Solve the system of linear equations by elimination.
2x – y=0
3x – 2y = -3
Answers
Answer:
Point form: (3,6)
Equation form: x=3, y=6
Step-by-step explanation:
Add the equations in order to solve for the first variable. Then plug this value into the other equations in order to solve for the remaining variables.
Related Questions
A triangle has a perimeter of (12a^2 + 5a + 9b + 16) and side lengths (4a^2 + 9a - 8) and (2a + 2b + 10). What is the length of the third side?
I WILL GIVE BRAINLIEST !
Answers
Answer:
8x^2-6a+9b+14
Step-by-step explanation:
P=(12a^2 + 5a + 9b + 16)
(4a^2 + 9a - 8)+ (2a + 2b + 10) +(x)= (12a^2 + 5a + 9b + 16)
(4a^2+11a+2)+(x)=(12a^2 + 5a + 9b + 16)
subtract (4a^2+11a+2) from both sides
x= 8x^2-6a+9b+14
Answer:
ello luv
Step-by-step explanation:
how do you graph the equation -2x + 5y = 30. and what's the slope and the y intercept ?
Answers
Answer:
Slope:
3 /5
y-intercept:
− 6
Step-by-step explanation:
A rectangular playground is 18.2 meters by 12.75 meters.
a. i) Find its area in square meter.
Answers
Answer: 232.05 meters
What is the solution to the following equation?
5(2x - 6) + 20 = 10
оа
9
Ob
5
Ос
3
Od
2
Answers
Answer:
D. 2
Step-by-step explanation:
5(2x-6) + 20 = 10
10x - 30 + 20 = 10
10x - 10 = 10
10x = 20
x = 2
The measure of <ACD is 120. Find the measure of <ACB, <BCD, and <ACE.
Explain how you found the measure of <ACE.
Answers
Answer:
m∠ACB = 39°
m∠BCD = 81°
m∠ACE = 60°
Step-by-step explanation:
From the picture attached,
m∠ACD = 120°
Since, m∠ACD = m∠ACB + m∠BCD
x + (2x + 3) = 120°
3x + 3 = 120
3x = 117
x = 39
Therefore, m∠ACB = 39°
m∠BCD = (2x + 3) = 2(39) + 3
= 81°
Since, m∠ACE + m∠ACB + m∠BCD = 180° [Angles formed at a point on a straight line]
m∠ACE + 39 + 81 = 180
m∠ACE = 180 - 120
m∠ACE = 60°
How do you describe the principal square root of the 34? *
A. The square root of 34 is a rational number.
B. The square root of 34 is an irrational number.
C. The square root of 34 is not defined.
D. The square root of 34 can be a positive or negative number.
Answers
Answer:
B. The square root of 34 is an irrational number.
Step-by-step explanation:
The square root of 34 is a rational number if 34 is a perfect square.
Since 34 is not a perfect square, it is an irrational number.
Since the square root of 34 is not a perfect square, hence, the square root of 34 is an irrational number: Option B is correct.
Irrational numbers are numbers that cannot be written as a ratio of two integers.
Examples of irrational numbers are surd functions, euler's number, pi value.Most terminated decimals are also irrational numbers.Since the square root of 34 is not a perfect square, hence, the square root of 34 is an irrational number.
Learn more here: https://brainly.com/question/11864029
A university has announced that the average scholarship granted per student is $14,500, with a standard deviation of $6,800.
What is the z-score of a $10,000 scholarship? (Round to the nearest hundredth.)
What percentage of the students received a scholarship of $10,000 or more?
Answers
Answer:
Step-by-step explanation:
im sorry
what is measurement of
Answers
Explanation:
Ten people were asked to use their calculator to randomly generate a number between 1 and 100.
What is the chance that at least two people generated the same number?
Answers
Answer:
10% chance
Step-by-step explanation:
Answer:
Random numbers can be quickly and easily generated by using the graphing calculator.
Step-by-step explanation:
What is the decimal value of x in the equation 7x − 2 = 5x + 3?
Answers
Name the COEFFICIENT in the following expression: 7 + 12x
Answers
Answer:
12
Step-by-step explanation:
Please helpppppppppppppp
Answers
for 10 gallons you pay 30 dollars
A. Yes because the relationship each point has is constant.
B. 10 gallons equals $30
How can you use the Distributive Property to check your work when factoring? Once an expression has been factored, use the Distributive Property to expand the expression. The factored expression should be the original expression. Once an expression has been factored, use the Distributive Property to factor the expression. The factored expression should be the original expression. Once an expression has been factored, use the Distributive Property to factor the expression. The expanded expression should be the original expression. Once an expression has been factored, use the Distributive Property to expand the expression. The expanded expression should be the original expression.
Answers
Answer:
Once an expression has been factored, use the Distributive Property to expand the expression. The expanded expression should be the original expression.
Step-by-step explanation:
The distributive property for any binary operation Ф under * in the given set S where a, b, c ∈ S
The binary operation a * (b Ф c) = (a * b) Ф (a * c) .
The operation * distributes over the operation Ф.
Now, when factoring, suppose we have an expression ab + ac. To factor this, we have a(b + c).
To check that our answer is correct, since the expression has been factored, we then distribute the multiplication over the addition to check if the factorization is correct.
So, a(b + c) = ab + ac which is our initial expression.
So, to use the distributive property to check work when factoring, once an expression has been factored, use the Distributive Property to expand the expression. The expanded expression should be the original expression.
The way to use the Distributive Property to check your work when factoring is;
Option D; Once an expression has been factored, use the Distributive Property to expand the expression. The expanded expression should be the original expression.
The distributive property in algebra is expressed as; a(b + c) = ab + ac
Now, to use the distributive property to check the work when factoring, we have to expand the factored form first.
For example, we have; 2(3 + 4)
From distributive property, we have;
(2 × 3) + (2 × 4) = 14
This should be the same with the original factored expression; 2(7) = 14
Thus, the method is Once an expression has been factored, use the Distributive Property to expand the expression. The expanded expression should be the original expression.
Read more about distributive property at; https://brainly.com/question/2807928
Marshall solved an equation using the process below.
Use the multiplication property of equality twice, by first multiplying both sides of the equation by x and then dividing both sides by 3.25.
Which equation is the one Marshall solved?
Answers
Answer:
b
Step-by-step explanation:
Could someone help me?
Why does x^4 * x^-4 = 1?
Answers
Answer:
Step-by-step explanation:
when you have a negative exponent, you are going to have a fraction. Example: 2^4 * 2^-4= 2^4 is 16 2^-4 is 1/16.
You get the 16 but because it was a negative exponent, the 16 goes on the bottom. 16 as a fraction is 16/1.
When you multiply 16/1 and 1/16. It comes up to 16/16 or 1.
Does this help?
Answer:
below
Step-by-step explanation:
We can use the product rule of exponents to solve [ x^y * x^z = x^y+z ].
x^4 * x^-4 = 1
x^4+(-4) = 1
x^0 = 1
1 = 1
Best of Luck!
Nick and Michelle are searching for a treasure chest underwater. The straight line distance between them is 100 meters. Given the angles in the diagram, who is closers to the chest and why ?
Answers
Answer:
Michelle is closer to the treasure chest.
Step-by-step explanation:
If you didn't know, the smallest angle is opposite the smallest line, and it goes the same way for larger angles.
65 degrees is opposite Michelle's line, making her line shorter.
Give two reasons why this shape is a square when x=5.
Answers
Answer:
First of all, we can see that this shape have 4 90° angles.
Secondly, since x = 5 we have:
3 × 5 -2 = 15 - 2 = 13 (cm)
And: 5 + 8 = 13 (cm)
=> The two adjacent sides that make up the angle is equal to each other
So this shape is a quare.
=> This shape is a square.
Step-by-step explanation:
Geometry Homework :))
Answers
Answer:
B
Step-by-step explanation:
Answer:
The question has two correct answers A and B.
Step-by-step explanation:
A is the component form of a vector
B is words
What is the area of rectangle PQRS with vertices at P(0,2), Q(0, 10), R(4,10) S(4,2)
Answers
what is dislocation
Answers
Answer:
The distance between the starting point and the end point
Step-by-step explanation:
Please help with this
Answers
Answer:
9 is your answer. It's a simple equation.
what is the slope of the line?
Answers
Answer:
2 over 4
Step-by-step explanation:
First you find a point on the line that is a whole number then look for the next one on the line and us rise over run to find slope
I suck and need help lol
Answers
Answer:
C
Step-by-step explanation:
Answer:
40%
Step-by-step explanation:
0.15+0.25=0.40 which equals 40%
Carols den is 8 feet longer than it is wide. If the dens area is 209 square feet what are the dinensions of the room?
Answers
Answer:
12 42
Step-by-step explanation:
Naomi has a toy car collection of 300 toy cars. She keeps 243 of the toy cars on her wall. What percentage of Naomi's toy car collection does she keep on her wall?
Answers
Answer:
81% or .81
Explanation:
243 ÷ 300 = .81
Questions
1. There are 12 pieces of fruit in a bowl and 2 of them are
apples. What percentage of the pieces of fruit in the bowl are
apples?
Answers
Highlight the number that represents the percentage of pieces of fruit
in the bowl that are apples. (1 point)
A.
0.02%
B.
0.17%
C.
2%
D.
17%
2. Lin's family has completed 30% of a trip. They have traveled
60 miles. How far is the trip? (Hint: You can use a tape diagram,
Highlight the answer that shows how far Lin's family trip is. (2 points)
Answers
Answer:
1. D) 17%
2. 200 miles
Step-by-step explanation:
For the first question we can turn the information into a fraction, with the total number of pieces of fruit in the bowl (12) as the denominator and the number of apples (2) as the numerator.
[tex]\frac{2}{12}[/tex]
Then, divide:
2/12 = 0.17 = 17%
For the second question, we set up a proportion. We know that 60 miles corresponds to 30% and the whole distance of the trip, x, corresponds to 100%
[tex]\frac{60}{x} = \frac{30}{100}[/tex]
Cross multiply and solve:
60 * 100 = 30x
6000 = 30x
200 = x
plz answer quick like 3 min
Answers
Answer:
Step-by-step explanation:
It would be 1 dollar and 3 dimes, 5 quarters and 1 nickel, since 1.25 + .05=1.3
13 dimes. and finally 26 nickels
Answer:
1 dollar and 3 times
5 quarters and 1 nickel
13 times
and 26 nickels
Step-by-step explanation:
they all equal $1:30
in math class, the girl to boy i 8 to 6. if there are 24 girl in the class, how many boy are there?
Answers
Answer:
[tex]\huge\boxed{\text{18 boys}}[/tex]
Step-by-step explanation:
This is basically just a ratio. If the ratio between the amount of girls to the amount of boys is 8 to 6, then we can create a fraction (girls/boys)
[tex]\frac{8}{6}[/tex]
Using what we know about the second statement (24 girls) we can make a ratio like this (also assuming girls/boys)
[tex]\frac{24}{x}[/tex]
Since the ratios must be equal, we can set them equal to each other.
[tex]\frac{8}{6} = \frac{24}{x}[/tex]
We can cross multiply to find x.
[tex]24 \cdot 6 = 144\\\\144 \div 8 = 18[/tex]
So there are 18 boys.
Hope this helped!
What is 60% of 30? A. 24 B. 12 C. 21 D. 18
Answers
Answer:
18
Step-by-step explanation:
60% 0f 30 is 18
D. 18
how to solve this geometry problem?
Answers
Answer:
x=7 A=41
Step-by-step explanation:
You do 180-69=111. You know that 11x-7 goes inside and then you do 11x-7+4x+13=111. You get x=7. Multiple 4x7=28+13=41
