9514 1404 393
Answer:
b = -5
c = -2
Step-by-step explanation:
The explicit form of a sequence with common ratio r and first term a1 is ...
an = a1(r^(n-1))
Matching the forms, we see that ...
b is the first term of the sequence: -5.
c is the common ratio: 10/-5 = -2.
In summary, ...
b = -5, c = -2
help me please consider the diagram of supplementary angles. what is the value of x
Answer:
x = 33
Step-by-step explanation:
You want to know the value of x, given that angles 104°, x°, and (x+10)° form a linear angle.
Linear angle
The measure of the linear angle is 180°. The three parts of it have that total.
104° +x° +(x+10)° = 180°
2x = 66 . . . . . . . . divide by °, subtract 114
x = 33 . . . . . . . . . divide by 2
The value of x is 33.
<95141404393>
The scatter diagram shows the scores of 10 students in their paper 1 and paper 2 Maths GCSE exams.
a. The graph shows a positive correlation.
b. Using the line of best fit, his predicted score in his second paper could have been between 60 - 65.
What is a Positive Correlation?A positive correlation is a type of correlation whereby two variables move in the same direction. That is, as one increases, the other increases also.
In a scatter plot, a positive correlation exist when both variables appear to move towards the same direction as the line of best fit slopes upwards from left to your right.
a. The scatter plot shows an upward trend on the line of best fit, therefore, the type of correlation shown by the graph is: positive correlation.
b. Using the line of best fit to make prediction, if he got 50 in his paper 1, then the score of the student in his paper 2 could have been between 60 and 65.
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The Bartolotti family took out a loan to have a garage built next to their house. The 10-year, 10.4% loan was for $56,188. The monthly payment was $475, but the promissory note stated that there was a balloon payment at the end. what is the sum of all but the last monthly payment?
If the promissory note stated that there was a balloon payment at the end. The sum of all but the last monthly payment is: $56,525, $57,000.
How to find the monthly payment?Total payment = $475 × [(10 years × 12 months) -1]
Total payment = $475 × 119 payment
Total payment = $56,525
Total payment = $475 × [(10 years × 12 months) ]
Total payment = $475 × 120 payment
Total payment = $57,000
Therefore the monthly payment is; $56,525, $57,000.
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i’m tryna finish my exit ticket asap please i don’t need no links i just need help and the answer please
Answer:
B
Step-by-step explanation:
Help pls answer all i will give the first person to get them all correct Brainliest !!!
1.) A submarine is 1/5 mile below the ocean surface. The submarine descends another 1/2 mile. What rational number represents the submarines new location after descending?
A.) - 7/10
B.) 2/7
C.) - 2/7
D.) 7/10
2.) A research team aboard an underwear vessel was 4 1/2 feet beneath the surface of the water. The vessel rose 1 2/3 feet. Which rational number represents where the vessel is currently located?
A.) -6 1/6
B.) 6 1/6
C.) -2 5/6
D.) 2 5/6
3.) Ava's Road Paving Company mixed 2 2/3 tons of cement. They used 1 1/5 tons to pave a street downtown. How much cement did they have left?
A.) 3 13/15 tons
B.) 1 7/15 tons
C.) 1 1/5 tons
D.) 1 1/2 tons
Question 1:
We are going to add.
1/5 + 1/2
2/10 + 5/10
7/10
Note that we are going DOWN so the number will be negative.
Therefore, the answer is A.) -7/10
Question 2:
We are going to subtract.
4 1/2 - 1 2/3
9/2 - 5/3
27/6 - 10/6
17/6 or 2 5/6
Note that we are still BELOW sea level so the number will be negative.
Therefore, the answer is C.) -2 5/6
Question 3:
We are going to subtract.
2 2/3 - 1 1/5
8/3 - 6/5
40/15 - 18/15
22/15 or 1 7/15
Therefore, the answer is B.) 1 7/15
Best of Luck!
can someone please help me out with this as ive tried to put everything to solve it but im still wrong.
kind regards
Franklin
1. Use Horner's algorithm to find p(4), where p(z) = 3z^2 – 7z^4 – 5z^3+z^2 -- 8z +2. 2. (Continuation) For the polynomial of preceding problem, find its expansion in a Taylor series about the point z0 = 4. 3. (Continuation) For the polynomial of Problem 3.5.1 (above), start Newton's method at the point z0 = 4. What is z1?
Evaluating p(4) using Horner's algorithm:
1. To use Horner's algorithm, we write the polynomial in nested form as follows:
p(z) = ((3z - 7)z - 5)z^2 + (z - 8)z + 2
Now, we can evaluate p(4) by starting from the inside and working our way out:
p(4) = ((3(4) - 7)4 - 5)4^2 + (4 - 8)4 + 2
= (5)4^2 - 4 + 2
= 78
Therefore, p(4) = 78.
2. Finding the Taylor series expansion of p(z) about z0 = 4:
To find the Taylor series expansion of p(z) about z0 = 4, we need to compute the derivatives of p(z) at z0 = 4. First, we compute p'(z) = 6z^2 - 28z^3 - 10z^2 + 2z - 8, then p''(z) = 12z - 84z^2 - 20z + 2, p'''(z) = 12 - 168z - 20, and so on.
Using these derivatives, we can write the Taylor series expansion of p(z) about z0 = 4 as follows:
p(z) = p(4) + p'(4)(z - 4) + p''(4)(z - 4)^2/2! + p'''(4)(z - 4)^3/3! + ...
Substituting in the values we computed, we get:
p(z) = 78 + 10(z - 4) - 41(z - 4)^2/2! - 14(z - 4)^3/3! + ...
Therefore, the Taylor series expansion of p(z) about z0 = 4 is:
p(z) = 78 + 10(z - 4) - 20.5(z - 4)^2 - 2.333(z - 4)^3 + ...
3. Using Newton's method to find a root of p(z):
To use Newton's method to find a root of p(z), we start with an initial guess z0 = 4 and iterate the formula z1 = z0 - p(z0)/p'(z0) until we reach a desired level of accuracy.
4. We already computed p'(z) in part 2, so we can use the formula to compute z1 as follows:
z1 = z0 - p(z0)/p'(z0)
= 4 - (78 + 10(4) - 20.5(4 - 4)^2 - 2.333(4 - 4)^3)/[6(4)^2 - 28(4)^3 - 10(4)^2 + 2(4) - 8]
= 3.9167
We can continue to iterate using this formula to get better approximations for the root of p(z).
Horner's algorithm is a fast and efficient way to evaluate a polynomial at a particular point. It involves using the distributive property of multiplication to rewrite a polynomial in a nested form, then evaluating the polynomial from the inside out.
In this problem, we will use Horner's algorithm to evaluate p(4) for a given polynomial, find its Taylor series expansion about the point z0 = 4, and then use Newton's method to find an approximation for a root of the polynomial.
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Properties of Parallelogram
The values of the variables are computed below
How to determine the values of the variablesFind x
This is calculated as
16x + 1 + 35 = 180 ---- sum of adjacent angles in a parallelogram
Evaluate
16x = 144
Divide
x = 9
Find x and y
This is calculated as
3x + 4 = 16
y - 60 = 56
Evaluate
3x = 12 and y = 60 + 56
So, we have
x = 4 and y = 106
Find x
This is calculated as
43x - 1 = 85 ---- opposite angles in a parallelogram
Evaluate
43x = 86
Divide
x = 2
Find m and n
This is calculated as
2n - 1 = 9
m + 8 = 3m
Evaluate
n = 5 and m = 4
Find CBE
This is calculated as
21x - 5 + 4x + 1 + 34 = 180 --- sum of angles in a triangle
Evaluate
25x = 150
So, we have
x = 7
From the figure, we have
CBE = 34 + 4x + 1
CBE = 34 + 4 * 7 + 1
CBE = 63
Find JKL
This is calculated as
10x + 14 + 50 + 36 = 180 --- sum of angles in a triangle
Evaluate
10x = 80
So, we have
x = 8
From the figure, we have
JKL = 10x + 14
JKL = 10 * 8 + 14
JKL = 94
Find x
This is calculated as
2(2x - 13) = 14
So, we have
2x - 13 = 7
This gives
2x = 20
So, we have
x = 10
Find V
This is calculated as
7x - 2 + 8x + 2 = 180 ---- sum of adjacent angles in a parallelogram
So, we have
15x = 180
This gives
x = 12
So, we have
V = 8x + 2
V = 8 * 12 + 2
V = 98
Find x and y
This is calculated as
y + 10 = 2y - 40
y = 50
Next, we have
4x + y + 10 = 180
4x + 50 + 10 = 180
Evaluate
4x = 120
So, we have
x = 30
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whats 3 Pounds for $3.99
Answer
Pounds are the currency in Europe. You would exchange 3 pounds for 3.99 American dollars
Step-by-step explanation:
In how many hours would they be 800 km apart?
*two cars a and b are having average speeds of 30 and 50 km per hours respectively leave the same point in opposite direction
pa help!!
The two cars (a and b) will be 800 km apart after 10 hours.
What is the average speed of a car?The average speed of a car is the total distance traveled by a car within a specific period of covering such distance.
From the given information:
The distance between both cars will be the hours they will meet:
i.e.
\(\mathbf{(v_a \times t)+(v_b\times t)= 800 \ km}\)
\(\mathbf{(30 \times t)+(50\times t)= 800 \ km}\)
30t + 50t = 800
80t = 800
t = 800/80 hrs
t = 10 hrs
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For a line with the equation y=2/3x−4, the slope is:
A 2
B 2/3 thirds
C 3
D -4
Answer:
The answer is B. 2/3 because y=mx+b mx us always the slope and b is the y intercept
Solve for k.
6k - 8 = 4K + 15
Hi,
Answer:
k = \(\frac{23}{2}\)
Step-by-step explanation:
Subtract 4k from both sides
6k - 4k = 2k
2k - 8 = 15
Add 8 on both sides (you want to get rid of the 8 in order to leave the k alone)
2k = 23
k = 23/2
Have a good day!
Answer:
\(k=23/2=11.5\)
Step-by-step explanation:
So we have the equation:
\(6k-8=4k+15\)
Add 8 to both sides. The left side cancels:
\(6k=4k+23\)
Subtract 4k from both sides. The right side cancels:
\(2k=23\)
Divide both sides by 2:
\(k=23/2=11.5\)
And we're done!
Linear Algebra
If A, B, and C are nxn invertible matrices, does the equation C-1(A+X)B-1=In have a solution, X? if so, find it
Yes, the equation C-1(A+X)B-1=In has a solution, X. To find the solution, first use C-1(A+X)B-1=In to simplify to C-1 AB-1=In+X. Next, use matrix multiplication to expand C-1AB-1 to In+X = AC-1B-1-B-1C-1. Subtract In from both sides of the equation to get X=AC-1B-1-B-1C-1-In. This is the solution for X, where A, B, and C are nan invertible matrices.
Given that A, B, and C are invertible nan matrices, we have to check if the equation C-1(A+X)B-1=In has a solution or not, and if there is a solution, we have to find X.
Let's solve it. Let's multiply both sides of the equation by B and C, respectively, we get C-1(A+X)B-1B = IB and C-1(A+X) = B. Now, we have to multiply both sides by C on the left, so we get C*C-1(A+X) = CB, which becomes A+X = CB.
Now we have to multiply both sides by B-1 on the right, so we get A + XBB-1 = CBB-1, which becomes A + XB-1 = CB-1.Now, we have to multiply both sides by C-1 on the left, so we get C-1A + C-1XB-1 = I.
Now, we have to multiply both sides by B and C, respectively, which results in C-1AC-1B + XC-1B = B. Finally, X = B(C-1AC-1B)B-1 - C-1B + I. We know that if A and B are matrices of the same order, then (AB)-1 = B-1A-1. By using this property, we can write the solution as X = B-1(A-1 + C-1)-1B-1 - C-1B + I. So, the solution exists for the given equation.
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Expand and simplify 2(5x + 3) - 2(2x - 3)
Answer:
6x+12
Step-by-step explanation:
2(5x+3)-2(2x-3)
(10x+6)-(4x-6)
10x+6-4x+6
6x+12
Step-by-step explanation:
1. 2(5x + 3) - 2(2x - 3)
10x + 6 - 2(2x - 3)
2. 10x + 6- 2(2x - 3)
3. 10x + 6 - 4x + 6
10x + 12 - 4x
4. 10x + 12 - 4x
6x + 12
Please help me this is probably due today
The graph of f(x) = 2(x - 3)² + 4 opens up.
The graph of f(x) = -2(x - 3)² + 4 opens down.
The graph of f(x) = 3(x - 3)² + 4 is more narrow than the graph of f(x) = (x - 3)² + 4.
The graph of f(x) = 1/3(x - 3)² + 4 is more wide than the graph of f(x) = (x - 3)² + 4.
How to evaluate the graph of each of the quadratic function?Since the leading coefficient in the given quadratic function f(x) = 2(x - 3)² + 4 is positive 2, the parabola will open upward and at the vertex (3, 4). Also, the value of the quadratic function f(x) would be minimum.
On the other hand, since the leading coefficient in the given quadratic function f(x) = -2(x - 3)² + 4 is negative 2, the parabola will open downward and at the vertex (3, 4). Also, the value of the quadratic function f(x) would be maximum.
Generally speaking, the larger the absolute value of the leading coefficient of a quadratic function, the narrower would be graph of its parabola and vice-versa.
|a| = |3| = -3
|a| = |1| = -1 ⇒ -1 > -3 (narrower).
|a| = |1/3| = -1/3
|a| = |1| = -1 ⇒ -1 < -1/3 (wider).
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if -5,3 and 5,3 are two vertices of an equilateral triangle, then find the coordinates of the third vertex, given that orgin lies inside the triangle (Take √3 = 1.7)
Therefore, The Coordinates of the THIRD VERTEX is: ( 5, -3 )
Step-by-step explanation:Calculate the midpoint of the given vertices:
MidPoint = ( -5 + 5/2, 3 + 3/2 )
MidPoint = ( 0, 3 )
Calculate the distance between the given vertices:Distance = √( -5 -5 )^2 + ( 3 - 3 )^2
Distance = √( -10 )^2 + (0)^2
Distance = √100
Distance = 10
Calculate the side length of the equilateral triangle:Side Length = 10/√3
Side Length = 10/1.7
Side Length = 5.88
Calculate the height of the Third Vertex:Height = √3/2 * Side Length
Height = 1.7/2 * 5.88
Height = 5
Calculate the Coordinates of the Third Vertex:Since the origin lies inside the triangle, The Third Vertex will have a Positive X-Coordinate and a Negative Y-Coordinate.
Now, Let the Third Vertex Be:( x, y )
Using the MidPoint Formula now we have:x = -5 + x/2
y = 3 + y/2
Solve for X and Y, we now get:x = 5
y = -3
Draw a conclusion:Hence, The Coordinate of the Third Vertex is: ( 5, -3 )
I hope this helps!
what is the value of the following expression tan (-5pi/6)
The value of the expression tan(-5π/6) can be determined using trigonometric properties and identities.
First, let's consider the unit circle. The angle -5π/6 is measured in the clockwise direction from the positive x-axis. In this position, the reference angle is π/6, which is the positive angle formed with the x-axis.
The tangent function (tan) is defined as the ratio of the sine (sin) of an angle to the cosine (cos) of the angle. Using the reference angle π/6, we can determine the value of tan(π/6) as the ratio of sin(π/6) to cos(π/6). sin(π/6) equals 1/2, and cos(π/6) equals √3/2. Therefore, tan(π/6) is (1/2) divided by (√3/2), which simplifies to 1/√3 or √3/3. Since tan is an odd function, tan(-5π/6) is equal to the negative of tan(5π/6). Therefore, tan(-5π/6) has the same value as -√3/3.
In conclusion, the value of tan(-5π/6) is -√3/3, which means that the tangent of the angle -5π/6 is negative and equal to the ratio of -√3 to 3.
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Find the linear approximation, L(x), of f(x) = sin(x) at x = pi/3.
L(x) =__________
Use the linear approximation to approximate sin(5pi/12) (Round your answer to four decimal places.)
L(5pi/12) = _______
The linear approximation of sin(5π/12) is approximately 0.9035.
How to find linear approximation?The linear approximation of f(x) = sin(x) at x = π/3 can be found using the formula:
L(x) = f(a) + f'(a)(x-a)
where a =π/3, f(a) = sin(π/3) = √(3)/2, and f'(x) = cos(x), so f'(a) = cos(π/3) = 1/2.
Plugging these values into the formula, we get:
L(x) = √(3)/2 + (1/2)(x-π/3)
L(5π/12) can be approximated using this linear approximation:
L(5π/12) = √(3)/2 + (1/2)(5π/12 - π/3) = √(3)/2 + (1/2)(π/12)
Simplifying this expression gives:
L(5π/12) = √(3)/2 + π/24 ≈ 0.9035
Therefore, the linear approximation of sin(5π/12) is approximately 0.9035.
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Find the co-interior angle measurements for the measured angle.
?
Answer:
86°
Step-by-step explanation:
As we know that when a transversal intersects two parallel line , then the sum of co-interior angles is 180° . Hence here one of the two co-interior angles is 94° and we are are interested in finding the second one . So , let the unknown angle be x , then ;
\(\implies \rm x + 94^\circ = 180^\circ \)
Subtract 94° from both sides,
\(\implies \rm x = 180^\circ -94^\circ\)
Simplify,
\(\implies \rm \underline{\underline{x = 86^\circ}}\)
Hence the required answer is 86°
Which expression is equivalent to the expression below? startfraction m 3 over m squared minus 16 endfraction divided by startfraction m squared minus 9 over m 4 endfraction startfraction 1 over (m 4) (m 3) endfraction startfraction 1 over (m minus 4) (m minus 3) endfraction startfraction m minus 4 over m minus 3 endfraction startfraction m 3 over m 4 endfraction
The equivalent expression of the product expression \(\frac{m^3}{m^2 - 16} \div \frac{m^2 - 9}{m^4}\) is \(\frac{m^7}{(m - 4)(m + 4)(m - 3)(m + 4)}\)
How to determine the equivalent expression?The expression is given as:
\(\frac{m^3}{m^2 - 16} \div \frac{m^2 - 9}{m^4}\)
Rewrite the expression as a product
\(\frac{m^3}{m^2 - 16} * \frac{m^4}{m^2 - 9}\)
Evaluate the product
\(\frac{m^7}{(m^2 - 16)(m^2 - 9)}\)
Rewrite the denominator as a difference of two squares
\(\frac{m^7}{(m - 4)(m + 4)(m - 3)(m + 4)}\)
Hence, the equivalent expression of the product expression \(\frac{m^3}{m^2 - 16} \div \frac{m^2 - 9}{m^4}\) is \(\frac{m^7}{(m - 4)(m + 4)(m - 3)(m + 4)}\)
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PLS HELPS ME!!!!!!!!!!!!
Answer:
Step-by-step explanation:
1).
(a). Yes, the graph is linear.
(b). Rate of change is a slope m, m = (60 - 80) / (10 - 0) = - 2
2). Graph is not proportional, because y-intercept is (0, 80) and not (0, 0)
Which of the following equations is true
Stevens rectangle measures 3 1/2 units by 2 1/3 units what is the area?
Qusai made a scaled copy of the following trapezoid. he used a scale factor less than 111. what could be the length of the longer base of the scaled copy of the trapezoid?
The length of the longer base of the trapezoid could be 0.75 units, \(\frac{7}{3}\) units, 4 units.
What is a trapezoid?A trapezoid, commonly referred to as a trapezium, is a quadrilateral or a polygon with four sides. It has a set of parallel opposing sides and a set of non-parallel sides. The bases and legs of the trapezoid are known as the parallel and non-parallel sides, respectively.
Given: The original length of trapezoid= 6 units
The scale factor of less than 1
So, compare the given lengths with the trapezoid longer base length,
0.75 units<6 units
\(\frac{7}{3}\) units<6 units
8.75 units< 6 units
But, 12 units> 6 units
Therefore, the length of the longer base can be 0.75, \(\frac{7}{3}\), 4 units.
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The complete question is:
“ Qusai made a scaled copy of the following trapezoid. He used a scale factor less than 1.What could be the length of the longer base of the scaled copy of the trapezoid?
Choose 3 answers:
Y’all I need help with this! Someone help me please and thank you! Can y’all like tell me the steps if possible! (Y=Mx+b)
Question:Y+2x=16
Answer:
y = -2x + 16
Step-by-step explanation:
y = mx + b
__________
y + 2x = 16
y + 2x - 2x = 16 - 2x
y = -2x + 16
Answer:
Y=-2x+16
Step-by-step explanation:
PLS GIVE BRAINLIEST
Jake noted that the speech of light is approximately 1. 1 x 10^9 kh/k the speed of sound is approximately 1. 2 x 10^3 kh/k and 11/12=0. 916
Note that the light is about 9.17 x 10³ times faster than sound. See the explanation below.
How did we arrive at the above?To arrive a the above, we only need to simplify Jakes observation as follows
\(\frac{1.1 * 10^{9} km/h }{1.2 * 10^{3}km/h }\)
dividing the coefficients
1.1/1.2 = 0.91666666666
0.91666666666 x 10 ⁹⁻³
= 9.1666667 x 10 ⁵
further simplified, we have
9.17 x 10³
Thus, we can summarize that light is about 9.17 x 10³ faster than the speed of sound going by Jake observation.
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Full Question:
Jake noted that speed of light is approximately 1.1 × 10⁹ km/h;
the speed of sound is approximately 1.2 x 10³ km/h; and
11 + 12 = 0.916.
Using Jake's figures how many times faster is light than speed?
Write your answer in standard form.
solve this plsss
carnegie plsssssssss
If you made a total of 63 posts, it takes 126 days.
What is multiplication?Multiplication is a mathematical arithmetic operation. It is also a process of adding the same types of expression for some number of times.
Example - 2 × 3 means 2 is added three times, or 3 is added 2 times.
Given:
To make a post, it takes two days.
You made a total of 63 posts.
The number of days,
= 2 x 63
= 126
Therefore, time taken is 126 days.
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The complete question:
To make a post, it takes two days.
If you made a total of 63 posts, how many days did it take?
Explain why pairwise comparison voting satisfies both majority rule and pairwise victory. (Pairwise comparison voting is sometimes called Condorcet voting, and pairwise victory is sometimes called the Condorcet criterion.)
Pairwise comparison voting, also known as Condorcet voting, satisfies both majority rule and pairwise victory (the Condorcet criterion).
1. Pairwise comparison: In pairwise comparison voting, each candidate is compared to every other candidate in a head-to-head contest. Voters rank the candidates in order of preference, and the outcomes of these individual contests are used to determine the overall winner.
2. Majority rule: Majority rule is satisfied in pairwise comparison voting because, in each head-to-head contest, the candidate who receives more than 50% of the votes is considered the winner. This ensures that the candidate with the majority of votes in each comparison is acknowledged as the preferred choice.
3. Pairwise victory (Condorcet criterion): The Condorcet criterion states that if there is a candidate who can beat every other candidate in a one-on-one contest, that candidate should be the overall winner. Pairwise comparison voting satisfies the Condorcet criterion because it directly compares each candidate against all others, ensuring that any candidate who consistently wins these head-to-head contests is recognized as the overall winner.
In conclusion, pairwise comparison voting (Condorcet voting) satisfies both majority rule and pairwise victory (the Condorcet criterion) by comparing candidates in head-to-head contests, ensuring that the candidate with the majority of votes in each contest is acknowledged as the preferred choice, and recognizing any candidate who consistently wins these head-to-head contests as the overall winner.
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*MUST ANSWER ASAPPP PLS *
Answer:
$20
Step-by-step explanation:
if you look at the lowest point in the graph and match it up with the y intercept (the cost) then the answer is $20.
pls help if you can asap!!!!
Answer: x= 6
Step-by-step explanation:
Since the shape is a parallelogram, the angles will either be equal to each other or add up to 180.
You can see they do not look the same so they add up to equal 180
12x + 3 +105 = 180
12x + 108 = 180
12x = 72
x = 6