Answer:
∠A+∠B+∠C =180°
∠A+∠C +90°=180°
∠A+∠C=90°
what are the coordinates of point B on AC such that the ratio of AB to BC is 2:3
The coordinates of point B on segment AC such that the ratio of AB to BC is 2 : 3 is (12 / 5, 38 / 5).
What are the coordinates of a point within a line segment?
In this problem we must use the concept of segment ratios and linear algebra operations to determine the location of a point within a line segment generated by two distinct points:
B(x, y) = A(x, y) + (AB / AC) · [C(x, y) - A(x, y)]
B(x, y) = (0, 4) + (2 / 5) · [(6, 13) - (0, 4)]
B(x, y) = (0, 4) + (2 / 5) · (6, 9)
B(x, y) = (0, 4) + (12 / 5, 18 / 5)
B(x, y) = (12 / 5, 38 / 5)
The coordinates of point B on segment AC such that the ratio of AB to BC is 2 : 3 is (12 / 5, 38 / 5).
RemarkThe statement is incomplete, complete form is shown below:
Given that A (x, y) = (0, 4) and C (x, y) = (6, 13). What are the coordinates of point B on AC such that the ratio of AB to BC is 2 : 3.
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aluminum production from bauxite ore costs $2000 per ton, whereas aluminum recycling costs $800 per ton. what is the percent saved by recycling?
Answer: 40%
Step-by-step explanation: $2000
If you turn the 2000 into 20 (for now) and the 800 into 8, then the 20 into 10, and the 8 into 4, then 4 out of 10 equals 40%.
1) Find the missing side.
Answer:
25inch
Step-by-step explanation:
Ok so there is something called a Pythagorean theorem.
It's a²+b²=c²
It works on right triangles
C is the longest side or the side not touching the right angle
and a and b is the other 2 sides
so the missing side is 24²+7²=Missing side or c²
24²=576 and 7²= 49
576+49=625
[tex]\sqrt{625}[/tex]=25
Write a congruence statement for the pair of triangles. Name the postulate it theorem that justifies your statement.
Answer:
B
Step-by-step explanation:
Rita discovered that a lab thermometer in her Chemistry class is not accurate. She created the table to show the relationship between x, the thermometer’s temperature reading, and y, the actual temperature. Which equation represents the relationship between x and y shown in the table?
A. y=x+1
B. y=-x
C. y=4x
D.y=x+4
Answer:
D. y=x+4Step-by-step explanation:
According to given table, we can see each line has relationship:
x - y = -4Convert this into equation of the line:
y = x + 4Correct choice is D
If two lines are parallel and they are defined by the equations, y=4x-5 and y=ax+2, what is the value of a?
Answer:
[tex]a=\dfrac{4x-7}{x}[/tex]
Step-by-step explanation:
The equations of lines are :
y=4x-5 and y=ax+2
From above equations,
4x-5 = ax+2
4x-ax = 5+2
4x-7 = ax
[tex]a=\dfrac{4x-7}{x}[/tex]
So, the value of a is equal to [tex]\dfrac{4x-7}{x}[/tex].
The library had 202 shelves of books. Each shelf had 14 books. Librarians checked out 907 books to students. How many books does the library have remaining? PLZ WORTH 25 POINTS
Answer:
1921 books remaining.
Step-by-step explanation:
This library is fairly organized, so each shelf only has 14 books. Now with 202 shelves, we multiple the shelves by the amount of books per shelf.
202x14=2,828
Now, with 2828 books in the library before being checked out, we need to find out how many books left after the students came.
2828-907=1,921
The answer is 1,921 books remaining.
Hope this helps!
3) Bella recorded data and used her graphing calculator to find the equation for
the line of best fit. She then used the correlation coefficient to determine the
strength of the linear fit. Which correlation coefficient represents the strongest
linear relationship?
-0.9
0.3
-0.5
0.8
Answer:
-0.9
Step-by-step explanation:
my guess
it's supposed to be the a number closest to 1 or-1
so
-0.9 is the closest number to 1 or -1
The answer to this question is:
0.8
What is line of best fit and correlation coefficient?
A straight line that best approximates the given set of data is known as a line of best fit. It is a line that, on a graph, roughly straddles the center of each scatter point. The association is stronger the closer the points are to the line of greatest fit.
The equation of a line of a best fit is represented as: y=mx + c
To gauge how closely two variables are related to one another, correlation coefficients are used.
Solution:
In order to determine how closely related two sets of data are, correlation coefficient formulas are used. The formulas provide a value in the range of -1 and 1, where
1 denotes a strongly positive association.A score of -1 indicates a very adverse association.A result of zero means there is absolutely no associationThe strength of the link between the variables increases with the distance between the coefficients of +1.0 and -1.0.
-0.9 is a value which is greater than -0.8, so the values which are greater than -0.8 are not considered as strong correlation coefficient.
Whereas the values which are less than 0.8 are also not considered as strong coefficients.
Hence 0.8 is the correlation coefficient which represents the strongest linear relationship.
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Can anyone tell me part B? What’s the 6th term!? Will mark brainliest!
Answer:
part b I'm pretty sure is 125, not 100 percent but I think so.
What is the area, in square meters, of the trapezoid below?
8.3 m
5.3 m
16.7 m
Drive a car at a rate of 40 miles per hour or drive a car at a rate of 50 feet per second? I need the calculations too and I don’t understand.
Answer: sin (330) csc (60) -4 cot (-45)
Step-by-step explanation:Im really sorry if this is wrong i am really sorry
Simplify: (6 + 2iX6 - 21)
If simplify it would be -15 + 12i
Answer:
If the X in the middle is shown as multiplication, then the answer is -15 + 12i
EQUATION: (6 + 2iX6 - 21)
STEP 1:
SPLIT UP THE COMMON FACTORS
a. 6 - 21 b. (2i X 6)STEP 2:
SOLVE AS SHOWN
a. 6 - 21 = -15 b. 12iSTEP 3:
ADD EVERYTHING TOGETHER
= -15 + 12iPlease help me asap!! Im in a rush
Answer:
its c
Step-by-step explanation:
just bc
the universal set = {-4, -3, -2, -1, 0 , 1, 2, 3, 4} and A = {0}. what is the complement of A?
The complement of a set are the set of elements in the universal set but not in the original set. The complement of set A is: [tex]A' = \{-4, -3, -2, -1, 1, 2, 3, 4\}[/tex]
Given that:
[tex]A =\{0\}[/tex]
[tex]U = \{-4, -3, -2, -1, 0 , 1, 2, 3, 4\}[/tex]
The complement of set A are the set of elements in the universal set but that are not in set A.
So, the complement of set A is:
[tex]A' = \{-4, -3, -2, -1, 1, 2, 3, 4\}[/tex]
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Help me please
Data Gathering techniques?????
A student council wants to know whether students would like the council to sponsor a mid-winter dance or a mid-winter carnival this year, Classify each sampling method and explain your classification. .
Convert the angle 5.5 radians to degrees, rounding to the nearest 10th.
Answer:
315.1*
Step-by-step explanation:
The value of 5.5 radians into degree is 315⁰.
What is radians?
The radian, denoted by the symbol rad, is the SI unit for measuring angles, and is the standard unit of angular measure used in many areas of mathematics.
Conversion of radian to degree = radian X 180⁰/π
Now,
Degree = 5.5 X 180⁰ X 7/22
= 6930/22
= 315⁰
Thus, the value of 5.5 radians into degree is 315⁰.
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help if correct will give brainiest
Answer:
x
Step-by-step explanation:
Answer:
the answer is Z all you have to do is move it left 4 times and then up 6 times
round to the nearest hundred
Answer:
round what
Step-by-step explanation:
find the area of the figure. use 3.14 for pi
Answer:
100
Step-by-step explanation:
14-12=2
10-6=4
4x2=8
divid it by 2 cos itza triangl
8/2=4
the smallr square
4x4=16
biggr square
10x8=80
4+16+80=100
Answer:
answer =100 ft²
Step-by-step explanation:
......hope it helps
Which unit rate is the lowest price per ounce?
Choice A: 6 ounces of chocolate chips for $2.49
Choice B: 8 ounces of chocolate chips for $3.32
Answer:
they are equal
Step-by-step explanation:
If you divide 2.49 by 6 you get .415 and you get the same if you do 3.32 by 8
Answer:
none there the same amount
Step-by-step explanation:
Karl is offered a simple interest rate of 5% at a local bank. He deposited $900.
Which statement is true?
Karl will earn $270 as an interest after 4 years.
Karl will earn $120 as an interest after 3 years.
Karl will earn $14 as an interest after 1 year.
Karl will earn $90 as an interest after 2 years.
Answer:
It may be helpful to organize the information by listing all four variables and filling in ... Find the simple interest earned after 3 years on $500 at an interest rate of 6%. ... Find the simple interest earned after 4 years on $800 at an interest rate of 5%. ... We will use the simple interest formula to find the principal.
Step-by-step explanation:
You have $39 in cash, composed of the largest bills possible. What is the probability that a randomly chosen bill from the $39 will not be a $1 bill?
a. 4/7
b. 1/2
c. 3/7
d. 4/8
Answer:
c) 3/7
Step-by-step explanation:
there are a total of 7 bills:
1 - $20
1 - $10
1 - $50
4- $1
P(not $1) = 3/7
Small boxes contain DVDs, and large boxes contain one gaming machine. Three boxes of gaming machines and a box of DVDs weigh 48 pounds. Three boxes of gaming machines and five boxes of DVDs weigh 72 pounds. How much does each box weigh?
Answer:
The weight of each gaming machine be 14 pounds and that of DVD is 6 pounds.
Step-by-step explanation:
Let the weight of the gaming machine be x and that of DVD be y. ATQ,
3x+y = 48 .....(1)
3x+5y = 72 .....(2)
Subtract equation (2) from (1)
3x+y-(3x+5y) = 48 -72
y-5y = -24
-4y = -24
y = 6
Put the value of y in equation (1).
3x+6 = 48
3x = 42
x = 14
So, the weight of each gaming machine be 14 pounds and that of DVD is 6 pounds.
Answer:
DVD box weighs 6 pounds and gaming machine box weighs 14 pounds
Step-by-step explanation:
i got the answer correct on my assignment
There about fifteen hundred players in the nfl in a survey of a random sample of 50 players three players were hurt how many players in the nfl would be excpected to get hurt
Answer: 90 players.
Step-by-step explanation:
Since we are informed that in a survey of a random sample of 50 players, 3 players were hurt. This gives a fraction of 3/50 for those that are hurt.
Therefore, in a survey of 1500 players, the number of players expected to be hurt will be:
= 3/50 × 1500
= 90
the exact volume is what?
Answer:
7680πyd³
Step-by-step explanation:
The formula to calculate the volume of the cylinder is πr² h
Here radius (r) = 16 yd
height (h) = 30 yd
Now
the volume is
= πr²h
= 16² * 30 * π
= 7680 π yd³
Hope it will help :)❤
Identify the angle of elevation.
PLEASE HELP ASAP
The angle of elevation always stands on ground level. So, angle 8 is the answer.
Which algebraic expression is equivalent to the expression below? 6x+15y A. 3(2x - 5y) B. 3(5x - 2y) C. 3(2x + 5y) D. 3(5x + 2y)
Answer:
C. 3(2x + 5y) is the algebraic expression equivalent to the expression
Step-by-step explanation:
From the question, the given expression is 6x + 15y.
Factorizing this expression gives 3(2x + 5y). Hence, the algebraic expression equivalent to the expression 6x + 15y is 3(2x + 5y). (Option C).
Checking the remaining options
A. 3(2x - 5y)
Expanding this gives 6x - 15y. It is not equivalent to the given expression
B. 3(5x - 2y)
Expanding this gives 15x - 6y. It is not equivalent to the given expression
D. 3(5x + 2y)
Expanding this gives 15x + 3y. It is not equivalent to the given expression.
Hence, C. 3(2x + 5y) is the algebraic expression equivalent to the expression.
Determine the equation of the circle graphed below.
Answer:
(x + 5)² + (y - 1)² = 4
Step-by-step explanation:
The equation of a circle in standard form is
(x - h)² + (y - k)² = r²
where (h, k) are the coordinates of the centre and r is the radius
Here (h, k ) = (- 5, 1) and r = 2, then
(x - (- 5))² + (y - 1)² = 2² , that is
(x + 5)² + (y - 1)² = 4
Answer:
Step-by-step explanation:
hello :
hello:
note : an equatin for the circle is : (x-a)²+(y-b)²=r²
when the center is the point : C(a , b) and the radius r
use this graph : given two points in this circle A(-3,1) and B(-7,1)
1) AB/2 = r = 4/2 = 2
2) the midipoint for the segment AB is the center C
a = (-3-7)/2 and b = (1+1)/2
a= -5 and b= 1 so : C(-5 , 1)
an equation is : (x+5)²+(y-1)²=2²
(dont mind the anime ) but ill give brainlist for the FIRST person to get it RIGHT it dont have to have summary just the numbers please and thank you
Answer:
I got 250.21 squared. Just tell me if I'm wrong.
Step-by-step explanation:
13.1 x 19.1 = 250.21
John went out to eat with his family. The bill was $84. His mom wants to
leave a 20% tip. What is the total his mom has to pay the restaurant?
Explain how you found your answer.
16.8
Step-by-step explanation:
multiply the normal price $84 by 20 then divide it by one hundred. So, the discount is equal to $16.8