Use the elimination method to solve the system
5x − 14y = 74
−x − 6y = 38
Garrett has deposited $519 in a savings account that earns interest at a rate of 4.2% compounded daily. What will the account balance be in 17 years?
Enter the correct unit of measurement to complete the conversion
10,000 grams equals 10 what
1/5000,000 liter eqaul 2 what
1 nanosecond equal one what of a what
1 hectometer equal what meters
1 milliampere equl one waht of an ampere
1 megaton equal 1 what tons
THANK YOU SO MUCH
Answer:
As per list given
Step-by-step explanation:
Given are some measurements and we have to convert them into suitable units.
i) 10,000 grams = 10 kilograms
1/500,000 liters equal = 2 microliters
1 nanosecond = 1 billionth of a second
1 hectometer = 100 meters
1 milliampere = 0.001 ampere
1 megaton = 1,000,000 tons
Kyra typed 140 words in 5 minuets. Then, she typed 196 words in 7 minutes. Was her rate of words per minute constant? If so, what is the constant of proportionality?
The circular base of a cone has a radius of 5 centimeters. The height of the cone is 12 centimeters, and the slant height is 13 centimeters. What is the approximate surface area of the cone? Use 3.14 for π and round to the nearest whole number. 267 cm2 283 cm2 456 cm2 487 cm2
Answer:
Option B. is the correct option.
Step-by-step explanation:
The circular base of a cone has a radius of 5 cm. The height of the cone is 12 cm. Slant height of the cone is 13 cm.
We have to calculate the approximate surface area of the cone.
Since we know Surface area of a cone = Area of circular base + lateral area of the cone
Now Surface area of a cone = πr² + πrl = πr(r + l)
By putting the values of the dimensions of a cone in the formula.
S.A. = π (5² + 5×13) = 3.14×(25 + 65) = 3.14×(90) = 282.60 ≈ 283 cm²
Therefore, Option B is the correct option.
Evaluate the integral f*dr where f(x,y)=<-y,x^2> and c consists of te arc of the parabola y=2x^2 from (-1,2) to (1,2)
write words to match the expression
3+(4×12)
At the city park there were 15 blue jays, 6 cardinals, and 9 mockingbirds. For each of the following questions set up a proportion equation and solve for the unknown. 1. If there were 6 mockingbirds, how many cardinals would there be at the park? 2. If there were 5 blue jays, how many cardinals would there be at the park? 3. If there were 20 cardinals, how many mockingbirds would there be at the park?
Simplify 7x+3y-2+6x-1-y^2
What is 2 tens 13 ones
Simplify. Assume that all variables represent positive real numbers. sqrt y^9
a 204 inch board is cut into two pieces. one piece is five times the length of the other.find the lengths of the two pieces
Object moving in the xy-plane is acted on by a conservative force described by the potential-energy function u(x,y)=α(1/x2+1/y2), where α is a positive constant
It seems like the problem is asking for us to derive an expression for the force F⃗ stated in terms of the unit vectors i^ and j^.
The solution for this is:
U(x,y) = α (x^-2 + y^-2)
F = - dU(x,y)
F = - (dU/dx + dU/dy)
F = - (-2αx^-3 - 2αy^-3)
F = 2α (x^-3 + y^-3)
F = 2α (1/x^3 i + 1/y^3 j)
A conservative force is related to the potential-energy function. In this particular context, the force exerted on an object in an xy-plane is calculated using the negative gradient of the potential energy function u(x,y) given.
Explanation:The question presents a potential-energy function for an object moving in the xy-plane, with the function u(x,y)=α(1/x2+1/y2) where α is a positive constant. This case refers to the action of a conservative force.
A conservative force is characterized by the fact that the work done by the force is only dependent on the start and end points of the motion. In turn, this gives the freedom to define a potential energy for any conservative force. In the context of this potential-energy function, the conservative force acting on the object can be calculated from the negative gradient of the potential energy.
To express it quantitatively, given a potential energy function U(x), the force F acting on the object at a position x is given by F=-dU/dx. If we extend this to two dimensions in the xy-plane, the force F = - ∇U, where ∇ is the gradient operator.
Applying these concepts to your given potential energy function u(x,y)=α(1/x2+1/y2), the force acting on the object in the x and y directions can be calculated by differentiating this function with respect to x and y respectively, applying the opposite sign.
Learn more about Conservative Force here:https://brainly.com/question/31849659
#SPJ11
How to find a ratio with the denominator of 1 without using a diagram
The point-slope form of the equation of the line that passes through (–5, –1) and (10, –7) is y + 7 = (x – 10). What is the standard form of the equation for this line?
That point slope equation given does not pass through those points, the point slope equation y + 7 = -0.4(x - 10) does, though. The standard form of that would be
2x + 5y = -15
You can get that by distributing the -0.4 out
y + 7 = -0.4x + 4
You can then add 0.4x to both sides, and subtract 7 from both sides to get
0.4x + y = -3
Now some teachers may accept this, but in correct standard form the coefficient of x is a whole number, so you have to multiply both sides by 5 to get rid of the decimal, and you get
The probability that a dvd player produced by vca television is defective is estimated to be 0.06. a sample of ten players is selected at random. (round your answers to four decimal places.) (a) what is the probability that the sample contains no defective units? correct: your answer is correct. (b) what is the probability that the sample contains at most two defective units?
What system of linear inequalities is shown in the graph? Enter your answers in the boxes.
Step 1
Find the slope of the dotted line A
Let
[tex]A(-3,1)\\B(0,2)[/tex]
Find the slope m
[tex]m=\frac{(y2-y1)}{(x2-x1)}[/tex]
substitute in the formula
[tex]m=\frac{(2-1)}{(0+3)}[/tex]
[tex]m=\frac{(1)}{(3)}[/tex]
[tex]mA=\frac{1}{3}[/tex]
Step 2
Find the equation of the line A
we know that
[tex]y-y1=m(x-x1)[/tex]
we have
[tex]mA=\frac{1}{3}[/tex]
[tex]B(0,2)[/tex]
substitute
[tex]y-2=\frac{1}{3}(x-0)[/tex]
[tex]y=\frac{1}{3}x+2[/tex]
Step 3
Find the equation of the inequality A
we know that
the solution is below the dotted line A
so
the inequality A is
[tex]y<\frac{1}{3}x+2[/tex]
Step 4
Find the slope of the solid line B
Let
[tex]B(0,2)\\C(1,0)[/tex]
Find the slope m
[tex]m=\frac{(y2-y1)}{(x2-x1)}[/tex]
substitute in the formula
[tex]m=\frac{(0-2)}{(1-0)}[/tex]
[tex]m=\frac{(-2)}{(1)}[/tex]
[tex]mB=-2[/tex]
Step 5
Find the equation of the line B
we know that
[tex]y-y1=m(x-x1)[/tex]
we have
[tex]mB=-2[/tex]
[tex]B(0,2)[/tex]
substitute
[tex]y-2=-2(x-0)[/tex]
[tex]y=-2x+2[/tex]
Step 6
Find the equation of the inequality B
we know that
the solution is below the solid line B
so
the inequality B is
[tex]y\leq -2x+2[/tex]
therefore
The system of linear inequalities is
[tex]y<\frac{1}{3}x+2[/tex]
[tex]y\leq -2x+2[/tex]
using a graphing tool
the solution is the shaded area
see the attached figure
George exercises 15 minutes a day, every day of the year. How many minutes a year does George exercise? Write and solve an equation to find the answer.
equation : total = 15x
let x = number of days
1 year = 365 days
x = 365
total = 15(365) = 5475 minutes
5/8 of the 64 musicians in a music contest are guitarist. Some of the guitarist play jazz solos, and the rest play classical solos. The ratio of the number of guitarist playing jazz solos to the total number of guitarist in the contest is 1:4. How many guitarist play classical solos in the contest?
What is the factorization of 49b2 − 81? (7b – 9)(7b – 9) (7b – 9)(7b + 9) (7b2 – 9)(7b2 – 9) (7b2 – 9)(7b2 + 9)
The factorization of 49b² - 81 using the difference of squares formula is (7b - 9)(7b + 9).
Explanation:The question is asking to factorize the expression 49b² - 81, which is a difference of two squares. The difference of squares formula is a² - b² = (a - b)(a + b). In your question, a² is 49b² and b² is 81. Therefore, a would be 7b (since square root of 49b² is 7b) and b would be 9 (since square root of 81 is 9).
Thus, using the formula, the factorization of 49b² - 81 will be (7b - 9)(7b + 9). This provides an explanation of the concepts involved and the steps followed in the solution.
Learn more about Factorization here:https://brainly.com/question/33624529
#SPJ2
The difference of a number divided by 7 and 9 is equal to 2. use the variable C what the unknown
rewrite 4/21 and 2/9 so that they have a common denominator, then use <, > or =
How is multiplying and dividing numbers in scientific notation different from adding and subtracting numbers in scientific notation?
In scientific notation, multiplication involves multiplying the numbers before the exponents and adding the exponents, while division involves dividing the numbers before the exponents and subtracting the exponents. Addition and subtraction require the numbers to have the same exponent.
Explanation:
Multiplying and dividing numbers in scientific notation is different from adding and subtracting It's useful to know how to use scientific notation, especially in fields like astronomy where large numbers are common. Numbers in scientific numeration are written with one number to the left of the decimal point. For example, 500,000,000 will be expressed as 5 × 10⁸.
When we multiply two numbers in scientific notation, we multiply the numbers out front and then add the exponents. For instance, if we are multiplying (3 × 10⁵) × (2 × 10¹⁰), our answer will be 6 × 10¹⁵.
On the other hand, to divide two numbers in scientific notation, we divide the numbers out front and then subtract the exponents. For example, if we are dividing 1.2 x 10⁶ by 2 x 10³, our answer will be 0.6 x 10³ or 6 x 10².
When working with addition and subtraction in scientific notation, the numbers must have the same exponent in order for the operation to be performed.
Learn more about Scientific Notation here:https://brainly.com/question/16936662
#SPJ2
Kent caught an 8 pound 3 ounce trout in Pike Lake. The season's record catch so far is 129 ounces. Did Kent's fish beat the record?
It is estimated that light takes 110,000 years to travel the full distance across our galaxy
In the picture please read the rest of the question.
Cassie and Maria and Kirk and Jim raked 7/8 of all the leaves. How much raking did Cassie do?
A model for the population in a small community after t years is given by P(t)=P0e^kt.
a)If the initial population doubled in 5 years, how long will it take to have tripled its initial population?
b)In addition, if the population of the community is 10,000 in 3 years, what was its initial population?
1/4x + 1/3 = 1/6x - 1/4
Hamza bought 8 gallons of brown paint to paint his kitchen and dinning room. Unfortunately, when hamza started painting, he thought the paint was too dark for his house,so he wanted he wanted to make it lighter. The store manager would not let hamza return the paint but did inform that if he used 1 4 of a gallon of white paint mixed with 2 gallons of brown paint, he would get the shade of brown he desires. If hamza decided to take this approach, how many gallons of white paint would hamza have to buy to lighten the 8 gallons of brown paint?
What is the answer to this problem