Answer:
(3x-1)(2x+1)
Step-by-step explanation:
1-6x^2-x=0
-6x^2-x+1=0
6x^2+x-1=0
6x^2+(3-2)x-1=0
6x^2+3x-2x-1=0
3x(2x+1)-1(2x+1)=0
(3x-1)(2x+1)=0
So the factor is (3x-1)(2x+1)
A model giraffe has a scale of 1 in : 3 ft. If the real giraffe is 12 ft tall, then how tall is the model giraffe?
Answer:
4
Step-by-step explanation: because 4: 12
Let h = height of giraffe
1/3 = h/12
3h = 12
h = 12/3
h = 4 feet
need help on this too
Answer:
The reflexive property of equality states that any number is equal to itself. This property has no proof, as it is the fundamental building-block of all other proofs.
Step-by-step explanation:
Anya walked 7/10 km to the bank and then walked 3/4 km to the flower shop. What is the total distance Anya walked? Show your work. Write your answer as a mixed number.
Answer:
1 and 9/20
Step-by-step explanation:
add your fractions together 7/10 + 3/4
make them have the same denom 14/20 + 15/20
so its 29/20
to get the mixed fraction, divide 29/20 to get 1.45. The 1 is your whole number. Subtract 20 from 29 to get 9, which is what is remaining, and will go over 20.
the answer is 1 and 9/20
work:
7/10km = 14/20km
3/4km = 15/20km
15/20+14/20=29/20km
29/20 as a mixed number is 1 and 9/20.
3 − 3k + 7k = 5b[tex]3 − 3k + 7k = 5b[/tex]
Answer:
k=-14
Step-by-step explanation:
Rickey has 7 over 8 cup of cereal in a bowl. He then gave two 1 over 4 cups of cereal from his bowl to his little sister. Which of the following best explains the amount of cereal left in Rickey's bowl?
Answer:
5/8 cup left
Step-by-step explanation:
7/8 - 1/4
1/4=2/8
7/8-2/8
5/8
Erica’s bank account increased from $1,200.00 to $1,500.00. By what percent did the amount of money in her bank account increase?
25% amount of money increased in her bank account.
Here,
Erica’s bank account increased from $1,200.00 to $1,500.00.
We have to find the percent of amount of money in her bank account increase.
What is Percent?
Percentage is a fraction or a ratio in which the value of whole is always 100.
Now,
Erica’s bank account increased from $1,200.00 to $1,500.00.
Increased money = $1,500 - $1,200 = $300
Percentage of increased money = [tex]\frac{300}{1200} * 100 = 25[/tex]
Hence, 25% amount of money increased in her bank account.
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Jordan solved the equation −7x + 25 = 48; his work is shown below. Identify the error and where it was made.
−7x + 25 = 48
Step 1: −7x + 25 − 25 = 48 − 25
Step 2: −7x = 23
Step 3: -7x/7= 23/7
Step 4: x = 23/7
Step 1: He should have added 25 to each side.
Step 1: He should have divided both sides by −7.
Step 3: He should have divided both sides by −7.
Step 3: He should have multiplied both sides by −7.
Answer:
step 3: he should have divided both sides by -7
is the following true or false? d3/dx3(xsin(x))=-xcos(x)-3sin(x)
Answer:
Step-by-step explanation:
That is a true statement.
The first derivative is
[tex]f'(x)=xcos(x)+sin(x)[/tex]
The second derivative is
[tex]f"(x)=-xsin(x)+2cos(x)[/tex]
The third derivative is
[tex]f'''(x)=-xcos(x)-3sin(x)[/tex]
If you don't know how to find a derivative at this point, you'll be in a lot of trouble when it comes to integration. I recommend learning these.
How do I solve this and check all the solutions?
Answer:
sir answer is x=6
Step-by-step explanation:
I hope this 9s ok
[tex] \LARGE{ \underline{ \tt{Required \: answer:}}}[/tex]
Given Eq:
√x + 3 = x - 3Solving this:
Squaring both sides,
➝ x + 3 = (x - 3)²
➝ x + 3 = x² - 6x + 9
Now shifting RHS to LHS,
➝ x + 3 - x² + 6x - 9 = 0
➝ -x² + 7x - 6 = 0
➝ x² - 7x + 6 = 0
Now finding the values of x by middle term factorisation,
➝ x² - 6x - x + 6 = 0
➝ x(x - 6) - 1(x - 6) = 0
➝ (x - 1)(x - 6) = 0
➝ x = 1 or 6.
But here, you can see, x = 1 is not a solution to the original equation because when we say about square roots, value can't be negative.
Hence,
As a result, the only valid solution to the original equation is x = 6.⛱️ [tex] \large{ \blue{ \bf{FadedElla}}}[/tex]
Witch is equavalent to 2/3 all that are true
3/4 and 8/12
Step-by-step explanation:
2/3 by 4 you get 3/4 then 3/4 times 4 equals 8/12
Marisa has $26 in her purse. She pays $5 for lunch. Which expression represents this situation?
Answer: 26-5
Step-by-step explanation:
literally you take 5 aways from 26
This system of equations is shown on the graph:
2y − 4x = 6
y = 2x + 3
Which statement about the system is true?
A. The system has no solution.
B. The system has a unique solution at (0,3).
C. The system has a unique solution at (1,5).
D. The system has infinitely many solutions.
Answer:
Option (D)
Step-by-step explanation:
System of equations has been given as,
2y - 4x = 6
y - 2x = 3 [Dividing both sides of the equation by 2]
y = 2x + 3 ------(1) [Slope-intercept for of the equation]
y = 2x + 3 ------(2)
Since, both the equations are same,
System of equations will have infinitely many solutions.
Therefore, Option (D) will be the correct option.
Answer:
d
Step-by-step explanation:
Determine the annual rate of change.
Answer:
13
Step-by-step explanation:
Subtract 150 - 72 = 78
Divide the answer by 6 : 78/6
(6 being the years in between)
You get 13!
Your friend thinks that the equation k-3.5 = 21 is a true statement. Is your friend correct? Explain.
Answer:
he is not correct because k could be equal to any whole number
there fore no matter what number you subtract 3.5 from it couldnt be a whole number (that includes 21)
Solve for y
6 = 4x + 9y
Answer:
y=.44-.66
Step-by-step explanation:
hope this helps not 100 percent sure let me know in the comments.
There are 56 workers during each shift. The workers are split into teams of 14 each. How many work during a shift?
Answer:
4 teams
Step-by-step explanation:
To evenly distribute 14 into 56, you divide. 56/14 is 4.
Therefore the correct answer is 4 teams.
Hope I helped!!!
WILL MARK BRAINLEST!!!!! THANK YOU! PLEASE SHOW ALL WORK NEEDED!
THE EQUATION IS a^5 b^5 + 5a^3 b^6 - 14ab^7 / ab^5. NOTE: ITS a^5 b^5 + 5a^3 b^6 - 14ab^7 DIVIDED BY ab^5
SIMPLIFY
Answer:
[tex] a^4 + 5a^2 b - 14b^2[/tex]
Step-by-step explanation:
[tex](a^5 b^5 + 5a^3 b^6 - 14ab^7) \div ab^5 \\ \\ = \frac{(a^5 b^5 + 5a^3 b^6 - 14ab^7) }{ab^5}
\\ \\ = \frac{a {b}^{5} (a^4 + 5a^2 b - 14b^2) }{ab^5} \\ \\ = a^4 + 5a^2 b - 14b^2[/tex]
The equation y=1.35x+10 models the cost of a cab ride, where y is the total cost of the ride in dollars and x is the number of miles driven. Which statement describes this model?
A. Customers pay $1.35 per-mile for the first x miles, and then $10 per mile afterwards.
B. Customers pay 10$ per-mile, and then $1.35 per mile afterwards
C. Customers pay $1.35 initially, and then another $10 for every mile traveled.
D. Customers pay $10 initially, and then another $1.35 for every mile travled
Answer:
C.
Step-by-step explanation:
X is the number miles driven so C. is the BEST answer choice.
Answer:
Its C
Step-by-step explanation:
express 4,102/7 in decimal form
Answer:
586
Step-by-step explanation:
It would not be in decimal form because the number don't have a decimal so it would be a whole number
Answer: The answer is 586, so there is no decimal form
In a movie theater, there are children and adults in the ratio 4:7. If there are 21 adults, how many people total are there in the theater?
Answer:
33
Step-by-step explanation:
7x3=21
4x3=12
21+12=33
Jada plans to serve milk and healthy cookies for a book club meeting. She is preparing 12 ounces of milk and 4 cookies per person. Including herself, there are 15 people in the club. A package of cookies contains 24 cookies and costs $4.50. A 1-gallon jug of milk contains 128 ounces and costs $3. Let represent number of people in the club, represent the ounces of milk, represent the number of cookies and represent Jada's budget in dollars. Select all of the equations that could represent the quantities and constraints in this situation.
Jada plans to serve milk and healthy cookies for a book club meeting. She is preparing 12 ounces of milk and 4 cookies per person. Including herself, there are 15 people in the club. A package of cookies contains 24 cookies and costs $4.50. A 1-gallon jug of milk contains 128 ounces and costs $3. Let represent number of people in the club, represent the ounces of milk, represent the number of cookies and represent Jada's budget in dollars. Select all of the equations that could represent the quantities and constraints in this situation.
â m= 12(15)
n represents the number of people
in the club
b. 3m + 4.5c = 6
c. 4n =
m represents the ounces of milk
& 44.50) = C
c represents the number of
cookies
e b=2(3) + 3(4.50)
b represents Jada's budget in
dollars
The equations that could represent the quantities and constraints in this situation are:
a) m = 12(15)
c)4n = c
e) b = 2(3) + 3(4.50)
Step-by-step explanation:
Jada plans to serve milk and healthy cookies for a book club meeting
She is preparing 12 ounces of milk and 4 cookies per person
There are 15 people in the club
A package of cookies contains 24 cookies and costs $4.50
A 1-gallon jug of milk contains 128 ounces and costs $3
Let us represents number of people in the club by n
The the ounces of milk = m
The number of cookies = c
Jada's budget in dollars = d
y = 12(15)
She is preparing 4 cookies per person
4n = c
Since A package of cookies contains 24 cookies
She needs = 15 × 4 = 60 cookies
60 ÷ 24 = 2.5
Hence, approximately, she has to buy 3 packages of cookies
She needs = 15 × 12 = 180 ounces of milk
A 1-gallon jug of milk contains 128 ounces
180 ÷ 128 = 1.406
She needs to buy 2 A 1-gallon jug of milk
Note that: from the question
The cost of each jug of milk is $3
The cost of each package of cookies is $4.50
b represents Jada's budget in dollars
b = 2(3) + 3(4.50)
The equations that could represent the quantities and constraints in this situation are:
Options a, c and e are correct
Use the table to find the ratio. Enter the ratio as a fraction in simplest form.
Color of socks white black blue brown
Number of socks 5 8 4 6
The ratio of blue socks to nonblue socks is-
Answer:
4/19
Step-by-step explanation:
Isaac is purchasing two pairs of shoes—one pair for $37.00 and the second pair for $42.00. The state sales tax applied to Isaac’s bill is 7%. How much is Isaac’s total bill? Show your work.
Answer:
a) 37 + 42 =79
=7/100 x 79
=553/100
=5.53
Isaac's total bill = 79 + 5.53 = $84.53
b) 25/100 x 79
= 19.75
= 79 - 19.75
= $59.25 (before tax)
7/100 x 59.25
= 414.75/100
= 4.15
= 59.25 + 4.15
= $63.4 (after adding tax)
Step-by-step explanation:First we have to take out the percentage of discount and minus it from the total cost . To find the discounted price with tax, we have to take out the percentage of the tax from the discounted amount and add it to the discounted amount to get the total cost.
Answer:
Isaac paid $84.53
Step-by-step explanation:
37+42=79.00
79.00* .07=5.53
5.53+79.00=84.53
Decide whether each of the following is greater than 1 or less than 1 and explain your answer.
1.) 1/2 ÷ 1/4 =
2.) 1 ÷ 3/4 =
3.) 2/3 ÷ 7/8 =
4.) 2 7/8 ÷ 2 3/5 =
Answer:
4.) 2 7/8 ÷ 2 3/5 =
1. Greater than 1
2. Greater than 1
3. Less than 1
4. Greater than 1
Step-by-step explanation:
I took the quiz
I suck at math please do this for me I’ll give you anything
Answer:
Step-by-step explanation:
20:
The second term of a sequence is 13. The term-to-term rule is ' Multiply by 2 then subtract 3'. What is the first term of the sequence?
23
-23
-8
8
Answer: multiply
Step-by-step explanation:
jus 45 multiply by 67
An algebra class normally has y students, but today it is just 2/3 full. Express the number of students in class today terms of y.
Answer:
2/3y
Step-by-step explanation:
If the class usually has y students and has 2/3 today, it can be represented by 2/3y.
Since multiplying a number or variable by 2/3 makes it 2/3 of the amount, 2/3y will represent the people in the class.
So, in terms of y, 2/3y represents the number of students in class today.
Computer salespeople at a local store earn a $100 commission per computer for the first 5 computers they sell each month. For every additional computer they sell during that month, the commission per computer is 1.5 times the rate for the first five. Which of the following is the total commission earned by a salesperson who sells 8 computers in a month?
A. $190
B. $800
C. $950
D. $1,050
E. $1,200
Answer:
C
Step-by-step explanation:
500+450=950
The store bought a table for $200, and sold it for $350. What percentage was the markup? %
Answer: 175% or 75% more in price
Step-by-step explanation:
There was a 75% of markup in the price.
What is percentage?A percentage is a number that tells us how much out of 100 and can also be written as a decimal or a fraction.
Given that, The store bought a table for $200, and sold it for $350, we need to find the percentage of markup in the price,
percentage of markup in the price =
(final price - original price)/(original price)x100
final price = $350, original price = $200
Markup in price = $350-$200 = $150
percentage of markup in the price = 150/200x100 = 75%
Hence, There was a 75% of markup in the price.
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What is m<1
A. 130°
B. 70°
C. 60°
D. 120°
Answer:
120 degrees
Step-by-step explanation:
To find m<1 we must first find the other angles.
First, find m<CDB. To do this use the complementary angle 130. So m<CDB=180-130, which means m<CDB=50.
Then find m<2, to do this remember that all triangles equal 180. So to find m<2 solve the equation m<2=180-(70+50), which equals 60 degrees.
Finally find m<1 the same way you found m<CDB, using the complementary angle 2. m<2=180-60, therefore m<1=120.
Answer:
120
Step-by-step explanation: