Answer:
Step-by-step explanation:
Determine the domain. The excluded values are those values for the variable that result in the expression having a denominator of 0.
Factor the numerator and denominator.
Find common factors for the numerator and denominator and simplify.
Find the area of the shaded sector. PLZ HELP!:)
Answer:
Area of whole circle, i.e. 360 degrees = π(8.91)(8.91) = 79.3881 sq. cm
Area of 1 degree = 0.2205225 sq.cm.
Area of 81 degrees = 17.8623225 sq.cm.
The area of the shaded sector is about 16.77 cm2.
We are given that;
The radius=8.91
Now,
Surface area are derived for some standard shapes like circle, triangle, parallelogram, rectangle, trapezoid, etc.
When some shape comes which isn't standard figure, then we find its area by slicing it (virtually, like by drawing lines) in standard shapes. Then we calculate those composing shapes' area and sum them all.
Thus, we have:
[tex]\text{Area of composite figure} = \sum (\text{Area of composing figures})[/tex]
That ∑ sign shows "sum"
To find the area of the shaded sector, we need to use the formula:
[tex]$A = \frac{\theta}{360} \times \pi r^2$[/tex]
where [tex]\theta[/tex] is the central angle in degrees, and r is the radius of the circle.
Plugging in the given values, we get:
[tex]$A = \frac{81}{360} \times \pi (8.91)^2A \approx 16.77 \text{ cm}^2$[/tex]
Therefore, by the area answer will be 16.77 cm2.
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Find a slope of a line that passes through (2,4) and (1,7)
Answer:
- 3Step-by-step explanation:
The slope of a line given two points can be found by using the formula
[tex]m = \frac{ y_2 - y _ 1}{x_ 2 - x_ 1}\\[/tex]
From the question we have
[tex]m = \frac{7 - 4}{1 - 2} = - \frac{3}{1} = - 3 \\ [/tex]
We have the final answer as
- 3Hope this helps you
What is the solution to this equation?
6x +4= 40 – 2
X=
Answer:
X=5 2/3
Step-by-step explanation:
Working simultaneously, four fudge machines complete a big order in 32 hours. All the machines at the fudge factory work at the same pace. In how many hours will the order be complete with twice the number of working machines?
Answer:16
Step-by-step explanation:
Answer:
16 hours
Step-by-step explanation:
Which of the students found the correct value of their expression? Select all that are true. None of the students Student 2 Student 1 Student 3 I will give you TEN BIG POINTS PLZ HELP.
Answer:
Step-by-step explanation:
Student 2 and student 1
Given the function f(x)=4(2)2, Section A is from x=1 to x=2 and section B is from x=3 to x=4. Part A: find the average rate of change of each section. Part B: How many times greater is the average rate of change of section B than section A? Explain why one rate of change is greater than the other.
Answer:
I found thois from someone else asking this queetion so gope it helps.
Step-by-step explanation:
I'm sure you want your functions to appear as perfectly formed as possible so that others can help you. f(x) = 4(2)x should be written with the " ^ " sign to denote exponentation: f(x) = 4(2)^x
f(b) - f(a)
The formula for "average rate of change" is a.r.c. = --------------
b - a
change in function value
This is equivalent to ---------------------------------------
change in x value
For Section A: x changes from 1 to 2 and the function changes from 4(2)^1 to 4(2)^2: 8 to 16. Thus, "change in function value" is 8 for a 1-unit change in x from 1 to 2. Thus, in this Section, the a.r.c. is:
8
------ = 8 units (Section A)
1
Section B: x changes from 3 to 4, a net change of 1 unit: f(x) changes from
4(2)^3 to 4(2)^4, or 32 to 256, a net change of 224 units. Thus, the a.r.c. is
224 units
----------------- = 224 units (Section B)
1 unit
The a.r.c for Section B is 28 times greater than the a.r.c. for Section A.
This change in outcome is so great because the function f(x) is an exponential function; as x increases in unit steps, the function increases much faster (we say "exponentially").
The sum of two numbers is 47. The greater number is 9 more than the smaller number. Which equation can be used to solve for the smaller number?
x + (x + 9) = 47
x − (x + 9) = 47
x(x + 9) = 47
x(x − 9) = 47
Answer:
x + (x + 9) = 47
Step-by-step explanation:
This equation can be used to solve for the smaller number.
solve for m: pr = k/m
If The volume of a pool is 2512 cubic feet and the height is 8 feet, what is the radius of a pool?
Answer: 314
Step-by-step explanation: This is true because 2512 by 8 you get 314
The radius of a pool is 10 feet.
It is required to find the radius of a pool.
What is the cylinder?Cylinder is a three-dimensional solid that holds two parallel bases joined by a curved surface, at a fixed distance. A cylinder has two bases and a curved surface. Total surface area = 2πr(r +h) square units. Curved surface area = 2πr h square units.
Given:
The given pool is in the shape of cylinder.
Volume of a pool = 2512 cubic feet
The height = 8 feet.
According to given question we have,
Volume of a pool=π[tex]r^{2} h[/tex]
2512 =π[tex]r^{2} *8[/tex]
Divide 8 on both sides we get,
[tex]r^{2}[/tex]=314/π
[tex]r=\sqrt{314/3.14} \\\\r=10 feet[/tex]
Therefore, the radius of a pool is 10 feet.
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Who know this one and can help me out
Given the function f(x) = -5x2 + 3x, express the value of f(a+h) – f(x) in simplest
form.
Step-by-step explanation:
it comes to
[tex] - 7x[/tex]
Order the numbers from greatest to least 0.7 0.007 1.7 0.17
Answer:
1.7,0.7,0.17,0.007 is the answer
Billy plotted −3 4 and −1 4 on a number line to determine that −3 4 is smaller than −1 4 . A number line going from negative 2 to positive 2 in increments of 1. There are 4 equal spaces between each number. A point is 1 mark to the right of negative 1, and another point is 1 mark to the left of 0. Is he correct? Explain why or why not.
Answer:
Sample Response: Yes, Billy is correct. The fractions are placed on the correct tick marks. The smaller fraction is located to the left of the larger fraction.
Step-by-step explanation:
What is the value of 2(8-(-2))
-8(17-12)
04
Do you mean this 2(8-(-2))-8(17-12)4 - If that then the answer is -140
Solve for the value of v.
Answer:
6x9 =54
54-4 =50
v =9
Answer:
v =9
Step-by-step explanation:
A company has a $150 budget to provide lunch for its 20 employees. The options are to provide either roast beef sandwiches, which cost $5 apiece, or tuna sandwiches, which also cost $5 apiece. The company also wants to use the entire budget. Suppose r represents the number of roast beef sandwiches it provides and t represents the number of tuna sandwiches. Which statement is correct?
The company can provide lunch for all 20 employees and use the entire budget because there is a solution to the system of equations r minus t = 20 and 5 r + 5 t = 150.
The company can provide lunch for all 20 employees and use the entire budget because there is a solution to the system of equations r + t = 20 and 5 r + 5 t = 150.
The company cannot provide lunch for all 20 employees and use the entire budget because there is no solution to the system of equations r minus t = 20 and 5 r + 5 t = 150.
The company cannot provide lunch for all 20 employees and use the entire budget because there is no solution to the system of equations r + t = 20 and 5 r + 5 t = 150.
Answer:
D.) The company cannot provide lunch for all 20 employees and use the entire budget because there is no solution to the system of equations r+t=20 and 5r+5t=150
Step-by-step explanation:
The given information says that the total amount of lunch bought should equal $150 when both options cost $5:
[tex]5r+5t=150[/tex]
It also says that the food should feed all 20 employees:
[tex]r+t=20[/tex]
This is now a system. Solve by substitution.
Solve the second equation for r. Use inverse operations to isolate the variable by subtracting t from both sides:
[tex]r+t-t=20-t\\\\r=20-t[/tex]
Now insert this value of r into the first equation:
[tex]5(20-t)+5t=150[/tex]
Simplify the equation. Use the distributive property:
[tex]5(20)+5(-t)+5t=150\\\\100-5t+5t=150[/tex]
Cancel the terms:
[tex]100\neq 150[/tex]
100 does not equal 150, so there is no solution to the system.
:Done
Tamara sold 92 cold drinks during her 2-hours shift a festival food stand. If she sold same number of drinks each hour , how many cold drinks did she sell each hour?
Answer:
92/2= 46/h
46 and hour is the answer
WILL GIVE BRAINLIEST
Answer:
A
its the first one
what is the solution 12r=-1-7e
Choose the description that matches the inequality. x < 1
The description that matches the inequality x < 1 is:
All the points to the left of x = 1 are part of the solution, and there is an open interval at x = 1.
What is the description of the inequality?The values that are less than a number a in the number line are the values to the left of a.
Hence, for the inequality x < 1, we have that:
All the points to the left of x = 1 are part of the solution
Additionally, since the inequality signal is < and not ≤ 1, x = 1 is not part of the inequality, meaning that there is an open interval at x = 1.
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Find the equation of a line the has a slope of 2/5 and goes through the point of 15,11
Scompty Simplify the expression and x(x-3)+2(x=1)
Answer: 0
Step-by-step explanation:
Answer:
0
Step-by-step explanation:
Replace x with 1, because x = 1:
(1) [(1) - 3] + 2
[1 - 3] + 2
[-2] + 2
0
What is 3/5 divided by 1/9 please I need to knoooooooooow
Answer: 5 2/5
Step-by-step explanation: Dividing two fractions is the same as multiplying the first fraction by the reciprocal of the second fraction. The first step to dividing fractions is to find the reciprocal (reverse the numerator and denominator) of the second fraction. Next, multiply the two numerators. Then, multiply the two denominators. Lastly, you should end up with an answer.
Nicole made costumes for the annual school play. She used a total length of 1468.8 in of blue fabric. The fabric came in 3 rolls that each had the same length. How much fabric was in each roll? Write your answer in yards.
Which table has a constant of proportionality between y and x of
of
1/4
Answer:
???????????????????????????????????
Help me out hereeeeeeeeeeeeeee
The answer is 5 11/12.
You have to add 3 1/4 AND 2 2/3.
3 1/4 + 2 2/3 =
add the whole numbers FIRST.
2 + 3 = 5
Now add the fractions
1/4 + 2/3 = 11/12.
Now add both of the numbers
5 + 11/12 = 5 11/12
How do you tell a girl you like them? (this question was for my brother im a girl and im not gay) Please whoever answers the best gets brainliest.
Answer:
All i have to say is be kind. Thats all.
Step-by-step explanation:
¿Cómo influye el fenómeno de capilaridad en la vida de las plantas?
Answer:
Plants use capillary action to bring water up the roots and stems to the rest of the plant. Therefore, if the plant could not do this the plant would die.
Step-by-step explanation:
I need help please Will mark brainliest.
Answer:
10 is the constant
y = 4x + 10
Step-by-step explanation:
Y is the y- intecerpt
x is the slope.
constant is any number by itself no x no nothing since 4 is the slope and has X the constant is the y-intercept which is 10.
Answer:
K = 2.5
y = 2.5 * 4
Step-by-step explanation:
K = y/x
K = 10/4
2.5 = 10/4
K = 2.5
y = k * x
y = 2.5 * 4
How do I make -25/176 in decimal form?!?!I WILL GIVE BRAINLIEST TO WHOEVER ANSWERS:)
divide.
-25/176 is -.142
Answer:
you divide -25 by 176
-25 on the inside of the "dog house" and 176 on the outside because if you did it the other way it would be a whole number.
It would equal -0.14204545454
I hope this is good enough for you: