complete square to solve
3x^2 + 12x – 9 = 0
Answers
Answer: I hope this answer your question
Step-by-step explanation: Have a brilliant day mate- Lily ^_^
Related Questions
write x^2+8x+3 in the form of (x+a)^2-b
Answers
Answer:
(x+4)²-3
Step-by-step explanation:
x x=x²
4 4 =8
then +3
but a plus and a minus makes a minus so it would be -3
Y'all don't make fun of me or anything my brains not working but this is a real question a triangle is 3 sides and a square has 4 right or is the other way around?
Answers
Answer:
Lol, you're correct no worries!
Step-by-step explanation:
Yes a triangle has 3 sides and a square has 4 sides :)
How many solutions does the equation have? -10(x - 1) = 10 - 10x *
O Zero Solutions
O 1 Solution
O Infinite Solutions
Answers
Answer:
infinite
Step-by-step explanation:
it results in 10-10x=10-10x if you simplify
can also be simplified more into x=x
but we already know x has to equal x.
1 What number is equivalent to the expanded form shown below?
A.203.043
B.203.403
C.230.430
D.230.403
Can someone help me with this
Answers
Answer
B
203.403
Cancel terms that are in both the numerator and denominator
( 2 1 0 0 ) + ( 3 1 ) + ( 4 1/1 0 ) + ( 3 1/1 0 0 0 )
( 2 1 0 0 ) + ( 3 1 ) + ( 2 1/5 ) + ( 3 1/1 0 0 0 )
Solution
( 2 1 0 0 ) + ( 3 1 ) + ( 2 1/5 ) + ( 3 1/1 0 0 0 )
If departure time of a train is 03 45 and arrival time is 04 50. What will be the journey time? * A)1 h 20 min B)1 h 10 min C)1 h 05 min
Answers
Answer:
C)1 h 05 min
Step-by-step explanation:
If departure time of a train is 03 45 and arrival time is 04 50. What will be the journey time? * A)1 h 20 min B)1 h 10 min C)1 h 05 min
The journey time is calculated as:
Arrival time - Departure time
= 04:50 - 03:45
= 01:05
Therefore, the journey time = 1 hr 05 minutes
Option C is correct
help me with this answer please <3
Answers
Answer:
(x, y) = (-8, 19)
Step-by-step explanation:
9x + 3y = -15
-4x - 3y = -25
(9x + 3y) + ((-4x) - 3y) = -15 + (-25)
5x = -40
x = -8.
So,
9x + 3y = -15
9 * (-8) + 3y = -15
-72 + 3y = -15
3y = 57
y = 19
Mr. Seoul left $48,000 to his family when he died. If he left 66 2/3% to his wife, how much did she receive?
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What percent decrease when the balance in a bank account goes from $300 to $60?
The percent decrease is 20%
The percent decrease is 25%
The percent decrease is 80%
The percent decrease is 87%
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What is the probability that a student who plays an instrument is in band
Answers
Answer:
20/25
Step-by-step explanation:
Here, we want to calculate the probability that a student who plays an instrument is in band
The number of students who play instruments are;
25
Amongst this,
20 are in a band
So the probability of having a student who plays instrument and is in a band will be;
20/25 = 4/5
A tissue box has a length of 11.7 inches,a width of 8.2,and a height of 5 inches. Which could be the approximate volume of the box
Answers
Answer:
Volume equals length x width x height
Step-by-step explanation:
Randy wanted to survey to determine the most preferred pet of the residents in his city.Which method of samplingBEST represents the most unbiased opinion?
Answers
Answer:
Survey 100 residents who have pets completely randomly
Step-by-step explanation:
The best sampling method would be to Survey 100 residents who have pets completely randomly. This would provide first-hand information from actual pet owners which would make the results valid. Also, by choosing the individuals to survey completely randomly it allows for the data to be unbiased and representative of the entire pet owner population in the city. This makes the data gathered completely unbiased and valid.
QUESTION 5
Find the slope of the line through each pair of points.
Type your answer as a fraction.
(-2, 6), (10, -5)
Answers
Answer:
m= -11/12
Step-by-step explanation:
Answer:
-11 / 12
Step-by-step explanation:
Slope = Rise / Run
Slope = y2 - y1 / x2 - x1
Slope = -5 - 6 / 10 - -2
Slope = -11 / 12
Does anyone know??????
Answers
Answer:
67 degrees
Step-by-step explanation:
Angle 2 and angle 7 are vertical angles since l is the transversal.
so that means <2=<7
4x+39=12x-17
Simplify: isolate the variable:
56=8x
divide by 8:
7=x
now plug it in to m<2
4(7)+39=m<2
28+39
67=m<2
i hope this helps!
50 to 60 as a fraction in simplest form
Answers
Answer:
5/6
Step-by-step explanation:
50/60 in simplest form is 5/6
You would divide both sides by 10
The simplified expression of the expression 50 to 60 is 5/6
How to simplify the expressionFrom the question, we have the following parameters that can be used in our computation:
50 to 60
Express as equation
50 to 60 = 50/60
Divide 50 by 60
So, we have the following representation
50 to 60 = 5/6
Using the above as a guide, we have the following:
The expression cannot be further simplified
Hence, the simplified expression is 5/6
Read more about expressions at
brainly.com/question/30492964
#SPJ6
2. If 1/2 of a gallon of paint covers 1/8 of a wall, how much paint is needed to cover the entire wall?
A) 8 2/3 gallons
B) 8 1/3 gallons
C) 3 gallons
D) 2 gallons
Please help !
Answers
C.) 3 gallons
Answer: 4 gallons.
Step-by-step explanation:
With this equation, we can use the ratio 1/2 : 1/8. For every 1/2 gallon of paint, 1/8 of a wall is painted.
If 1/2 gallons covers 1/8 of a wall, then we need 8 of the 1/2 gallons to cover the whole wall. We canrepresent this by multiplying 8 and 1/2.
8 x 1/2 = 4.
Because of this, 4 gallons of paint are needed to cover he entire wall.
(Quick note: I don't know why, but the answer choices seem kind of weird. But the answer is 4 :])
Adriana y Luisa fueron a la feria y decidieron subirse a la rueda de la fortuna. Si el diámetro de la rueda es de 8 metros, ¿Qué recorrido hicieron dando una vuelta completa? Considera Pi= 3.14
Answers
Answer:
Translation?
Step-by-step explanation:
what is x? -2.5x- 2=18
Answers
Answer:
x = -8
Step-by-step explanation:
-2.5x - 2 = 18.
Add 2 to both sides.
-2.5x = 20.
Divide both sides by -2.5.
x = -8
What is the perimeter of the composite figure?
85 cm
107.5 cm
119.5 cm
97 cm
Answers
Answer:
102.90
Step-by-step explanation:
i just did it
Answer:
107.5 cm is the correct answer
Step-by-step explanation:
Which sets of side lengths could from a triangle?
choose all that apply.
Answers
Answer:
E
Step-by-step explanation:
Answer:
d and e
Step-by-step explanation:
for them to be possible side lengths of a triangle the two shorter sides added together have to be greater than the longest side and an answer D and e 6 + 4 is greater than 9 and 5 + 5 is greater than 9 to so those are possible side lengths
A train traveled 1/4 of the distance between two cities in 2/3 of an hour. at this rate, what fraction of the distance can the train travel in one hour
Answers
====================================================
Explanation:
A = fraction of the distance traveled in 2/3 of an hourB = time value that pairs up with AC = fraction of the distance traveled in 1 hourD = time value that pairs with CIn this case,
A = 1/4B = 2/3C = unknownD = 1We can set up the proportion
A/B = C/D
Which cross multiplies to
A*D = B*C
Let's plug in the known values and solve for C
A*D = B*C
(1/4)*(1) = (2/3)*C
1/4 = (2/3)*C
(2/3)*C = 1/4
3*(2/3)*C = 3*(1/4) ..... multiply both sides by 3
2C = 3/4
(1/2)*2C = (1/2)*(3/4) .... multiply both sides by 1/2
C = (1*3)/(2*4)
C = 3/8
The train travels 3/8 of the distance in 1 hour.
Help pls due today ty
Answers
Step-by-step explanation:
Function A
b= 2.5
5= 1.5m+ 2.5
1.5m= 2.5
m= 1.667
m= 5/3
y= 1.667 x+2.5
.........
Blank 1 : 1.667 or (5/3)
Blank 2: -4.5
rate of change can be positive or negative
Blank 3: Function B
Increase £120 by 35%
Answers
Answer:
£162
Step-by-step explanation:
Let's first find 35% of £120.
35% here is our multiplier, so we can turn it into a decimal (0.35) in order to use it in our sum.
£120 × 35% = £42
Now add £42 to £120.
£120 + £42 = £162
Super simple!
explanation:
50% of 120= 60
5% = 6
30% = 36
35%= 36+6= 42
120+42=162
If the wages of 13 workers for 4 days are $9828, find the wages of 1 1 workers for 5 days.
Answers
Answer:
10395
Step-by-step explanation:
[tex]9828 \div 4 \div 13 = 189[/tex]
[tex]189 \times 11 \times 5 = 10395[/tex]
Answer:
945
Step-by-step explanation:
9828 divided by 13 = 756
756 divided by 4= 189
189 x 5= 945
945 x 11= 10,395
Your welcome
An airplane 30,000 feet above the ground begins descending at a rate of 2,000 feet per minute. Write an equation to model the situation. Find the altitude of the plane after 5 minutes
Answers
After 5 minutes A ( altitude) = 30,000 - 2000(5) = 20,000 feet
can someone help me find the slopes for all three problems this was due two days ago
:(
Two of the three representations have lines with the same slope. What is that slope?
Answers
Answer:
Step-by-step explanation:
What is the y-intercept of the equation 2x + 3y = 12?
- 2/3
6
12
4
Answers
Answer:
A ) -2/3
Step-by-step explanation:
Rewrite the equation in slope-intercept form.
y = mx + b
2x + 3y = 12
2x - 2x + 3y = 12 - 2x
3y = 12 - 2x
3y/3 = 12/3 - 2x/3
[tex]y = -\frac{2}{3} x + 4[/tex]
Answer:
The answer above is correct!
Step-by-step explanation:
Hope it helps :)
A number cube is rolled and a coin is tossed. The number cube and the coin are fair. What is the probability that the number rolled is greater than 2 and the coin toss is tails?
Answers
Answer:
'5,3$492
Step-by-step explanation:
649`~_fs?.©α€~_a sv zbs svsh
1/4(12)^2=
what is the answer?
Answers
Answer:
36
Step-by-step explanation:
I hope this helps! have a good day / night:)
Answer:
36
Step-by-step explanation:
1/4*12²
= 1/4*12*12
= 36
When Mr. Day's family moved to town, the rented a house fo $215 a moth. The land lord recently increased the rent by $8.50 a month. What is the percent of increase in rent? Round to the nearest Hundredth of a percent.
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Can someone help me?
Answers
Answer:
the transfer of energy ( I think)
Sound wave
Transverse wave
I'm sorry if I got it wrong...