Answer:
x = 5/2
Step-by-step explanation:
We can use cross products to solve this equation
x/3 = 5/6
Multiply
x*6 = 3*5
6x = 15
Divide each side by 6
6x/6 = 15/6
Simplify
x = 5/2
Find the area and perimeter of ABC. A(-2,-4)B(1,5)C(2,2)
The area of triangle ABC is 23.5 square units and the perimeter is 20.4174 units.
To find the area and perimeter of the given triangle ABC, we need to apply the following formulas:Formula for Distance between two points:
The distance between two points (x1, y1) and (x2, y2) is given by:
AB = √(x2-x1)²+(y2-y1)²BC = √(x3-x2)²+(y3-y2)²AC = √(x3-x1)²+(y3-y1)²
Formula for Area of Triangle: If we know the length of the three sides of a triangle then,
using Heron's formula, we can calculate the area of the triangle as:
area = √s(s-a)(s-b)(s-c)where a, b, and c are the lengths of the sides of the triangle and s is the semi-perimeter of the triangle, which is given as s = (a+b+c)/2
Formula for Perimeter of Triangle: The perimeter of the triangle is the sum of the lengths of its sides.
That is: perimeter = AB + BC + ACArea of ΔABCAB
= √(1 - (-2))² + (5 - (-4))²AB
= √3²+9² = √90BC
= √(2 - 1)² + (2 - 5)²BC
= √1²+3² = √10AC
= √(2 - (-2))² + (2 - (-4))²AC
= √4²+6²
= √52Semi-Perimeter (s)
= (AB + BC + AC)/2
= (√90 + √10 + √52)/2
= 12.8572Area of ΔABC
= √s(s-a)(s-b)(s-c)
= √12.8572(12.8572-√90)(12.8572-√10)(12.8572-√52)
= 23.5
Perimeter of ΔABC = AB + BC + AC = √90 + √10 + √52 = 20.4174
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if a (A) a/b, (B) b/a, (C) a/c, (D) c/a, (E) b/c
2. Identify the property of equality that justifies the missing step to solve the given equation
Answer:
Subtraction property of equality
Step-by-step explanation:
Given the equation;
2x + (x+5) = 41
open the parenthesis;
2x+x + 5 = 41 (Associative property)
3x+5 = 41
Subtract 5 from both sides
3x + 5 = 41
3x + 5- 5 = 41 - 5 (Subtraction property of equality)
3x = 36
Divide both sides by 3;
3x/3 = 36/3
x = 12 (Division property of equality)
Hence the required property is Subtraction property of equality
A triangle has perimeter 38 cm.
Two sides of the shapes are put
together to make a pentagon
A square has perimeter 48 cm.
What is the perimeter
of the pentagon?
cm
Answer:
62cm
Step-by-step explanation:
You were told the perimeter of the triangle is 38
but two sides are added to make a Pentagon. and that Pentagon is made up of a triangle and a square.
so if we find the side of the square, we can equally get the other two sides of the triangle.
hint: (because it's a square, we would be getting an isosceles triangle, meaning two sides are equal)
because one side of the pentagon added to the other two sides of the triangles gives us the perimeter of the triangle.
we first find the sides of the square with all sides equal by diving by 2
\( \frac{48}{2} = 12\)
the sides of the square making the perimeter of the square 12cm.
now we subtract 12 from the perimeter of the triangle 38
\(38 - 12 = 26\)
now that we have gotten one side we can get the other two by dividing the result by 2
\( \frac{26}{2} = 13\)
so the other two sides of the triangle are 13cm.
now since we have the sides of the square and the triangle, we can find the perimeter of the pentagon by adding.
all the sides of the triangle without the base which is also the top of the square.
so instead of adding 4 times of 12, we add 3 times of 12 and 2 times of 13.
3(12)+2(13) = 62
or
12 + 12 + 12 + 13 + 13 = 62cm
Aida is 15 years old. Brice is five years younger than Aida. Henry is three years younger than Aida. How old is Brice?
Answer:
Bryce is 10 years old
Step-by-step explanation:
The age of Brice is given by B = 10 years old
What is an Equation?Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given data ,
Let the equation be represented as B
Now , the value of B is
Substituting the values in the equation , we get
The age of Aida = 15 years
The age of Brice = 5 years younger than Aida
On simplifying the equation , we get
So , age of Brice = 15 - 5 = 10 years
The age of Henry = three years younger than Aida
So , the age of Henry = 15 - 3 = 12 years
Hence , the age of Brice is 10 years old
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A normal distribution is informally described as a probability distribution that is "bell-shaped" when graphed. Draw a rough sketch of a curve having the bell shape that is characteristic of a normal distribution.
The bell-shaped curve, also known as a Gaussian curve or a symmetrical distribution , showcases a central peak with data symmetrically distributed around it .
What is a bell curve known for ?Revered for its iconic shape, the bell curve enchants the discerning observer with its symmetrical countenance, reminiscent of a resonant chime.
This majestic distribution unveils its true essence through its discernible apex, a testament to central tendency , where the mean, median, and mode converge, bestowing upon it an air of distinction .
The rough sketch of the curve having the bell shape is shown attached to the question.
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Determine if the sequence is arithmetic, geometric, or neither: 15, 18, 21, 24,
Answer:
arithmitic
Step-by-step explanation:
4x+5(7x-3)=9(x-5)
x=???
Answer:
i think its 3 im not sure
Step-by-step explanation:
Answer:
x = -1
Step-by-step explanation:
Given equation,
→ 4x + 5(7x - 3) = 9(x - 5)
Now the value of x will be,
→ 4x + 5(7x - 3) = 9(x - 5)
→ 4x + 35x - 15 = 9x - 45
→ 39x - 15 = 9x - 45
→ 39x - 9x = -45 + 15
→ 30x = -30
→ x = -30/30
→ [ x = -1 ]
Hence, the value of x is -1.
Find the equation of the tangent line to the curve at the given point?
y = x cot(x) at the point with x-coordinate= π/4
Answer:
The equation of the tangent line
\(y - \frac{\pi }{4} = (\frac{-\pi }{2} +1)( x - \frac{\pi }{4} )\)
Step-by-step explanation:
Step(i):-
Given function y = x cot (x) ....(i)
Differentiating equation (i) with respective to 'x' , we get
\(\frac{dy}{dx} = x (-Co sec^{2} (x)) +cot(x) (1)\)
Step(ii):-
The slope of the tangent line
\(\frac{d y}{d x} = -x Co-sec^{2} (x) +cot x\)
\((\frac{d y}{d x} )x_{=\frac{\pi }{4} } = -\frac{\pi }{4} Co-sec^{2} (\frac{\pi }{4} ) +cot \frac{\pi }{4}\)
We will use trigonometry formulas
\(Cosec(\frac{\pi }{4} ) = \sqrt{2}\)
\(sec(\frac{\pi }{4} ) = \sqrt{2}\)
\(Cot(\frac{\pi }{4} ) = 1\)
Now the slope of the tangent
\(\frac{dy}{dx} =-\frac{\pi }{4} (\sqrt{2})^{2} )+1\)
\(\frac{dy}{dx} =-\frac{\pi }{2} +1\)
Step(iii):-
Given
Substitute \(x=\frac{\pi }{4}\) in y = x cot (x)
\(y = \frac{\pi }{4} cot (\frac{\pi }{4} )\)
\(y = \frac{\pi }{4}\)
The point of the tangent line \((x ,y ) = (\frac{\pi }{4} , \frac{\pi }{4} )\)
The equation of the tangent line
\(y - y_{1} = m ( x - x_{1} )\)
\(y - \frac{\pi }{4} = (\frac{-\pi }{2} +1)( x - \frac{\pi }{4} )\)
Find the missing side of the triangle. Leave your answer in simplest radical form.
O √31 mi
O 2√14 mi
O √106 mi
O √137 mi
The value of x is 2√14 mi
What is Pythagoras theorem?Pythagoras theorem states that the sum of the squares on the legs of a right triangle is equal to the square on the hypotenuse.
Therefore, if a and b are the legs of the triangle and c is the hypotenuse, then
c² = a²+b²
here, x and 5 are the legs and 9 is the hypotenuse of the triangle.
therefore;
x² = 9²-5²
x² = 81-25
x² = 56
x = √56
x = √4×14
x = 2√14
Therefore the value of the Missing side is 2√14 mi
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please help me i’ll give you brainlist!
X intercept: 10/5
Y intercept: 0
How to find intercept of a linear equation?To find the intercepts of a linear equation, you need to set either the X or Y variable to 0 and then solve for the other variable.
For example, if you have the equation 5x - 2y = 10, you can set X equal to 0 and solve for Y to find the Y intercept, or you can set Y equal to 0 and solve for X to find the X intercept.
X Intercept:
To find the X intercept, set Y equal to 0 and solve for X.
5x - 2(0) = 10
5x = 10
x = 10/5
X intercept = 10/5
Y Intercept:
To find the Y intercept, set X equal to 0 and solve for Y.
5(0) - 2y = 10
-2y = 10
y = -10/2
Y intercept = 0
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A triangle has sides with lengths of 2x - 7,5x - 3, and 2x - 2. What is the perimeter of the triangle?
A CLASS OF 28 STUDENTS HAS 12 GIRLS.WHAT IS THE RATIO OF GIRLS TO BOYS
Answer:
3:7
Step-by-step explanation:
thats the ratio simplified
Answer:
12:16
Step-by-step explanation:
I NEED HELP ASAP PLEASE HELP
Answer:
a) lilla has 1/5 of the book left to read
b) lilla has 15 pages left to read
Step-by-step explanation:
a) 1/5 + 3/5 = 4/5
b) 75÷ 5= 15
15× 4= 60
75-60= 15
A new car is bought for $100,000. If the annual depreciation is 10%, find the value of the car after 3 years.
Remaining Amount = 100,000(1 -0.1)3
The value of the car after 3 years is $79, 000
How to determine the valueTo determine the value, we have to use the formula;
Value = Initial value × (1 - Depreciation rate)ⁿ
Substitute the values given, we get;
Remaining value after 3 years = $100,000 × (1 - 0.10)³
Expand the bracket, we get;
Value after 3 years = $100,000 × (0.90)³
Find the cube value and substitute, we have;
Value after 3 years = $100,000 × 0.729
Multiply the values, we have;
Value after 3 years = $72,900
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probability the top 4 cards include 3 different ranks, with one rank apprears twice (for example, an ace of hearts, a 3 of clubs, a 3 of hearts, and a 7 of spades).
(a) The probability that the top card is an ace or a king is \($\frac{2}{13}\)
(b) The probability that the top card is spades and the second card is clubs is \($\frac{1}{2652}\)
(c) The probability that the top card is spades and the second card is an ace is \($ \frac{1}{663}\)
(d) The probability that the top 3 cards are all spades is \($\frac{1}{132600}\)
(e) The probability that the top 4 cards include 3 different ranks, with one rank appears twice is \($\frac{2}{925}\)
As per the data given:
A standard deck of 52 cards has 13 ranks (ace, 2, 3, 4, 5, 6, 7, 8, 9, 10, jack, queen, king) and 4 suits (spades, hearts, diamonds, and clubs), such that there is exactly one card for any given rank and suit.
a) The probability that the top card is an ace or a king:
The probability that the top card is an ace \($\frac{4}{52} = \frac{1}{13}\)
The probability that the top card is an king \($\frac{4}{52}=\frac{1}{13}\)
The probability that the top card is an ace or a king is \($\frac{1}{13} +\frac{1}{13} =\frac{2}{13}\).
b) The probability that the top card is spades is \($\frac{1}{52}\)
Already a card is drawn then the probability that the second card is clubs is \($\frac{1}{51}\)
The probability that the top card is spades and the second card is clubs is \($\frac{1}{52}\times\frac{1}{51} = \frac{1}{2652}\)
c) The probability that the top card is spades is \($\frac{1}{52}\)
Already a card s drawn then the probability that the second card is an ace is \($\frac{4}{51}\)
The probability that the top card is spades and the second card is an ace is \($\frac{1}{52}\times\frac{4}{51} = \frac{4}{2652} = \frac{1}{663}\)
d) The probability that the top 3 cards are all spades is \($\frac{1}{52}\times\frac{1}{51}\times\frac{1}{50} = \frac{1}{132600}\)
e) There are C(52, 4) ways to choose 4 cards from the deck, and the 4 ways to choose the rank that appears twice.
So, the total number of ways to choose 4 cards with 3 different ranks and one rank appearing twice is 4 C(52, 4) = 4 × 270725.
The number of ways to choose the 4 cards such that they include 3 different ranks, with one rank appearing twice is 4 C(13, 2) C(4, 2) = 672.
Hence, the probability is \($\frac{672}{270725} =\frac{2}{925}\)
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A standard deck of 52 cards has 13 ranks (ace, 2, 3, 4, 5, 6, 7, 8, 9, 10, jack, queen, king) and 4 suits (spades, hearts, diamonds, and clubs), such that there is exactly one card for any given rank and suit. The deck is randomly arranged. What is the probability that
(a) the top card is an ace or a king.
(b) the top card is spades and the second card is clubs.
(c) the top card is spades and the second card is an ace.
(d) the top 3 cards are all spades.
(e) the top 4 cards include 3 different ranks, with one rank appears twice (for example, an ace of hearts, a 3 of clubs, a 3 of hearts, and a 7 of spades).
my dress was only php250.but i also had to pay the 4% tax.how much did i pay
Answer:
total=$260 tax=$10
Step-by-step explanation:
total:
250x104%
= 250x1.04
=260
tax:
4%*250
=$10
inasmuch as 76543 is greater than 43765 help pleace
Answer:
32778
Step-by-step explanation:
76543-43765=32778
what's the inverse of f(x)=(x+3)^5
Answer:
The inverse is,
\(f^{-1}(x) = \sqrt[5]{x} - 3\)
Step-by-step explanation:
f(x) = (x+3)^5
Finding the inverse,
\(f(x) = (x+3)^5\\or,\\y = (x+3)^5\)
We replace x with y and vice versa
so,
\(x = (y+3)^5\)
Solving for y,
the the 5th root,
\(\sqrt[5]{x} = y + 3\\y = \sqrt[5]{x} - 3\)
hence the inverse function is,
\(f^{-1}(x) = \sqrt[5]{x} - 3\)
Step-by-step explanation:
f(x)=(x+3)×5
Y=5X+15
now
interxchanging x and y we get,
x=5y+15
5y=x-15
y=x-15/5
therefor f~1(x)=x-15/5
 Jill solves the equation: 3(x - 5) + 2x = 0
Fill in the blanks with the correct values,
3x +
+ 2x = 0
5x =
X=
Word Bank:
-15 -5 1
5 3 15 -3 15
Blank 1:
Blank 2:
Blank 3:
4.
(03.01 MC)
Which expression is equivalent to 56 + 21? (1 point)
7(49 + 14)
8(7 + 21)
8(48 + 13)
7(8 + 3)
Fill in the missing statements and reasons for the proof. Given ∠2 ≅ ∠3 proof ∠1 ≅ ∠4
The proof is given as follows:
∠1 ≅ ∠2 - Vertical Angles are ≅∠2 ≅ 3 - Given∠3 ≅4 - Vertical Angles are ≅Thus, ∠1 ≅ 4 Transitive properties.What are transitive properties?The transitive property argues that "if two quantities are equal to the third quantity, then we may claim that all the quantities are equal to one other".
The term transitive refers to a transfer. If there are three quantities a, b, and c, and if an is connected to b by some rule and b is related to c by the same method, then a and c are related to each other by the same rule; this property is known as the transitive property of equality.
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What is the equation of a parabola with a focus of (5,3) and a directrix of y=-3
Then Venn diagram shows sets shade (A n B) ‘U C’
The diagram of the required shaded region of the Venn representing the set of elements (A ∩ B)' ∪ C, created with MS Word, is attached.
What is a Venn diagram?A Venn diagram consists of circles or curved enclosures, representing sets, located in a universal set which is a rectangle.
The sdets shown in the Venn diagram = Set A, Set B, and Set C
The required region to be shaded in the Venn diagram = (A ∩ B)' ∪ C'
A ∩ B (A intersection B) is the set of elements common to both Set A and Set B
(A ∩ B)' (A intersection B) complement is the set of all elements which are not in the set of elements common to both Set A and Set B
(A ∩ B)' ∪ C (A intersection B) comliment union C; The set of elements not in the intersection of Set A and Set B, but contains the elements in Set C
(A ∩ B)' ∪ C' (A intersection B) comliment union C complement; The set of elements not in the intersection of Set A and Set B, but includes elements in the universal set, excluding all elements in the Set C.
The required shaded region is; A ∩ (B ∪ C)', B ∩ (A ∪ C)' and (A ∪ B ∪ C)'
Please find attached the diagram of the Venn diagram, created with MS Word, with the shaded region representing (A ∩ B)' ∪ C'
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On a coordinate plane, (negative 4, 6) is plotted.
Which ordered pair represents the reflection of the point (–4, 6) across both axes?
(4, 6)
(4, –6)
(–4, 6)
(–4, –6)
The reflection of the point (–4, 6) across both axes is (b) (4, -6)
How to determine the reflection of the point (–4, 6) across both axes?From the question, we have the following parameters that can be used in our computation:
Point = (-4, 6)
The rule of reflections across both axes is
(x, y) = (-x, -y)
Using the above as a guide, we have the following:
Image = (4, -6)
Hence, the reflection of the point (–4, 6) across both axes is (b) (4, -6)
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Please help my little brother!!!!
Answer:
H
Step-by-step explanation:
Answer:
H. 3.9
Step-by-step explanation:
5.6 - 1.7 = 3.9
An electrician earns $50 per hour, and expects to earn $5 additional per hour as each year passes. Find the electrician’s hourly wage after 8 years have elapsed.
What is the volume of the tri angular right prism?
Answer:
140 ft³
Step-by-step explanation:
imagine the prism is standing on one of its triangular sides.
then it becomes a regular object with the volume
base area × height
the base area is the area of the triangle
baseline × inner height / 2
in our case
4 × 7 / 2 = 14 ft²
so for the volume we have
14 × 10 = 140 ft³
1+9+40-40+40+10x2 equals what?
Answer:
70
Step-by-step explanation:
1+9+40-40+40+10*2
----------------------- 20
10+40-40+40+20
50 (-40+40 cancels out to 0) +20
50+20= 70
(Following PEMDAS)
Multiply, add, subtract.
if you were to instead go through it left to right, you would get 120, which is incorrect.
What is the measure of angle jnk?
The hourly wage, the number of hours and the number of days Jaxon works indicates that the amount Jaxon gets paid is $192
What is the formula for calculating hourly wage?The formula for hourly wage can be presented as follows;
Hourly wage = Total earnings/Total hours worked
The question in the link is presented as follows;
Jaxon gets paid $6 an hour. He works for 8 hours each day for four days. How much will Jaxon get paid
The amount Jaxon gets paid per hour (his hourly wage) = $6
The number of hours he works each day = 8 hours
The number of days Jaxon works = Four days
The amount Jaxin gets paid = Hourly wage × Hours per day × Number of days
Therefore we get;
Amount he gets paid = $6 per hour × 8 hours/day × 4 days = $192
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