Answers
Answer:
(1/2) {ad - cb} both expressions
Step-by-step explanation:
Notice that the area of the triangle in question can be calculated as the area of the larger right angle triangle OSQ MINUS the area of the smaller right angle triangle OPR, and MINUS the area of the trapezoid RSQP.
Given the coordinates of the given points, the formulas for area of triangles and of trapezoid, we have the following area subtractions:
1/2 (a + c) (b +d) - 1/2 a* b - 1/2 c (b + b + d)=
= (1/2) { ab + ad + cb + cd - ab - 2 cb -cd } =
= (1/2) {ad - cb}
On the other hand the matrix expression is giving you 1/2 of the determinant of the given matrix such determinant is: ad - cb
Then we see that the equality is correct since (1/2) of the determinant is also :
(1/2) {ad - cb}
Related Questions
Scarlet is buying a watch that cost 49$ Is sales tax are 6% how much will be added to the cost of the watch?
Answers
Answer:
$51.94
Step-by-step explanation:
Basically just take 6% of 49 and at it up to get your final answer!
Answer:
$51.94
Step-by-step explanation:
49* 1.06= $51.94
a que numero mixto corresponde la fraccion 7/2
Answers
Answer:
3 & 1/2
Step-by-step explanation:
2•3=6
7-6
1/2
3 whole number
3 & 1/2
help plsssss ill mark brainliest
Answers
Answer:
A = 38.5
Step-by-step explanation:
dude someone help asap it’s 20 points
Triangle MNO on a coordinate
plane is reflected across the y-axis
to create Triangle M'NO'. Which one
of the following rules describes
this transformation?
(x, y) (-X, Y)
(x, y) (x. -Y)
(xy) -(-y.x)
(x, y) (y.-x)
Answers
Answer:
I think the answer is b or c
Step-by-step explanation:
please dont come at me if they are wrong
6.1 Write Linear Equations in Slope-Intercept Form
APPLICATION
Directions: Find the equation of the line for each situation.
1)
2) (0, -2) and (1,-4)
II :
Answers
Answer:
The answer to the question provided is
1. y = 4x - 3.
2. y = -2x - 2.
is 3 correct pls helppppppppppp
Answers
Answer:
yes it is you didn't even have to ask the question
Step-by-step explanation:
hope this helped :)
Which equation is true answer ASAP!
15 divided by 112.5=7.5
15 divided by 112.5=75
112.5 divided by 15=7.5
112.5 divided by 15=75
Answers
Answer:
112.5 divided by 15=7.5
112.5 divided by 15=7.5 equation is true answer.
Given option are:
15 divided by 112.5 = 7.5
15 ÷ 112.5 = 0.1333
This option is wrong.
15 divided by 112.5 = 75
15 ÷ 112.5 = 0.1333
This option is wrong.
112.5 divided by 15 = 7.5
112.5 ÷ 15 = 7.5.
This option is right.
112.5 divided by 15 = 75.
112.5 ÷ 15 = 7.5.
This option is wrong.
Therefore, the correct equation is 112.5 divided by 15=7.5
Learn more about divide here:
https://brainly.com/question/30038387
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If 12 eggs cost $1.73 how much will 1 egg be?
Answers
Answer: 6.93641618497 You would have to round that to the nearest sum.
if Richard worked for 7 dollars and made 9 dollars and hour how much would he make?
Answers
Answer:
$63
Step-by-step explanation:
I believe you meant Richard worked for 7 hours and made $9 per hour.
In order to know how much Richard earned for 7 hours, you have to multiply Richard's salary rate with his number of working hours.
7 hours x 9 dollars/hour = $63Therefore, Richard earned $63 for his 7-hour work.
Additional Information
Another example is: if Richard worked for 10 hours, you just have to multiply his salary rate again to his number of working hours.
10 hours x 9 dollars/hour = $90In the class, weight of students is measured for the class records. Calculate the mean
Answers
Answer:
The mean of the students is 8.3
Step-by-step explanation:
The mean is adding up all the numbers and dividing them by how many numbers there are
ann puts 37 photos in one book and 24 photos in another book. how many photos does she use in all?
Answers
37 + 24 = 61
61 photos
Answer:
61
Step-by-step explanation:
37+24=61
What is the formula and what is the answer
Answers
Answer:
In science, a formula is a concise way of expressing information symbolically, as in a mathematical formula or a chemical formula. The informal use of the term formula in science refers to the general construct of a relationship between given quantities.
Step-by-step explanation:
Hayden invested $200 in a savings account that earned 3.3% simple interest each year. William invested $300 in a savings account that earned 2.5% simple interest each year. Neither Hayden nor William add or take out money from their accounts. Hayden claims that she will earn more interest on her account than William after 2 years because she has a greater interest rate. Do you agree with Hayden? Why or why not? Be sure to defend your answer with numbers.
Answers
Answer:
No i do not agree
Step-by-step explanation:
58.74% as a decimal due today
Answers
Answer:
0.5874
Step-by-step explanation:
Answer:
0.5874
Step-by-step explanation:
Getting 58.74 percent of a number is the same as multiplying the number 0.5874
Which mathematical term describes 107x in an expression
Answers
Answer:
The mathematical expression is 107*x
Step-by-step explanation:
Since we already know that 107x equals to 107*x, we knew that the expression would be 107*x.
Hopefully this helped (• ▽ •)
A scale drawing for an apartment is shown below.
In the drawing, 5 cm represents 6 m.
Assuming the bedroom is rectangular, find the area of the real bedroom.
Answers
Answer:
16
Step-by-step explanation:
2 questions in 1
1. 3n for n=4
2. x + 8 for x=8
Answers
Answer:
2:16
Step-by-step explanation:
Answer:
1. 12
2.16
Step-by-step explanation:
Substitute the value of the variable into the equation and simplify.
What is the value of x ???
Answers
Answer:
D. [tex] 2\sqrt {133}[/tex]
Step-by-step explanation:
[tex] {x}^{2} = {18}^{2} + ( {12}^{2} + {8}^{2} ) \\ \\ {x}^{2} = 324 + (144 + 64) \\ \\ {x}^{2} = 324 + 204 \\ \\ {x}^{2} = 528 \\ \\ x = \sqrt{532} \\ \\ x = \sqrt{4\times 133} \\ \\ x = 2\sqrt {133}[/tex]
What is the overall charge of phosphide
Answers
Answer:
negatively charged
Step-by-step explanation:
What is 2+1 -6 +29 x3
Answers
Answer:
84
Step-by-step explanation:
2+1-6+29*3
= 2+1-6+87
= 3-6+87
= -3+87
= 84
Julie and her friends share some orange juice equally. Each person recieves 3/4 cups of juice. Which of the following shows a possible way that the juice was served?
4 cups of juice divided among 3 people
cups of juice divided among 3 people
cups of juice divided among 4 people
3 cups of juice divided among 4 people
Answers
0.25
______________________________________
Answer:
Step-by-step explanation:
3 cups of juice divided among 4 people
Find the quotient of: 3 1/3 ÷ 2 3/5 (Simplify if necessary)
Answers
Answer:
1 11/39
Step-by-step explanation:
Hope I could help
ANSWER FOR A BRAINLIEST Solve the system of two variables by substitution
Answers
Answer:
Substitution is when you isolate a variable-
3) We can divide the first equation by 6 to get x+y=-1, then isolate to get y=-1-x. We plug this into the second equation to have 3x+(-1-x)=-13. We simplify and get 2x=-12 so x=-6. We plug this back into the first equation and get -6+y=-1 so y=5. So the answer as an ordered pair is (-6,5).
4) We can isolate the second equation to get x=2y+11. We substitute this into the first equation to have -7(2y+11)-2y=-13. We simplify and get -16y=64 so y=-4. We plug this back into the second equation and get x+8=11 so x=3. So the answer as an ordered pair is (3,-4).
Roberta bought 9/10 pound of raisins. She put 2/5 pound in bags for her lunch. How many 2/5 pound bags can Roberta fill? Does she have any left over?
Answers
Answer:
2 pound bags and have a remeinder of 1/10
Step-by-step explanation:
Answer:
She can fill 2 bags for her lunch and will have 1/10 pound left.
Step-by-step explanation:
It is easier if there is a common denominator, so I made the 2/5 into 4/10, so it is the same as 9/10 pound she bought.
4/10 is one bag, and if you double that, it is 8/10 pounds used. This is two bags of raisins for her lunch.
9/10 - 8/10 leaves 1/10 pound remaining, and not in a bag.
adams bought some quantity f salt at 90 naira a tonne and sold it at 8k per kilogram how much did he loss or gain?
Answers
Answer:
gain
Step-by-step explanation:
Because a naira is 0.0026 of a dollar.
did it help?
HELP SOLVE ASAP
Vanessa needs to rent a car while on vacation. The rental company charges $17.95, plus 18 cents for each mile driven. If Vanessa only has $40 to spend on the car rental, what is the maximum number of miles she can drive? _________________________Miles
Answers
Answer:
2 miles.
Step-by-step explanation:
17.95 +17.95= 35.90
F(x)=2-x and g(x)=-2x
Answers
Answer:
Find f(g(x)):
f (-2x) = 2
Find g(f(x)):
g (2) = -4
Step-by-step explanation:
Set up the composite function and evaluate.
Liz has two gardens and wants to build a fence around each. She wants to buy all the fencing at one time. The diagram below shows her two gardens. Which of the following correctly shows the total amount of fencing, in feet, Liz will need to buy for both gardens ? A. Total: 29 x B. Total: 11 x + 4 C. Total: 22 x + 16 D. Total: 11 x + 8
Answers
Answer:
29
Step-by-step explanation:
Edward deposited $5000 into a savings account 5 years ago. The simple interest rate is 2%. How much money did earn in interest?
Interest=$____*____*____
Answers
Answer:
$500Step-by-step explanation:
Deposit = $5000Interest rate = 2% simpleTime = 5 yearsInterest amount is:
$5000*2*5/100 = $500please help me....................
Answers
Answer:
11
Step-by-step explanation:
i hope this help:)s
Y-3=2•(x+1) is correct in point slope form.
Use the point slope formula in which the point-slope is the general form y-y₁=m(x-x₁) for linear equations. It emphasizes the slope of the line and a point on the line (that is not the y-intercept).