Which matrix equation represents the system of linear equations?
3x-9y-Z=-4
-2x + y - 8z = 1
5x + 2y + 2z = 9
-175 x 3
1 1 - 8
y = -2
9 2 2
-4 -9
N
LO
3 -9
-111x
-4
-2
1 - 8
y =
1
B
5
2
2
N
9
x
3 -9
-4
х
-1
-2
1
1 ll y =
8
ir N
2
9
Z
2
9514 1404 393
Answer:
B
Step-by-step explanation:
When solving multiple choice problems, a reasonable strategy is to look for ways to identify one answer as good, or other answers as bad.
Here, all of the constant vectors in the equations are different, so we can decide the answer based on that.
The only equation with the correct constant vector is choice B.
_____
The constants in the equations are -4, 1, 9 — the values to the right of the equal sign.
Please Help emergency
work out the median of 1/3, 2/5, 1/4, 3/10, 3,20
Answer:
1/3 and 2
OR
3/10
(read sbs explanation)
Step-by-step explanation:
Order the numbers in order from least to greatest:
1/4, 3/10, 1/3, 2/5, 3, 20
Take the middle one, so the answer is 1/3, 2/5 as they are the two middle numbers. If you messed up your typing and the last numbers are supposed to be 3/20 not 3 and 20, your answer would be 3/10.
y=5 x 3 to the power of 4 help asap
Answer:
405
Step-by-step explanation:
First you do the exponent first which would be 3 to the power of 4 which is 81 and then you would multiply that by 5 which gives you 405.
Andre s school has 20 clubs, which is 5 times as many as his cousin's school. his cousin's school has x clubs. ( please answer as an equation as many equation as u can)
Independent Practice
Complete the statement.0.25 m= cm
A.
25
B.
0.0025
C.
2.5
D.
250
Answer:
0.25 meters is the same as A. 25 centimeters
Explanation:
multiply the length value (0.25) by 100 to get to cm from m
hope this helps chu <3
The price of a new car was 12,500 it is reduced to 11,625 work out the percentage reduction
Answer:
93%.
Step-by-step explanation:
% Decrease = Decrease ÷ Original Number × 100
Divde 11,625 by 12,500 and multiply the answer by 100.
11,625 ÷ 12,500 × 100 = 93
The percentage reduction is 93%.
3. Calculate the area of the shape below. *
6 cm
5cm
13 cm
Answer:
390cm³
Step-by-step explanation:
6cm×5cm×13cm= 30cm²×13cm= 390cm³
I need showing work for this question for finding the volume of it
Whats the y-int?
Whats the domain and range?
Answer:
Y intercept is (0,50) or b=50
On a bicycle ride, Betty rode 7 miles in 2 hours.
At the same rate of speed, how far could she ride in 8 hours?
Answer:
28
Step-by-step explanation:
I'm not sure if this is right
She rode 7 miles in 2 hours, so because she is going at the same speed you times/multiply 7 x 4 in order to determine the miles. I timed it by 4 because 2 hours times 4 = 8 hours.
Hope that helped because I believe it is right :)
I need help with all these questions
Answer:
Step-by-step explanation:
Mrs. Joyce baked apple pies for her family. The boys ate 2/3 of a pie and the girls ate 1/2 of a
pie. How much more pie did the boys eat than the girls?
The boys ate 1/4 more than the girl.
find the radius of the button
Answer:
radius of button = diameter / 2
= 5/2 = 2.5 cm
hope this will be helpful to you.
Which one is the height?
Answer:
The 3mm
Step-by-step explanation:
Answer:
3m is the height or altitude.
Q1: How do you divide a segment into given ratios?
Answer: To find the point P that divides a segment AB into a particular ratio, determine the ratio k by writing the numerator over the sum of the numerator and the denominator of the given ratio. Next, find the rise and the run (slope) of the line. Finally, add (k. the run) to the x-coordinate of A and add (k.
Step-by-step explanation: Hope this helps :)
GIVING BRAINLIEST!!!
Which statement best describes the expression (5 x 3 − 12) x 8?
A) Subtract the product of 5 and 3 from the product of 12 and 8.
B) Multiply the difference of 12 and 8 by the product of 5 and 3.
C) Multiply the difference of 5 and 3 by 8, then subtract 12.
D) Subtract 12 from the product of 5 and 3, then multiply by 8.
Answer:
D.
Explanation:
PEMDAS method. First do the parentheses. Multiply first, then subtract 12 from that number. Once finished with the parentheses, multiply by 8.
Solve for x:
x/7 - 6 = 3
A. 27
B. -63
C. -27
D. 63
Answer:
D. 63
Step-by-step explanation:
First, add 6 to both sides:
[tex]\frac{x}{7}[/tex] - 6 = 3
[tex]\frac{x}{7}[/tex] = 9
Multiply each side by 7
x = 63
So, the correct answer is D. 63
Simplify 6⋅ (x+3)
Apply the distributive property.
6x+6⋅3=x⋅76x+6⋅3=x⋅7
Multiply 66 by 33.
6x+18=x⋅76x+18=x⋅7
Move 77 to the left of xx.
6x+18=7x
Move all terms containing x to the left side of the equation.
subtract 7x7x from both sides of the equation.
6x+18−7x=06x+18-7x=0
Subtract 7x7x from 6x6x.
−x+18=0-x+18=0
Subtract 1818 from both sides of the equation.
−x=−18-x=-18
Multiply each term in −x=−18-x=-18 by −1
Multiply −1-1 by −1-1.
1x=(−18)⋅−11x=(-18)⋅-1
Multiply xx by 11.
x=(−18)⋅−1x=(-18)⋅-1
Multiply−18-18 by −1-1.
x=18
What is a solution? (think equations)
In terms of algebra and mathematics, a solution is basically the answer to any given equation. The solution of 20 = x + 12 is 8, the value of x.
what percent can you turn 3/2 into
Answer:
150℅
Step-by-step explanation:
3/2×100/1
2 in 100=50
so50×3=150℅
Twenty years ago a small town in Texas had a population of 10,000. The population has increased 8% each year since then. What is the current population of this town? a. The population of this town is approximately 46,609 b. The population of this town is approximately 115,292 c. The population of this town is approximately 256,140 d. The population of this town is approximately 109,856
Answer:
Not totally sure if this will help,
The answer is a: "The population of this town is approximately 46,609"
I just took the test and This was the correct answer. Hope this helps!
Answer:.
The population of this town is approximately 46,609
Step-by-step explanation:
a
Burt ran the length of the trail in his town’s park. There are 9 parts to the trail, and each part is the same length. Burt ran a total of 1.8 kilometers.
What is the length of each part of the trail?
Which quantity does this number line represent? A) less than 7 B) less than 6 C) greater than 6 D) less than or equal to 6
Answer:
b
Step-by-step explanation:
For every 1000 hits a YouTub channel gets it makes £3 from ad revenue.
How much will the YouTub channel make from each hit?
Do not round your answer.
Answer:
0.016
Step-by-step explanation:
In a lab experiment 360 bacteria are placed in a petri dish. The conditions are such that a number of bacteria is able to double every 8 hours. How many bacteria would be there after 19 hours to the nearest whole number 
Answer:
855 bacteria
Step-by-step explanation:
y= 360 * (x/8)
y= 360 * (19/8) = 855
Answer:
1867
Step-by-step explanation:
Can you please answer the question?
Answer:
I think it is (B)
Step-by-step explanation:
I hope that is useful for you
Tell what happens in the comment please :)
Choose the list that contains all of the possible rational solutions of
x4 – x3 – 3x2 – 8x + 20 = 0.
A. 1, 2, 4, –1, –2, –4
B. 1, 2, 3, 4, –1, –2, –3, –4
C. 1, 2, 4, 5, 20, –1, –2, –4, –5, –20
D. 1, 2, 4, 5, 10, 20, –1, –2, –4, –5, –10, –20
We want to choose the list that contains all the solutions of the given equation, by graphing it, we will see that the correct option is the first one, A.
So our equation is:
x^4 - x^3 - 3x^2 - 8x + 20 = 0.
The solutions of that equation are all the values of x such that the equation:
y = x^4 - x^3 - 3x^2 - 8x + 20
Intercepts the x-axis.
Then we can use a graphing tool to graph the polynomial and we will get the graph you can see below:
There we can see that there is only one solution, which is x = 2.
Then the correct option will be A, which is the smallest set that contains the solution (notice that all the sets contain it, so we choose the smaller one).
If you want to learn more, you can read:
https://brainly.com/question/13053190
2.142 Dag into gram and milligram
Answer:
21.42g 21420mg
Step-by-step explanation:
2.142x10=21.42g
2.142x10000=21420mg
5 in
3 in
8 in
4 in
Find the lateral surface area of the triangular prism.
A)
84 in?
B)
90 in?
o
96 in 2
D)
104 in
Answer:
I would say that C is the correct answer
Where should 0.3% be placed in the Venn diagram?
Answer:
C
Step-by-step explanation:
rational number because 0.3=3/10. it can be represented in terms of fraction.
The 0.3% should be placed in Rational numbers because 0.3% can be written as a fraction.
Rational numbers are numbers whose ratio or percentage can be expressed as a fraction.
From the information given:
[tex]\mathbf{0.3\% \ can \ be \ written \ as \ \dfrac{0.3}{100}}[/tex]
Natural numbers are numbers that are positive and they are whole numbers without a remainder.
Learn more about rational numbers here:
https://brainly.com/question/12088221
A group of 3 friends went to a movie. They paid $15 for a bucket of popcorn. All the
movie tickets were the same price. They paid $51.75 total. Which equation represents
the cost of the tickets?
Answer:
51.75- 15= 36.75
36.75/3= 12.25 per ticket
Answer:
51.75 - 15 / 3
Step-by-step explanation:
$15 for a bucket of popcorn is separate from the tickets, so you subtract that from the sum.
Then you should have 36.75.
36.75 / 3 = 12.25
I hope this helped!
Stay safe! <3