When asked to rewrite the expression (x3 + 2x? – x)-(-x3 + 2x2 + 6), Denise made a mistake. She did not get the correct answer, 2x3 -x-6. Identify where she
made her made her mistake.
Your answer
She started with the original problem: (x3 + 2x2 - x)-(-x3 + 2x2 + 6)
o She rewrote the problem without parentheses: x3+ 2x2 - x + x3 – 2x2 +6
She rearranged the terms to put the like terms together: x3+ x3 + 2x2 – 2x2-x+6
She combined like terms to get a simplified answer: 2x3 - x + 6
Answer:
She rewrote the problem without parentheses: x3+ 2x2 - x + x3 – 2x2 +6
Step-by-step explanation:
It looks like she didn't fully distribute the -
(x3 + 2x2 - x)-(-x3 + 2x2 + 6) :Original
x3+ 2x2 - x + x3 – 2x2 +6 :Changed
~
(x3 + 2x2 - x)-(-x3 + 2x2 + 6)
x3 + 2x2 - x + x3 - 2x2 - 6
x3 + x3 + 2x2 - 2x2 -x - 6
2x3-x-6
I hope this helps ^-^
You have $25 in your bank account. You start saving $9 each week. Your friend has
$10 in his account and is saving $12 each week. Which system of equations could be
used to model the total amount in the bank account, t as a function of weeks, w.
A)t=9w+25. T=12w+10
B)t+w=25. 10t+9w=12
C)t=9w+12w. T=10w+12
D)t=9w+12w. T+w=25
Answer:
A)t=9w+25. T=12w+10
Step-by-step explanation:
Equation for you:
t = 25 + 9w
Equation for friend:
t = 10 + 12w
Solve: x - 2 = x-8
{11}
{6, 11}
{}
Answer:
11
Step-by-step explanation:
Equation is
[tex] \sqrt{x - 2)} = x - 8[/tex]
solve by
Please help me NO LINKS
✌︎('ω'✌︎ )
Answer:
Use the Substitution method
The answer to the problem is x = 10, y = -1
Ashley's fish tank has 17 liters of water in it. She plans to add 5 liters per minute until the tank has at least 62 liters. What are the possible Ashley could add water? Use t for the number of minutes. Write your answer as an inequality solved for t.
Answer:
57 liters
Step-by-step explanation:
Answer
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MrRoyal
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MISSING DETAILS
Yoko's fish tank has 17 liters of water in it. She plans to add 5 liters per minute until the tank has at least 57 liters. What are the possible numbers of minutes Yoko could add water?
Answer:
Minutes = 8 minutes
Step-by-step explanation:
Topic: Inequality
Given:
Available Size of water = 17 liters
Increment = 5 liters/minute
Size of water needed = At least 57 liters
Putting the above together, as have
17 + 5m > 57
where m represents total minutes and > represent at least
Solving the Inequality
5m > 57 - 17
5m > 40 ------ Divide through by 5
5m/5 > 40/5
m > 8
So, Yoko will need to add water for at least 8 minutes before she fills her tank to 57 liters.
2
A swimming pool is in the shape of a rectangular prism with a horizontal cross-section 10 feet by 20 feet. The pool is 5 feet deep and filled to
capacity. Water has a density of approximately 60 pounds per cubic foot, or 8 pounds per gallon.
What is the approximate weight of water in the pool?
Answer:
The weight of the water in the pool is approximately 60,000 lb·f
Step-by-step explanation:
The details of the swimming pool are;
The dimensions of the rectangular cross-section of the swimming pool = 10 feet × 20 feet
The depth of the pool = 5 feet
The density of the water in the pool = 60 pounds per cubic foot
From the question, we have;
The weight of the water in Pound force = W = The volume of water in the pool given in ft.³ × The density of water in the pool given in lb/ft.³ × Acceleration due to gravity, g
The volume of water in the pool = Cross-sectional area × Depth
∴ The volume of water in the pool = 10 ft. × 20 ft. × 5 ft. = 1,000 ft.³
Acceleration due to gravity, g ≈ 32.09 ft./s²
∴ W = 1,000 ft.³ × 60 lb/ft.³ × 32.09 ft./s² = 266,196.089 N
266,196.089 N ≈ 60,000 lb·f
The weight of the water in the pool ≈ 60,000 lb·f
Allie identifies the coordinates of point D as (3, 7). Explain her error and explain how to correctly identify the ordered pair.
Answer:
[tex]D = (7,3)[/tex]
Step-by-step explanation:
Given
[tex]D = (3,7)[/tex]
See attachment for graph
Required
Identify and correct the error
From the attached graph, the coordinate of D is at:
[tex]x = 7[/tex]
[tex]y = 3[/tex]
So:
Allie's mistake is that, she identifies x as y coordinate and y as the x coordinate.
So, the right coordinate is:
[tex]D = (7,3)[/tex]
How is the graph of y = 4x^2 - 9 different from
the graph of y = 4x^2 - 8?
Answer:
the first equation is one unit to the right of te left
Step-by-step explanation:
No links please!
If f(x) =x^4+5 then what is the remainder when f(x) is divided by x+5?
Answer:
630/x+5 (remainder over divisor)
similfy (6^(7))^(3) Thank you!
Answer:
6^21
Step-by-step explanation:
(6^7)^3 = 6^(7*3) = 6^21
Which expression is equivalent to
-32 3/5?
O -8
O -3√32^5
O 1/3√32^5
O 1/8
Answer:
-8 is the final answer
Step-by-step explanation:
-(2⁵)^3/5
-2³
-8
Dina added five-sixths of a bag of soil to her garden. Her neighbor Natasha added eleven-eighths bags of soil to her
garden. How much more soil did Natasha add than Dina?
Answer:
Natasha added 13/24ths more than Dina.
Step-by-step explanation:
By getting common denominators you have 66/48-40/48 then you get 26/48 and you just simplify this by 2 to get 13/24ths.
Love you, hope this helps.
HELP ILL GIVE U THE BRAINLIEST
Answer:
(0, 3 )
Step-by-step explanation:
To find the y- intercept , substitute x = 0 into f(x), that is
f(0) = 3 × [tex]4^{0}[/tex] [ note [tex]4^{0}[/tex] = 1 ]
= 3 × 1
= 3
y- intercept = (0, 3 )
PLS HELP. INSANELY URGENT. QUESTION IN PICTURE
Answer:
Difference of 15,180,495 feet³
Step-by-step explanation:
Red pyramid volume: 59300000 feet³
Pyramid of Khafre volume: 74400000 feet³
Subtract to get difference
74400000-59300000= 15100000
Nearest in answer choice is 15,180,495 so therefore it is the third choice.
Kayden was offered a job that paid a salary of $39, 500 in its first year. The salary
was set to increase by 2% per year every year. If Kayden worked at the job for 9 years,
what was the total amount of money earned over the 9 years, to the nearest whole
number?
Answer:
FV= $385,307.82
Step-by-step explanation:
Giving the following formula:
Annual salary (A)= $39,500
Growth rate (g)= 2% annual
Number of years (n)= 9 years
To calculate the total amount earned over 9 years, we need to use the following formula:
FV= {A*[(1+g)^n-1]}/g
A= annual deposit
FV= {39,500*[(1.02^9) - 1]} / 0.02
FV= $385,307.82
Logan works at a florist. He earns $300 per week plus $3 for each floral arrangement he delivers. The expression 300 + 3f gives the amount in dollars that Logan earns for delivering f floral arrangements.
How much will Logan earn if he delivers 40 floral arrangements in one week?
Answer:
420
Step-by-step explanation:
3 × 40 = 120
120 + 300 = 420
He will earn 420 in one week
Someone plz help me giving brainliest T^T plz select (2)
Answer:
F.
Step-by-step explanation:
there are 36 tiles overall from where 4 are purple so
[tex]\frac{4}{36} =\frac{1}{9} =\frac{1}{3} *\frac{1}{3}[/tex]
priya says that 1/3 x 1/3 x 1/3 x 1/3 = 4/3. do you agree with priya? explain or show your reasoning
What is the distance between (8, -3) and (4, -7)?
Choose 1 answer
Answer:
Option C √32 is correct
Step-by-step explanation:
Here,
x₁ = 8
x₂ = 4
y₁ = (-3)
y₂ = (-7)
Now,
By Using Distance Formula
D = √(x₂ - x₁)² + (y₂ - y₁)²
= √(4 - 8)² + [(-7) - (-3)]²
= √(-4)² + [(-7) + 3]²
= √16 + (-4)²
= √16 + 16
D = √32
Thus, The distance between (8, -3) and (4, -7) is √32
-TheUnknownScientist
Answer:
under root 32 is the right answer
4.What is the equation in point-slope form of the line passing through (3, 6) and (−2, 1)? (5 points)
a
y + 6 = 1(x + 3)
b
y + 1 = −1(x + 2)
c
y − 6 = −1(x + 3)
d
y − 6 = 1(x − 3)
Answer:
d
Step-by-step explanation:
im doing fast calculation
The strength of a rectangular beam varies jointly as its width and the square of its depth. If the strength of a beam 2 inches wide by 10 inches deep is 1000 pounds per square inch, what is the strength of a beam 4 inches wide and 8 inches deep?
Answer:
yes
Step-by-step explanation:
i know this
Emma eats 5 bags of chips a week. How many bags of chips does she eat (on average) a day? A month? A year?
Answer:
5/7 ; 21 ; 260
Step-by-step explanation:
Given that:
Number of bag of chip eaten in a week = 5
Therefore, on average
Number of bags eaten per day will be :
Number of days per week = 7
Number of bags eaten per day= 5 /7 = 0.714 bags
Number of bags eaten per month :
Number of days in a month = 30
Number eaten or month = 5/7 * 30 = 21.42 bags = about 21 bags
Number of bags eaten per year :
Number of days in a year = 365 days
= 5/7 * 365
= 260.71
= about 260 bags per year.
Plzz help will give Brainiest. Need it now plzz
Step-by-step explanation:
The solution in the photo above, I know it is not very clear sorry for that :)
I hope that is useful for you :)
Find the measure of angle STP.
Pleasee help!!
Answer:
105
Step-by-step explanation:
15x=7x+6+7x+1
15x=14x+7
x=7
15(7)=105
CAN SOMEONE PLS HELP WITH THESE WORD PROBLEMS PLSSS IVE BEEN STUCK HELP HELP HELP
Answer:
3. 76 Balls and 27 Bats
4. you try this
5. you try this
Step-by-step explanation:
Each problem follows the same approach to solve.
Setup 2 equations, one showing the total number and the other showing the total costs.
I'll work out problem 3 and you should be able to do the other two
L=the number of balls
T=the number of bats
equation 1:
L+T=100
equation 2:
L(4.50) + T(20.00) = 822
solve for T in equation 1:
T= 100-L
now substitute T in equation 2:
L(4.5) + 20(100-L) = 822.0
solve for L:
L= -1178/-15.5=76
T=100-76=24
I'll let you know if problems 4 and 5 are correct
Position 3 Value of Term 8 20 Com
15 tractors each working 8 hours a day take to take eight days to Plough a piece of land how many days will it take 24 tractors each working 10 hours a day to plough the same piece of land
It will take 24 tractors, each working 10 hours a day, a total of 4 days to plough the same piece of land.
To determine how many days it will take 24 tractors, each working 10 hours a day, to plough the same piece of land, we can use the concept of man-hours.
Given that 15 tractors, each working 8 hours a day, took 8 days to complete the task, we can calculate the total man-hours required to plough the land.
Total man-hours = Number of tractors * Hours per tractor * Number of days
Total man-hours = 15 tractors * 8 hours/tractor * 8 days
Total man-hours = 960
Now, let's calculate the number of days required for 24 tractors, each working 10 hours a day, to complete the task.
Number of days = Total man-hours / (Number of tractors * Hours per tractor)
Number of days = 960 / (24 tractors * 10 hours/tractor)
Number of days = 960 / (240)
Number of days = 4
As a result, ploughing the same plot of land will require 24 tractors to labour for a total of 4 days at 10 hours per day each.
for such more question on hours
https://brainly.com/question/23377525
#SPJ8
Find the value of x please and fast!!
Answer:
B) 5
Step-by-step explanation:
if comlementary angles are adjacent they form a :
i will give 34 points
fast fast
Answer:
they would make a staright line or straight angle, which would be 180 degrees.
Brainliest?
Step-by-step explanation:
the last parttttttttt
Answer:
Step-by-step explanation:
35x2^10
Answer:
35,840
Step-by-step explanation:
(7 · 2^5) · (5 · 2^5) = (7 · 32) · (5 · 32) = 224 · 160 = 35,840