Mary wanted to solve the system of equations shown. She first used row reduction to get the system into 2 equations with 2 variables, x and y. She then used her calculator and got the graph shown. What is the solution to her system?
Answers
Answer: (2, -1, 3)
Step-by-step explanation:
The graph shows you that x=2 and y=-1 so, plug those values back into one of the equations to solve for z. You should get z=3 giving you a solution of (2, -1, 3).
Related Questions
8. The soccer ball has a diameter of 9 inches. Find its volume.
Answers
Answer:
You do need to be more specific, the volume of a sphere is V = 4/3 π r^3, it does not need to be related to a cylinder. So if you know the radius, you can calculate the volume. The volume of a cylinder with the same radius and with a height of 2r (since it would be the diameter across) would be V = π r^2 h = 2π r^3.
Step-by-step explanation:
10 m =_____ mm hurry pls .
Answers
Answer:
10,000 mm
Hope that helps!
Step-by-step explanation:
Answer:
10000 mm
Step-by-step explanation:
1m = 1000mm
10 x 1000 = 10000mm
In a sample of students, 12 out of 24 students in a class wanted a sandwich for lunch. Using the data from the sample, predict how many students would want sandwiches for lunch in a school of 400.
A 200
B 250
C 300
D 100
Answers
Answer:
200
Step-by-step explanation:
good luck :)
You have three sticks. Each stick has one red side and one blue side. You throw the sticks 10 times and record the results. Use the table to find the experimental probability of the event.
Answers
Answer:
4 + 4 + 2 = 10
3) 3/10 or 0.3
4) 2/10 = 1/5 or 0.2
5) 4/10 = 2/5 or 0.4
6) 2 + 4 + 0 = 6 so 6/10 = 3/5 or 0.6
i think its this. i hop i helped?
Step-by-step explanation:
Please help 10 points
Answers
Answer:
i think a
Step-by-step explanation:
Help me out! I'm begging
Answers
Answer:
B
Step-by-step explanation:
(6.8 X10)–(7.2 X 10)
1.1 X 104
X 10
Go to two decimal places
Answers
Answer:
5.53 * 10^-1
Step-by-step explanation:
[(6.8 * 10^3) - (7.2 * 10^2)] ÷ 1.1 * 10^4
(6800 - 720) ÷ 11000
6080 ÷ 11000
6.08 * 10^3 ÷ 1.1 * 10^4
(6.08 ÷ 1.1) * 10^3-4
5.527 * 10^-1
= 5.53 * 10^-1
What is the solution to the system of equations?
(-6,4)
(-5, 4)
(-3, -2)
(0, 1)
Answers
Answer:
(0,1) is the answer
Step-by-step explanation:
hope it helped!!!
Some body help me with this pleaseeeee
Answers
Answer:
16 4/5
Step-by-step explanation:
1. Divide 5 3/5 by 2 (2 4/5)
2. Multiply 2 4/5 by 2 and multiply 5 3/5 by 2 (5 3/5) (11 1/5)
3. Add them together (16 4/5)
exercise 8
Let x be a positive integer.
Answers
(-3)^(14-9=5) = -3^5
answer this question for 25 points and brainliestt
Answers
Answer:
-10, square root of 100, square rout of 220, 11.5
Step-by-step explanation:
Which equation is y = (x + 3)2 + (x + 4)2 rewritten in vertex form?
y = 2 (x + seven-halves) squared minus one-fourth
y = 2 (x + seven-halves) squared minus one-half
y = 2(x + 7)2 – 73
y = (x + 7)2 – 24
Answers
Answer:
The person above is correct B)y=2(x+7/2)²+1/2
Step-by-step explanation:
y = 2 (x + seven-halves) squared plus one-fourth equation is y = (x + 3)² + (x + 4)² rewritten in vertex form.
What is vertex form?If the vertex is (a, b), then the vertex form of an equation can be written as y = p(x-a)² + b, p is a constant.
How to solve this problem?Here, y = (x + 3)² + (x + 4)²
i.e. y = x² + 6x + 9 + x² + 8x + 16
i.e. y = 2x² + 14x + 25
i.e. y = 2x² + 2*2*(7/2)x + (7/2)² - (7/2)² + 25
i.e. y = 2(x + 7/2)² + 25/2 - 49/4
i.e. y = 2(x + 7/2)² + (50 - 49)/4
i.e. y = 2(x + 7/2)² + 1/4
Therefore, y = 2 (x + seven-halves) squared plus one-fourth equation is y = (x + 3)² + (x + 4)² rewritten in vertex form.
So, no option is correct.
Learn more about vertex form here -
https://brainly.com/question/27614899
#SPJ2
please help i really need it
Answers
Answer:
b
Step-by-step explanation:
i did that one in class it was right.
17. There are 1,024 players in a tennis tournament. In each round, half the players are eliminated.
Which function can be used to find the number of players remaining in the tournament at the end of
x rounds?
A f(x) = 1,024(1.50)
B f(x) = 1,024(0.50)*
C f(x) = 1,024(1.05)
D f(x) = 1,024(0.50)x
Answer?
Answers
Answer:
1024(0.50)^x
Step-by-step explanation:
Initial value = 1024
Players eliminated per round =half = 50% of players in the round
Using the relation :
A(x) = P(1 - r)^x (decreasing hence, negative)
A(x) = 1024(1 - 50%) ^x
A(x) = 1024(1 - 0.50)^x
A(x) = 1024(0.50)^x
What is 11/12 + 2 1/6 ?
Either decimal or fraction.
Answers
Answer:
3.0833
Step-by-step explanation:
i dont know how many 3's
Answer: 37/12
Step-by-step explanation: First you must turn 2 1/6 into a improper fraction, so 2x6 + 1 will get you 13 as the numerator and the denominator will be 6 so now we have 13/6 + 11/12. Now we must turn the denominator for 13/6 into 12 so, 13x2/6x2 so it is 26/12 so now the equation is 26/12 + 11/12 is 37/12.
Name this figure.
A. Trapezoid
B. Rhombus
C. Rectangle
D. Parallelogram
HELP NOW PLEASE !!!!
Answers
Answer:
The figure is a Rhombus.
Step-by-step explanation:
Cause well it looks like a Diamond pretty much. Hope this helps.
Answer:
Parallelogram.
Step-by-step explanation:
This is a rhombus but all rhombus's are considered parallelograms.
Hope this helps!
A tire on Tom's car weighs 21 2/3 pounds. All 4 tires have the same weight. Which is the total weight of the 4 tires on Tom's car?
Answers
Answer:
86.6666666667
Step-by-step explanation:
Because one of Tom's car wheel weighs 21 2/3 pounds, you would have to multiply 21 2/3 pounds by 4 to get the amount of pounds that all the tires weigh; which makes the answer:86.6666666667
Answer:
86 2/3
Step-by-step explanation:
you multiply 21 × 4 and get 84
multiply 2 × 4 and get 8
Divide 8/3 and get 2 2/3
add 2 to 84
and leave the 2/3
Reagan will use a random number generator 1,200 times. Each result will be a digit from 1 to 6 . Which statement best predicts how many times the digit 5 will appear among the 1,200 results?
Answers
Answer:
i think its b
Step-by-step explanation:
Hope it helps have a great day :)
how much does an x box emulator cost and what does it do??? Will give brainliest to first right answer!!!
Answers
Answer:
113.44
Step-by-step explanation:
It can emulate the BIOS and many games at very slow speeds but is sometimes faster than Cxbx with acceptable graphics
What is the equivalent exponential expression for the radical expression below help last time
Answers
Answer:
A
Step-by-step explanation:
B is wrong because 5^2 = 25
C is wrong because 5 is not equal to √5
D is wrong because 25 is not √5 but 5^2
1) Herman made 2 bowls of fruit salad. He used 7 kilograms of melon in all. How many kilograms
of melon, on average, were in each bowl?
Answers
Moe painted the lid of the barrel. The circumference of the barrel is 32*3.14 inches. What is the area of the lid in square inches?
Answers
Answer: 803.84 inch²
Step-by-step explanation:
The lid will take the appearance of a circle so the area of the lid is the same as the area of a circle:
Area of a circle = π * radius²
The circumference of a circle is:
= π * diameter
Looking at the above, the diameter is 32inches because this is the figure to be multiplied with π = 3.14 to find the circumference.
Since diameter is 32, radius will be:
= 32 / 2
= 16 inches
Area = 3.14 * 16 * 16
= 803.84 inch²
Help me please I’ll give extra points
Answers
U( -4,-6)
Now( 6,-4)
S( -8,-10)
Now (10,-8)
T(-3,-10)
Now(10,-3)
ILL BRAINLIEST YOU IF YOU GET IT RIGHT
please explanation
Answers
Answer:
I thinks
Step-by-step explanation:
the best answer ill give Brainliest i may give it to more than one
Answers
Answer:
a) y = -2/5x + 3 b) (20, 19)
Step-by-step explanation:
a) slope of PQ => 24-9/22-16 = 15/6 = 5/2
perpendicular line have negative reciprocal slope = -2/5
substitute the new slope -2/5(m) and (5, 1) into the equation: y = mx + c to find the value of c
=> 1 = -2/5(5) + c
=> c = 3
plug in both the slope -2/5(m) and b = 3 into the equation: y = mx + c
=> y = -2/5x + 3
b) (2/3(22 -16), 2/3(24 - 9))=> (4, 10)
(16, 9) + (4, 10) = (20, 19)
hurry pls i'm giving away 22 point because i only have 35
Answers
Answer:
the median is the middle. you line all the numbers up from lowest to highest, and the middle number is the median
32, 37, 38, 40, 50, 52, 55, 57
45 is the answer. the midle is 40, and 50, and 45 is right in the middle of those numbers
2. A chemist has a 25% and a 50% acid solution. How
much should be used to form 250 mL of a 35% acid
solution?
A) 80 mL of 50% solutions and 120 mL of 25% solution
B) 150 mL of 50% solution and 50 mL of 25% solution
© 60 ml of 50% solution and 140 mL of 25% solution
D) 50 mL of 50% solution and 150 mL of 25% solution
E) None of the above
Answers
Answer:
x is mL of 25% acid and y is mL of 50% acid
We set up 2 equations:
A) x + y = 250
B) .25 x + .50y = .35 * 250 which equals
B) .25x + .50y = 87.50 Multiplying A) by -.5
A) -.5x -.5y = -125 adding the equations we get
-.25x = -37.50
x = 150 mL
y = 100 mL
Source: http://www.1728.org/mixture.htm
Step-by-step explanation:
Answer:
x is mL of 25% acid and y is mL of 50% acid
Step-by-step explanation:
A meal that costs $20 has a sales tax of $1.90. What's the sales tax on a meal that costs $75?
Answers
True or False:
x2 and -2x2 are like terms
Answers
Answer:
true i think....
Step-by-step explanation:
like terms have the same variables but don't need to have the same coefficients.
In algebra, like terms are terms that have the same variables and powers. The coefficients do not need to match. Unlike terms are two or more terms that are not like terms, i.e. they do not have the same variables or powers.
PLEASE HELP AND I WILL GIVE U A CHOCOLATE
Answers
Answer:
B is the answer
Step-by-step explanation:
(√(1.5³ * 1.5⁷))/1.5²
√ 1.5 ^(3+7) ÷ 1.5²
√1.5^10 ÷ 1.5²
1.5⁵ ÷ 1.5²
1.5^(5-2)
1.5³
Answer:
I think it is c I hope it helps have a good day