Match each system of equations to the inverse of its coefficient to the inverse of its coefficient matrix, A^-1, and the matrix of its solution, X.
Answers
Answer: Look st the picture below.
Step-by-step explanation: I got this right on Edmentum.
Related Questions
How to solve
y = x + 1
y = 5x + 13
Answers
Answer:
Substitute y=5x+13
[ 5x+13=x+1 ]
For y=5x+13
Substitute x=−3
y=5(−3)+13
5(−3)+13=−2
y=−2, x=−3
Step-by-step explanation:
please help i’ll give brainliest
Answers
..............
producers
what is the correct solution to-3x < 21?
Answers
Answer:
x > - 7
Step-by-step explanation:
Given
- 3x < 21
Divide both sides by - 3, reversing the symbol as a result of dividing by a negative quantity.
x > - 7
The solution of inequality - 3x < 21 is,
⇒ x > - 7
We have to given that,
The inequality is,
⇒ - 3x < 21
We can simplify the inequality as,
⇒ - 3x < 21
Divide 3 both side,
⇒ - 3x /3 < 21 / 3
⇒ - x < 7
Take - 1 as common,
⇒ - x < 7
⇒ x > - 7
Therefore, The solution of inequality - 3x < 21 is,
⇒ x > - 7
Learn more about the inequality visit:
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8. Find the values of the variables.
a. x = 39.6, y = 10.6
b. x = 10.6, y = 39.6
c.x= 42.4, y = 158.4
d. x 158.4, y = 42.4
Answers
Answer:
x = 10.6, y = 39.6
Step-by-step explanation:
Given that,
Angle A = 75°
Angle B = 90°
Angle C = 180-(A+B)
= 15°
Now, using trigonometry,
[tex]\sin C=\dfrac{x}{41}\\\\x=41\times \sin C\\\\=41\times \sin(15)\\\\x=10.6[/tex]
For y, using Pythagoras theorem,
[tex]y=\sqrt{41^2-10.6^2} \\\\y=39.6[/tex]
Hence, the value of x is equal to 10.6 and that of y is equal to 39.6.
Write a real-world problem that could be solved using the
equation below.
s2 = 400
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Answer:
I have two pairs of marbles, and they are evenly distributed between two piles and I have 400, how many marbles are in each pile?
(っ◔◡◔)っ ♥ Hope It Helps ♥
Find the area of this regular polygon if s = 11 and a = 8
Answers
Answer:
599.401
Step-by-step explanation:
POINTSS GIVEAWAY!!!!!!!!!!! WHOEVER GETS THEM, YAYYY AND FOR THOSE WHO DONT I HOPE BOTH SIDES OF YOUR PILLOW ARE COOL TONIGHT, REMEMBER TO STAY HYDRATED, TAKE YOUR MEDS AND EAT SOMETHING, STAY SAFE MY LUVS❤
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Answer:
lets go
Step-by-step explanation:
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I really need help I dont get how to solve to the answer
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Answer: A
Step-by-step explanation:
3/5 = 60%
A, Rosa has 7/12 which is about 58%
B, Rosa has 6/12, which is 50%
C, Rosa has 9/12 which is 75%
D, Rosa has 8/12 which is 66%
A would be the closest.
Write an equivalent expression.
−2(7+6g)
Choose the correct answer below.
A.
−2(7+6g)=6g−14
B.
−2(7+6g)=−2−12g
C.
−2(7+6g)=−14+6g
D.
−2(7+6g)=−14−12
Answers
Answer:
Assuming choice D is -14-12g, then it would be choice D.If it is supposed to be -14-12, then there is no such solution in choiceStep-by-step explanation:
Here, in order to make an equivalent expression, we need to know the concept of the distributive property.
c(a+b)=ac+bc---------------------------------------------------------------------------
Solve
-2(7+6g)
=(-2×7)+(-2×6g)
=-14-12g
Hope this helps!! :)
Please let me know if you have any question
Answer:
-2(7+6g)= -14 -12
PLEASEE hurry, I attached 15 points
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Answer:
113.04
Step-by-step explanation:
A = πr²
6 x 6 = 36
36 x 3.14 = 113.04
Factor −1/2 out of −1/2x+6.
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Answer:
Step-by-step explanation:
socratic.org/questions/how-do-you-factor-1-2-out-of-1-2x-6#630699
The equation is A = - ( 1/2) [ x - 12 ]
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 A
Now , the value of A is A = - ( 1/2 )x + 6
Now , on factorizing the given expression , we get
On taking the common term as - ( 1/2 )
A = - ( 1/2 )x + 6
A = - ( 1/2 ) [x - ( 2 x 6 ) ]
On simplifying the equation , we get
A = - ( 1/2 ) [ x - 12 ]
Therefore , the value of A is A = - ( 1/2 ) [ x - 12 ]
Hence ,The equation is A = - ( 1/2) [ x - 12 ]
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Find x
Please help !
Will give BRAINLIEST
No links !
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5. Identify each relation that is a function.
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Answer:
Looks like we got the same packet so i'll answer all of the questions you wrote on it.
The answers are: B, C, and F
Answer:
B C and F
Step-by-step explanation:
Plz help plz plz plz this is due today
Answers
Answer:
A,E
Step-by-step explanation:
Answer: hi um so the answer is x= 10-2y it might be B or F good luck and have a nice day
Step-by-step explanation:
2(x+2y)=20
x+2y=20/2
x=2y=10
x=10-2y
A line,y = mx +b, passes through the point (4,-3) and is
parallel to y = 12 +3. What is the value of b?
1
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Solve the Quadratic Equation for x
x^2-2x+11=0
no spams pls first part is x squared, if u need clarification
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x = +/- sqrt10 i + 1
Explanation:
Key: +/- is plus-minus
I used complete the square
x^2 - 2x + 11 = 0
x^2 - 2x = -11 -2/2 = (-1)^2 = 1
( x - 1 ) ^2 = -10
x - 1 = +/- sqrt10 i
x = +/- sqrt10 i + 1
Picture for clearer answers v
A ) 90
B ) 165
C ) 270
D ) 75
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Answer:
165-90=75
item D
Answer:
Step-by-step explanation:
165-90=75
A video game is in high demand and the store can't keep them in stock. Instead of selling it for $60 they markup the price 17%. What is the new price after the markup?
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Answer:
$70.20
Step-by-step explanation:
60 x 1.17 = 70.20
Help, please! I will mark you!
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Answer:
It's the first one
Step-by-step explanation:
my question is in. the photo
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Answer:
5
Step-by-step explanation:
To find the median, write down all numbers in numerical order and cross off one number from each side until you are left with the middle number.
One thing to keep in mind when doing this, though, is to make sure you cross off the same amount on each side, and if you have 2 numbers left, like 13 and 14, your answer would be the number exactly between those, 13.5.
Hope this helps :)
A study showed that the population of fish in a pond
increased from 310 to 403. What is the percent of the
increase?
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A drawing is 12 inches wide and 10 inches long. Joe wants to enlarge each side by a scale factor of 0.3. What will be the area of the dilation?
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Answer:
Area of the dilation = 10.8 square inches
Step-by-step explanation:
Given the original dimension
Length = 12inches
Width = 10inches
If they are dilated by a factor of 0.3
New length = 0.3 * 12 = 3.6in
New width = 0.3 * 10 = 3in
Area of the dilation = 3.6 * 3
Area of the dilation = 10.8 square inches
which number best represents the slope of the graphed line?
Answers
Answer:
If you have choices it is either -5 or 5.
Step-by-step explanation:
First, you find two points, which mine were (0,2) and (-1,7). The slope formula is y2 - y1 divided by x2 - x1. So, im going to subtract 7 - 2, which is your y2 - y1, to get 5. Then, i'm going to subtract -1 - 0, which is your x2 - x1, to get -1. Then, you divide 5 by -1 to get -5. I Hope This Helps :)
Nathan and Sydney start out together on a bike trail that is 24 24 miles long. Nathan bikes at 8 8 miles per hour. Sydney bikes at 12 12 miles per hour. Which statement is true?.
Answers
Answer:
what are the staements
Step-by-step explanation:
sydney finishes first
Nathan finishes second
Sydney finished in 2 hours
Nathan finishes in 3 hours
i am guessing at the statements
A barn is shaped like a rectangular prism with a triangular prism on top as shown. The exterior four walls and two triangular faces need to be repainted. If one gallon of paint covers 232 square feet, how many gallons will it take to repaint the barn? Enter your answer in the box.
PLS help me I'm DESPERATE
its 100 points so it will be worth it
Answers
Answer:
23 gallonsStep-by-step explanation:
The area of the 4 exterior walls:
A = 2(38 + 84)*20 = 4880 ft²The area of the 2 triangular faces:
A = 2*1/2*38*12 = 456 ft²Total area to be painted:
4880 + 456 = 5336 ft²Paint required:
5336 / 232 = 23 gallonsAn owner of a small store knows that in the last week 52 customers paid with cash, 42 paid with a debit card, and 153 paid with a credit card. Based on the number of customers from last week, which fraction is closest to the probability that the next customer will pay with cash?
A. 1/5
B.1/4
C.1/3
D.1/2
Answers
Answer:
around 1/4
Step-by-step explanation:
4)
Solve the equation for x.
EX-8--12
ighlight
Time
maining
3:13:47
de Tools
A)
X = -12
B)
x = -6
C)
X-4
D)
X-6
5)
Apply the distributive property to simplify the expression.
Answers
Answer:
x =(-8+√464)/-8=1-1/2√ 29 = -1.693
Step-by-step explanation:
O departamento financeiro de uma empresa de cosméticos apresentam relatório referente aos lucros e/ou prejuízos de ano 2010 o gráfico baixo contido no relatório função lucro (L). Do 2° grau e a função custo (C), do 1° grau para produção de venda de x centenas de unidades de cosméticos
Answers
Answer:
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The graph of f(x) = 0.4x is replaced by the graph of g(x) = 0.4x + k. If g(x) is obtained by shifting f(x) up by 4 units, then what is the value of k?
Answers
Answer:
The value of k=4
Step-by-step explanation:
we have
f(x)=0.4x
This function represent a linear direct variation (The line passes through the origin)
we know that
If f(x) is shifting up by 4 units
then
The y-intercept of the function will be the point (0,4)
therefore
The function g(x) will be -----> g(x)=0.4x+4 (equation of the line into slope
intercept form)
The rule of the translation
f(x) --------> g(x)
(x,y) -------> (x,y+4)
The translation is 4 units up
therefore
The value of k=4
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Answers
Answer:
3
Step-by-step explanation: