Answer:
C. (-1,6,1)
Step-by-step explanation:
Given the system of equation
6x−y+3z=−9 ...... 1
5x + 5y−5z = 20 ...... 2
3x−y+4z = −5 ...... 3
Reduce the equations to two variables with 2unknown
Multiply equation 3 by 2 and add to 1.
Equation 3×2; 6x−2y+8z = −10 ...... 4
Subtract 4 from 1
-y-(-2y)+3z-8z = -9-(-10)
-y+2y-5z = -9+10
y-5z = 1 ...... 5
Also multiply eqn 2 by 3 and 3 by 5
Equation 2×3; 15x+15y-15z= 60
Equation 3×5; 15x-5y+20z = -25
Subtract
15y+5y-15z-20z = 60+25
20y-35z = 85
Divide through by 5:
4y-7z = 17 ...... 6
...................................
Solve 5 and 6
y-5z = 1 ...... 5 × 4
4y-7z = 17 ...... 6 × 1
....................................
4y-20z = 4
4y-7z = 17
Subtract
-20z+7z = 4-17
-13z = -13
z = -13/-13
z = 1
Substitute z = 1 into equation 5 to get y:
From 5: y-5z = 1
y - 5(1) = 1
y-5 = 1
y = 1+5
y = 6
Substitute y = 6 and z = 1 into equation 3 to get x;
From 3: 3x−y+4z = −5
3x-6+4(1) = -5
3x -6+4 = -5
3x-2 = -5
3x = -5+2
3x = -3
x = -3/3
x = -1
Hence x = -1, y = 6 and z = 1
The correct answer is (-1, 6, 1)
help pleaseeee thank youuu
Hi :)
Your answer is .25
Lem.me explain
25x4 is 100
100 over 400 simplified is...
1/4
Here is an example
Jack had a Glass of milk 1/4 of the milk was left. Jack wanted to know how much more he would need to fill his cup
Jack would need .25 more to fill his glass
Hope this helps!
Brainliest!
Answer:
0.25
Step-by-step explanation:
To Turn 1/4 into decimal form:
Do..
1 ÷ 4 = 0.25
Check Answer:
0.25 x 4 = 1
Hence, 1/4 into decimal form is 0.25
~Learn with lenvy~
This is long and complex, may you please get some help?
Answer:
Step-by-step explanation:
a = -4 , b = 16 and c = -17
[tex]x =\dfrac{-b}{2a}\\\\x = \dfrac{-16}{2*(-4)}\\\\\\ =\dfrac{-16}{-8}\\\\\\\\[/tex]
x = 2
y = -4(2)² + 16*2 - 17
= -4*4 + 32 - 17
= -16 + 32 - 17
y = -1
Vertex (2, -1)
axis of symmetry: x = 2
Help would be appreciated, thanks
Answer:
-8
Step-by-step explanation:
the pattern is times 4
AM I PLAYING 2048??????
Answer:
-8
Step-by-step explanation:
This is a geometric sequence. Each term is obtained by multiplying 4 with the previous term.
common ratio = -128 ÷ (-32) = 4
-2 *4 = -8
list the factors of 60 that are even numbers
Answer:
The factors of 60 are 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, and 60. Every even number will have 2 as one of its factors. 60 is a composite number as it has more factors other than 1 and itself. Please mark brainiest.
heyy. can anyone help me ! please and thank you
Answer:
576 feet
Step-by-step explanation:
I'm going directly off the graph but it looks like the y-coordinate of the vertex is 576, which would make 576 feet the maximum height. Hope that helps :)
Which of the following describes a situation in which the total distance a tennis player travels is 0 meter from his starting point? (5 points)
Question 2 options:
1)
The player runs 9 meters forward and then runs 0 meters in the opposite direction.
2)
The player runs 5 meters forward and then runs 6 meters in the opposite direction.
3)
The player runs 7 meters forward and then runs 7 meters in the opposite direction.
4)
The player runs 6 meters forward and then runs 5 meters in the opposite direction.
Need to know asap thank you god bless
Answer:
1) +9
2) -6
3) 0
4) 1
Step-by-step explanation:
moving forward is a positive, moving in the opposite direction is a negative. So if you move 9 meters forward (9) and 0 in the opposite direction, and equation would look like this: 9-0
I hope this helps :)
Answer:
The answer is C.
Step-by-step explanation:
Say you’re at 0 on the number line. You go forward 7 steps and backwards 7 steps. You arrive at 0. Therefore your answer would be C.
Helppp!!!!! URGENTTFFFFjajshshdhd
Answer:
114 cm²
Step-by-step explanation:
Mah teacher help me do this lol
Answer:
A1=4m*12m=48m^2
A2=6m*3m=18m^2
A3=A1
therefore A1+A2+A3=114m^2
What is the slope from the table?!?!
Answer:
2
Step-by-step explanation:
PLS HELP ASAP THANKS ILL GIVE BRAINLKEST PLS THANKS PLS ASAP
Answer:
(-7, 8)
step-by-step explanation:
original coordinates of B: (-9, -8)if translated two units horizontally, there will be change in x axis
new coordinates: (-9+2, -8) → (-7,-8)if reflected over x-axis, use the formula: (x,y) → (x, -y)
new coordinates: (-7, -(-8)) → (-7, 8)Give me a full note on oxidation number.
Answer:
oxidation number, also called oxidation state, the total number of electrons that an atom either gains or loses in order to form a chemical bond with another atom.Step-by-step explanation:
Review Question: 5) f(x) = 2xsquared + 7x - 15 find f(-8)
Answer:
f(-8) = 57
Step-by-step explanation:
When x = - 8
f(-8) = 2 x (-8)² + 7 x (-8) - 15
f(-8) = 2 x 64 - 56 - 15
f(-8) = 128 - 56 - 15
f(-8) = 128 - 71
f(-8) = 57
[tex]\sf f(x) = 2x^2 + 7x - 1[/tex]
Just substitute the value of x as (-8) .
[tex]\sf f(-8) = 2(-8)^2 + 7(-8) - 15[/tex]
[tex]\sf f(-8) = 2(64) - 7(8) - 15[/tex]
[tex]\sf f(-8) = 128 - 56 - 15[/tex]
[tex]\sf f(-8) = 128 - 71[/tex]
[tex]\sf f(-8) = 57[/tex]
8) Choose the inequality that represents the statement.
He is older than 100.
The expression of the inequality that states his age is x > 100.
What is inequality?Inequality compares two non-equal quantities on both sides of the inequality sign. Inequalities are of four types they are:- Less than, Greater than, Less than or equal to, and Greater than or equal to. Their symbols are as follows:- <, >, ≤, ≥.
Given in the statement he is older than 100 which means his age is strictly more than 100.
Assuming his age to be x years.
∴ The inequality which represents this scenario is,
x > 100.
learn more about inequalities here :
https://brainly.com/question/11612965
#SPJ2
Pls help will mark as brainliest and give points
Answer:
Y=4x+2
Step-by-step explanation:
The most basic way to put this is dont count the starting Y when plotting, you can just count the Rise over Run meaning just look how much the Y moves up as the X moves 1 that will just be the first part and then just put +/- at the starting Y variable
If Juan weighs 185 pounds, Luis weighs 95 kg and Pedro weighs 75 kg, how much do they all weigh together in pounds?
Answer:
744
Step-by-step explanation:
185 lbs
95 kg= 209.44 lbs (round to 209)
75 kg= 165, 35 lbs(roudn to 165)
185+209+165 = 744
Simplify the equation.
A=1/2 [(x+10)+(5x-2)](x^2)=1/2[6x+8](x^2)
Answer:
3x^2+4x^2
Step-by-step explanation:
pls help me with this
Answer:
8125, im pretty sure this is right
Step-by-step explanation:
Emma buys a house for £300,000. She sells the house for £315,000. Calculate the percentage profit Emma makes
She buys it for £300,000 and sell it for £315,000 -> she profits £15,000.
So, the percentage profit Emma makes is : 15,000 : 300,000 = 0.05 -> 5%.
Answer:
5%
Step-by-step explanation:
300000 = 100%
1% = 300000 ÷ 100 = 3000
She made 15000
15000 ÷ 3000 = 5%
To make a big batch of cookies for her father, Annmarie needs 1 1 4 pounds of chocolate chips, 3 4 pounds of walnuts, and 12 ounces of raisins. How many ounces of these three ingredients does she need in all?.
She will need 68 ounces in total for all three ingredients.
What will be the total ounces for all three ingredients?It is given that
For chocolate chips, she has = [tex]\dfrac{11}{4}[/tex] pounds
For walnuts, she has = [tex]\dfrac{3}{4}[/tex] pounds
For raisins, she has= 12 ounces
We know that,
[tex]\rm 1 \ pound = 16 \ ounces[/tex]
[tex]\rm For \ chocolate \ chips, she\ has = \dfrac{11}{4} \times 16 }=44 \ ounces[/tex]
[tex]\rm For \ walnuts,\ she\ has = \dfrac{3}{4} \times 16 }=12\ ounces[/tex]
[tex]\rm For\ raisins, she \ has= 12\ ounces[/tex]
so the total number of ounces she has will be the sum of all
[tex]=44+12+12 =68\ ounces[/tex]
Thus she will need 68 ounces in total for all three ingredients.
To know more about unit conversion follow
https://brainly.com/question/13016491
Which of the following describe an angle with a vertex at A?
Check all that apply.
O A. _BAC
B. CAB
OC. ZACB
OD. ABC
Answer:
CAB
BAC
Step-by-step explanation:
A P E X
if the volume of the cube is 125 CM find its length find its total surface area .
i need hurry
step by step
process by process
who will give correct answer i make him / her as a brainlists
Answer:
150cm^2
Step-by-step explanation:
Let the side of a cube = a cm
Volume of the cube = a³ = 125
Or, a³ = 5³
Or, a = 5 cm
Surface area of the cube = 6a²
Or, Surface area of the cube = 6×5×5
Or, Surface area of the cube = 150 cm²
math test due in a couple hours .
Answer:
A
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
secret
hay nako wag na tayo mag aral
A baker uses a coffee mug with a diameter of 8\text{ cm}8 cm8, start text, space, c, m, end text to cut out circular cookies from a big sheet of cookie dough.
What is the area AAA of each cookie?
Give your answer in terms of pi.
A=A=A, equals
\text{cm}^2cm
2
start text, c, m, end text, squared
Answer:
Step-by-step explanation:
Since the cookies is circular in nature, we will use the formula for calculating the area of circle to calculate the area if each cookies.
Area of each cookies = πd²/4
Given diameter d = 8cm
Area of the cookies = π(8)²/4
Area of the cookies = 64π/4
Area of the cookies = 16π cm²
Answer:
16 pi ^2
Step-by-step explanation:
um yes
Simplify each expression.
(6b3 + 6 - 64) - (863 - 6b4 + 2)
Answer:
6b^4+6b^3-923
Step-by-step explanation:
Answer:
6b^4 + 6b^3 - 923
Step-by-step explanation:
Explain how you would graph the line containing a slope of -1/5 that goes through the point (1, -4).
Answer:
I would plot the point (1,–4) and then use the slope to move down 1 and right 5 to find another point on the line. Draw the line through the two points.
Step-by-step explanation:
i saw the answer
Answer:
I would plot the point (1,–4) and then use the slope to move down 1 and right 5 to find another point on the line. Draw the line through the two points.
Ken sees cars on a road. He sees 120 cars pass in 3 minutes. How many cars pass per minute?
Answer:
Ken would see 40 cars pass each minute.
Step-by-step explanation:
40 x 3 = 120
Have a great rest of your day
#TheWizzer
Answer: 40 cars pass per minute.
Step-by-step explanation:
[tex]\frac{120cars}{3minutes\\}[/tex] = [tex]\frac{?cars}{1minutes}[/tex]
3? = 120 [cross multiply]
? = 40 [divided 3 from both side]
Therefore, 40 cars passes per minute.
need help with geometry problem
Answer:
d. KL LM MK
Step-by-step explanation:
side opposite to the smallest angle is the shortest side and the side opposite to the largest angle is the longest side.
57 + 64 = 121
180 - 121 = 59
angle K is 59 degrees
onlinemath4allcom
A draw is being held to win a prize.
Bruce buys 17 tickets.
A total of 350 tickets are in the draw.
Find the probability that Bruce does not win the prize.
Answer:
I believe the answer is 95.15 %
Step-by-step explanation:
The slope between the points (-1,-5) and (r, -9) is 2. What is the value of r?
Answer:
r = 2
Step-by-step explanation:
slope = (y2 - y1)/(x2 - x1)
(-1, -5)
(r, -9)
-5 - (-9) / -1 - r = 2
4 / -1 - r = 2
r = -2
-1 - (-3) = 2
4 / 2 = 2
Please let me know if I've gotten anything wrong!
STOP ANSWERKNG WITH LINKS. PLEASE SOMEONE ANSWER THIS QUESTION ASAP , IVE SPENT ALL MY POINTS
Martin incorrectly claims that there are only parallel line segments found in the blinds. Give an example of perpendicular line segments found in the blinds
Answer: The stick that opens the blinds and, the string that pulls open the blinds.
A rectangular prism has length width w, and a height that is twice the length Which expression represents the volume of the prism
A 3lw
B 2l^ 2w
C 2l(l÷w)
D l^3w
Answer with step-by-step explanation:
Let's start by listing out the equation; w × l × 2l = v. If we simplify this equation, we would get w × [tex]2l^2[/tex] = v. This would mean the correct choice is B, because it shows the key equation, just written differently.
Hope this helped! (brainliest please)