Answer:
3x - 6
Step-by-step explanation:
To evaluate f(2x) and f(x + 2) substitute x = 2x and x = x + 2 into f(x)
f(2x) = 3(2x) - 2 = 6x - 2
f(x + 2) = 3(x + 2) - 2 = 3x + 6 - 2 = 3x + 4
Thus
f(2x) - f(x + 2)
= 6x - 2 - (3x + 4)
= 6x - 2 - 3x - 4
= 3x - 6
Can someone help me with this? I have no clue whats going on-
Answer:
2909
Step-by-step explanation:
Answer:
So the answer for your question is Sarah is correct because square root 2 is irrational:)
Step-by-step explanation:
Rational numbers are numbers that can be expressed as a fraction or part of a whole number. (examples: -7, 2/3, 3.75) Irrational numbers are numbers that cannot be expressed as a fraction or ratio of two integers.
√ means square root. Square root means a number which produces a specified quantity when multiplied by itself. SO for example 7 is a square root of 49...
Example of another irrational and rational number: 74 is rational. Irrational number would be 3.14:)
Hope this helped...yeah I wrote a lot of stuff, I hope you understand it;)
perform the subtraction 23 - (-23)
Answer:
46
Step-by-step explanation:
Given K = (−5,−3) and M = (−1,4), find KM. Also, what would you call this type of problem?] Please answer I feel so dumb. I wasn't paying attention
What is the y-value when x = 0 in the function below? y=x+2
Answer:
y=2
Step-by-step explanation:
y=0+2
y=2
PLEASE HELP!!! Select all the equations that represent the distance formula.
Answer:
A is the answer
Step-by-step explanation:
I’m confused and I just need a little help understanding
Answer:
3,3
Step-by-step explanation:
Answer:
Step-by-step explanation:
The term "about the origin" means that the origin is "the center of rotation".
Our coordinate right now is (3, 2).
90 degrees clockwise means we need to rotate to the left by 90 degrees. So if you rotate your image:
We now get (2, 3).
(I had some trouble reading the numbers, I'm reading them as (1, 2, 3, 4, 5,) for the X and Y axis, I hope I read them right.)
Write -23.775 as a mixed number
Answer:
-23 31/40
Step-by-step explanation:
which number produces an irrational answer when added to 3/4
Answer
pi.
Step-by-step explanation:
If you add pi (3.14) to 3/4, you will get an irrational answer.
EASY MATH GOOD POINTS
Answer:
t = (D/C - 1) (100/r)
Step-by-step explanation:
D = C(1+rt/100)
D/C = 1 + rt/100
D/C - 1 = rt/100
D/C - 1 = t (r/100)
Therfore,
t = (D/C - 1) / r/100Therefore the last option is correct.
PLEASE MARK MY ANSWER AS BRAINLIEST!!!!!Answer: t = (D/C - 1) / r/100
Step-by-step explanation:
What is the minimum perimeter of a rectangle that has an area of 625 square feet?
Answer:
100 feet.
Step-by-step explanation:
The minimum perimeter of a rectangle with fixed area is always a square.
Length of square = √625 = 25.
Perimeter of square = 4 * 25 = 100 feet.
Evaluate the expression:
(1/3)⁴ = ?
Answer:
1/81
Step-by-step explanation:
First, square 1/3 that gets you, 1/9, multiply by 3 again to get 1/27, again to get 1/81
I have a secret number (x). Seven more than quadruple my number equals -5. What is
my number?
Answer:
Your number is 0.5, 2/4, or 1/2
Step-by-step explanation:
You need to set up your equation and then solve for x. We know that quadruple your number (x) plus 7 equals -5. Quadruple your number is the same as multiplying by 4. So it would be 4x + 7 = -5. We add seven to both sides and that would leave us with 4x = 2. Then we divide both sides by 4 to get x on it's own. x = 2/4 or 1/2
2y^2-8=6-2y^2
can someone help
I need help please can someone help me find each area thank you
Answer:
it is easy use the formula of triangle which is 1/2(base × height) and base is the side where the height touches and height means the perpendicular line.
And in some cases there may be the use of pythagoras theorem
Answer:
1/2 (9)3.1 = 13.95
1/2 (6)5.5 = 16.5
1/2 (12)4.4 = 26.4
1/2 (4)6.7 = 13.4
What is the answer ?
Answer:
C. QRT and TRQ
Seven less than eight times a number is equal to 25
Answer:
4
Step-by-step explanation:
let the number=x
8x-7=25
8x=25+7
8x=32
x=32/8=4
What is the equation of a line with a slope of –2 that passes through the point (6, 8)?
Answer:
answer is 2x+y = 20
Step-by-step explanation:
I did the test
The equation of a line with a slope of –2 that passes through the point (6, 8) will be 2x + y = 20.
What is the equation of line?The equation of line is given as
y = mx + c
Where m is the slope and c is the y-intercept.
The slope is -2. Then the equation of line will be
y = –2x + c
The line is passing through (6, 8), then we have
8 = –2(6) + c
8 = –12 + c
c = 8 + 12
c = 20
Then the equation of line will be
y = –2x + 20
2x + y = 20
The equation of a line with a slope of –2 that passes through the point (6, 8) will be 2x + y = 20.
More about the equation of line link is given below.
https://brainly.com/question/21511618
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The wheels on Noah's bike has a circumference of about 5 ft. How many times do the wheels rotate if Noah rides 40 feet?
Answer:
8
Step-by-step explanation:
circumference of about 5 ft means perimeter of 5 ft.
every full circle the wheel rotates it goes 5 ft
So 40 ft divided by 5 ft is 8
8 rotates
Answer:
8
Step-by-step explanation:
|5-2(9)|+9^2/3
algebra 2 question
Solve the following proportion for v. v/12=13/7 Round your answer to the nearest tenth. Plz help
Answer:
22.3
Step-by-step explanation:
divide 13/7 = 1.86
multiply 1.86x12 = 22.3
12 - 3x = -6x
I’m confused on how to solve for X if they are on both sides
Answer:
x =-4
Step-by-step explanation:
[tex]12 - 3x = -6x[/tex]
Step 1 ; Collect like terms . (put the numbers with variables on one side of the equation and ordinary numbers on the other side )
[tex]12 =-6x+3x[/tex]
Note ; When a number is crossing over an equality sign ; the sign will always change
Step 2 ;
Simplify
[tex]-6x +3x =-3x\\\\ 12=-3x[/tex]
Step 3 ; Divide both sides of the equation by -3
[tex]\frac{12}{-3} = \frac{-3x}{-3} \\\\-4 = x[/tex]
Switch sides
[tex]x =-4[/tex]
Help please urgent!!!!!
A box is 2m long, 30 cm high and 40 cm wide. What is the volume of the box in cubic centimeters?
Answer:
240000 cm^3
Step-by-step explanation:
For this problem, we need to know that 1 meter is equivalent to 100 centimeters. With this in mind, we can use the equation:
Volume = Length x Width x Height
Volume = 200cm x 40cm x 30cm
Volume = 240000 cm^3
Cheers.
The table below shows the amount that must be repaid, y, when x dollars are borrowed. Amount Borrowed Amount Repaid $100 $135 $200 $260 $500 $635 $800 $1,010 Which equation represents the relationship? y = StartFraction 5 Over 4 EndFraction x y = StartFraction 4 Over 5 EndFraction x y = StartFraction 5 Over 4 EndFraction x + 10 y = StartFraction 4 Over 5 EndFraction x + 55 Mark this and return
Answer: it’s c.) y= 5/4x +10
Step-by-step explanation:i took the quiz:)
Answer:
its c
Step-by-step explanation:
i just took the quiz
509 to nearest hundreds
Answer:
509 rounded to the nearest hundred is:
500
Step-by-step explanation:
When rounding to the nearest hundred, like we did with 509 above, we use the following rules:
A) We round the number up to the nearest hundred if the last two digits in the number are 50 or above.
B) We round the number down to the nearest hundred if the last two digits in the number are 49 or below.
C) If the last two digits are 00, then we do not have to do any rounding, because it is already to the hundred.
Rounded to Nearest Hundred
Enter another number below to round it to the nearest hundred.
What is 510 rounded to the nearest hundred?
Now you know what 509 rounded to the nearest hundred is. Go here for the next number we rounded.
What is the perimeter of the rectangle
Answer:
probably the first one 4x+6
Answer
4x square + 3
Step-by-step explanation:
Perimeter of a Rectangle = 2(l * b)
= 2*(2x+3 * x)
=2*(2x*x+3)
=2*(2x squared * + 3)
2*2x squared + 3
=4x square + 3
9. If LK MK, LK = 7x - 10, KN = x + 3, MN = 9x - 11, and KJ = 28, find LJ.
Answer:
[tex] LJ = 46 [/tex]
Step-by-step explanation:
Given:
[tex] LK = MK [/tex]
[tex] LK = 7x - 10 [/tex]
[tex] KN = x + 3 [/tex]
[tex] MN = 9x - 11 [/tex]
[tex] KJ = 28 [/tex]
Required:
LJ
Solution:
Step 1: create an equation to find the value of x
Since we are given that LK = MK, and LK = 7x - 10, let's find the expression for MK to get an equation.
[tex] MK + KN = MN [/tex] (segment addition postulate)
[tex] MK = MN - KN [/tex] (Subtract KN from each side)
[tex] MK = (9x - 11) - (x + 3) [/tex] (subtitution)
[tex] MK = 9x - 11 - x - 3 [/tex]
[tex] MK = 9x - x - 11 - 3 [/tex]
[tex] MK = 8x - 14 [/tex]
LK = MK, therefore,
[tex] 7x - 10 = 8x - 14 [/tex]
Subtract 8x from each side
[tex] 7x - 10 - 8x = 8x - 14 - 8x [/tex]
[tex] -x - 10 = -14 [/tex]
Add 10 to both sides of the equation
[tex] -x - 10 + 10 = -14 + 10 [/tex]
[tex] -x = -4 [/tex]
Divide both sides by -1
[tex] x = 4 [/tex]
Step 2: Find LJ
[tex] LJ = LK + KJ [/tex] (segment addition postulate)
[tex] LJ = (7x - 10) + (28) [/tex]
Plug in the value of x
[tex] LJ = 7(4) - 10 + 28 [/tex]
[tex] LJ = 28 - 10 + 28 [/tex]
[tex] LJ = 46 [/tex]
cube root 343 ^-3/ root 4 81
Answer:
[tex]$\frac{1}{1029} $[/tex]
Step-by-step explanation:
[tex]$\frac{\sqrt[3]{343^{-3}}}{\sqrt[4]{81} } $[/tex]
[tex]$\boxed{\text{Property: } a^{-b}=\frac{1}{a^{b}}} $[/tex]
[tex]$\frac{\sqrt[3]{\frac{1}{343^{3}} }}{\sqrt[4]{81} } $[/tex]
[tex]$\frac{\frac{\sqrt[3]{1} }{\sqrt[3]{343^3} } }{\sqrt[4]{81} } $[/tex]
[tex]$\frac{\frac{1 }{343} }{3} $[/tex]
[tex]$\frac{342 \cdot \frac{1 }{343} }{343 \cdot 3} $[/tex]
[tex]$\frac{1}{1029} $[/tex]
Evaluate: 12+(-16)+24-18
Answer:
2.
Step-by-step explanation:
12 + (-16) + 24 - 18
= 36 - 34
= 2.
The value of the expression 12+(-16)+24-18 is 2, which can be computed using the commutative property.
What is the commutative property?The commutative property signifies that the order of terms in mathematical expressions does not matters. It applies only to addition and multiplication operations, and not to subtraction and division operations.
How to solve the given question?In the question, we are asked to evaluate: 12 + (-16) + 24 - 18.
By using the commutative property, we can write the expression
12 + (-16) + 24 - 18, as
= 12 + 24 + (-16) - 18
= 12 + 24 -16 - 18
= 36 - 34
= 2
∴ The value of the expression 12+(-16)+24-18 is 2, which can be computed using the commutative property.
Learn more about the commutative property at
https://brainly.com/question/778086
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Tavon has a gift card for $115 that loses $2.50 for each 30-day period it is not used. He has another gift card for $95 that loses $2 for each 30-day period it is not used.
The question is incomplete:
Tavon has a gift card for $115 that loses $2.50 for each 30-day period it is not used. He has another gift card for $95 that loses $2 for each 30-day period it is not used.
Write and solve an equation for the number of 30-day periods until the value of the gift cards will be equal.
Answer:
115-2.5x=95-2x
The value of the gift cards will be equal after 40 30-day periods.
Step-by-step explanation:
From the information given, you can write the following equation:
115-2.5x=95-2x, where x is the number of 30-day periods the gift card is not used.
Now, you can solve for x:
115-95=-2x+2.5x
20=0.5x
x=20/0.5
x=40
According to this, the answer is that the value of the gift cards will be equal after 40 30-day periods.
Tiki gets her hair cut every 4 months and gets a new shirt every 3 months. How many months a year with she get her hair cut and buy a new shirt in.the same month
Answer: Every 12 months (aka once a year)
=======================================================
Explanation:
List out the multiples of 4 and 3
Multiples of 4 = {4, 8, 12, 16, 20, 24, ...}
Multiples of 3 = {3, 6, 9, 12, 15, 18, 21, 24, ...}
The terms in bold are the common multiples between the two lists. The smallest or lowest common multiple (LCM) is 12. Every 12 months, or every 1 year, Tiki gets her hair cut and a new shirt in the same month.
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A shortcut to find the LCM is to multiply the values 4*3 = 12. This only works when the GCF of the two original numbers is 1.