (a) 25
How to determine the value of xFrom the question, we have the following parameters that can be used in our computation:
B is between A and C.
Also from the question, we have the following parameters:
AB = 50
BC = 3x
AC = 6x−25
The statement "B is between A and C" implies that
AC = AB + BC
Substitute the known values in the above equation, so, we have the following representation
50 + 3x = 6x - 25
Evaluate the like terms
3x = 75
Divide both sides by 3
x = 25
Hence, the solution of x is 25
Read more about line segments at
https://brainly.com/question/17374569
#SPJ1
What is SSS similarity theorem examples?
The examples of SSS similarity theorem (i.e If all the three sides of a triangle are in proportion to the three sides of another one) are ∆ABC is similar ∆DEF and one large triangle is similar to smaller one as seen in above figure.
SSS Triangle Similarity Examples : 1) How can you use the SSS similarity criterion to show that the following triangles are similar?
Only non-zero angles are specified. SSA is not a measure of triangle similarity, so we cannot say that these triangles are similar by SSA. However, since they are right triangles, you can use the Pythagorean theorem to find the third side of any triangle.
for large triangle 36² + x² = 45²=> x² = 45² - 36² = 2025 - 1296 = 729
=> x = √729 = 27
for small triangle 12² + x² = 15²=> x² = 15² - 12² = 225 - 144 = 81
=> x =√81 = 9
All three pairs of sides are proportional in ratio 3. Therefore, triangles are more similar to SSS~.
2) Are the triangles (that is, ΔABC and ΔDEF) similar?
All triangles have the same three sides. The ratio between each pair of sides is 4x/x = 4. The triangles through SSS~ are similar because the three pairs of sides are proportional.
To learn more about SSS similarity theorem, refer:
https://brainly.com/question/4163594
#SPJ4
which theorem proves congruency. Determine which postulate can be used to pro valid congruency statement. Color the picture according А. B D F X E с ASA AAS SAS 6 4 11 CDE AFDE ADECEAEDF AECD = ADFE Gray Yellow Light Blue
By applying the congruency of triangles, it can be concluded that ΔCDE ≅ ΔFDE by AAS theorem
Two triangles are said to be congruent if all three corresponding sides are equal and all three corresponding angles are equal in measure. The symbol of congruence is ≅.
There are some postulates used to prove congruency:
Angle-Side-Angle (ASA): two triangles are said to be congruent if any two angles and the side included between the angles of one triangle are equivalent to the corresponding two angles and the side included between the angles of the second triangleAngle-Angle-Side (AAS): two triangles are said to be congruent if two angles and a non-included side of a triangle are equal to the corresponding angles and sides of another triangleSide-Angle-Side (SAS): two triangles are said to be congruent if any two sides and the angle included between the sides of one triangle are equivalent to the corresponding two sides and the angle between the sides of the second triangleSide-Side-Side (SSS): two triangles are said to be congruent if all three sides of one triangle are equivalent to the corresponding three sides of the second triangleNow we take a look at the given picture, the take some notes:
∠C = ∠F ----> corresponding angles
∠DEC = ∠DEF ----> corresponding angles
DE = DE ----> adjacent sides
Thus ΔCDE ≅ ΔFDE by AAS postulate
To learn more about congruent triangles, click here: https://brainly.com/question/7888063
#SPJ4
Jahquil makes $35 an hour working as an accounting assistant she works 40 hours each month Jahquil will have made after she worked seven months
Answer: 9,800
Step-by-step explanation: $35 X 40h (hours) = $1,400 x 7m (months) = 9,800
The scatterplot below shows the relationship between the temperature, in degrees Fahrenheit, at a football game and the number of cups of hot chocolate sold during the game. Number of Cups Sold Hot Chocolate Sales 160 140 120 100 80 60 40 20 0 30 ● 40 50 Temperature (F) -70 80 Which of the following graphs best represents the line of best fit for this data? Tim Atter
The graph that best represents the line of best fit for this data is given below.
What is the line of best fit?A straight line that minimizes the gap between it and certain data is called a line of best fit. In a scatter plot containing several data points, a relationship is expressed using the line of best fit. It is a result of regression analysis and a tool for forecasting indicators and price changes.
Given:
The scatter plot below shows the relationship between the temperature, in degrees Fahrenheit, at a football game and the number of cups of hot chocolate sold during the game.
The table for calculation and plot are given in the attached image.
The line of the best fit for the scatter plot is ŷ = -14.15584X + 1144.93506
Therefore, the line of the best fit is ŷ = -14.15584X + 1144.93506.
To learn more about the line of the best fit;
https://brainly.com/question/14279419
#SPJ1
NEED HELP FAST AND PLEASE
What process could you use to solve equations of the form (x + a)(x + b) = 0? In this case there are only two factors (values being multiplied) that are being set equal to 0. How would you solve the equation if there were more than two factors? Explain.
Answer:
Step-by-step explanation:
(x + a) * (x + b) = 0?
The ONLY way that two things can multiply together to give zero is if ONE or BOTH of them IS ZERO.
so,
x+a=0 or x+b=0
(0 + a) * (a+ b) = 0 or (x + a) * (0+ b) = 0 or (0+ a) * (0+ b) = 0
A value of a share of the stock rose $2.35 and then dropped $3.25 before finishing the day at $64.35. What was the original value of the stock per share?
Answer: $65.25
Step-by-step explanation: First you do inverse operation which would be 64.35+3.25 and you would get 67.60 then you subtract 2.35 to get $65.25
65.25+2.35=$67.60
$67.60-3.25=$64.35
What are the values of x and y*
Based on the given triangles, x is 9/4 and y is 15/4 (B).
To anwer this question, we need to understand that we have 3 different triangles in one picture:
ΔABCΔABDΔBCDFirst, we will focus on the biggest triangle ΔABC. We have 3 sides:
AB = 5BC = yAC = (4 + x)Using the phytagoras theorem, we can get the equation of:
AC² = AB² + BC²
(4 + x)² = 5² + y²
16 + 8x + x² = 25 + y² ... (i)
Next, we will focus on the third triangle, BCD. We have 3 different sides:
BC = yCD = xBD = 3Using the phytagoras theorem, we can get the second equation:
BC² = CD² + BD²
y² = x² + 3²
y² = 9 + x² ... (ii)
We can subtitute the equation (ii) into equation (i) to eliminate y:
16 + 8x + x² = 25 + y²
16 + 8x + x² = 25 + (9 + x²)
16 + 8x + x² = 34 + x²
16 + 8x = 34
8x = 18
x = 9/4 ... (iii)
By subtitute the equation (iii) into equation (ii), we can get the value of y:
y² = 9 + x²
y² = 9 + (9/4)²
y² = 9 + (81/16)
y² = 144 + 81
16
y² = 225/16
y = 15/4
Learn more about Triangle here: brainly.com/question/2773823
#SPJ1