Answers
Answer:
the marked answer is correct
Step-by-step explanation:
The desired end result is an identity matrix in the first three columns. The diagonal values are 1, as needed, so what remains is to eliminate the off-diagonal values. In row 2 that can be done by adding row 3 to it.
The next step should be to add rows 2 and 3 and replace row 2 with that sum.
Related Questions
A vacuum cleaner is priced at $135. The sales tax rate is 8%. What is the amount of sales tax in dollars and cents?
Answers
Answer:
$10.80
Step-by-step explanation:
1. Multiply 135 by .08
14) -8p - 34 = 6p + 50
Answers
Answer:
-6
Step-by-step explanation:
-8p - 34 =6p +50
-8p - 6p =50 +34
-14p =84
p=-84 :14
p=-6
Which statement is true about the parts of this expression?
5/6 + 1/4x - y
The constant is 5/6
The only coefficient is 1/4
The only variable is y.
The terms 5/6 and 1/4X are like terms.
Answers
I need help with these 2 questions, please help me.
Answers
Answer:
The probability of the spinner landing on 2 is one fourth.
Step-by-step explanation:
The spinner is split into 4 equal parts labeled 1, 2, 3, 4
The probability of the spinner landing on 2 is given as:
(Possibility of it landing on 2) ÷ (Total possible outcome)
The total possible outcome is 4, because the spinner could land on 1, or 2, or 3, or 4.
It can only land on 2 once, so the possibility of it landing on 2 is 1.
Probability = 1/4
answer quick plsssss
Answers
Answer:
C it think sorry if its wrong though
Step-by-step explanation:
hope this helps:)
pls can I be brainiest
Solve each equation by factoring.
When finding the solutions for `15k^2+k-4=-2`, what are the correct steps?
Answers
Answer:
k=1/3; k=-2/5
Step-by-step explanation:
[tex]15k^2+k-4=-2\\15k^2+k-2=0\\(3k-1)(5k+2)=0\\3k-1=0; 5k+2=0\\k=1/3; k=-2/5[/tex]
Determine if the expression 4x – 10x3 + 2x2 is a polynomial
or not.
Answers
Step-by-step explanation:
the correct answer is not a polynomial
Simplify the following expression. 5/2 + 11/60
A. 31/60
B. 3/5
C. 2/9
D. 37/60
Answers
Answer:
None; equals 161/60
Step-by-step explanation:
5/2 + 11/60
*60 *2
300/120 + 22/120
= 322/120
/2
161/60
what is the y-intercept of the graph of the equation 3x + y=6
Answers
Answer:
see below
Step-by-step explanation:
To find the y intercept, let x= 0 and solve for y
3x + y=6
3*0 +y = 6
y = 6
The y intercept is 6
(0,6)
how do you simplify this?
Answers
Answer:
tan x
Step-by-step explanation:
(tan-x)[sec(pi/2)-x] (sin-x)
We know that tan (-x) = - tan (x) and sin (-x) = - sin (x)
-(tanx)[sec(pi/2)-x] -(sinx)
(tanx)[sec(pi/2)-x] (sinx)
Using the identity sec = 1/ cos
sec ( pi/2 -x) =1/cos ( pi /2 -x)
We know that cos (s-t)=cos (s) cos(t) + sin (s) sin (t)
1/ ( cos pi/2 cos x + sin pi/2 sin x) = 1/(0 cos x - 1 sinx) = 1 / sinx
Replacing into the equation
(tanx)[1/ sinx] (sinx)
tan x
Solve for g.
g\3 -1 =1
Answers
Answer:
G=6
Step-by-step explanation:
Answer:
g = 6
Step-by-step explanation:
g/3 - 1 = 1
+1 +1
g/3 = 2
(3) (3)
g = 6
I will mark as. Brainliest asap plz!!!
Answers
Answer:
373376
Step-by-step explanation:
i think its that
PLEASE HELPPPPPP, THIS IS OVER DUE.
Answers
Answer:
Now, a reflection is when you turn the shape around to the right quadrant, so what will a be if it is reflected, it is (3,0) x=3 and y=0 Brainliest?
which relation is not a function?
A) (1,2)(2,10)(4,5)
b) (-3,5)(3,5)(5,6)
c) (3,6)(6,3)(3,2)
d) (1,6)(-1,6)(2,2)
Answers
Answer:
Step-by-step explanation: f
Label each scenario as proportional (P) or non-proportional (NP). If a scenario is proportional, calculate the k-value.
Response area 3 pounds of grapes cost $6.57 Response area
Response area Pizza Palace charges $8 per pizza plus a $3 delivery fee. Response area
Response area Jay has 2 pencils and buys a new one each week. Response area
Response area It takes 1.5 ounce of glue to make 12 ounces of slime.
Answers
Answer:
Proportional kvalue-2.19
Non-proportional
Non-propotional
Proportional kvalue-8
Step-by-step explanation:
How to you post a picture of a graph
Answers
[tex]\frac{x}{3} +\frac{2}{5} =-4[/tex]
Answers
x/3 + 2/5 = -4
x/3 + 2/5 - 2/5 = -4 - 2/5
x/3 = -22/5
x/3 * 3 = -22/5 * 3
x = -66/5 or -13 1/5
What is the solution to the equation 13.7y = 6.2y + 30
Answers
Answer:
y=4
Step-by-step explanation:
Answer:
its y=4 credit goes to the chap above
Step-by-step explanation:
If 3a-4=26 what is the value of 2/5a?
Answers
what does the second row of numbers represents.help!!!
Answers
Answer:
the amount of vanilla teaspoons needed for the amount of flour
Step-by-step explanation:
SOMEONE PLZZ HELP ME ASAP I HAVE TO TURN THIS IN SOON!!!!!!!!
A pair of shoes cost $75 and are on sale for 25% off. What would be the cost of the shoes AFTER the discount?
Answers
Answer: 56.50
Step-by-step explanation:
75 divided by 2 = 37.50
37.50 divided by 2 = 18.75
75 - 18.75 = 56.25
Hope this helps!
PLEASE HELP FAST... WILL MARK AS BRAINLIEST IF GIVEN GOOD ANSWER
Answers
Answer:
That it is 180 degrees
Step-by-step explanation:
Answer:
CP=CP
CP is perpendicular to AB
Step-by-step explanation:
What are the answer choices?
please help me with this it’s due in an hour idkkk if this is right tell me what i did wrong.
Answers
Answer:
the answer is
yes you are right, thanks for scrolling down
Step-by-step explanation:
I'm pretty sure you got this correct cause you can see in week 5 Kenny made 180$ and Stephanie only made 170$
The price of a train ticket from Lexington to Orlando is normally $128.00. However, children under the age of 16 receive a 65% discount. Find the sale price for someone under the age of 16.
Answers
Answer:
83.20
Step-by-step explanation:
You put the 65 into a percent then multiply by 128 then you get your discount
2.Select all the expressions that will result in a rational number.
Answers
Answer:
D and EStep-by-step explanation:
A. 5/6 + √12/3 = 5/6 +2√3/3 = 1/6( 5 + 4√3)
→ IrrationalB. 5/6 × √12/3 = 5/6 × 2√3/3 = 5√3/9
→ IrrationalC. 5/6 × √12 = 5/6 × 2√3 = 5√3/3
→ IrrationalD. 5/6 - √36/3 = 5/6 - 6/3 = 5/6 - 12/6 = -7/6
→ RationalE. 5/6 + √36/3 = 5/6 + 6/3 = 5/6 + 2 = 2 5/6
→ Rationalayooo I need help ASAP
Answers
Answer:
Ok
Step-by-step explanation:
Answer:
2>-4
Step-by-step explanation:
The answer is D. positive numbers are always greater than negative numbers.
A researcher needs 25 mL or 45%
base Solution for a certain
expiriment, but she has only 15%
Solution and 65% Solution. How
many mL of the 15% and the
65% Solutions should she mix to
get what She needs?
Answers
Answer:
10 mL of 15% solution
15 mL of 65% solution
Step-by-step explanation:
If x is the volume of 15% solution, and y is the volume of 65% solution, then:
x + y = 25
0.15 x + 0.65 y = 0.45 (25)
Solve with substitution:
0.15 x + 0.65 (25 − x) = 0.45 (25)
0.15 x + 16.25 − 0.65 x = 11.25
0.50 x = 5
x = 10
y = 15
Graph XY with endpoints X(−3, 1) and Y(4,−5) after the composition. Translation: (x, y)→(x, y+2) Rotation: 90° about the origin
Answers
Answer:
X’ is (3,3) and Y’ is (-3,-4)
Step-by-step explanation:
Here, we want to get the coordinates of the point XY after translation and rotation about the origin at 90 degrees
X (-3, 1 ) and Y (4,-5)
Using the translation we have
(-3, 1 + 2) and (4, -5 + 2)
= (-3,3) and (4 , -3)
Rotation about the origin, we have
(x , y) = (y , -x)
So the new set of points will be:
(3,3) and (-3, -4)
Transformation involves changing the position of a point or line or shape.
See attachment for the graph of X"Y"
The endpoints are given as:
[tex]\mathbf{X = (-3,1)}[/tex]
[tex]\mathbf{Y = (4,-5)}[/tex]
A translation of [tex]\mathbf{(x,y) \to (x,y+2)}[/tex] means that:
[tex]\mathbf{X' = (-3,1+2)}[/tex]
[tex]\mathbf{X' = (-3,3)}[/tex]
[tex]\mathbf{Y' = (4,-5 + 2)}[/tex]
[tex]\mathbf{Y' = (4,-3)}[/tex]
A 90 degrees rotation about the origin is:
[tex]\mathbf{(x,y) \to (y, -x)}[/tex]
So, we have:
[tex]\mathbf{X" = (3, 3)}[/tex]
[tex]\mathbf{Y" = (-3, 4)}[/tex]
See attachment for the graph of X"Y"
Read more about transformation at:
https://brainly.com/question/13801312
If the dimensions of a rectangular playground can be represented as (4x - 5) and (3x + 7), then what is the
area of the playground
Answers
Answer:
6x[tex]x^{2}[/tex] + 41x + 48
Step-by-step explanation:
Answer:
10m and 45m
Step-by-step explanation:
Just did it
plz guys help me with that questions plz
plz guys help me
Answers
Step-by-step explanation:
Issun Sengeki... Messatsu!
In my opinion, I'd say A and C aren't functions, but B is a function.
The reason being is because every "X" value has a "Y" value. For those that don't have exactly 1 "Y" value aren't functions.
A. has more "Y" values than "X" values, so that proves not to be a function.B. Has "X" values that are exactly appointed to a "Y" value.C. Has one "X" value that's missing, and a "Y" value that doesn't exist.Hope this helps!
Quote:
"The answer lies in the heart of battle."
- Ryu