Answer:
A. The blue line represents the equation 2x-3y=6, and the solution to the system of equations is (–6, –2).
Here we have the system:
2x - 3y = -6
y = -(1/3)*x - 4
First, remember that if the slope is negative, then the equation is decreasing.
So, for the second equation, as x increases, y decreases, then the line of the second equation is the red one (because the red one decreases).
So the blue one represents the equation 2x - 3y = -6
Also remember that the solution of a system of equations is the point where the graphs of the equations intersect, here we can see that the intersection happens at the point (-6, - 2)
This means that the solution of the system is (-6, - 2)
From this, we can see that the correct option is:
A. The blue line represents the equation 2x-3y=6, and the solution to the system of equations is (–6, –2).
Step-by-step explanation:
Hope this helps:)
the answer is 90 plus 90 joke
Step-by-step explanation:
90
Find the standard form of the equation of the line through (8,-3) that is parallel to the line 3y=4x+8
The standard form of the equation of the line passing through (8,-3) that is parallel to the line 3y=4x+8 is 4x - 3y = 41
How to represent equation in standard form?The equation of the line in standard form can be represented as follows:
Ax + By = C
where
A, B and C are constantTherefore, the standard form of the equation of the line through (8,-3) that is parallel to the line 3y = 4x + 8 is a s follows;
Parallel lines have the same slope.
Hence,
3y = 4x + 8
y = 4 / 3 x + 8 / 3
The slope of the line is 4 / 3. Hence, the line passes through (8, -3). let's find the y-intercept.
y = 4 / 3 x + b
-3 = 4 / 3 (8) + b
b = -3 - 32 / 3
b = -9 - 32/ 3
b = -41 / 3
Hence,
y = 4 / 3 x - 41 / 3
multiply through by 3
3y = 4x - 41
Therefore, the standard form is 4x - 3y = 41
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Check My Work Motorola used the normal distribution to determine the probability of defects and the number of defects expected in a production process. Assume a production process produces items with a mean weight of ounces. a. The process standard deviation is , and the process control is set at plus or minus standard deviations. Units with weights less than or greater than ounces will be classified as defects. What is the probability of a defect (to 4 decimals)
Answer:
0.0026 x 1000 = 2.6
Step-by-step explanation:
Looked it up
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Answer:
∠A=120°; ∠B=20°.
Step-by-step explanation:
1) ∠A+∠B+∠C=180°;
2) 6x+x+40=180°; ⇒ x=20;
3) ∠A=6x; ⇒ ∠A=120°;
∠B=x; ⇒ ∠B=20°.
Company is preparing budgets for the quarter ending June 30, 2019.
Budgeted sales in units for the next five months are:
April 20,000
May 50,000
June 30,000
July 25,000
Required:
a. Prepare Sales budget for April, May & June assuming selling price per unit is 15.
b. Prepare production budget for April, May & June if the company wishes ending inventory as 10 % of next month sales units.
Answer:
Results are below.
Step-by-step explanation:
First, we need to determine the sales budget for April, May, and June:
Sales budget April:
Number of units sold= 20,000
Sales revenue= 20,000*15= $300,000
Sales budget May:
Number of units sold= 50,000
Sales revenue= 50,000*15= $750,000
Sales budget June:
Number of units sold= 30,000
Sales revenue= 30,000*15= $450,000
Now, the production budget using the following formula:
Production= sales + desired ending inventory - beginning inventory
Production budget April:
Sales= 20,000
Desired ending inventory= 50,000*0.1= 5,000
Beginning inventory= 0 (assuming no beginning inventory)
Production= 25,000
Production budget May:
Sales= 50,000
Desired ending inventory= 30,000*0.1= 3,000
Beginning inventory= (5,000)
Production= 48,000
Production budget June:
Sales= 30,000
Desired ending inventory= 25,000*0.1= 2,500
Beginning inventory= (3,000)
Production= 29,500
petrol and engine oil has to mix in the ratio 5 : 2 for a certain motorcycle how much engine oil is needed to mix with 10 litres of petrol
Answer:
Step-by-step explanation:
Set this up as a ratio of proportions of petrol : oil
\(\frac{p}{o}\) and if the ratio of the mix has to be 5p to 2 oil then:
\(\frac{p}{o}:\frac{5}{2}\) We need to find how much oil, x, is needed to mix with 10 liters of petrol. Completing the proportion with that ratio gives us the problem in its entirety:
\(\frac{p}{o}:\frac{5}{2}=\frac{10}{x}\) and cross multiply
5x = 20 so
x = 4 liters of oil are needed to mix with 10 liters of petrol.
Find the circumference of a circle that has a diameter of 1/6 yard. Use 22/7 for π and reduce the fraction to simplest terms.A) 11/21 yardB) 22/41 yardC) 1/2 yardD) 7/132 yard
Solution
For this case the diameter is :
d= 1/6 yd
And we want to find the circumference so we can use this formula:
\(C=2\pi r=2\cdot(\frac{22}{7})\cdot(\frac{1}{12})=\frac{11}{21}yd\)Then the best answer is:
A) 11/21 yard
write an equation of the line that passes through the points (0,-2),(3,13)
Answer: y = 5x-2
Step-by-step explanation:
Last year, Gina's sweet potato farm produced 337 tons of sweet potatoes. This year, the sweet potato production increased by 40%. How many tons of sweet potatoes did Gina's farm produce this year? 427 tons 425 tons 447 tons 445 tons
So, Gina's farm produced approximately 471.8 tons of sweet potatoes this year. Rounded to the nearest whole number, this is 472 tons.
What you mean by increasing?When we talk about an increase, we are referring to a change in quantity or value that is greater than the original amount. In other words, an increase means that something has gotten bigger, larger, or more than it was before.
Given by the question.
To find out how much sweet potatoes Gina's farm produced this year, we need to add 40% of last year's production to the amount produced last year:
40% of 337 tons = 0.4 x 337 = 134.8 tons
Adding this to last year's production gives:
337 + 134.8 = 471.8 tons
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A chicken traveled 4.5 miles in 30 minutes . A squirrel traveled 4 miles in 20 minutes . Which animal traveled at a faster rate ?
Answer:
The squirrel
Step-by-step explanation:
4.5/30 is 0.15 per minute while the squirrel is 4/20 which equals 0.2 per minute. 0.2 is greater than 0.15 making the squirrel faster. Hope this helps!
STICK EM UP! or I will have to shoot.
If tan x =
3
4
and cot y =
12
5
π
, where x and y lie in the interval of 0 to --
2
, find tan (x-y). [4]
The tangent of the subtraction of angles x and y is defined as follows:
tan(x - y) = (36 - 20π)/(48 + 15π)
How to obtain the tangent of the subtraction?The tangent of the subtraction of two angles is obtained according to the identity presented as follows:
tan(x - y) = [tan(x) - tan(y)]/[1 + tan(x)tan(y)]
The tangent of angle x is given as follows:
3/4.
The tangent and cotangent are defined as follows:
tan(x) = sin(x)/cos(x).cot(x) = cos(x)/sin(x) = 1/tan(x).Hence the tangent of angle y is obtained inverting the numerator and the denominator of the function, as follows:
tan(y) = 5π/12.
The subtraction of the two tangents is given as follows:
tan(x) - tan(y) = 3/4 - 5π/12 = 9/12 - 5π/12 = (9 - 5π)/12.
The quotient of the two tangents is given as follows:
tan(x)tan(y) = 3/4 x 5π/12 = 15π/48.
Then the denominator of the expression is given as follows:
1 + 15π/48 = (48 + 15π)/48.
Considering the division of the two fractions, the tangent of the subtraction is defined as follows:
tan(x - y) = (9 - 5π)/12 x 48/(48 + 15π)
tan(x - y) = (36 - 20π)/(48 + 15π)
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Find the value of k so that (x + 3) is a factor of H(x) = 3x^3 – 2x^2 + kx – 3.
A. 34
B. 20
C. -20
D. -34
E. 32
A system of equations and its solution are given below. System A x + 6 y = 5 3 x − 7 y = − 35 Solution: ( − 7 , 2 ) Choose the correct option that explains what steps were followed to obtain the system of equations below. System B x + 6 y = 5 − 25 y = − 50 A. To get system B, the second equation in system A was replaced by the sum of that equation and the first equation multiplied by -3. The solution to system B will be the same as the solution to system A. B. To get system B, the second equation in system A was replaced by the sum of that equation and the first equation multiplied by 3. The solution to system B will not be the same as the solution to system A. C. To get system B, the second equation in system A was replaced by the sum of that equation and the first equation multiplied by 7. The solution to system B will not be the same as the solution to system A. D. To get system B, the second equation in system A was replaced by the sum of that equation and the first equation multiplied by -5. The solution to system B will be the same as the solution to system A.
To get system B, the second equation in system A was replaced by the sum of that equation and the first equation multiplied by -3. The solution to system B will be the same as the solution to system A.
What is Linear equation ?
Linear equation can be defined as the equation in which the highest degree is one.
First equation of system A multiplied by -3:
(-3)(x+6y=5)
(-3)(x)+(-3)(6)=(-3)(5)
-3x-18=-15
Sum of the second equation of system A and the first equation multiplied by -3:
(-3x-18)+(3x-7y)=(-15)+(-35)
-3x-18+3x-7y=-15-35
-25y=-50
System B
x+6y=5
-25y=-50
Hence, To get system B, the second equation in system A was replaced by the sum of that equation and the first equation multiplied by -3. The solution to system B will be the same as the solution to system A.
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Evaluate -3x+4y when x=-7 y=-10
Answer:
-19
Step-by-step explanation:
Let Z+ denote the set of positive integers, and let x y denote that a divides y. Consider the following statements. • Statement 1: ∀x ∈ Z^+ + ∃y ∈ Z^+ s.t. x|y
• Statement 2 : ∃x ∈ Z^+ + s.t ∀y ∈ Z^+ , x|y
• Statement 3: ∃y ∈ Z^+ s.t. ∀y ∈ Z^+ , x|y
Which of these statements is true? (a) Statement 1 is true (b) Statement 2 is true (c) Statement 3 is true (d) None of these statements are true Select all possible options that apply.
Answer:
mid
Step-by-step explanation: you
Which transformation results in the function?
The transformations of f(x) are (a) a horizontal shrink by a factor of 1/4,
How to describe the transformation from the parent function?From the question, we have the following functions that can be used in our computation:
f(x) = x²
g(x) = (4x)²
Mathematically, these equations can be represented as
g(x) = f(4x)
The above equations implies that, we have the transformation to be:
The 4x implies that the function f(x) is horizontally shrunk by a factor of 1/4
Hence, the transformed function is (a)
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The graph below shows the number of houses sold over x days. What is the average rate of change from day 2 to day 10? A graph entitle House Sales shows Number of Days on the x-axis, from 0 to 12, and Number of Houses Sold on the y-axis, from 0 to 12. A line connects 5 points. The points are (0, 0), (2, 8), (6, 6), (10, 2), (12, 4). Negative four-thirds Negative three-fourths 6 8
Answer:
-3/4
Step-by-step explanation:
Answer:
-3/4 on EDG 2020
Step-by-step explanation:
Got it Right :)
Find the Unit Rate: Carrie biked 75 miles in 3 days?
Answer:
15 miles per day
Step-by-step explanation:
75 miles/3 days = 15 miles/1 day
What is the step by step process of adding and subtracting matrices
A $45 pair of shoes is on sale for 20% off. How much money is saved?
Answer:
$9
Step-by-step explanation:
Level: Standard
2) Given: -2(x - 4) = 3(x + 12); Prove: x = -5.6
Statements
Reasons
Answer:
comments r full
Step-by-step explanation:
Answer:
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Marissa decides to save AND invest for retirement. She makes an initial deposit of $2000 in her savings account which earns 1.5% annually. Her contributions are $150 a month. Then, she makes an initial deposit of $1,000 in the US stock market through an index fund contributing $300 a month with a 6.8% return annually. What is the balance of Marissa’s retirement account after 30 years?
Using compound interest formula, her balance after retirement is $430797.77
What is Marissa's BalanceTo calculate the balance of Marissa's retirement account after 30 years, we need to determine how much her savings account and index fund will be worth after 30 years, taking into account the interest earned and her monthly contributions.
First, we'll calculate the balance of her savings account:
Initial deposit: $2000
Interest rate: 1.5%
Monthly contribution: $150
Number of months: 30 years * 12 months/year = 360 months
Using the compound interest formula, the balance of her savings account after 30 years will be:
2000*(1+0.015/12)^360 + 150*(((1+0.015/12)^360-1)/(0.015/12))
A = $71280.33
Next, we'll calculate the balance of her index fund:
Initial deposit: $1000
Interest rate: 6.8%
Monthly contribution: $300
Number of months: 30 years * 12 months/year = 360 months
Using the compound interest formula, the balance of her index fund after 30 years will be:
A = 1000*(1+0.068/12)^360 + 300*(((1+0.068/12)^360-1)/(0.068/12))
A = $359517.44
Then we can add the balance of both the savings account and the stock market to get the total balance of Marissa's retirement account.
Her balance = $71280.33 + $359517.44 = $430797.77
Please note that the above answer is an estimation, in reality there are other factors such as taxes, inflation, fees, and market conditions that should be considered in a real-world scenario.
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What is the solution to this equation?
2x - X+ 9 + 3x - 2 = 16
Answer: x=9/4
Step-by-step explanation:
combine like terms then
4x+7=16
4x=9
x=9/4 or 2.25
2x -x + 9 +3x -2 = 16
COMBINE LIKE TERMS
2x- x + 3x =4x 9 -2=7
4x+7 = 16
4x +7 -7 = 16 -7
4x = 9
4x/4 = 9/4
x = 2.25 or 2 1/4
What is the product of7/16,4/3,1/2
\(\sf \dfrac{7}{24}.\)
Step-by-step explanation:1. Write the initial expression.\(\sf \dfrac{7}{16} *\dfrac{4}{3}*\dfrac{1}{2}\)
2. Rewrite the expression.When multiplying fractions, we can always just multiply all the numerators together and the denominators aswell, like this:
\(\sf \dfrac{7*4*1}{16*3*2}=\dfrac{28}{96}\)
3. Simplify.We could divide both the numerator and denominator by 4 to fully simplify this answer:
\(\sf \dfrac{28/4}{96/4}=\dfrac{7}{24}\)
Since the numerator (7) is a prime number, this fraction cannot be further simplified.
4. Final answer.\(\sf \dfrac{7}{24}.\)
PLEASE HELP ME ASAP!!!
Answer:
C) -2/3
Step-by-step explanation:
write the expression in algebraic form. [hint: sketch a right triangle, as demonstrated in example 3.] tan(arcsec(x/3))
The expression tan(arcsec(x/3)) can be written \(1/3 \sqrt{x^2-9}\) in algebraic form.
The inverse secant function, or arcsecant, is defined as the inverse of the secant function, which is the ratio of the length of the hypotenuse of a right triangle to the length of the adjacent side. Given x/3 as the length of the adjacent side, arcsec(x/3) is the measure of the angle that has a secant equal to x/3.
The tangent function is the ratio of the length of the opposite side of a right triangle to the length of the adjacent side. By substituting arcsec(x/3) as the measure of the angle in a right triangle, we can use the tangent function to find the ratio of the lengths of the opposite and adjacent sides, which is equal to \(1/3 \sqrt{x^2-9}\).
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sin(180+0).cos(180+0)/cos(180+0).sin(180-0)
Find the total in the retirement account given the following conditions:
Monthly contributions = $225
Interest rate = 4.99%
Years invested = 38
To find the total in the retirement account after 38 years of investing with monthly contributions and an interest rate of 4.99%, we can use the compound interest formula.
The formula for the future value of an investment with regular monthly contributions is given by:
FV = P * [(1 + r)^n - 1] / r
Where:
FV is the future value or the total in the retirement account.
P is the monthly contribution amount.
r is the monthly interest rate (annual interest rate divided by 12).
n is the number of monthly contributions (years invested multiplied by 12).
Let's calculate the total:
P = $225
r = 4.99% / 100 / 12 = 0.0041583 (monthly interest rate)
n = 38 * 12 = 456 (number of monthly contributions)
FV = $225 * [(1 + 0.0041583)^456 - 1] / 0.0041583
Using a financial calculator or spreadsheet, we can evaluate this expression to find the future value or total in the retirement account.
The calculated total may vary depending on the compounding frequency and rounding used.
There are 56 boys and 72 girls in an after-
school club. The club is splitting the
students in groups so that the ratio of boys
to girls is the same as the ratio of boys to
girls in the club. How many girls are in a
group with 7 boys?
Answer:
I’m not sure but maybe 8?
Step-by-step explanation:
Answer:2?
Step-by-step explanation:
Regs.
Spinner A and Spinner B below are each to be spun once.
0 18
O 12
6
Spinner A
5
2
4
00
D
3
20 of 21
If the pointer cannot land on a line, how many different outcomes of a number and a color are possible?
v
Spinner B
Yellow
Brown
12 13
Red
Answer:
Step-by-step explanation:
Regs.
Spinner A and Spinner B below are each to be spun once.
0 18
O 12
6
Spinner A
5
2
4
00