Answers
Answer:
x=7
Step-by-step explanation:
Answer:
x = 7
Step-by-step explanation:
Equating the expression for area to the given area
2x² - 7x - 4 = 45 ( subtract 45 from both sides )
2x² - 7x - 49 = 0 ← in standard form
To factor consider the factors of the product of the coefficient of the x² term and the constant term which sum to give the coefficient of the x- term
product = 2 × - 49 = - 98 and sum = - 7
The factors are - 14 and + 7
Use these factors to split the middle term
2x² - 14x + 7x - 49 = 0 ( factor the first/second and third/fourth terms )
2x(x - 7) + 7(x - 7) = 0 ← factor out (x - 7)
(x - 7)(2x + 7) = 0
equate each factor to zero and solve for x
x - 7 = 0 ⇒ x = 7
2x + 7 = 0 ⇒ 2x = - 7 ⇒ x = -
Thus the positive value for x is x = 7
(also, this answer isn't mine, and love the fire by bts armyyy)
Related Questions
Find the measurements of angles a, b and c. PLZ HELP
Answers
The Jackson's dinner cost $125. They left $21.25 as a tip. What was the percentage of the tip? Please explain and help me! THANK YOU!!!
Answers
Answer:
17%
Step-by-step explanation:
to find the percentage of something, you have to fill out the following formula:
x/100 = 21.25/125. Basically that is saying that some percent out of 100 is equal to 21.25 out of 125. To solve that, you have to cross multiply:
125x = 2125
then you have to divide, to single out x:
the answer is 17
so it is 17%
Divide the tip by the amount dinner was and you get your percentage for the tip
What’s the sum of a number x and three is equal to eleven
Answers
Answer:
x = 8
Step-by-step explanation:
your equation can be written as: x + 3 = 11
subtract 3 from both sides to isolate x: x = 8
your answer is 8
►Solve the problems.
I
The tile floor in a restaurant is being replaced. The dimensions of the floor are
shown. What is the total area of the new tile floor in the restaurant?
12 ft
17 ft
15 ft
20 ft
A 64 ft2
B 180 ft2
C 240 ft2
D 300 ft
Answers
Solve five ninths plus four sixths
sixty six fifty fourths
ten fifteenths
nine tenths
thirty ninths
Answers
Answer:
Your answer will be Sixty Six Fifty Fourths
Step-by-step explanation:
Make it the same denominator so you can add them (18.)
Multiply 5/9 by 2 and multiply 4/6 by 3.
10/18 + 12/18 = 22/18.
Since there is not 22/18 listed, you can use this fraction as a proportion. The only proportion that can be evident is answer A, as when you multiply 22/18 by 3, you get 66/54.
Hope this helps! ;)
Each of the numbers 0, 2, 4, 6, 8, 10, 12, and 14 is written on a separate sheet of paper and placed into a box. One piece of paper is selected at random. Find the probability that the piece of paper selected contains the number 8 or a number less than 12.
Answers
Answer:
For the second, all numbers less than 12, that would be 87.5%
Step-by-step explanation:
There are eight numbers. 100 divided by 8 is 12.5. 12.5 multiplied by 7 is 87.5.
Solve for n:
12n + 3 – 3n = 30
n = ?
Answers
Answer:
n=3
Step-by-step explanation:
12n-3n=30-3
9n=27
n=27/9
n=3
- 3/8 divided by 2/3
Answers
Answer: -0.5 maybe
Step-by-step explanation:
It will be -0.0625
Hope this is helpful to you =)
Which statement below best describes what a ratio is.
A . A comparison
B. A comparison of many things
C.A number
D. A comparison of two quantities using diwasion
Answers
Find the Domian and Range.
Answers
Answer:
Domain: [-5,5]
Range: [-5,5]
Step-by-step explanation:
Domain: the set of possible values along the x-axis.
Range: the set of possible values along the y-axis.
Marcus spent 10 hours doing his homework last week. This week he spent 11 hours doing homework. He says that he spent 110% more time doing homework this week. Is he correct? Show your work to justify your decision.
Answers
Answer:
Yes he is correct, If it was 100% then it would stay the same 10 hours. But since it's 110%, it is in fact 11.
Step-by-step explanation:
What is the answer to this smart people answer this show work pls who knows this already
Answers
Answer:
10 units
Step-by-step explanation:
LMNO is a square.
All sides of square are equal
MN = LM
3x + 1 = x + 7
3x - x = 7 - 1
2x = 6
x = 6/2
x = 3
LM = x + 7 = 3 + 7 = 10
LM = 10 units
HELP ASAP!! WILL MARK BRAINLIEST!!!
Varsha wants to stay in Bolandia City for four nights and has a choice of four hotels. She will stay at the same hotel for all four nights. She requires internet access throughout her stay and breakfast each morning.
Which hotel is the cheapest.
Need steps.
Answers
Answer:
First of all i just did this in school! <3 And second of all I WILL HELPP!!
Step-by-step explanation:
its luxuryyyyy!!!!!!!!!
im struggling :(((((((((((
Answers
Answer:
Step-by-step explanation:im sorry im only 11
how many 0.5-pound packages can be made with 7 pounds of sunflower seeds?
Answers
Answer:
14. :D
Step-by-step explanation:
Match each expression to its simplified answer
9x-3y + 5y
Answers
Answer:
9x + 2y
General Formulas and Concepts:
Algebra I
Combining Like TermsStep-by-step explanation:
Step 1: Define
9x - 3y + 5y
Step 2: Simplify
Combine like terms (y): 9x + 2yPlease help! I mark brainlist.
Answers
Answer: A. -3/4x - 3
Find the slope of each line.
Answers
I hope this helps :)
HELP ASAP NEEDS TO BE DONE TODAY.
Which expression is equivalent to 27 + 45?
A. 8(3+6)
B. 8(19+ 37
C. 9(3+5)
D. 9(18 + 36)
Answers
Answer:
A
Step-by-step explanation:
if you did 6+3=9
8x(9)=72
"27+45=72"
Answer:
C
Step-by-step explanation:
27 + 45 = 72
9(3 + 5)
9 x 3 = 27
9 x 5 = 45
27 + 45
brooke plays on her schools softball team. Last season she was at bat 500 times and made a safe hit 28% of the time. How is 28% expressed as a fraction
PLEASE HELP please?
Answers
Answer:
28/100
Step-by-step explanation:
which line is transversal
Answers
Answer:
line l is the transversal
Please help asap!! I will mark you as brainliest :)
Answers
olamami performancematters.com/ola/lapichentCodes Miamidade
Connection ftatus Good
Welcome, ANGELICA RODRIGUEZ
Performance Matters
All changes
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Submi
Question 6 of 25 -
Which letters shown below on the number line also have their opposites labeled?
A
B
c
D
0
A and D
Band C
o
A, B, and
O
B, C, and D
O
Previous
ii
Type here to search
2
** N
PLEASE HELP MEEE!!!!
Answers
Answer:
The correct option is;
B, C, and D
Step-by-step explanation:
The labelled letters on the number line are;
A = 2 units to the left of the point 0 = - 2 units
B = 1 units to the left of the point 0 = - 1 unit
C = Located at the point 0
D = 1 units to the right of the point 0 = +1 unit
Therefore, the letters that have their opposites labelled are;
Given that we have;
The opposite of B = -1 is +1 = D
The opposite of D = +1 is -1 = B
The opposite of C = 0 is 0 = C
The letters which have their opposites labelled are B, C and D
A drawing has a scale of 1:40 on the drawing a bedroom is a rectangle measuring 10 cm x 18 cm a kitchen has an actual area of 300,000 cm² which has the bigger actual area of the kitchen or the bedroom
Answers
Answer:
The kitchen has a bigger actual area than the bedroom
Step-by-step explanation:
Here, we want to know the compartment with the bigger area
Since the bedroom has a drawing measure of 1 to 40; compared to the actual measurement;
The real dimensions will be;
10 * 40 and 18 * 40
= 400 by 720
So, its area which is length * width will be;
400 cm * 720 cm = 288,000 cm^2
we can see that the kitchen with an area of 300,000 cm^2 is bigger than this area of the bedroom
Help!!!
Could u pls answer this questions it will be really helpful
Answers
Answer:
9a) 6 miles
9b) 12:20
Step-by-step explanation:
for first question, use the distance formula: distance = rate · time
d = 2 x 3
d = 6 miles
for second question, she began walking home at 11:05 and it took 1 hour, 15 minutes (15 minutes is 1/4 of 60 minutes)
11:05 + 1 hour = 12:05
12:05 + 15 minutes = 12:20
1 (2x + 3) (3x-5) 2. (3x + 5y)3 3. (3x + 5y - 2z)?
Answers
Answer:
1)
2x(3x-5)+3(3x-5)
6x²-10x+6x-15
6x²-4x-15
The Orlando Solar Bears had a successful season on the ice winning 80% of their games. They won a record of 32 games. How many games are in a season?
Answers
Answer:
Step-by-step explanation:
You'd do 80% times 32. You have to move the 80 to the left 2 times. then multiply.
Can you write 10 2/3 as an improper fraction?
Answers
Answer:
10 2/3 is 32/3
Step-by-step explanation:
10*3=30
30+2=32
32/3
.
Step-by-step explanation:
10 2/3
add 10 + 2/3
continue
y=-3x+6 and y=5x-2 for y
Answers
Answer:
The first one is x=2 and the second one is x=2/5 or 0.4
Step-by-step explanation:
help me please i need to do this fast