Answer:
1.4
Step-by-step explanation:
2x - 5y + 3z = 27
4x + 3y - 7z=-37
x - 2y + 5z = 30
I need help solving this with cramers rule
Step-by-step explanation: answer {x,y,z} = {1,-2,5}
/ Solve equation [3] for the variable x
[3] x = 2y - 5z + 30
// Plug this in for variable x in equation [1]
[1] 2•(2y-5z+30) - 5y + 3z = 27
[1] - y - 7z = -33
// Plug this in for variable x in equation [2]
[2] 4•(2y-5z+30) + 3y - 7z = -37
[2] 11y - 27z = -157
// Solve equation [1] for the variable y
[1] y = -7z + 33
// Plug this in for variable y in equation [2]
[2] 11•(-7z+33) - 27z = -157
[2] - 104z = -520
// Solve equation [2] for the variable z
[2] 104z = 520
[2] z = 5
// By now we know this much :
x = 2y-5z+30
y = -7z+33
z = 5
// Use the z value to solve for y
y = -7(5)+33 = -2
// Use the y and z values to solve for x
x = 2(-2)-5(5)+30 = 1
PLS ANSWER I NEED HELP ASAP RUNNING OUT OF TIME ANSWER ONLY IF U KNOW I WILL MAKE YOU THE BRANILEST.
Identify the set of ordered pairs that represents y as a function of x.
A. {(0, 0), (1, 0), (2, 4), (2, 3)}
B. {(0, 0), (1, 1), (2, 2), (3, 3)}
C. {(−1, 0), (−1, 1), (−2, 2), (0, 3)}
D. {(−1, 1), (−2, 0), (−3, 4), (−3, 3)}
Answer:
It is B
Step-by-step explanation:
the x and y are the same
complete the table by determining the y values
y=2×+3
Answer:
Step-by-step explanation:
6
Is this a function (1,17),(0,16),(0,15),(-2.17)
Answer:
no
Step-by-step explanation:
because there is two 0
In triangle BCD overline BC cong overline BD ,m angle B=13x-35 , m angle C=5r-19 and m angle D=2r+14 , find x and the measure of each angle.
Answer:
136
Step-by-step explanation:
Answer:
The measure of m<B, m<C and m<D are 108, 36 and 46
Step-by-step explanation:
What are triangles?
From the triangle BCD, if BC=BD, then
m<C = m<D (Base angles are equal)
Given the following paramters:
m<C = 5x-19
m<D = 2x + 14
Hence;
5x - 19 =2x + 14
5x- 2x = 14 + 19
3x = 33
x = 11
m<B = 13x - 35
m<B = 13(11) - 35
m<B = 108 degres
m<C = 5x - 19
m<C = 55- 19
m<C = 36
m<D = 180 - 144
m<D = 36 degreees
Does anyone happen to know this answer, if so please help me out
Answer:
88
Step-by-step explanation:
you just multiply base by height
If $140.06 is charge for 47 kilowatt-hours of electricity, the rate is _________ centavos per kilowatt-hours
Answer:
2.98 centavos
Step-by-step explanation:
Divide 140.06 by 47
PLSSS HELP PLSSSS IM SUFFERING IM NOT A LAZY NOR BAD STUDENT BIT THIS IS HARD FOR MEEE PLSSS HELPPP
Answer:
OOP
Step-by-step explanation:
oop oop oop oop oop oop oop oop oop oop oop oop oop oop oop oop oop oop oop oop oop oop oop oop oop oop oop oop oop oop oop oop oop oop oop oop oop oop oop oop oop oop oop oop oop oop!
oh my god someone just deleted my question when it was a positivity corner with motivational messaged smh!
Answer:
Whatttt that person is negative they need that positivity but yet they deleted that positivity corner with a motivational message. Sad
(Help me please)
The imagenIs the question´
WILL GIVE EXTRA POINTS
assignment name: transformations
Answer:
K(1,0), L(2, 3), M(-1, 4), N(-2,1)
Step-by-step explanation:
Because the points are being flipped over the x-axis the y values remain the same, but the x values are multiplied by -1. Multiplying the values by -1 will switch a negative value positive and a positive value negative. This will correctly flip the points to the opposite side of the graph.
Which expression is equivalent to -6(-2/3+2x)?
Answer:
4+(-12x)
Step-by-step explanation: Hope this helped!
If p→q is true and p is true, then we know q is true.
True
False
Answer:
false
Step-by-step explanation:
ABC = EDC, AB = 7 A=40° E = ?
Answer:
This equation is unsolvable, You may have inputted it wrong. revise and try again.
Step-by-step explanation:
A chinese restaurant offers buffet takeout for 4.99 per pound. How much does your meal cost if your food weighs .65 punds
Answer:
$3.24
Step-by-step explanation:
Answer:
$3.2435 or about $3.24
Step-by-step explanation:
65% of 4.99 = 3.2435
15. A bag contains 8 blue chips, 7 green chips, and 2 white chips. If three chips are drawn
without replacement, what is the probability of drawing two blue chips and then a green
chip?
PLEASE ANSWER THIS I NEED HELP RNNN!!
SHOW WORK PLEASE AND EXPLANATIONS SO I CAN UNDERSTAND!!! :)
Answer:
Every five minutes, the shuttle loses 1.6km in altitude. This can be written in the equation y = [tex]\frac{1.4}{-5}[/tex]x + 100.It would have been 100.56 km above the earth. You can do this by plugging in -2 into the equation above. You have to use -2 because it is 2 minutes before tracking started.It will take around 357 minutes for it to reach the ground. Set the equation equal to 0 and solve for x which represents the time taken.Step-by-step explanation:
1. change in y over change in x.
[tex]\frac{100-98.6}{0-5}[/tex] = [tex]\frac{1.4}{-5}[/tex]
This becomes your slope.
the y-intercept is 100 because at x = 0, y= 100.
So plug these values into y = mx + b and you get y = [tex]\frac{1.4}{-5}[/tex]x + 100.
2. If the line starts at x = 0, then if you want to get a value for 2 minutes prior you have to use -2 because 0 - 2 = -2.
y = [tex]\frac{1.4}{-5}[/tex](-2) + 100
Set it equal to zero and solve algebraically. The answer should be 100.56.
3. If we want to see how many minutes it takes to get to an altitude of 0, we have to make y = 0 and solve for x. This is because we know that y will be 0 but we don't know how long it takes.
0 = [tex]\frac{1.4}{-5}[/tex]x + 100
Solve algebraically and you should get an answer around 357.
worth brainliest!!
easy way to remember newtons 1st law:
easy way to remember newtons 2nd law:
easy way to remember newtons 3rd kaw:
Answer:
In the first law, an object will not change its motion unless a force acts on it.
In the second law, the force on an object is equal to its mass times its acceleration.
In the third law, when two objects interact, they apply forces to each other of equal magnitude and opposite direction.
Step-by-step explanation:
Hope this helped!
also if you want can you answer my two most recent questions :))
Answer:
In the first law, an object will not change its motion unless a force acts on it.
In the second law, the force on an object is equal to its mass times its acceleration.
In the third law, when two objects interact, they apply forces to each other of equal magnitude and opposite direction
Your Welcome :)
Linear equation: -1
2
(6x + 10) = 13
Step 1: –3x – 5 = 13
Step 2: –3x = 18
Step 3: x = –6
Which sequence describes the inverse operations used for steps 2 and 3 to solve the linear equation?
the addition property of equality and then the division property of equality
the addition property of equality and then the multiplication property of equality
the subtraction property of equality and then the division property of equality
the subtraction property of equality and then the multiplication property of equality
Answer:
The right answer is:
the addition property of equality and then the division property of equality
Step-by-step explanation:
Given equation and steps to solve it are:
Step 1: –3x – 5 = 13
Step 2: –3x = 18
Step 3: x = –6
In step two, -5 has to be removed from left hand side of the equation so additional property of equality will be used i.e. adding 5 on both sides
Similarly in the third step, to remove -3 with x , division property of equality will be used i.e. dividing both sides by -3
Hence,
The right answer is:
the addition property of equality and then the division property of equality
Answer:
A) the addition property of equality and then the division property of equality
Step-by-step explanation:
Mrs. Sung gave a test in her trignonmetry class. The scores were normally distributed with a mean of 85 and a standard deviation of 3.
What percent would you expect to score between 88 and 91? Round answer to the nearest tenth.
Answer and explanation:
67% as it's +/- one standard deviation from the mean
Please help me!
The basketball team of Martin Luther King High School won 12 of its first 15 games. Then it won its next 3 games. The percent of winning games was:
(A) 80% (B) 75% (C) 60% (D) 83 1/3 % (E) 78%
Answer:
D
Step-by-step explanation:
15/18 is 83 1/3
BTW do you go to RSM?
Answer:
D: 83 1/3%
Step-by-step explanation:
They won 15/18 games. 15/18 is 0.83333333333... Therefore, 83 1/3%.
Wayne walked from the car dealership to the post office and then from the post office to the garbage dump. How far did Wayne walk in all? garbage dump car dealer .
Answer:
I want to say seven units
Step-by-step explanation:
I believe he went 4 units up and 3 units left if he went to just the car dealership , post office and Garbage dump .
Hope I could help -
Sleepy~
Help me please I will mark you brainlist !! Don’t comment if yuu don’t kno
Answer:
c
Step-by-step explanation:
a-7
b-7
c-6
d-7
im sorry if its wrong but i think its right
please help will give brainliest! :)
Answer:
it's 13 square units hope this helps
Jesus is the son, the spirit, and the son of God.
2. (x3 – 6x2) (x – 7)
Answer:
I believe this is the answer you are looking for:
x3-6x2-7x
Step-by-step explanation:
What is the value of x in the equation -2/3x9=-3
Answer:
your equation is false
PLEASE ANSWER QUICKLY
Explain the steps to solve for g in the equation −1/3g+5=2 .
Answer:
g = 9. I hope that I help my buddy out :)
Answer:
g=9
Step-by-step explanation:
Step 1: Subtract 5 from both sides.
-1/3g=5-5=2-5
-1/3g=-3
Step 2: Multiply both sides by 3/(-1).
(3/-1) x (-1/3g)=(3/-1) x (-3)
ANSWER g=9
It took 45 minutes to jog 5 miles. At this rate, how long did it take to jog 1
mile? *
Answer:
9 minutes
Step-by-step explanation:
45 ÷ 5 = 9
Therefore, it was 9 mins / mile
Hopefully this helped! :D
-LavenderVye
Answer:
9 minutes to jog 1 mile
Step-by-step explanation:
Time = 45
Distance = 5
Speed = [tex]\frac{Distance}{Time}[/tex]
= [tex]\frac{45}{5}[/tex]
= 9
A small box holds 80 books. A large box holds 195% as many books, How many books does the large box hold?
Answer: 156
Step-by-step explanation:
80 x 195% = 156
OR
80 x 1.95 = 156