Answer:
Step-by-step explanation:
The property of rhombus that can be used to proof that a triangle is an equilateral triangle is that when it is split into two equal parts, an equilateral triangle is formed.
What is a rhombus?A rhombus is defined as a quadrilateral that has four equal straight sides with opposite sides parallel and equal opposite angles.
A rhombus with two 60 degree angles and two 120 degree angles can be split by one of its diagonals (the one that bisects the 120 degree angles) into two congruent, equilateral triangles.
Therefore, the property of rhombus that can be used to proof that a triangle is an equilateral triangle is that when it is split into two equal parts, an equilateral triangle is formed.
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124 7/8 drained in 25 mins how much is drained each min
Convert 124 7/8 to 999/8
In 25 minutes, 999/8 is drained -> every minute, 999/200 is drained (4.995)
How do you use double angles to simplify equations? Please provide an example.
Answer:
provide an equation
ill let you know
Solve this pls 7x-10-x=2x+26
Answer:
[tex]7x - 10 - x = 2x + 26[/tex]Taking like terms ( i.e. terms with same variables ) to left side and constant terms ( i.e. simple numbers ) to right side . .
[tex]⇢7x - x - 2x = 26 + 10[/tex][tex]⇢6x - 2x = 36[/tex][tex]⇢4x = 36[/tex][tex]⇢x = \frac{36}{4} [/tex][tex]⇢ \boxed{x = 9}[/tex]
Answer:
x = 9
Step-by-step explanation:
#1) Simplify each side.
7x - 10 - x = 2x + 266x - 10 = 2x + 26#2) Bring x terms to the left side and numbers to the other side.
6x - 2x = 26 + 104x = 36#3) Divide both sides by 4.
4x/4 = 36/4x = 9Show all the work and answer quick!
Answer:
a) 3x
b) 3x
c) 2 2/3 times greater
Step-by-step explanation:
The length of the rectangle:
The width of the rectangle is x. If you add the two widths together when finding perimeter, x + x, that would give you 2x.
Sum of widths: x + x = 2x
Use the sum of the widths to find the sum of the lengths by subtracting from the perimeter.
sum of lengths = perimeter - sum of widths
8x - 2x = 6x
Since there are 2 lengths divide by 2.
6x/2 = 3x
The length of the rectangle is 3x
Perimeter of the square:
The sides of the square are 1/4 of the length of the rectangle. "of" means to mulitply: (I made 3x a fraction by placing it over 1)
[tex]\frac{1}{4} (\frac{3x}{1} )[/tex] = [tex]\frac{3}{4} x[/tex]
Now find the perimeter of the square by multiplying the side length by 4.
[tex]\frac{3}{4}x(\frac{4}{1} )[/tex] = [tex]3x[/tex]
Last part:
solve the rectangle's perimeter by substituting x with 4.
P = 8x
P = 8(4)
P = 32 cm
Solve the square's perimeter by substituting x with 4.
P = 3x
P = 3(4)
P = 12 cm
Divide the rectangle's perimeter by the square's perimeter.
32/12 = 2 2/3 times bigger.
There are 7 black cards and 13 red cards. The probability of selecting a red card will be
Answer:
0.65
Step-by-step explanation:
Add together 7 and 13: there are 20 cards.
Then the theoretical probability of selecting a red card will be:
13
------- = 0.65
20
Answer:
Step-0.65
by-step explanation:
The Glitz Jewelry Kit contains round beads in 6 different colors plus 100 star-shaped beads.
There are 250 beads in all.
Answer:
False, it would actually be 106 beads. If this was a multiplication problem, that would also be false, because 6 times 100 is 600, not 350.
But let's attempt to make this statement true.
First/Last step: Find the missing beads.
The missing beads are 144.
Why?
Because you must add 144 to reach 250, there is no other way but to multiply. In this case, because the key word is, "In all" we are adding.
Which inequality is shown in this graph?
6
5
(-2, 2)
-5
5
(0, -2)
The inequality of the graph is a linear inequality
The inequality shown in the graph is y > -2x -2
How to determine the inequality?The points on the graph are given as:
(x,y) = (-2,2) and (0,-2)
The slope (m) is calculatedusing:
m = (y2 - y1)/(x2 - x1)
This gives
m =(-2 - 2)/(0 + 2)
Evaluate
m = -2
The equation is then calculated as:
y = m(x - x1) + y1
This gives
y = -2(x - 0) -2
y = -2x -2
The upper part of the graph is shaded with a dotted line, so the inequality is a greater than inequality
The equation becomes
y > -2x -2
Hence, the inequality shown in the graph is y > -2x -2
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The 400-meter race times recorded in the boys track meet was normally distributed with a standard deviation of 3 seconds If David finished the race in 51.2 seconds with a -score of -2.6 , what was the mean time ?
Answer:
7AM was 8PM for a few days but 3the 3only 3and 3and 3and 3was is a little too much to me because I am not a fan of the cold and cold 4th
What is the value of x? Enter your answer in the box.
x =
Answer: 12
Step-by-step explanation:
A straight line has a measurement of 180° so these two angles added together will equal 180°.
(10x - 20)° + (6x + 8)° = 180°
10x° + 6x° + 8° - 20° = 180°
16x° -12° = 180°
16x° = 192°
x = 12
Supplementary angles
10x-20+6x+8=18016x-12=18016x=180+1216x=192x=192/16x=12Select the correct answer.
The equation of a line is y = -3x – 2. What are the slope and the y-intercept of the line?
Question 9 options:
slope = -3 and y-intercept = 2
slope = 3 and y-intercept = -2
slope = 3 and y-intercept = 2
slope = -3 and y-intercept = -2
Answer:
D
Step-by-step explanation:
The formula for y=
y=(slope)x-(y intercept).
So, we are given -3 and -2 in the places-
y=(slope)-3x-(y intercept)-2
So, the answer is -3 and -2.
(D)
f(x)=−8x+4 What is the value of f(−14)?
0
2
3
6
Answer: 116
Step-by-step explanation:
We can substitute x=-14, giving us f(-14)=-8(-14)+4=116
Find the angle marked y in the figure below
Answer: 75 degrees
Step-by-step explanation:
please help like i really need it
Answer:
145 degrees.
Step-by-step explanation:
It is 180 minus 35 because they always have to equal 180 so I subtracted 180 by 35
Question 9
Which of the following problems would NOT have a solution?
o Eight pizzas are shared equally among four people, and you want to know how
much each person gets.
o Four pizzas are shared equally among three people, and you want to know how
much each person gets.
o Zero pizzas are shared equally among four people, and you want to know how
much each person gets.
o Three pizzas are shared equally among zero people, and you want to know how
much each person gets.
Answer:
(d) Three pizzas are shared equally among zero people, and you want to know how much each person gets.
Step-by-step explanation:
You want to know which pizza sharing problem has no solution for the amount each person gets:
8 pizzas, 4 people4 pizzas, 3 people0 pizzas, 4 people3 pizzas, 0 peoplePizza per personThe amount of pizza each person gets is found by dividing the number of pizzas by the number of people:
8 pizzas/(4 people) = 2 pizzas per person4 pizzas/(3 people) = 4/3 pizza per person0 pizzas/(4 people) = 0 pizzas per person3 pizzas/(0 people) = undefined — no solutionThe problem of dividing 3 pizzas among 0 people has no solution.
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I guessed Supplementary, but I think I'm just not understanding, help
Which expression has a value of -12?
F (-10 + 4)= (11 - 9)
G (3 - 5).(-4 + 10)
H (5 – 7 +22) = (-2)
(7 - 10) (3 - 7)
Answer:
G.
Step-by-step explanation:
(3 - 5).(-4 + 10)
= -2 * 6
= -12.
Find a unit vector u with the same direction as x =<40,9>.
Answer:
[tex]< \frac{40}{49} , \frac{9}{49} >[/tex]
Step-by-step explanation:
They have the same directionUpon cancelling the denominators, they give :< 40, 9 >Therefore, they have the same denominator100 POINTS!!!!!!!! WILL GIVE BRAINLIEST ASAP!!!!!!!!!
How can x2 = 2x + 4 be set up as a system of equations? (1 point) y = x2 − 2x + 4 y = x2 + 2x + 4 y = x2 y = x2 + 2x + 4 y = x2 + 2x y = x2 + 4 y = x2 y = 2x + 4
Answer:
x=3 and y=4
Step-by-step explanation:
x+y=7;x+2y=11
Step: Solvex+y=7for x:
x+y=7
x+y+−y=7+−y(Add -y to both sides)
x=−y+7
Step: Substitute−y+7forxinx+2y=11:
x+2y=11
−y+7+2y=11
y+7=11(Simplify both sides of the equation)
y+7+−7=11+−7(Add -7 to both sides)
y=4
Step: Substitute4foryinx=−y+7:
x=−y+7
x=−4+7
x=3(Simplify both sides of the equation)
Answer:
x=3 and y=4
Graphing f(x)=(x+2)^2-3 in vertex form
Answer:
Step-by-step explanation:
This is a parabola shaped like a U.
The minimum value is at (-2, -3).
Find the zeroes:
(x + 2)^2 = 3
Find the zeroes:
x + 2 = +/- √3
x = +/-√3 - 2
x = -0.27, -3.73.
So the graph cuts the x axis at (-0.27, 0) and (-3.73, 0)
when x = -4 , f(x) = 1 and when x = 1, f(x) = 6.
So you can now draw the curve through these 5 points and it will be shaped like a U, symetrical about the line x = -2
yes or no for part two
section 7 test yourself
help me please i need help with all other 5 questions
Answer:
[tex] {6}^{3 } [/tex]
Step-by-step explanation:
[tex] {6}^{5 - 2 } \\ {6}^{3} [/tex]
find the x and y intercepts of the linear equation 2x - 4y = -20
Answer:
see explanation↓
Step-by-step explanation:
We are given the following equation of a line:
[tex]2x-4y=-20[/tex]
To determine the x-intercept we must set "y = 0":
[tex]2x-4(0)=-20[/tex]
[tex]2x=-20[/tex]
Now, we divide both sides by 2:
[tex]x=-\frac{20}{2}=-10[/tex]
Therefore, the "x" intercept is -10.
To determine the y-intercept we set "x = 0":
[tex]2(0)-4y=-20[/tex]
[tex]-4y=-20[/tex]
Now, we divide both sides by -4:
[tex]y=\frac{-20}{-4}=5[/tex]
Therefore the y-intercept is 5.
HELPPPPPPPPPPPPPPPPPPPPPPPPPPP
Answer:
Set 1: 6
Set 2: 4.5
Step-by-step explanation:
To find the mean you would add them all up and divide by the total number of points, found by counting the x's. You have one 4; three 5's, two 6's, three 7's, and one 8. You would then add this up. This adds up to 60, and there are 10 points. The mean for set one is 6.
Repeat this process for set b. For this one you would get 4.5
What is the value of y when y + 2.9 = 11?
Answer:
y=8.1
Step-by-step explanation:
help me plsssssssssss
Answer:
Sin 21 = p/b
0.358 = 5.5 / x
x = 5.5 / 0.358
therefore , x = 6.97
Step-by-step explanation:
Use sin formula
which is perpendicular/ base
just put the value
ACTIVITY 2: Apply Pythagorean Theorem to complete the data below and write your answers on your answer sheet. Refer to the given examples. (2 points each number) A 1. 8 15 b 2. 18 24 3. 24 40 a C B 4. 16 20 5. 4 9 a² + b2 or Formulas: If c is unknown: c2 = If a is unknown: a2 = Ifb is unknown: b2 = c² - b2 or c= Va2 + b 2 a= vc2-b2 b = c2 - a2 = a² C2 - a2 or
To completely complete the data use the formula a2 + b2 = c2 in order to find the value of the missing side.
What is the pytagorean theorem?This is a general formula that can be used to find out the lenght of one of the sides in a right-angle triangle by knowing the other sides.
The general formula is:
a^2 + b^2 = c^2side a = base of the triangleside b = altitudeside c= hipotenuse (diagonal line)How to use the theorem?Replace the known sides and find the third side. For example:
a^2 + b^2 = c^25^2+6^2 = c^215 + 36 = c^251 = c^2c = √51c = 7.14Learn more about Pythagorean Theorem in: https://brainly.com/question/14504604
Find the area of the shape shown below.
Answer:
12 cm²
Step-by-step explanation:
Area of triangle: bh/2 = (2)(3)/2 = 3
Area of square: bh = (2)(3) = 6
Total area of the shape = 2 triangles + 1 square
Total area = 2(3) + 6 = 12 cm²
I hope this helps!
Answer:
12
Step-by-step explanation:
You can find the area of the shape 2 different ways.
I'll show you both ways.
First Way: find the area of each individual shape that makes it up then add them together
We can find the area by finding the area of the rectangle and then the two triangles and then adding the two multiples together
Area of a rectangle = length × width
Length = 3 and width = 2
So area = 3 × 2 = 6
Now to find the area of the triangles
Area of a triangle = 1/2bh
Where b = base length and h = height
The base length is 2 and the height is 3
So area = 1/2 × 2 × 3 = 3
There are two triangles and they both have the same dimensions
So the area of both triangles = 2 × 3 = 6
Finally we add the areas together to get the total area
Total Area = 6 + 6 = 12cm²
Second way : Use the area of a trapezoid formula:
The shape shown is a trapezoid so we could also use the area of a trapezoid formula.
Formula : [tex]A=\frac{a+b}{2} h[/tex]
where a and b = base lengths and h = height
The base lengths appear to be 2 and 6 and the height is 3
So a = 2 , b = 6 and h = 3
Which means [tex]A=\frac{2+6}{2} 3[/tex]
Simplify addition
[tex]A=\frac{8}{2} 3[/tex]
simplify division
A = (4)3
Then multiply
A = 12cm²
A textbook store sold a combined total of 255 sociology and physiology textbooks in a week. The number of sociology textbooks sold was two times the number of physiology textbooks sold. How many textbooks of each type were sold?
Answer:
75 physiology Textbook was sold and 150 sociology textbook was sold
Step-by-step explanation:
Let x represent textbook
2x + x = 225
⇒3x = 225
⇒[tex] \sf \frac{\sout{3}x}{\sout{3}} = \frac{225}{3}[/tex]
⇒x = 75
75 textbooks for physiology
To find How many textbook for sociology
Multiply 2 by the amount of physiology
⇒2 × 75
⇒150 sociology textbook
Now, that you have the new wheel circumference, what will happen to the number of rotations if the circumference of the tires were increased by 20%? Calculate the number of rotations for the new wheel. Divide 63,360/new circumference =_______rotations (Please only put the number as your answer)
The number of rotations for the new wheel will be 1,056 rotations
How to calculate the circumference of a wheel?Let the initial circumference be 50 rotations (assumed)
If the number of rotations of the circumference of the tires were increased by 20%, then the new circumference will be:
Ne circumference = 1.2 * 50 = 60
number of rotations for the new wheel = 63360/60
number of rotations for the new wheel = 1,056 rotations
Hence the number of rotations for the new wheel will be 1,056 rotations
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