What is the coefficient of 8 term in the expansion of 2( + 1)10?
Answer:
180
Step-by-step explanation:
2(8+1)10
add the number in parenthesis
2(9)10
18x10
180
The angular speed for a Wind turbine with blades turning at a rate of 19 revolutions per minute is
Answer
The answer to the question is 3.157 revolutions per second.
Step-by-step explanation:
The reason is because speed is the distance the object travels in a second.
So, we know that the wind turbine is moving 19 revolutions per minute, so therefore to find the number of rotations the wind turbine is doing per second we have to do 60/19 because there is 60 seconds in a minute.
Therefore, if we do that equation we get the answer, as 3.157 revolutions per second!
I hope this answer helps!
3sin60°+xcos30°.tan45°=xcot30°
Answer:
x = (6[tex]\sqrt{2}[/tex])/(4[tex]\sqrt{2}[/tex] -3)
Step-by-step explanation:
sin60 degree = [tex]\sqrt{3}[/tex] /2
cos30 degree = 1/2
tan 45 degree = sin45 degree / cos45 degree = ([tex]\sqrt{2}[/tex]/2)/([tex]\sqrt{2}[/tex] /2) = 1
cot 30 degree = cos30 / sin30 = ([tex]\sqrt{3}[/tex] /2)/(1/2) = [tex]\sqrt{3}[/tex]
so, let us plug the above values in the given eqution and solve for x
3([tex]\sqrt{3}[/tex] /2 ) + x(1/2) *1 = x([tex]\sqrt{3}[/tex])
3([tex]\sqrt{3}[/tex] /2 ) = x([tex]\sqrt{3}[/tex]) -x(1/2)
3([tex]\sqrt{3}[/tex] /2 ) = x(([tex]\sqrt{3}[/tex])-(1/2)) (by taking x as a common factor)
3([tex]\sqrt{3}[/tex] /2 ) = x(((2[tex]\sqrt{3}[/tex])-(1))/2)) (making the same common denominator
now devide both sides by (((2[tex]\sqrt{3}[/tex])-(1))/2))
x = 3([tex]\sqrt{3}[/tex] /2 ) / (((2[tex]\sqrt{3}[/tex])-(1))/2))
x = 3([tex]\sqrt{3}[/tex] ) / ((2[tex]\sqrt{3}[/tex])-(1))
-(x-3)=-7 I need help with this equation
Answer:
x = 10
Step-by-step explanation:
Given
- (x - 3) = - 7 ( divide both sides by - 1 )
x - 3 = 7 ( add 3 to both sides )
x = 10
Benjamin uses a $20 bill to pay for his lunch. He received more than $5 in change. Which number line shows the possible cost of Benjamin's lunch?
Answer:
i dont see a number line, attach a pic pls
Step-by-step explanation:
Explain how to do this please!
Answer:
4 children per counselor
Step-by-step explanation:
Since the question is asking children per counselor, divide the children/counselor. Check all of the rows by dividing the children by counselor to make sure the constant of proportionality is correct. If you divide correctly, the constant of proportionality you get is 4.
Hope it helps!
Answer:
there is 4 students per conceler.
Step-by-step explanation:
please mark as brainllist.
Diego pours 8 ounces of water from a full bottle of 36 ounces. What is the percent of decrease of water in the bottle?
Answer:
The answer is 22%.
Step-by-step explanation:
All you need to do to figure this out is to divide 36 by 8.
8/36=.222222
Hope this helps!
please help me will give you brainliest!!
Answer:
yes, no, no, yes
Step-by-step explanation:
Plug in each point into both equations to see which ones fit.
For the first point, (4,1) it works for both equations.
1=-2( 4 ) + 9, 1= -8 + 9, 1=1
4( 4 )+2( 1 )=18, 16 + 2 = 18, 18 = 18
Do it for the rest of the points and plug them in and you get,
no for (5,-3) because -1 does not equal to -3
no for (6,0) because -3 does not equal to 0
(-5,19) is yes because 19=19 and 18=18
Please mark me brainliest
Evaluate the expression when n = 2.3. 5(n − 2) + 9 =
Answer:n=2.3.5(n-2)+9=n=44.6
Write the polynomial in standard form: x^2+4-3x
Answer:
x^2-3x+4
Step-by-step explanation:
A farmer fed 9 bags of food to his 5 cows. Each cow ate the same amount of food. How many bags of food did each cow eat?
Answer:
1.8 bags
Step-by-step explanation:
you just divide 9 by 5
The number of bags of food that each cow eats will be 1.80 bags.
What is Algebra?Algebra is the study of abstract symbols, while logic is the manipulation of all those ideas.
The acronym PEMDAS stands for Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This approach is used to answer the problem correctly and completely.
A farmer fed 9 bags of food to his 5 cows. Each cow ate the same amount of food.
Then the number of bags of food that each cow eats will be given as,
⇒ 9 / 5
⇒ 1.80 bags
The number of bags of food that each cow eats will be 1.80 bags.
More about the Algebra link is given below.
https://brainly.com/question/953809
#SPJ2
6) Which of the following are solutions to the inequality: m > 4? (Choose all that apply.)
A. 10
B. 4
C. 7
D. 5
7) Which of the following values would NOT be in the solution set for the inequality: 3m > 12
A. 10
B. 4
C. 7
D. 5
Answer:
c
a
Step-by-step explanation:
Answer:6) A:10 7) B:4
Step-by-step explanation:
m=input value, correct? So,
4 is NOT greater than 4, so the answer must be 10
3(4) is NOT greater than 12
explain what the Diameter is and how is the radius related to it.
What can the radius and Diameter help us find?
Answer:
The diameter is any straight line that passes through the center of the circle, which endpoints can lie on. The radius is half the diameter. They help us find the circumference of a circle
Answer:
The diameter is the length of the line through the center that touches two points on the edge of the circle. It is related to the radius because whatever the diameter is is double what the radius is. In differential geometry, the diameter is an important global Riemannian invariant.
Step-by-step explanation:
Solve the system of equations.
- 5y + 8x = -18
5y + 2x = 58
х=
y =
Answer:
x = 4 and y = 10
Step-by-step explanation:
-5y + 8x = -18
5y + 2x = 58
First you will want to get rid of y from both equations, so you add both equations together.
You will get 10x = 40, then subtract 10 from both sides and you get x = 4.
Now substitute x as 4 in any of the equations to get y.
-5y + 32 = -18
-5y = -50
y= 10
Answer:
x = 4
y = 10
Find the value of f(-9).
y = f(x)
Two vertices of a rectangle are (−10, −7) and (−10, 18) .
What is the length of this side of the rectangle?
Answer:
The length of the side of the rectangle is 11 units.
Answer:
11 units
Step-by-step explanation:
did the unit test in K12
A circle has a diameter of 6ft. What is the area of the circle?
Very easy!! (i think-_-) A≈28.27 ft2 :))
17/8x+3/4x+1/6-7/12x+18/3 simplify
Answer:
55x + 148/24
Explanation:
What is the perimeter of this figure
40 in.
10 in.
50 in.
18 in.
Answer:
236
Step-by-step explanation:
100+100+36=236
Answer:
C. 180
Step-by-step explanation:
25/35 Marks
Find the midpoint of A and B where A has coordinates (8, 2)
and B has coordinates (3,8).
Answer:
[tex]\displaystyle (\frac{11}{2},5)[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
Coordinates (x, y)Midpoint Formula: [tex]\displaystyle (\frac{x_1+x_2}{2},\frac{y_1+y_2}{2})[/tex]Step-by-step explanation:
Step 1: Define
Point A(8, 2) → x₁ = 8, y₁ = 2
Point B(3, 8) → x₂ = 3, y₂ = 8
Step 2: Find Midpoint
Simply plug in your coordinates into the midpoint formula to find midpoint
Substitute in points [Midpoint Formula]: [tex]\displaystyle (\frac{8+3}{2},\frac{2+8}{2})[/tex][Midpoint] [Fraction] Add: [tex]\displaystyle (\frac{11}{2},\frac{10}{2})[/tex][Midpoint] Divide: [tex]\displaystyle (\frac{11}{2},5)[/tex]I know it's very trifling of me to ask this but, I do not understand. If can so much as help me with just a few that would save me a lot.
Answer:
Percent increase
1. [tex]60[/tex] %
2. [tex]50[/tex] %
3. [tex]74.42[/tex] %
4. [tex]11.46[/tex] %
5. [tex]220[/tex] %
Step-by-step explanation:
1. $5 to $8
[tex]\frac{8-5}{5} * 100 = 60[/tex] %
2. From 20 students to 30 students
[tex]\frac{30-20}{20} * 100 = 50[/tex] %
3. From 86 books to 150 books
[tex]\frac{150-86}{86} * 100 = 74.42[/tex] %
4. From $3.49 to $ 3.89
[tex]\frac{3.89-3.49}{3.49} * 100 = 11.46[/tex] %
5. From 5 mile to 16 mile
[tex]\frac{16-5}{5} * 100 = 220[/tex] %
me need help whit math
Answer:
0.39%
hope this helps
good at math & need points? help!!
Answer:
D
Step-by-step explanation:
passes through (-1, -5) and (2, 6)
Answer:
[tex]y = \frac{11}{3}x + -\frac{4}{3}[/tex]
Step-by-step explanation:
[tex]y = mx + b\\m = \frac{-5 - 6}{-1 - 2} = \frac{-11}{-3} = \frac{11}{3} \\\\y = \frac{11}{3}x + b\\6 = \frac{11}{3}(2) + b\\6 = \frac{22}{3} + b \\6 - \frac{22}{3} = b \\b = -\frac{4}{3}\\\\y = \frac{11}{3}x + -\frac{4}{3}[/tex]
Mariah ordered 50 beads. 8 of the beads were blue. What percent of the beads were blue?
Answer:
16%
Step-by-step explanation:
Hope this helps :D
-6p-3=9 what does p equal
Answer:
-2
Explanation:
-6 x -2 = 12
12 - 3 = 9
Answer:
p=-2
Step-by-step explanation:
Move the -3 to the other side by adding 3 on both sides:
-6p-3+3=9+3
The equation now looks like this:
-6p=12
Divide -6 on both sides:
-6p/-6=12/-6
The equation now looks like this:
p=-2 which is the answer
Hope this helps!
: Susan bought a 6-month $1,400 certificate of deposit. At the end of 6 months, she
received $126 simple interest. What annual rate of interest did the certificate pay?
What is the least common denominator of the rational expressions below?
2/7 - 7/4x^2+12x
O A. 4x^2(x + 3)
O B. x^2(x + 3)
O c. x^2(x + 3)
O D. 4x^2(x+3)
Answer:
A. 4x^2(c+3)
Step-by-step explanation:
The radius of a circle is 10 feet. What is the angle measure of an arc bounding a sector with area 15 square feet?
Solve 2(x - 5) = 3(x + 7)
Answer:
x = -31
Step-by-step explanation:
2(x-5) = 3(x+7) 1. Use distributive property
2x - 10 = 3x + 21 2. Add 10 on both sides
2x = 3x + 31 3. Subtract 3x on both sides
-x = 31 4. Divide by -1
x = -31