Viet solved a quadratic equation. His work is shown below. In which step did Viet make an error? Step 1,2,or 3?
Answers
Answer:
Step 1
Step-by-step explanation:
he added 4 to the other side instead of taking away 4
Answer:
step 1
Step-by-step explanation:
Related Questions
Which of the following is an equation of the line in the graph?
the choices:
A. 3x − y = 4
B. 3x + y = 4
C. −3x − y = 4
D. −3x + y = 4
Answers
Answer:
The answer is choice D.
which unit would be best for measuring the thickness of a coin meter , centimeter , millimeter or kilometer
Answers
Answer:
milimeter
Step-by-step explanation:
Plz give brainliest it the crown
You have a pizza with diameter 12
2
3 in., and a square box that is 12.65 in. across. Write 12
2
3 as a decimal. Can you fit the pizza inside the box?
What is the decimal expansion for 12
2
3?
A.12.6
B.12.65
C.12.6
D.12.66
pls help me
Answers
Answer:
D is the right choice and no you cannot fit the pizza inside the box.
Step-by-step explanation:
D is the answer because to turn 2/3 into a decimal you would divide 2 by 3 and the answer you would get would be 0.66666666666...You would then add 12 to the answer and get 12.6666... Once you get this answer you would round it to the hundredths to get 12.67 but since that is not an option you could use D, 12.66 inches.
Answer:
I believe the answer is D.
Step-by-step explanation:
Write a number sentence to represent the sum modeled on the number line. In two or more complete sentences, explain your reasoning.
plssss helppppppp
Answers
0 + (-2.5) + 5. I did the math in my head and checked it its correct
Best of luck!!
0+(-0.25)+2.5 is a number sentence to represent the sum modeled on the number line
What is Number system?A number system is defined as a system of writing to express numbers.
A number line can be defined as a pictorial representation of numbers on a straight line.
In the number line the red line starts at the point zero and reaches till minus two point five. The blue line starts at minus two point five and reaches till two point five. Which it adds five units to reach two point five.
So 0+(-0.25)+2.5
Hence 0+(-0.25)+2.5 is a number sentence to represent the sum modeled on the number line
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In 2020, Forest A had an area of about 4000 acres and Forest B had an area of about 3600 acres. Researchers expect deforestation to cause the area of Forest A to decrease at a rate of 105 acres per decade and the area of Forest B to decrease at a rate of 30 acres per decade. In what year do they expect the areas of the forests to be the same?
Answers
Answer:
In about 2073, 3440 acres
Step-by-step explanation:
Determine the equation for each forest. Forest A: y=-105x+4000 Forest B: y=-30x+3600There are a number of ways to solve a system of equations, but for this we are first going to solve for x when -105x+4000=-30x+3600. In this case, x=5 1/3.Then, we are going to plug 5 1/3 in as x into one of our equations. To double check you have this right, you may do both. If our equation is y=-30(5 1/3)+3600, then y=3440.Add 5 1/3 decades or about 53 years to 2020.Therefore, they expect the area of the forests to be the same in about 2073. At this time, both will have an area of about 3440 acres.
In 2073 the areas of the forests to be the same.
What is Equation?Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides. LHS = RHS is a common mathematical formula.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given:
Forest A had an area of about 4000 acres and Forest B had an area of about 3600 acres.
If Forest A to decrease at a rate of 105 acres per decade and the area of Forest B to decrease at a rate of 30 acres per decade.
let the number of decades occur be x
So, the equation is
4000 - 105x= 3600 - 30x
400 = 75 x
x= 5.33
x= 53.3 years
Hence, In 2073 the areas of the forests to be the same.
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Beth is half as old as Meg. Enter an algebraic expression based on this situation.
The algebraic expression for this is ____________
Answers
Answer:
b = 1/2m
Step-by-step explanation:
Let:
b = beth's agem = meg's ageThe prompt tells us that Beth is half as old as Meg. Therefore, mathematically, b = 1/2m.
PLEASE HELPPPPPPPPPPPPPPPPPPPPPPPP! Would love the answer as soon as possible.
Answers
86 +62= 148
X=148
Do i need to explain why you do it that way
What is the value of x?
Answer: x=148
Find the volume of a prism. Show your work.
Answers
Answer:
Step-by-step explanation:
11 times 22
the area of its cross-section multiplied by the length
answer: 242cm squared
Help please I will give brainleist
Answers
Answer:
The answer is 80%
I'LL GIVE BRAINLIEST!!
( True / False ) Force is used in aristocracy.
If true how?
If false why?
Answers
Answer:
true
Aristocracy is a form of government in which political power is held by a select few privileged people called aristocrats or nobles. Coming from a Greek word meaning “rule by the best,” aristocrats are considered the most qualified to rule because of their moral and intellectual superiority.
elizabeth completely covered a square wall using 98.5ft squared with blue paint. which measurement is closest to the side length of this wall in feet?
49ft
8ft
25ft
or 10ft
Answers
What is the area of this trapezoid?
A. \(12\frac{1}{4}\)²
B. \(24\frac{1}{4}\)²
C. \(73\frac{1}{2}\)²
D. \(143\frac{1}{2}\)²
![What is the area of this trapezoid? A. [tex]12\frac{1}{4}[/tex] B. [tex]24\frac{1}{4}[/tex] C. [tex]73\frac{1}{2}[/tex]](https://i5t5.c14.e2-1.dev/h-images-qa/contents/attachments/RKz8jTjHr2f6HSU9Za6OZOOIpcuiGvWr.jpeg)
Answers
Answer:
A. \( 12 \frac{1}{4} \: {cm}^{2} \)
Step-by-step explanation:
Area Of of the trapezoid
\( = \frac{1}{2} (7 + 5 \frac{1}{4} )2 \\ \\ = 7 + \frac{21}{4} \\ \\ = \frac{28 + 21}{4} \\ \\ = \frac{49}{4} \\ \\ = 12 \frac{1}{4} \: {cm}^{2} \)
WILLING TO HELP SOMEONE OUT?? GOOD AT ALGEBRA 2?? THEN COME TO THIS QUESTION AND ANSWER IT!! ALL HELP IS APPRECIATED.
(25 POINTS) GREAT VALUE SO WHAT ARE YOU WAITING FOR????
Answers
B = 1 - 9m^2
2A - B
2(m^2 - 9m) - 1 - 9m^2
2m^2 - 18m - 1 - 9m^2
Combine liked terms
-7m^2 - 18m - 1
Answer:
-7m^2 - 18m - 1
(Hopefully this is what you’re asking for)
in a bouquet of flowers,there are 2 days and 15 roses write the ratio of daisies to roses as a fraction
Answers
if theres 2 and 15, its just 2 of that to 15 of the other
its 2:15 or 2/15 or whatever way you want to write a ratio
fun fact:
The Hog Rider card is unlocked from the Spell Valley (Arena 5). He is a quick building-targeting, melee troop with moderately high hitpoints and damage. He appears just like his Clash of Clans counterpart; a man with brown eyebrows, a beard, a mohawk, and a golden body piercing in his left ear who is riding a hog. A Hog Rider card costs 4 Elixir to deploy.
In the diagram, △ABC∼△DEF. The area of △ABC is 180 square centimeters. Find the area of △DEF.
pls pls pls help me answer
Answers
Answer:
20
Step-by-step explanation:
The first step is to find out the similarity reason of the sides of the triangle, so we just divide the big side by the small side (12/4=3).
Now, for the similarity reason of the areas, we just square that number (3^2=9).
Then we just divide the area of the big triangle by 9, which is 180/9= 20.
Two figures are known as similar figures if there the corresponding angles are equal and the corresponding sider is in ratio. The area of the △DEF is 20cm².
What are Similar Figures?Two figures are known as similar figures if there the corresponding angles are equal and the corresponding sider is in ratio. It is denoted by the symbol "~".
Given △ABC∼△DEF, therefore, the sides will be in a particular ratio,
Ratio = AB/DE = 12/4 = 3
Also, the area of △ABC is 180 square centimeters. since the area is a two-dimensional quantity it will be the product of two sides, therefore, the ratio will also be multiplied twice. Thus, the area of △DEF will be 1/9 of the area of △ABC. Hence, the area of △DEF is,
△DEF = △ABC/9
△DEF = 180cm²/9 = 20cm²
Hence, the area of the △DEF is 20cm².
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The point (−6, 2) is reflected over the line y = 5. What is the y-coordinate of the reflected point?
Answers
And the y intercept is -3
Do you need steps or is this good
15 POINTS
Ann had twice as many candies as Susan. Then Ann ate 3 of her candies.
This can be modeled using the following equation:
A = 2s - 3
Solve the equation for the number of candies Susan has, S
S = A + [?]/[?]
Answers
Answer: S = \(\frac{A}{2}\) + \(\frac{3}{2}\)
Step-by-step explanation: Isolate S by timesing it by 2, which means you have to times A and 3 by two and take S to the other side of the equation which makes the minus into a plus.
Answer:
\(S=\frac{A+3}{2}\)
Step-by-step explanation:
The original equation is:
A=2S-3
But, we are now solving for S, so we have to isolate S.
To do this, we first must add 3 to both sides:
A+3=2S
Next, divide both sides by 2:
\(\frac{A+3}{2}=S\)
Hope this helps! :)
Select the appropriate linear equation for the trend line.
A. y = x + 1
B. y = -x – 1
C. y = x - 1
D. y = -x + 1
Answers
Answer:
A y = x + 1
Step-by-step explanation:
The line starts at 1 on the y-axis so the u intercept will be 1
Answer:
A. y = x + 1
Step-by-step explanation:
Line is passing through the points (0, 1) & (2, 3)
slope of line (m) =(3 - 1)/(2 - 0) = 2/2 = 1
y- intercept (b) = 1 [since y -coordinate in (0, 1) is 1]
Equation of line slope-intercept form is given as:
y = mx + b
plugging the values of m and b in the above equation, we find:
y = (1)x + 1
y = x + 1
what is the result of 8 divided by 3/8
Answers
Answer:
21 \(\frac{1}{3}\)
Step-by-step explanation:
Don't really know how to explain this over a computer, other than use a calculator.
Hope that this helps!
Explanation:
Quite hard to explain but I did it but dividing 8 and 3 and and multiplying that answer by 8.
HELP ASAP DUE AT 8:30!!!
Answers
Answer:
someone already answered?
Step-by-step explanation:
oh
Answer:
2, 3, 5, 7, 11, 13, 17 and 19
150
/ \
10 15
/\ /\
2 5 3 5
2,3,5,5
Step-by-step explanation:
Note: Enter your answer and show all the steps that you use to solve this problem in the space provided.
Write a list of steps that are needed to find the measure of ∠B.
Answers
Answer:
5 degree75 drgreeStep-by-step explanation:
hope I was correct
Answer: hope this helps ♡
The measure of ∠B is 41°
ANSWER FAST PLZZZZZZZWhich expression can be used to find the value of the expression below?
Answers
the answer is c
hope this helps
Can somebody help due at 10AM
The figure shows a line graph and two shaded triangles that are similar:
Which statement about the slope of the line is true?
The slope from point O to point A is fraction 1 over 4 time the slope of the line from point A to point B.
The slope from point O to point A is four times the slope of the line from point A to point B
It is 4 throughout the line.
It is fraction 1 over 4 throughout the line.
Answers
Answer:
The slope from point O to point A is fraction 1 over 4 time the slope of the line from point A to point B.
Step-by-step explanation:
What is the measurement of the longest line segment in a right rectangular prism that is 11.2 centimeters long, 6.6 centimeters wide, and 6 centimeters tall?
Answers
Answer:
Step-by-step explanation:
3.1313109
Answer: the answer should equal 3.131
Step-by-step explanation: as this is the measurement of the longest line in right rectangular prism.
Please got brainliest
For each ride, a taxi service charges an initial fee plus an additional fee based on the number of kilometers of the trip. The graph shows the cost for taxi rides. Select a true statement. The rise is 4 while the run is 2. The selection of answers are:
A: The slope is 2.1. This means that each kilometer costs $2.10.
B: The slope is 5. This means that each kilometer costs $5.
C: The y-intercept is 2.1. This means that the initial fee is $2.10.
D: The y-intercept is 5. This means that the ride lasts 5. kilometers.
Which one is right and why?
Answers
THIS MIGHT NOT BE WHAT YOU ARE LOOKING FOR AND MIGHT NOT BE CORRECT! READ FIRST!
The answer is A. The slope of the line is rise/run = 4/2 = 2.1. This means that each kilometer costs $2.10. The y-intercept is 2.1, which means that the initial fee is $2.10. So the correct statement is: The slope is 2.1. This means that each kilometer costs $2.10.
The other statements are incorrect. The slope is not 5, so each kilometer does not cost $5. The y-intercept is not 5, so the ride does not last 5 kilometers. The y-intercept is the value of the function when the input is 0, which in this case is the initial fee of $2.10.
Consider the situations in the table below
Situation A: A hang glider descended 33.57 feet, and then ascended 14.98 feet.
Situation B: A football team gained 7 2/5 yards in one play, and then lost 3/5 of a yard in the next play.
Situation C: A hiker walked 3 1/6 miles yesterday and 2 1/2 miles today.
Situation D: A worker earned $23.66 Monday and spent $15.84 Tuesday.
Calculate the sum of each situation. Order the situations from least to greatest based on the numeric value of the sums.
Answers
Answer:
Step-by-step explanation:Situation A: The hang glider descended 33.57 feet and again ascended 14.98. So 33.57 - 14.98 = 18.58. So now the hang glider is at 18.58 feet
Situation B: Initially they gained 7 2/5 yards and then lost 3/5 yards.
7 2/5 yards can be written as 37/5. As they lost 3/5 yards, 37/5 - 3/5 = 34/5. So the remaining yards are 34/5 yards.
Situation C: Hiker walked 3 1/6 miles and then 2 1/2 miles. So the total distance is 3 1/6 + 2 1/2 = 5 4/6 miles.
Situation D: Total amount earned is $23.66 + $15.84 = $39.5.
Answer:
Step-by-step explanation:Situation A: The hang glider descended 33.57 feet and again ascended 14.98. So 33.57 - 14.98 = 18.58. So now the hang glider is at 18.58 feet
Situation B: Initially they gained 7 2/5 yards and then lost 3/5 yards.
7 2/5 yards can be written as 37/5. As they lost 3/5 yards, 37/5 - 3/5 = 34/5. So the remaining yards are 34/5 yards.
Situation C: Hiker walked 3 1/6 miles and then 2 1/2 miles. So the total distance is 3 1/6 + 2 1/2 = 5 4/6 miles.
Situation D: Total amount earned is $23.66 + $15.84 = $39.5.
Step-by-step explanation:
using the ordered pairs (x, y) in the table
what is the proportionality constant or the rate of change?
Answers
find the length and width of the rectangular field with an area of 72^2 centimeters? the total length of fence surrounding the field is 44 centimeters.
Answers
Answer: w=117.82 cm and L=44 cm
Step-by-step explanation:
72^2 = 5184 cm
5184/44 = about 117.82 cm
72^2=5184 cm
5184/44=117.82cm
solve this please asap
Answers
x < -9=?
plsssssssssss help
Answers
Answer:
any number below -9, or any regular number.
please give brainliest ☻︎
Explanation: The domain is anything under -9 () means not including
Infinity is never included