Answer:
Yes, the right angle is angle B
Step-by-step explanation:
we have
[tex]A(-2, 3), B(-3,-6),C(2,-1)[/tex]
Plot the vertices
see the attached figure
we know that
If triangle ABC is a right triangle
then
Applying the Pythagoras Theorem
[tex]AB^{2} =AC^{2}+BC^{2}[/tex]
the formula to calculate the distance between two points is equal to
[tex]d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}[/tex]
Find the distance AB
[tex]A(-2, 3), B(-3,-6)[/tex]
substitute in the formula
[tex]d=\sqrt{(-6-3)^{2}+(-3+2)^{2}}[/tex]
[tex]d=\sqrt{(-9)^{2}+(-1)^{2}}[/tex]
[tex]AB=\sqrt{82}\ units[/tex]
Find the distance BC
[tex]B(-3,-6),C(2,-1)[/tex]
substitute in the formula
[tex]d=\sqrt{(-1+6)^{2}+(2+3)^{2}}[/tex]
[tex]d=\sqrt{(5)^{2}+(5)^{2}}[/tex]
[tex]BC=\sqrt{50}\ units[/tex]
Find the distance AC
[tex]A(-2, 3),C(2,-1)[/tex]
substitute in the formula
[tex]d=\sqrt{(-1-3)^{2}+(2+2)^{2}}[/tex]
[tex]d=\sqrt{(-4)^{2}+(4)^{2}}[/tex]
[tex]AC=\sqrt{32}\ units[/tex]
Verify the Pythagoras theorem
[tex](\sqrt{82})^{2} =(\sqrt{32})^{2}+(\sqrt{50})^{2}[/tex]
[tex]82=82[/tex] ---> is true
therefore
Is a right triangle and the right angle is B
Pip and Sara win some money and share it in the ratio 5:4. Pip gets £50. How much did they win in total?
Answer:
90
Step-by-step explanation:
Write the ratio this way
Pip: Sara: Total
5 : 4 : 9
We multiply each by 10 to get Pip to 50 (5*10 = 50)
5*10: 4*10: 9*10
50 : 40 : 90
Answer:
$90
Step-by-step explanation:
Given that the ratio of Pip: Sara is 5:4
This means :
Pip gets 5 parts
Sara gets 4 parts
Together they have 5 + 4 parts = 9 parts
Also given that Pip's 5 parts is equivalent to $50
Hence each 1 part is $50/5 = $10
if 1 part = $10
The total 9 parts = 9 x $10 = $90
Classify the following triangle based on its angle measures.
A) Obtuse
B)Acute
C)right
D)equiangular
Answer:
A) Obtuse
Step-by-step explanation:
It is Obtuse due to the angle 115° being in the Triangle. This rules out Acute since the middle angle is not less than 90°. It is not Equiangular since all three angles are not equal. Furthermore it is not a right triangle either since there is no 90° angles. Making it Obtuse.
To classify a triangle based on angle measures, we need to know the specific angles. Triangles can be obtuse, acute, right, or equiangular, and each type has its own unique properties used in various applications across different fields.
Explanation:To classify the following triangle based on its angle measures, we must first understand the definitions of different types of triangles. A triangle can be classified as:
Obtuse: One angle is greater than 90 degrees.Acute: All angles are less than 90 degrees.Right: One angle is exactly 90 degrees.Equiangular: All angles are equal, and each measure 60 degrees since the sum of the angles in any triangle is 180 degrees.Considering these definitions, the seeking student must provide the angle measures of their specific triangle to accurately classify it.
Why Make These Distinctions?Making distinctions between different types of triangles is crucial because each classification has unique properties that are important in various fields such as mathematics, engineering, architecture, and physics. These properties assist in solving problems and understanding the world around us.
For instance, an obtuse triangle may be used in special construction scenarios, while right triangles are essential in trigonometry and geometry, appearing frequently in real-life applications like building and navigation.
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What is the solution for in (3x-5)=in11+2?
a. x=8
b. x=9
c. x=-3
d. x=7
Answer:
x = 3.133
Step-by-step explanation:
I'm going to take a chance and assume that you meant "ln 11," not "in11."
If I'm right, then we have:
3x-5 = ln 11 + 2.
Adding 5 to both sides yields
3x = ln 11 + 2 + 5, or ln 11 + 7. Since ln 11 = 2.398,
3x = 2.398 + 7, or 3x = 9.398, and so
x = 3.133.
If this is not what you expected, please ensure that you have copied down the original problem accurately. Thank you.
HELP ASAP TEST IS OMOST OVER!!!!!!!!!!
John is putting a fence around his garden that is shaped like a half circle and a rectangle.
How much fencing will John need? Use 22/7 for pie
A)32 ft
B)39 ft
C)46 ft
D)57 ft
Answer: C)46 ft
Step-by-step explanation:
We know that the circumference of a circle can be calculated with this formula:
[tex]C=2\pi r[/tex]
Where "r" is the radius of the circle.
Since John is putting a fence around his garden that is shaped like a half circle and a rectangle, then we can find how much fencing he needs by making this addition:
[tex]Fencing=\frac{2\pi r}{2}+2l+w[/tex]
Where "l" is the lenght of the rectangle and "w" is the width of the rectangle.
Since we know that the radius of the circle is half its diameter, we can find "r". This is:
[tex]r=\frac{7ft}{2}=3.5ft[/tex]
Then, substituting values (and using [tex]\pi=\frac{22}{7}[/tex]), we get:
[tex]Fencing=\frac{2(\frac{22}{7})(3.5ft)}{2}+2(14ft)+7ft=46ft[/tex]
The answer is C) 46ft
How do you convert 3.16 (6 repeating) to a fraction?
Suppose [tex]x=3.1\overline6[/tex]. Then [tex]10x=31.\overline6[/tex], and [tex]100x=316.\overline6[/tex].
Now,
[tex]100x-10x=316.\overline6-31.\overline6=316-31[/tex]
[tex]\implies90x=285[/tex]
[tex]\implies x=\dfrac{285}{90}=\boxed{\dfrac{19}6}[/tex]
A rectangular prism has a length of 2 1/4 feet, a width of 6 feet, and a height of 3 1/2 feet.
What is the volume of the prism?
Enter your answer in the box.
ft³
For this case we have by definition, that the area of a rectangular prism is given by:
[tex]V = A_ {b} * h[/tex]
Where:
[tex]A_ {b}:[/tex] is the area of the base
h: It's the height
Before finding[tex]A_ {b}[/tex]we convert the mixed numbers to fractions:
length: [tex]2 \frac {1} {4} = \frac {4 * 2 + 1} {4} = \frac {9} {4}[/tex]
width: 6
Height:[tex]3 \frac {1} {2} = \frac {2 * 3 + 1} {2} = \frac {7} {2}[/tex]
So, we have to:[tex]A_ {b} = \frac {9} {4} * 6 = \frac {54} {4} = 13.5[/tex]
Finally, the volume is given by:
[tex]V = 13.5 * \frac {7} {2} =47.25\ ft ^ 3[/tex]
Answer:
[tex]47.25 \ ft ^ 3[/tex]
ANSWER
[tex]Volume = 47\frac{1}{4} {ft}^{3} [/tex]
EXPLANATION
The formula for calculating the volume of a rectangular prism is
[tex]Volume = l \times b \times h[/tex]
Where
[tex]l = 2 \frac{1}{4} ft[/tex]
is the length of the rectangular box,
[tex]w = 6ft[/tex]
is the width and
[tex]h = 3 \frac{1}{2} ft[/tex]
is the height of the rectangular prism.
We plug in the given dimensions into the formula to get:
[tex]Volume = 2 \frac{1}{4} \times 6 \times 3 \frac{1}{2} [/tex]
Convert the mixed numbers to improper fraction to get:
[tex]Volume = \frac{9}{4} \times 6 \times \frac{7}{2} [/tex]
Multiply out to get
[tex]Volume = \frac{189}{4} {ft}^{3} [/tex]
Or
[tex]Volume = 47\frac{1}{4} {ft}^{3} [/tex]
Which is equivalent
For this case we must find an expression equivalent to:
[tex]\sqrt [5] {13 ^ 3}[/tex]
By definition of properties of powers and roots we have:
[tex]\sqrt [n] {a ^ m} = a ^ {\frac {m} {n}}[/tex]
Then, rewriting the expression:
[tex]13 ^ {\frac {3} {5}}[/tex]
Answer:
Option D
[tex]13 ^ {\frac {3} {5}}[/tex]
which is the graph of g(x)=[x+3]?
The graph of the equation y = x + 3 is a straight line with a slope of 1 and a y-intercept of 3. This means that for every increase of 1 in x, y increases by 1 and the line crosses the y-axis at y = 3.
Explanation:
The student is asking for the graph of the function g(x)=[x+3]. Please note, the symbol '[' and ']' is usually used to denote the greatest integer function or floor function, but since the context is not very clear, I'll assume that this is a simple linear function y = x + 3.
In such case, the graph of y = x + 3 is a **straight line** with a **slope** of 1 and a y-**intercept** of 3. Remember, the ^ slope is the change in y for every increase of 1 in x, and in this equation, for every increase of 1 in x, y increases by 1 . The intercept is simply where the line crosses the y-axis, and in this case it's at y = 3.
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A science test, which is worth 100 points, consists of 24 questions. Each question is worth either 3 points or 5 points. If x is the number of 3-point questions and y is the number of 5-point questions, the system shown represents this situation.
x + y = 24
3x + 5y = 100
What does the solution of this system indicate about the questions on the test?
The test contains 4 three-point questions and 20 five-point questions.
The test contains 10 three-point questions and 14 five-point questions.
The test contains 14 three-point questions and 10 five-point questions.
The test contains 20 three-point questions and 8 five-point questions.
Answer:
The test contains 10 three-point questions and 14 five-point questions
Step-by-step explanation:
Given equations are:
[tex]x+y = 24\\and\\3x+5y=100[/tex]
From 2nd equation we can deduce that x represents number of 3-point questions and y represents number of 5-point questions.
Using the substitution method:
From x+y = 24
y= 24-x
Putting this valu of y in 3x+5y=100
[tex]3x+5(24-x) = 100\\3x + 120 - 5x = 100\\-2x+120=100\\-2x = 100-120\\-2x = -20\\\frac{-2x}{-2} = \frac{-20}{-2}\\ x = 10\\Putting\ the\ value\ of\ x\ in\ x+y=24\\10+y=24\\y = 24-10\\y = 14[/tex]
Hence, the correct answer is:
The test contains 10 three-point questions and 14 five-point questions..
Does every line have a slope and a Y intercept
Answer:
Yes
Every straight line can be represented by an equation: y = mx + b.
m=slope
b=y-intercept
(www.math.com/school/subject2/lessons/S2U4L2GL.html)
Factor.
8x2y2 – 4x2y – 12xy
4(8x2y2 – x – 12xy)
4(2xy – 4x2y – 12xy)
4x2y2(2xy – xy –3)
4xy(2xy – x – 3)
Answer:
4xy[2xy - x - 3]
Step-by-step explanation:
When finding the Greatest Common Factor [GCF], along with the coefficient, you have to factor out the least degree term possible, which in this case is 4xy. This is because although all terms have y and x, their degrees are not all similar, so we have to go with 4xy.
please help... I really need this.
Answer:
[tex]\frac{4x^3-3x^2+5x+6}{x+6}=4x^2-27x+167-\frac{996}{x+6}[/tex]
Step-by-step explanation:
The division problem given to us is [tex](4x^3-3x^2+5x+6)\div (x+6)[/tex].
To perform the synthetic division, we write out the coefficient of the polynomial. We set the linear factor to zero and solve for x, this becomes our divisor. That is [tex]x+6=0\implies x=-6[/tex].
We carry out the synthetic division as shown in the attachment.
The result of the synthetic division is 4 -27 167 -996
The first three terms are the coefficients of the quotient and the last term is the remainder.
Therefore the quotient is [tex]q(x)=4x^2-27x+167[/tex] and the remainder is [tex]r(x)=-996[/tex].
The dividend, the quotient and the divisor are written as
[tex]\frac{4x^3-3x^2+5x+6}{x+6}=4x^2-27x+167-\frac{996}{x+6}[/tex]
The correct answer is A
The graphs below are both quadratic functions. The equation of the red graph is
x)= x. Which of these is the equation of the blue graph, g(x)?
Answer:
D. [tex]g(x)=\frac{1}{5}x^2[/tex]
Step-by-step explanation:
The equation of the red quadratic graph is [tex]f(x)=x^2[/tex].This is the parent quadratic function or the base of the quadratic functions.This red quadratic graph has been dilated by a certain scale factor to obtain the blue graph. Recall that, when the scale factor is a fraction, such that [tex]0\:<\:k\:<\:1[/tex] the graph is stretched horizontally.The dilated graph then becomes wider than the parent function.From the given function equations, the possible value of k can only be [tex]k=\frac{1}{5}[/tex].Therefore the blue graph has equation: [tex]g(x)=\frac{1}{5}x^2[/tex]The correct answer is D.When is g(x) = 0 for the function g(x) = 5.23x + 4?
Answer:
g(x)=4
Step-by-step explanation:
5.23(0)+4=4
Hope this helps!
Which formula can be used to describe the sequence
-3, 3/5, -3/25, 3/125, -3/625
Answer:
a(n) = -3(-1/5)^(n - 1)
Step-by-step explanation:
From the first term, -3, we get the second term, 3/5, by multiplying -3 by -1/5.
Thus, the common ratio is -1/5.
The general formula in this case is a(n)=(first term)(common ratio)^(n - 1), or
a(n) = -3(-1/5)^(n - 1)
PLEASE HELP ANSWER ASAP first to answer correctly gets brainly
What is the missing fraction?
1/6 + ? = 11/18
A) 10/6
B) 4/9
C) 2/3
D) 10/18
Answer: B is the answer
Step-by-step explanation:
Just subtract 1/6 from 11/18 to get the answer!
4.
Find the geometric mean of 4 and 12.
24
8
The geometric mean of two numbers is the square root of their product.
sqrt{4 • 12}
sqrt{48}
sqrt{16} •sqrt{3}
4•sqrt{3}.
The geometric mean of 4 and 12 is
4•sqrt{3}.
The turning point of the curve: y=6-4x-x^2
Answer:
The turning point is (-2,10)
Step-by-step explanation:
we have
[tex]y=6-4x-x^{2}[/tex]
This is a quadratic equation (vertical parabola) open downward
we know that
The turning point of a quadratic equation is the vertex
so
Convert the quadratic equation into vertex form
[tex]y-6=-4x-x^{2}[/tex]
[tex]y-6=-(x^{2}+4x)[/tex]
[tex]y-6-4=-(x^{2}+4x+4)[/tex]
[tex]y-10=-(x^{2}+4x+4)[/tex]
[tex]y-10=-(x+2)^{2}[/tex]
[tex]y=-(x+2)^{2}+10[/tex] ----> equation in vertex form
The vertex is the point (-2,10)
therefore
The turning point is (-2,10)
The turning point of the parabola described by the equation y=6-4x-x^2 is at the point (-2, 10), which is a maximum since the parabola opens downwards.
Explanation:To find the turning point of the curve given by the equation y=6-4x-x^2, we first need to rewrite the equation in the form of the vertex of a parabola, which is given by y=a(x-h)^2+k, where (h,k) is the coordinate of the turning point or vertex. Noting that there is a mistake in the information provided since the second derivative would actually be y" = -2, and not 6x - 12, indicating that we have a concave down parabola with a maximum point, not a point of inflection. We can complete the square to rewrite the function in vertex form.
Start by completing the square: y = -x^2 - 4x + 6 can be rewritten as y = -(x^2 + 4x) + 6. Adding and subtracting 4 inside the parenthesis (which is the square of half the coefficient of x), we get y = -(x^2 + 4x + 4 - 4) + 6, which simplifies to y = -(x + 2)^2 + 10. Thus, the vertex or turning point is at (-2, 10).
This shows the turning point of the parabola is at the point (-2, 10), which is a maximum since the parabola opens downwards as reflected by the negative coefficient of the x^2 term. This can be visualized on the graph of the function as the highest point on the curve. Remember that a quadratic equation represents a parabola in a Cartesian coordinate system.
Assume the two lines ab and xy intersect as in the diagram below. which of the following statements are true. Check all that Apply.
Answer:
A, B, and D are the correct statements.
79+(-42 divide 6)- -24 the answer is 96 show me how u got it
79+(-42/6)-(-24)
first use -42 divide by 6
79 + (-7) - (-24)
then open all the parentheses
79 - 7 + 24
and use 79 minus 7
72 +24
add them together
96
That's how to get it.
Answer:
Step-by-step explanation:
79+(-42 divide 6)- -24
The first step is division
79+(-7)- -24
Then we add and subtract from left to right
72 --24
72+24
96
Solve for U
U- 4.5=6.46
Answer:
Step-by-step explanation:
U-4.5=6.46
+4.5 +4.5
U=10.96
Thanks, to everyone asking questions and giving answers. I finished my adult diploma today and a lot of it came from all of your help. The first two people to comment ANYTHING can have all of my remaining points, and may they get you to where you need to be. I will post more than one of these to distribute my points accordingly.
Brainliest to whoever has the best joke.
Answer:
congrats
Step-by-step explanation:
Say your car doesn’t run on straight gasoline and you have to mix the oil with gas together in a specific ratio of 2.4 fl oz of oil for every gallon of gasoline. If you have 1.5 gallons of gas, how much oil should you add?
Answer:
3.6 fl oz
Step- by-step explanation:
Well if one gallon equal 2.4 fl oz that would mean that half of a gallon would be half of that amount. Half of that amount would be 1.2 fl oz. we have now found how much a full gallon needs and how much half a gallon need. Now we add these 2 numbers. 2.4 fl oz + 1.2 fl oz = 3.6 fl oz.
Please give me Brainliest.
Final answer:
To get the correct oil mix for 1.5 gallons of gasoline at a ratio of 2.4 fl oz of oil per gallon, you should add 3.6 fl oz of oil.
Explanation:
To calculate the amount of oil needed for 1.5 gallons of gasoline with a mix ratio of 2.4 fl oz of oil per gallon, you follow these steps:
Determine the amount of oil needed for one gallon of gas, which is 2.4 fl oz.
Multiply this amount by the total gallons of gas. In this case, 2.4 fl oz x 1.5 gallons.
The calculation will be 2.4 fl oz/gallon x 1.5 gallons = 3.6 fl oz of oil.
Therefore, you should add 3.6 fl oz of oil to 1.5 gallons of gasoline to achieve the correct mix ratio.
The area of a triangle is 40 cm2. The height of the triangle is 4 cm. What is the measure of the base of the triangle?
A.
40 cm
B. 32 cm
C. 28 cm
D. 20 cm
Answer:
Step-by-step explanation:
Givens
Height = h = 4cm
b = ?
Area = 40 cm^2
Formula
Area = 1/2 * h * b
Solution
40 cm^2 = 1/2 * 4 * b Combine the right
40 cm^2 = 2 * b Divide by 2
40 cm^2 /2 = 2b/2 Do the division
20 cm = b
Answer D
Each leg of a 45°-45°-90° triangle measures 12 cm.
What is the length of the hypotenuse?
4
45°
45°
6 cm
62 cm
12 cm
12 cm
12 cm
12V3 cm
Answer:
12 sqrt(2)
Step-by-step explanation:
Givens
a = 12 cm
b = 12 cm
c = ??
The triangle is isosceles with 1 right angle and 2 45 degree angles.
Formula
c^2 = a^2 + b^2
c^2 = 12^2 + 12^2
c^2 = 144 + 144
c^2 = 288
c^2 = 144 * 2
c = sqrt(144) * sqrt(2)
c = 12 * sqrt(2)
The answer isn't there. 12*sqrt(2) is the correct answer, 12sqrt(3).
Was this just a typo of some kind.
the system of equatios is solved using the linear combination method
1/2x4y=8 -2(1/2x+4y=8) -x-8y=-16
3x+24y - 12 1/3(3x+24y= 12) x+8y=4
0=-12
what does 0 = -12 mean regarding the solution to the system?
Answer: There are no solutions to the system because the equations represent parallel lines.
The value 0 = -12 indicates an inconsistent system with no solution.
0 = -12 means that the system of equations is inconsistent, and there is no solution. In this case, the equations represent parallel lines that never intersect, hence no common solution exists.
Which graph represents the linear function below? y-4= (4/3)(x-2)
Answer:
The graph in the attached figure
Step-by-step explanation:
we have
[tex]y-4=(4/3)(x-2)[/tex]
This is the equation of a line into point slope form
The point is (2.4)
The slope is m=4/3
To plot the line find the intercepts
The y-intercept is the value of y when the value of x is equal to zero
For x=0
y-4=(4/3)(0-2)
y=(-8/3)+4
y=4/3
The x-intercept is the value of x when the value of y is equal to zero
0-4=(4/3)(x-2)
-4=(4/3)x-(8/3)
Multiply by 3 both sides
-12=4x-8
4x=8-12
x=-1
we have the points
(2,4), (0,4/3),(-1,0)
Plot the line
Note With only two points it was necessary to draw the line. The third point was calculated for didactic purposes.
see the attached figure
Write the equation of the line that has a y-value that increases by 4 for every x that increases by 1. It also crosses the y-axis at –2. A. y = 4x – 2 B. y1/4x – 2 C. y = 2x + 1/4D. y = 2x – 4
ANSWER
[tex]y = 4x - 2[/tex]
EXPLANATION
The equation of a straight line can be found using the formula
[tex]y =mx + b[/tex]
We have that,the y-value increases by 4 for every x that increases by 1.
This implies that, the slope is
[tex]m = \frac{4}{1} = 4[/tex]
The line also crosses the y-axis at –2.
Hence the y-intercept is b=-2.
Therefore the equation is
[tex]y = 4x - 2[/tex]
The correct answer is A
the number of lattes sold daily for two coffee shops is shown in the table: Lattes 12 52 57 33 51 15 46 45 Based on the data, what is the difference between the median of the data, including the possible outlier(s) and excluding the possible outlier(s)?
A. 48.5
B. 23
C. 8.4
D. 3
Answer:
Option 4 (3)
Step-by-step explanation:
The first step involved in calculating the median it to list the observations in the ascending order. This gives:
12 15 33 45 46 51 52 57.
The second step is to identify the middle number (in case the observations are in odd numbers) or numbers (in case the observations are in even numbers) after the ascending order step has been done. It can be observed that the middle numbers in this data set are 45 and 46. Since there are two numbers, so their average will be the median of this data set. Therefore, the median is 45.5.
It can be observed that that there are 2 outliers in the data set: 12 and 15. Once removed, the data set will be:
33 45 46 51 52 57.
The middle numbers are 46 and 51 and the mean of the two middle numbers is 48.5.
Therefore, the difference between the median of the data, including the possible outliers and excluding the possible outliers is given by 48.5 - 45.5 = 3. Therefore, Option 4 is the correct answer!!!
Which variable is most important to the following problem?
Evan and Josh play on a basketball team. Evan played the whole first quarter
and the first 4 minutes of the second quarter. Josh played the rest of the
second quarter and all of the third quarter. Evan played the whole fourth
quarter. If each quarter is 10 minutes long, how long did Evan play?
A. the number of minutes Josh played in the fourth quarter
B. the number of players on the team
C. the number of minutes Evan played
D. the number of times Evan was substituted into the game
Answer:
C.
Step-by-step explanation:
Add up the number of minutes Evan played. you can ignore the number of minutes Josh played, the number of players in the team and the number of times Evan was substituted.
Answer:
The number of minutes Evan played.
Step-by-step explanation:
The most important variable is : The number of minutes Evan played.
As at the end we have to find out how long did Evan play. And to get the answer, we have to consider Evan's play time in each quarter.
By adding all those numbers, we will get the answer.
Hence, option C is correct.