Answers
Answer:
Obtuse and Isosceles
:) Apex
The triangle in the image can be classified as follows:
The correct options will be
Right [ F] : One of the angles is 90 degrees.
Isosceles [ D]: Two of the sides are equal (the two shorter sides).
We can see from the triangle that two of the angles measure 41 degrees each and the third angle is 98 degrees. The sum of the angles in a triangle is 180 degrees, and since 41 + 41 + 98 = 180, we know that the triangle is valid.
Right triangles can also be isosceles (in fact, there is a specific type of right triangle called a 45-45-90 triangle). So, this triangle qualifies for both classifications.
The triangle cannot be classified as:
Acute [ B]: Acute triangles have all angles less than 90 degrees.
Obtuse [ A]: Obtuse triangles have one angle greater than 90 degrees.
Equilateral [ E]: Equilateral triangles have all three sides equal.
The complete question is: Classify the following triangle.Check all that apply.
Related Questions
Solve the equation by completing the square. Round to the nearest hundredth if necessary. x^2 +9x - 14 =0
Answers
x^2 + 9x = 14
x^2 + 9x + 20.25 = 14 + 20.25
(x + 4.5)^2 = 34.25
x + 4.5 = (+-) sqrt 34.25
x = - 4.5 (+-) 5.85
x = -4.5 + 5.85 = 1.35 <=
x = -4.5 - 5.85 = -10.35 <=
How much is 5lbs to kg?
Answers
1 pound = 0.453592 kg
5 x 0.453592 = 2.26796 kg
round to 2.27 kg
A local theater has floor seating, balcony seating, and box seating. if the theater contains 2,500 seats with 425 seats in the balcony and 215 box seats, how many seats are on the floor?
Answers
Kate is constructing an equilateral triangle. She has already used her straightedge to construct the line segment shown.
A line segment with endpoints labeled as A and B.
What should Kate do for her next step?
Use the straightedge to draw a line that passes through point A.
Place the point of the compass on point A and draw an arc, using AB as the width for the opening of the compass.
Use the straightedge to draw another line segment that does not intersect AB¯¯¯¯¯.
Place the point of the compass on point A and draw an arc, using a width for the opening of the compass that is less than 12AB.
Answers
The next step that Kate should take in construction of an equilateral triangle after using a straight edge to construct the given line segment is;
Option B; Place the point of the compass on point A and draw an arc, using AB as the width for the opening of the compass.
This is about steps involved in constructing an equilateral triangle which means 3 equal sides.
First step; This first step entails drawing a line with the given measurement of the side of the equilateral triangle and label it ABSecond step; This step entails placing the point of the compass at point A and opening the leg to touch point B which means length AB will be the width to be used to draw an arc.Step 3; The same process in step 2 is carried out but this time the point of the compass will be placed at point B and opening the second leg to touch point A which means length AB will be the width to be used to draw an arc to intersect the other one drawn.Step 4; The point of intersection is now joined by a straight line to points A & B respectively.Thus, option B is the correct next step.
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HELP!
Solve −2(2x + 5) − 3 = −3(x − 1). (1 point)
−10
−16
16
−13
Solve 4(x + 1) = 4x + 4. (1 point)
1
All real numbers
0
No solution
Answers
-16
the second one is
all real numbers!!
i hope i helped :))
Answer:
all numbers are real
Step-by-step explanation:
Which shows the reflection of the figure over the line
Answers
Answer:
The answer appears to be A
Step-by-step explanation:If you redrew the answer backwards, the reflection would match the first one
Answer:
Step-by-step explanation:
PleAse help and show how you got it if you don’t mind
Answers
[tex]\bf \textit{surface area of a cube}\\\\ s=6x^2\quad \begin{cases} x=\textit{length of a side}\\ ---------\\ s=150 \end{cases}\implies 150=6x^2\implies \cfrac{150}{6}=x^2 \\\\\\ 25=x^2\implies \sqrt{25}=x\implies \boxed{5=x}[/tex]
3)
[tex]\bf \textit{volume of a square pyramid}\\\\ V=\cfrac{b^2h}{3}\quad \begin{cases} b=\textit{base's side}\\ h=height\\ -------\\ h=3\\ V=25 \end{cases}\implies 25=\cfrac{b^2\cdot 3}{3}\implies 25=b^2\cdot \cfrac{3}{3} \\\\\\ 25=b^2\cdot 1\implies 25=b^2\implies \sqrt{25}=b\implies \boxed{5=b}[/tex]
which set of ordered pairs in the form of x y does NOT represent a function of x?
A. {(1, 1.5), (2, 1.5), (3, 1.5), (4, 1.5)}
B. {(0, 1.5), (3, 2.5), (1, 3.3), (1, 4.5)}
C. {(1, 1.5), (-1, 1.5), (2, 2.5), (-2, 2.5)}
D. {(1, 1.5), (-1, -1.5), (2, 2.5), (-2, 2.5)}
Answers
-----------------------------------------
-----------------------------------------
A function is only possible if every x value leads to exactly one y value. Put another way, any input must have exactly one output. With choice B, we have (1,3.3) and (1,4.5). This tells us that the input x = 1 has two outputs y = 3.3 and y = 4.5 at the same time. This is why we do NOT have a function here.
If we graphed the set of points for choice B, the graph would fail the vertical line test.
A function is a relationship that maps elements from one set (the inputs) into elements of another set (the outputs). Such that each input can be mapped into only one output.
The correct option is B: {(0, 1.5), (3, 2.5), (1, 3.3), (1, 4.5)}
Using the general definition, to find which set of ordered pairs does not represent a function, we need to see in which set we have the same input (the first element of the ordered pair) assigned to two different outputs (the second element of the ordered pair).
Here the one that does not represent a function is option B:
{(0, 1.5), (3, 2.5), (1, 3.3), (1, 4.5)}
Because we have the input x = 1 assigned to two different outputs, y = 3.3 and y = 4.5
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Write the equation of the line perpendicular to the given line and passing through the given point: y=3x−2 through (3,4)
Answers
Answer:
all work is shown and pictured
Answer:
y= -1/3x+5
Step-by-step explanation:
Find all real and imaginary zeros for a polynomial function
Answers
A polynomial function is an algebraic expression with one or more terms. The real zeros can be found by setting the function equal to zero and solving for x. The imaginary zeros can be found using the complex conjugate theorem.
Explanation:A polynomial function is an algebraic expression that consists of one or more terms. The real zeros of a polynomial function are the values of x that make the function equal to zero. To find the real zeros, set the polynomial function equal to zero and solve for x using methods such as factoring, synthetic division, or the quadratic formula.
The imaginary zeros of a polynomial function are the values of x that make the function equal to a complex number. These can be found by using the complex conjugate theorem. If a + bi is a zero, then a - bi is also a zero, where a and b are real numbers and i is the imaginary unit, sqrt(-1).
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write "all horses drink water" as a conditional statement
Answers
A die is rolled twice. what is the probability of showing a 3 on both rolls?
Answers
The probability of showing a 3 on the second roll is 1/6.
Because the two rolls are independent events, the probability of showing a 3 on both rolls is
(1/6)*(1/6) = 1/36
Answer: 1/36
A rectangular garden measures 38m by 20m, to the nearest metre. Calculate the maximum possible area of the garden.
Answers
Find the value of x and y
x+4y=21, 4x-16=y
Answers
4x - y = 16 Multiply this by 4:-
16x - 4y = 64 ...................................(2)
Add (1) and (2):-
17x = 85
x = 5
Plug this into equation (1):-
5 + 4y = 21
4y = 16
y = 4
Answer is x = 5, y = 4.
[tex]Simplifying 4x + -16 = y Reorder the terms: -16 + 4x = y Solving -16 + 4x = y Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '16' to each side of the equation. -16 + 16 + 4x = 16 + y Combine like terms: -16 + 16 = 0 0 + 4x = 16 + y 4x = 16 + y Divide each side by '4'. x = 4 + 0.25y Simplifying x = 4 + 0.25y[/tex]
From a normally distributed population, a simple random sample of size 30 is taken. The mean of the sample is 144 and the standard deviation of the sample is 12.
Which interval is the 90% confidence interval for the population mean?
(139.7, 148.3)
142.4, 145.6)
143.3, 144.7)
140.4, 147.6)
Answers
The 90% confidence interval for the population mean mu is (140.4, 147.6)
--------------------------------------------------------------
--------------------------------------------------------------
Work Shown:
xbar = 144 (sample mean)
s = 12 (sample standard deviation)
n = 30 (sample size)
z = 1.645 (critical value at 90% confidence; use a calculator or table to compute this value)
The lower limit of the confidence interval is L, which is found by
L = xbar - z(s/sqrt(n))
L = 144 - 1.645(12/sqrt(30))
L = 140.395985571616
L = 140.4
Similarly the upper limit U is
U = xbar + z(s/sqrt(n))
U = 144 + 1.645(12/sqrt(30))
U = 147.604014428384
U = 147.6
The 90% confidence interval is therefore (L,U) = (140.4, 147.6)
The 90% confidence interval for the population mean is (140.4, 147.6), derived from a sample with a mean of 144 and a standard deviation of 12.
Let's break down the steps used to calculate the 90% confidence interval for the population mean:
- Sample mean ([tex]\bar{x}[/tex]): 144
- Sample standard deviation (s): 12
- Sample size (n): 30
- Critical value at 90% confidence (z): 1.645
The formula for the confidence interval is:
[tex]\[ (\bar{x} - z \cdot \frac{s}{\sqrt{n}}, \ \bar{x} + z \cdot \frac{s}{\sqrt{n}}) \][/tex]
Calculate the standard error (SE):
SE = s / sqrt(n)
SE = 12 / sqrt(30)
SE ≈ 2.188
Calculate the margin of error (ME):
ME = z * SE
ME = 1.645 * 2.188
ME ≈ 3.594
Calculate the lower limit (L):
L = [tex]\bar{x}[/tex] - ME
L = 144 - 3.594
L ≈ 140.406
Calculate the upper limit (U):
U = [tex]\bar{x}[/tex] + ME
U = 144 + 3.594
U ≈ 147.594
So, the 90% confidence interval for the population mean is approximately (140.406, 147.594), which rounds to (140.4, 147.6) when considering the appropriate level of precision. Therefore, the correct answer is (D) (140.4, 147.6).
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An isometry preserves distance.
True
False
Answers
I could be wrong.
In six years, Clem Kadiddlehopper will be five times as old as he was 26 years ago. How old is he now?
Answers
Mark draws one card from a standard deck of 52. he receives $ 0.45 for a club, $ 0.55 for an ace and $ 0.75 for the ace of clubs. how much should he pay for one draw?
Answers
Mark should pay $0.1692 for one draw.
To calculate how much Mark should pay for one draw, we need to find the expected value, which is the sum of the products of each outcome's probability and its associated value.
Calculate the probabilities:
Probability of drawing a club: [tex]\( \frac{13}{52} = \frac{1}{4} \)[/tex]
Probability of drawing an ace: [tex]\( \frac{4}{52} = \frac{1}{13} \)[/tex]
Probability of drawing the ace of clubs: [tex]\( \frac{1}{52} \)[/tex]
Calculate the expected values:
Club: [tex]\( 0.45 \times \frac{1}{4} = 0.1125 \)[/tex]
Ace: [tex]\( 0.55 \times \frac{1}{13} = 0.0423 \)[/tex]
Ace of clubs: [tex]\( 0.75 \times \frac{1}{52} = 0.0144 \)[/tex]
Sum the expected values:
[tex]\( 0.1125 + 0.0423 + 0.0144 = 0.1692 \)[/tex]
Thus, Mark should pay $0.1692 for one draw.
Which of the following is a solution to the inequality y > –2x + 6? a.(4, 4) b.(0, 0) c.(1, 1) d.(2, 2)
Answers
B. 0 is greater than -2(0) + 6 = 6
That statement is untrue.
C. 1 is greater than -2(1) + 6 = 4
That statement is untrue.
D. 2 is greater than -2(2) + 6 = 2
That statement is untrue.
The answer is A since after you plug in 4 for x and y, the statement 4 > -2 is true. 4 IS greater than -2.
The correct answer is a.(4, 4) because when you substitute x = 4 and y = 4 into the inequality y > -2x + 6, the inequality holds true, indicating that (4, 4) is a solution.
To determine which of the given points is a solution to the inequality y >
-2x + 6, we substitute the x and y values of each point into the inequality and check if the inequality holds true.
(-2)(4) + 6, which simplifies to 4 > -8 + 6 or 4 > -2, so point (4, 4) is a solution to the inequality.For point (0, 0), substitute x = 0 and y = 0 into the inequality: 0 > (-2)(0) + 6, which simplifies to 0 > 6, which is not true, so (0, 0) is not a solution.For point (1, 1), substitute x = 1 and y = 1 into the inequality: 1 > (-2)(1) + 6, which simplifies to 1 > -2 + 6 or 1 > 4, which is not true, so (1, 1) is not a solution.For point (2, 2), substitute x = 2 and y = 2 into the inequality: 2 > (-2)(2) + 6, which simplifies to 2 > -4 + 6 or 2 > 2, which is not true, so (2, 2) is not a solution.
Therefore, the correct answer is a.(4, 4), since it is the only point that satisfies the inequality y > -2x + 6.
help me solve this???
3p - 1 = 5(p - 1) - 2(7 - 2p)
Answers
[tex]3p - 1 = 5(p-1)-2(7-2p) Use the distributive property 3p - 1= (5)(p)+(5)(-1)+(-2)(7)+(-2)(-2p) 3p - 1 = 5p - 5 - 14 + 4p 3p - 1= 9p - 19 3p - 9p =-19 + 1 -6p = 18 Divide both sides by -6 -6p/-6 = -18/-6 p = 3 Best of luck with your studies! [/tex]
Can someone check this for me? Thanks.
(b) Suppose it is also known that AD ≅ CD. Which postulate or theorem can be used to prove that ΔABD ≅ ΔCBD?
I'm guessing it's the SAS congruence postulate but I'm not very good at this so I'm not sure.
Answers
AD = CD (given)
BD = BD (common side )
but since it didn't say AC丄BD
it's no way to prove the angels r 90° :/
but as it already given AD= CD
so it's proven that it's an isosceles triangle
therefore
∠BAD = ∠BCD (base ∠s isos. ∆)
therefore it's SAS (side angel side)
Beliefs to the left of center emphasize the need for
Answers
If only one number in a fraction is negative,does that mean the whole fraction is negative
Answers
A theorem is a statement that can be easily prove using a corollary
Answers
⇒A theorem is a statement that can be easily prove using a corollary
False Statement
Corollary Means , a Theorem written in another way , when it has been proved.
For Example:The Sum of Angles of Triangle is 180°.-----Theorem
Corollary→If three distinct rays intersect at three points , and sum of interior Angles formed at their point of Intersection is 180°, then it is a Triangle.
Correct Statement will be:
A theorem is a statement that can be easily proved using an Axiom or Postulate.
Which ordered pairs in the form (x, y)(x, y) are solutions to the equation
7x−5y=287x−5y=28 ?
Select each correct answer.
(4, 10)(4, 10)
(−1, −7)(−1, −7)
(7, 9)(7, 9)
(−6, −14)
Answers
(−6, −14)(−1, −7)
are the answers
hey! are you in 8th grade K12? if so you should join my study group on skype! if you are interested just say the word and ill send you a invite! and if you cant get skype then we can use "discord", which you can use on a web browser!
and if you know anyone who can join please direct me to them if you can :3
What is the measure of each interior angle of a regular 10 sided polygon?
Answers
180*(10-2)=180*8=1440 degree
now get the degree of one angle 1440/10=144 degree
the answer is 144 degrees.
It takes to sell A three hours to produce two cells.If you start with cell A,how many cells will you have in 24 hours
Answers
In 24 hours, you will have 48 cells if you start with cell A and keep making cells at the same rate.
If it takes three hours to produce two cells, we can calculate the production rate as follows:
Production rate of A = 2 cells / 3 hours
Now, we want to find out how many cells will be produced in 24 hours:
Number of cells produced in 24 hours = Production rate of A × Number of hours
Number of cells produced in 24 hours = (2 cells / 3 hours) × 24 hours
Number of cells produced in 24 hours = 2 cells/hour × 24 hours
Number of cells produced in 24 hours = 48 cells
Therefore, if you start with cell A and continue producing at the same rate, you will have 48 cells in 24 hours.
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A line passes through (−1,−6) and (7,2) .Find the slope-intercept form of the equation of the line. Then fill in the value of the slope, m, and the value of the y-intercept, b, below.
Answers
y intercept = -5
The equation of the line passing through the points (- 1, -6) and (7, 2) will be → y = x - 5. The slope will be [m] = 1 and the y - intercept will be -5.
What is the slope intercept form of a straight line?The slope intercept of a straight line is -
y = mx + c
Where -
[m] is the slope of the line.
[c] is the y - intercept.
Given is a straight line passing through the points (- 1, -6) and (7, 2)
We have a straight line that passes through the coordinates as follows -
(- 1, -6)
(7, 2)
The slope of the line can be calculated using the formula -
m = (y₂ - y₁)/(x₂ - x₁)
m = (2 + 6)/(8)
m = 8/8
m = 1
The line is passing through the point (7, 2). We can write -
y = mx + c
y = x + c [m = 1]
2 = 7 + c
c = 2 - 7
c = -5
The equation of the straight line will be -
y = x - 5
Now, the slope of the line will be [m] = 1 and the y - intercept will be -5.
Therefore, the equation of the line passing through the points (- 1, -6) and (7, 2) will be → y = x - 5. The slope will be [m] = 1 and the y - intercept will be -5.
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if 120 marks is 60% what is full marks
Answers
[tex]\bf \begin{array}{ccll} marks&\%\\ \text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\ x&100\\ 120&60 \end{array}\implies \cfrac{x}{120}=\cfrac{100}{60}\implies x=\cfrac{120\cdot 100}{60}[/tex]
What does the triangle exterior angle theorem make sense based on the triangle sum theorem??