Hello!
your answer is: 4
2 cubed is also written as: 2³
2 squared is also written as: 2²
so the re-written equation is: 2³ - 2²
To solve, simplify by doing the exponents.
2³ = 8
2² = 4
8 - 4 = 4
I hope this helps, and have a nice day!
35% of 120 =
12% of 50 =
55% of 40 =
Step-by-step explanation:
[tex]p\%=\dfrac{p}{100}\\\\\\35\%=\dfrac{35}{100}=0.35\\\\35\%\ of\ 120\to0.35\cdot120=42\\\\\\12\%=\dfrac{12}{100}=0.12\\\\12\%\ of\ 50\to0.12\cdot50=6\\\\\\55\%=\dfrac{55}{100}=0.55\\\\55\%\ of\ 40\to0.55\cdot40=22[/tex]
What are the solutions to the nonlinear system of equations below? Check all that apply.
Answer: answer is D and F
Step-by-step explanation:
A spool of ribbon holds 6.75 meters. A craft club buys 21 spools.
a. What is the total cost if the ribbon sells for $2 per meter?
b. If the club uses 76.54 meters to complete a project, how much ribbon will be left?
Answer:
a. 141.75 m
b. 65.21 m
Step-by-step explanation:
One spool = 6.75 m
total ribbon = 21 spools
a) total spool in meter = 6.75×21 = 141.75 m
unit meter cost = 141.75×2 = 283.5 m
b) if the club uses 76.54 m then 141.75- 76.54 m = 65.21 m of ribbon left
2.
Solve for x: 2x+ 5 = 4x + 7
Answer:
x = -2
Step-by-step explanation:
2x + 5 = 4x + 7
2x = 4x + 7 - 5
-2x = 2
x = -2
Answer:
x=-2
Step-by-step explanation:
this is how the answer for it
Find the coordinates of the missing endpoint given E is the midpoint of DF. F(5,8) E(4,3)
Answer:
(3,-2)
Step-by-step explanation:
Midpoints bisect a line into two perfectly congruent segments. So, you can find that f was translated down 5=(8-3) and left 1=(5-4). then repeat this step by subtracting x of point e by 1 and the y of point e by 5 to get (3,-2)
Answer:
(3, -2)
Step-by-step explanation:
( x1 + x2 / 2, y1 + y2 / 2 )
x2 = ( x1 + E / 2 ), y2 = ( y1 + E / 2 )
5 + x / 2 = 4, 2(5 + x / 2) = 4(2) = 5 + x = 8, x = 3
8 + y / 2 = 3, 2(8 + y / 2) = 3(2) = 8 + y = 6, y = -2
Solve for x:
2.9−x=0.29
Answer:
2.61
Step-by-step explanation:
You have to subtract 2.9 to 0.29 because it is a positive number and you have to do the opposite. That will give you -2.61 but you still have to bring down that negative x and to get rid of the negative, you divide both sides by one since there is an understood one beside the x and a number beside another number or variable means multiplication and that will give you, 2.61.
Solving for x in 2.9−x=0.29 is a simple algebraic operation that involves adding x to both sides of the equation to cancel it on the one side and then subtracting 0.29 from both sides to find x = 2.61.
Explanation:To solve for x in the equation 2.9−x=0.29, you'll need to think about it in terms of moving pieces from one side of the equal sign to the other. Therefore, if we add x to both sides of the equation, it cancels out the variable on the left. So, we have 2.9 = x + 0.29. After that, to isolate x on one side, subtract 0.29 from both sides and we end up with x = 2.9 - 0.29. When we calculate it, we get x = 2.61.
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Given the function
[tex]f(x) = 3 |x + 2| - 4[/tex]
When will this function be greater than 0?
Answer:
[tex]x = <-\infty;-\frac{10}{3}>U<-\frac{2}{3} ;+\infty>[/tex]
Step-by-step explanation:
f(x) > 0
if:
[tex]x = <-\infty;-\frac{10}{3}>U<-\frac{2}{3} ;+\infty>[/tex]
How many inches does the ramp rise for each inch of length? Round to the nearest hundredth.
A) .25 inches
B) .33 inches
C) .34 inches
D) .67 inches
E) .72 inches
Answer:
The answer is B)
Step-by-step explanation:
First, we look at what we know. There are two points on the graph that we know, (0, 0) and (15, 5). This can give us the slope of the line.
y2 - y1 / x2 - x1 | Plug in our coordinates
5 - 0 / 15 - 0 | 5 / 15 | 1/3. Our slope is 1/3. This means that for each inch of length, the ramp rises .33 inches.
The answer is b
Have a great day.
bradly Now assign a variable for time.
Answer: Let t represent the time in years.
Step-by-step explanation: that's what the answer is for your question exactly you don't need the explanation just "Let t represent the time in years. "
Georgia is making sock puppets. Each pair of socks costs $2. georgia bought 6 pairs of socks. How much did she spend?
Answer:
$12
Step-by-step explanation:
First you would have to write down the number of socks. That is 6. That means 6 is the first part of our equation. Then, we have to multiply this by the $2. You have to do this because this is how much each pair costs. Then you would do 2 times 6 equals 12.
Answer:
If each pair of sock is 2$
and she bought 6
multiply 2 by 6
explanation
2x6 = 12
because a pair of docks is two so multiply by how much pairs she bought
If you have agreed to shovel 10 driveways in your neighborhood, how long will it take for you and your friend to complete the work?
Answer:
divide 10 by two
Step-by-step explanation:
easy
To determine the time required to shovel 10 driveways, additional details such as the time for one person to shovel one driveway are needed. The method of snow removal, collaboration efficiency, and driveway conditions are key factors affecting the duration.
To determine how long it will take for you and your friend to shovel 10 driveways, we need more information about the time it takes for one driveway to be shoveled by one person. Since this information is not provided, I cannot give a precise answer. However, I can discuss the factors that will affect the time required to complete the work, including the method of snow removal used, the size and condition of the driveways, the amount of snowfall, and the efficiency of you and your friend while working together.
If using hand shovels, snow blowers, or a pickup truck with a snowplow, the time will vary significantly. With hand shovels, expect it to take the longest time, as this method is labor-intensive. Using a snow blower will reduce the time compared to shoveling by hand. And finally, using a pickup truck with a snowplow will likely be the fastest method, assuming the driveways are accessible and suitable for this equipment.
The efficiency of you and your friend working as a team will also impact the duration. If you work simultaneously on separate driveways, you could potentially cut the time in half, compared to working alone. Therefore, collaboration and the chosen snow removal method will ultimately dictate the total time spent.
Use Order of Operations
to solve.
4 to the third power -(24 ÷6) +8
Answer:
55.75
Step-by-step explanation:
First you start by doing what is in the parenthesis. so we divide 6 by 24 which gets us 0.25. Then we follow the rest of PEMDAS. Addition is next so we add 8 to 0.25 to get 8.25. Now we finally get to the fun part. 4 to the third power which is 64, then we subtract 8.25 to get 55.75. Hope that helps.
: The Imbrium Basin is the largest basin on the moon. A reasonable domain
for the height above the lowest point in the basin is given by
{d0 < d < 3805774}. What does this tell you about the basin?
Answer:
Part a) [tex]f(2)=1.57\ sec[/tex]
It takes 1.57 seconds for an object to fall a distance of 2 feet
Part b) see the explanation
Part c) [tex]2,165.43\ sec[/tex]
Step-by-step explanation:
The complete question is
On the moon, the time, in seconds, it takes for an object to fall a distance, d, in feet, is given by the function f(d) = 1.11√d.
Part a: determine f(2) and explain what it represents.
Part b: The imbrium basin is the largest basin on the moon. A reasonable domain for the height above the lowest point in the basin is given by {d|0 ≤ d ≤ 3805774}. What does this tell you about the basin.
Part c: how long would it take a rock to drop from the rim to the bottom of the basin?
Let
f(d) -----> the time in seconds it takes for an object to fall
d -----> distance in feet
we have
[tex]f(d)=1.11\sqrt{d}[/tex]
Part a): Determine f(2) and explain what it represents
we know that
f(2) represent the time in seconds it takes for an object to fall a distance of 2 feet
For d=2 ft
substitute in the function above and solve for f(2)
[tex]f(2)=1.11\sqrt{2}\\f(2)=1.57\ sec[/tex]
therefore
It takes 1.57 seconds for an object to fall a distance of 2 feet
Part b) The imbrium basin is the largest basin on the moon. A reasonable domain for the height above the lowest point in the basin is given by {d|0 ≤ d ≤ 3805774}
What does this tell you about the basin?
The height of the basin is greater than or equal to 0 ft and less than or equal to 3,805,774 ft
so
The maximum height of the basin is 3,805,774 ft
Part c) How long would it take a rock to drop from the rim to the bottom of the basin?
we know that
The distance from the rim to the bottom of the basin is equal to the maximum height of the basin
so
[tex]d=3,805,774\ ft[/tex]
substitute the value of d in the function f(d)
[tex]f(d)=1.11\sqrt{3,805,774}\\f(d)=2,165.43\ sec[/tex]
Simplify. 7+3(2−1)^2
Answer:
10
Step-by-step explanation:
2-1 =1
7+3 = 10
10(1)^2 =
10(1) =
10
Answer:
7+3(2-1)^2=10
Step-by-step explanation:
1.Subtract: 2 - 1 = 1
2.Exponentiation: the result of step #1 ^ 2 = 1 ^ 2 = 1
3.Multiple: 3 * the result of step #2 = 3 * 1 = 3
4.Add: 7 + the result of step #3 = 7 + 3 = 10
What are the prime numbers for 8 an 9
Answer neither 8 nor 9 are prime!!!
5 -b(t+3) = -1 +2n(t-3)
Answer:
b= - 2nt-6n-6/ 3+t; t≠ -3
I hope this is what you were looking for!
Which of the following values is the solution to the equation -35x = -105 ? 3 -3
Answer:
3
Step-by-step explanation:
it will be 3 if you want to find the positive number
Round to the nearest hundred 92,651
Answer:
Step-by-step explanation: ok, so you know how when you round, if the digit before the number your rounding is 1-4, then you round down, and if it is 5-9 you round up. So in this case, you round up, so the answer is
92700
how can you tell if a relation is a function
One way to tell if a relation is a function is by using something called the vertical line test. In other words, if we can draw a vertical that passes through more than one point on a graph, then the relation does not represent a function. Another way to tell if a relation represents a function is by looking at the X coordinates of each ordered pair. If any of the ordered pairs have the same X coordinate, then the relation is not a function.
Is 5.787787778... a rational number
Answer:
Irrational, because it is non-terminating and non-repeating So Its Irrational.
Which expressions are equivalent to 6 +(–x) + 2x + (–7) + 2x?
The expressions equivalent to 6 +(–x) + 2x + (–7) + 2x simplify to 3x – 1, as like terms are combined to reach the final equivalent expression.
Explanation:The expressions equivalent to 6 +(–x) + 2x + (–7) + 2x can be found by combining like terms. To start, we list all the terms out:
Positive six: +6Negative x (or -1x): –xTwo times x (or 2x): +2xNegative seven: –7Another two times x: +2xNow, we can combine like terms:
x-terms: –x + 2x + 2x = 3x
Constant terms: +6 – 7 = –1
So the equivalent expression is:
3x – 1
To check if our answer is reasonable, we make sure that all like terms have been combined and there are no further simplifications possible.
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What is 9/20 but in percent form
Answer: 45%
Step-by-step explanation: Well in order to get a percent, we need the denominator to be 100 and then the value we get as the numerator is the percentage which we want to calculate.
To get a 100 in the denominator of 9/20, we multiply top and bottom by 5 and we get the equivalent fraction 45/100.
Now the numerator will be our percent which is 45.
So 9/20 is equivalent to 45%.
Which of the following r-values represents the strongest correlation?
O A. 0.50
OB. 0.92
O C. 0.74
O D. 0.29
SUBMIT
Hey!
------------------------------------------------
Answer: 0.92
------------------------------------------------
Explanation: The correlation will be between 1 and -1. 1 being positive and -1 being negative. The highest number that is closest to the r value is the strongest correlation.
------------------------------------------------
Hope This Helped! Good Luck!
Answer:
0.71
Step-by-step explanation:
If you have $100.00 to start the summer and you earn $25.00 per day. What equation would represent this?
Hey!
--------------------------------------------------
[tex]\boxed{ \bf 100~+~25x~=~m}[/tex]
--------------------------------------------------
Solution:
m = money at the end of summer.
x = how many days are in summer.
If he starts with 100 dollars at the beginning of summer, then you just want to add it depending on how many days he gets paid $25.
--------------------------------------------------
Hope This Helped! Good Luck!
Identify the property in this equation: (7th Grade Math) 3 + [7 + (–4)] = (3 + 7) + (– 4)
Answer:
Associative Property
Step-by-step explanation:
The brackets moved, so it would be associative
Mary can clean her apartment in 6 hours while her roommate can clean the apartment in 5 hours. If they work together how long would it take them to clean the apartment
Answer:
2 hours and 44 mins
Step-by-step explanation:
Final answer:
Mary and her roommate can clean the apartment together in approximately 2.73 hours. This is calculated by adding their individual cleaning rates and then taking the reciprocal of the sum to find the total time.
Explanation:
The question asks how long it would take for Mary and her roommate to clean the apartment if they worked together. Mary can clean the apartment in 6 hours, which means in one hour, she can clean 1/6 of the apartment. Her roommate can clean the apartment in 5 hours, so in one hour, the roommate can clean 1/5 of the apartment. Working together, their combined cleaning rate per hour is 1/6 + 1/5. To find their combined rate, we get a common denominator, which is 30, so their rates become 5/30 and 6/30, respectively. Summing these, we get a combined rate of 11/30 of the apartment cleaned per hour. To find the amount of time it takes for them to clean the entire apartment together, we divide 1 by their combined rate, so 1 / (11/30) = 30/11 hours which is approximately 2.73 hours.
What is 2.25x+5=13.5x+14
Answer:
x = -1.25
Step-by-step explanation:
2.25x + 5 = 13.5x + 14
subtract five from both sides
2.25x = 13.5x + 9
subtract 13.5x from both sides
-11.25x = 9
swap the negative
11.25x = -9
divide 11.25 from both sides
x = -1.25
Based on the given equation 2.25x+5=13.5x+14; the value of x is 0.8
What is like terms?Like terms refers to terms in an algebraic expression or equation which have the same variable.
2.25x+5=13.5x+14
combine like terms
2.25x - 13.5x = 14 - 5
11.25x = 9
divide both sides by 11.25
x = 9/11.25
x = 0.8
Hence, 0.8 is the value of x in 2.25x+5=13.5x+14
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Pls help me get the answer and help me understand how to solve these type of questions
Answer:
y = (x - 4)² + 2
Step-by-step explanation:
The equation of a parabola in vertex form is
y = a(x - h)² + k
where (h, k) are the coordinates of the vertex and a is a multiplier
here (h, k) = (4, 2), thus
y = a(x - 4)² + 2
To find a substitute a point that lies on the curve into the equation
Using the point (2, 6), then
6 = a(2 - 4)² + 2
6 = 4a + 2 ( subtract 2 from both sides )
4 = 4a ( divide both sides by 4 )
a = 1
Hence
y = (x - 4)² + 2 ← equation in vertex form
I really don’t understand this question -_-
Answer:
Step-by-step explanation: When you have the number 1000 there are three zeros so in scientific notation you just have to mve the decimal to the right three times and you'll have your answer hope this helps!
Evaluate C(7,3)
A.) 4
B.) 35
C.) 70
Answer:
math
way
.com
Step-by-step explanation:
Answer:
35, is your answer my friend