Plug in for a
2(4-b)+b=1
8-2b+b=1
8-b=1
b=7
Step-by-step explanation:
Which matrix represents the system of equations shown below?
3x-2y = 9
4x - y = 12
O A.
li
-1 9
-2 12
B.
3 -2 9
-1 12
O c.
-29
3 -1 12
O D.
-2
-1 9
Answer: The answer is [3 -2 9]
[4 -1 12]
Step-by-step explanation: I took the test and got it right
The matrix that represents the system of equations is:
| 3 -2 |
| 4 -1 |
What are Systems of equations?Simultaneous equations, a system of equations Two or more equations in algebra must be solved jointly (i.e., the solution must satisfy all the equations in the system). The number of equations must match the number of unknowns for a system to have a singular solution.
There are four methods for solving systems of equations: graphing, substitution, elimination, and matrices.
We can write the system of equations in matrix form as AX = B, where:
A = the coefficient matrix of x and y coefficients
X = the column matrix of variables x and y
B = the column matrix of constants on the right-hand side of the equations
The matrix A is obtained by taking the coefficients of x and y from the left-hand side of the equations:
A = | 3 -2 |
| 4 -1 |
The matrix B is obtained by taking the constants from the right-hand side of the equations:
B = | 9 |
| 12 |
So the system of equations can be represented as:
| 3 -2 | | x | | 9 |
| 4 -1 | x | y | = | 12 |
Therefore, the matrix that represents the system of equations is:
| 3 -2 |
| 4 -1 |
Learn more about the System of equations here:
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I'll give brainlist if anyone answer correctly on these 2 questions
Answer:
1.a. Two fourth of the states must pass the amendment.
2. a. It gives the citizens a say in the matters of the government.
Step-by-step explanation:
Answer:
A, A
Step-by-step explanation:
Find the value of x in the triangle shown
Answer:um I dont really know maybe 4???
Step-by-step explanation:
write the equation of the circle graphed below
Answer:
(x +2)^2 + (y +2)^2 = .5625
Step-by-step explanation:
(x - h)^2 + (y - k)^2 = r^2
(x + 2)^2 + (y + 2)^2 = .75^2
Which statement is an example of the transitive property of congruence?
Answer:
Step-by-step explanation:
The transitive property in general says. The transitive property of congruence states that two objects that are congruent to a third object are also congruent to each other.
if a=b and b=c, then a=c
The transitive property of congruence replaces the equal sign with a congruence symbol, and replaces a, b, c with any geometric figure. Here the geometric figures used are triangles KLM, PQR, and STU.
If ΔKLM ≅ ΔPQR and ΔPQR ≅ ΔSTU, then ΔKLM ≅ ΔSTU hope this helps
Answer:
Step-by-step explanation:
If KML=PQR and PQR = STU then KML=STU because of the transitive property of congruence.
If f(x) = 4 – x2 and g(x) = 6x, which is the value of (g – f)(3)? (g – f)(3)=
Can someone please help
A service station charges $251 for four new tires and installation. If the installation portion of the bill is $84, what is the price of one tire
8710÷5=?
by showing work
A museum has 7 paintings by Picasso and wants to arrange 3 of them on the same wall. How many ways are there to do this?
If 9 people come to view the 3 paintings, how many ways can they look at the paintings?
______________________________
3 × 7 / 3 ÷ 7 × 100= 21 / 42.8%There Are A Total of 21 Ways To Arrange The Paintings.______________________________
The Number of ways of arranging 3 out of 7 painting is, 35.
The Number of ways of his look to the painting is 84
Permutation and combination :It is given that,
A museum has 7 paintings by Picasso and wants to arrange 3 of them on the same wall.
We have to select 3 out of 7 and arrange it.
Number of ways of arranging 3 out of 7 painting is,
[tex]=^{7}C_{3}\\ \\=\frac{7!}{3!*4!} =\frac{7*6*5*4!}{3*2*4!}=35[/tex]
When 9 people come to view the 3 paintings,
Number of ways of his look to the painting is ,
[tex]=^{9}C_{3}\\ \\=\frac{9!}{3!*6!}=\frac{9*8*7*6!}{6*6!}=84[/tex]
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can someone tell me the answer please ?
Answer:
-5 as the gradeint because y=mx+c in which m is the gradient
Step-by-step explanation:
283838383838382828 + 8383838388828299383838383838288888 =
A
B
C
D
Answer:
8.3838384e+33
Step-by-step explanation:
283838383838382828 + 8383838388828299383838383838288888 = 8.3838384e+33
You find a jacket you want to buy that has a price of $100. You have a coupon for
15% off the original price. How much did you pay for the jacket? *
Answer:
85
Step-by-step explanation:
100.00 - 15% = 85.00
help me please ill give brainlest
Answer:
D is the answer I think......
ASAP PLEASE!
Alejandro has 24 dozen bagels to sell. He has sold 9 dozen. How many more dozen bagels does he have to sell Which equation can be used to model the situation?
Answer:
d.
Step-by-step explanation:
I will give brainiest to whoever answers correctly !!
Answer:
12,000
Step-by-step explanation:
i believe this would be what she withdrew but if not i'm sorry for giving the wrong answer
The data from a study relating to the life span of houseflies is normally distributed. The mean is 18 days and the standard deviation is 3 days
Answer:
huntombros avatar
90% of people marry their 7th grade love. since u have read this, u will be told good news tonight. if u don't pass this on nine comments your worst week starts now this isn't fake. apparently if u copy and paste this on ten comments in the next ten minutes you will have the best day of your life tomorrow. you will either get kissed or asked out in the next 53 minutes someone will say i love u
Step-by-step explanation:
In AABC, m LACB 90°, CD I AB and m LACD -45°. Find:
Find CD, if BC = 3 in
459
B В
D
Answer:
CD = (3√2)/2 = 2.12 in.
Step-by-step explanation:
Reference angle = m<BCD = 45°
Hypotenuse = BC = 3 in.
Adjacent side = CD = ??
Apply trigonometric ratio
Cos(45) = CD/3
Multiply both sides by 3
3*Cos(45) = CD
3*√2/2 = CD (cos 45 = √2/2)
(3√2)/2 = CD
CD = (3√2)/2 = 2.12
(-1,-3),(0,1)(6,2)(-4,1)(2,-6) is this a function
Answer:
function
Step-by-step explanation:
input is not repeated
Which equation represents g(x) as a transformation of
g(x) = f(x) -5
g(x) = f(x - 5)
g(x) = f(x) + 5
g(x) = f(x + 5)
Answer:
g(x)=f(x)-5
Step-by-step explanation:
the negative inside the parenthesis reduces the x values but we have the y value reduced by 5 here so it goes outside
The equation represents g(x) as a transformation will be g(x) = f(x) - 5. Then the correct option is A.
What is a function?A statement, principle, or policy that creates the link between two variables is known as a function. Functions are found all across mathematics and are required for the creation of complex relationships.
From the graph, we can observe that the function g(x) is 5 units below the function f(x).
If the function gets shifted downward by k units then the k is subtracted from the function. Then the function g(x) is given as,
g(x) = f(x) - 5
The equation represents g(x) as a transformation will be g(x) = f(x) - 5. Then the correct option is A.
More about the function link is given below.
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How are the triangles related?
Answer:
They are congruent because they both have a "leg" measurement of 6, and a 90 degree angle
Step-by-step explanation:
A hiker want to determine the height of a cliff. She
has measured her height (5.8ft) and shadow (7ft).
She knows the cliff casts a shadow of 50ft. How
tall is the cliff?
Answer:
41.43 ft
Step-by-step explanation:
We solve the above using proportion
Height of cliff/Shadow of cliff = Height of Hiker/Shadow of hiker
Height of cliff = x
Shadow of cliff = 50ft
Height of Hiker = 5.8 ft
Shadow of hiker = 7 ft
Therefore:
x/50 = 5.8/7
Cross Multiply
7x = 50 × 5.8
7x = 290
x = 290/7
x = 41.428571429 ft
Approximately = 41.43 ft
Therefore, the height of the cliff = 41.43 ft
PLEASE ANSWER!
Leo says that the product of n/n x 4/5 is greater than 4/5 because multiplication always increases the number.
Which of the following values for n proves that Leo is incorrect?
A. 2
B. 7/6
C. 5/8
D. 5/4
E. 6/6
Answer:
D
Step-by-step explanation:
You have a meal at a restaurant. The sales tax is 8%. You leave a tip for the waitress that is 20% of the pretax price. You spend a total of $23.04. What is the pretax price of the meal?
Answer: 20.16 or 16.13 I did the math in a calculator.
Answer:
HE IS WRONG ITS
Step-by-step explanation:
Last week, Alan drove 196 miles. This week, he drove m miles. Using m, write an expression for the total number of miles he drove in the two weeks.
ABCD diagonals intersect at E. If m∠BAC=4x+5 and m∠CAD=5x-14, then find m∠CAD.
Answer: m∠CAD = 81°
Step-by-step explanation: Diagonal is a line that unites opposite sides.
ABCD is a prallelogram. One property of diagonal in a parallelogram is it separates the parallelogram in 2 congruent triangles.
The figure below shows ABCD with its diagonals.
Since diagonal divides a parallelogram in 2 congruent triangles, it means the internal angles are also congruent. So
m∠BAC = m∠CAD
4x + 5 = 5x - 14
x = 19
Then, m∠CAD is
m∠CAD = 5(19) - 14
m∠CAD = 81
The angle m∠CAD is 81°.
which equivalent is equal to 3(7x-5)
Answer:
21x -15
Step-by-step explanation:
use distributive property
a(b+c) = ab+ ac
what is an equivalent expression for 1/2 (x + 8)
4,320 is divisible by?
3
9
10
Answer:
3, 9, and 10
Step-by-step explanation:
To figure out whether 4,320 is divisible by these numbers, we can use their divisibility rules to help us out.
A number is divisible by 3 or 9 if its digits add up to a number divisible by 3 or 9. The digits of 4,320 add to 4 + 3 + 2 + 0 = 9, which is divisible by both 3 and 9, so 4,320 is divisible by 3 and 9.
A number is divisible by 10 if its last digit is a 0, which we have here, so 4,320 is divisible by 10.
whats the answers to these tables
Answer:
You would just plug in the x’s for the equations above and that will equal your x
Step-by-step explanation:
for example x=1
the equation is x+5
so y equals 1+5=6
y=6
