Answer:
9x²-1
Step-by-step explanation:
[tex](3x - 1)(3x + 1) = 9 {x}^{2} - 1[/tex]
Answer:
Step-by-step explanation:
Graph for (3*x-1)*(x+2*x+1)
a water tank is draining at a constant rate if after five minutes the tank is drained by 4.5 gallons what is the rate in gallons per minute at the tank is draining
Answer:
The rate is 0.9 gallon per minute
Step-by-step explanation:
Here, we have 4.5 gallons drained in 5 minutes but we are interested in calculating the rate per minute
Let the amount drained per minute be x
4.5 gallons = 5 minutes
x gallon = 1 minute
Let’s cross multiply;
x * 5 = 4.5 * 1
5x = 4.5
x = 4.5/5
x = 0.9 gallons
Is 7.52 a rational number?
Answer:
It's a decimal number......
-1220 estimated to the nearest integer
Answer:
1000
Step-by-step explanation:
1 is the nearest in 1.2
1/2(-10x+4)= -4(-3+2x)+8
Answer:
6 is the answer
Step-by-step explanation:
Is (5, 2) a solution to the equation y = 8x?
Hey there! I'm happy to help!
To satisfy this equation, the y value has to be 8 times the x.
If you multiply 5 by 8, you get 40, not 2, so this is not a solution. The point (5,40) would be.
Have a wonderful day! :D
All we need to do is substitute and check.
5 = x
2 = y
y = 8x
2 = 8(5)
2 does not equal 40
Best of Luck!
what is the solution to 4x-14+3x=161
Answer:
x = 175/7
Step-by-step explanation:
Combining the like terms in 4x-14+3x=161, we get
7x = 175, and so:
x = 175/7
i need to know what order these go in!!! can someone help me answer this please and thankyouu
Answer:
PEMDAS: Parentheses, exponents, multiplication, division, addition, subtraction
ANSWER:
-parentheses and other grouping symbols from the inside out
-exponents
-multiplication and division from left to right
-addition and subtraction from left to right
Which equation has the solution n = 11?
Answer:
3n + 12 = 45
Step-by-step explanation:
*Process of elimination*
___________________
3n + 12 = 45
(given)
_________
3n + 12 = 45
- 12 - 12
(subtraction property of equality)
__________________________
3n = 33
÷ 3 ÷ 3
(division property of equality)
_______________________
n = 11
_____
7n - 8 = 62
(given)
________
7n - 8 = 62
+ 8 + 8
(addition property of equality)
__________________________
7n = 70
÷ 7 ÷ 7
(division property of equality)
_______________________
n = 10 ≠ 11
________
8n + 6 = 102
(given)
________
8n + 6 = 102
- 6 - 6
(subtraction property of equality)
__________________________
8n = 96
÷8 ÷8
(division property of equality)
_______________________
n = 12 ≠ 11
________
5n - 20 = 25
(given)
________
5n - 20 = 25
+ 20 + 20
(addition property of equality)
__________________________
5n = 45
÷5 ÷5
(division property of equality)
_______________________
n = 9 ≠ 11
Can an equation with the variable inside grouping symbols be written as a two step equation
Answer:
yes
Step-by-step explanation:
In general, a linear equation with a variable anywhere can be written as a 2-step equation. (It may take several steps to get there.)
Example 1:
2(3x +3) = 18 . . . original equation with variable in parentheses
6x +6 = 18 . . . . . 2-step equivalent
Example 2:
4(x -9) +6 = 3(2x +17) . . . original equation
4x -36 +6 = 6x +51
-30 = 2x +51 . . . . . . 2-step equivalent
Answer:
Yes
Step-by-step explanation:
Simplify.
y+ (15+ y)
15+ y
O 17 y
15 y
15 + 2 y
Answer:
15 + 2y
Step-by-step explanation:
explanation answer
= 15+2 y
Whoever (ANSWERS ) first will get brainliest!!!
IF you DO not show work or any explaining I'm not giving you Brainliest.
Answer:
A and D
Step-by-step explanation:
A) 10+2^3*4-1 D) 10+(2^3*4)-1
10+8*4-1 10+(8*4)-1
10+32-1 10+32-1
42-1 42-1
41 41
O A counterclockwise rotation of 90° about the origin
O A counterclockwise rotation of 270° about the origin
A reflection over the y-axis
O A reflection over the x-axis
Answer:
A counterclockwise rotation of 270° about the origin
Step-by-step explanation:
Which is a counterexample for the conditional statement shown?
If the numerator of a fraction is larger than the denominator of the fraction, then the fraction is greater than 1.
any fraction with a denominator of O
any fraction with a numerator of O
any fraction with a positive numerator and a negative denominator
any fraction with a negative numerator and a positive denominator
Answer: It is c
Step-by-step explanation: Im doing the test and did some research.
But if you are seweing this on 9/22/2020 please wait for me to put the confirmed answer in the comments.
Answer:
It's c
Step-by-step explanation:
I need help on dis! Could someone please help me?! It would me a lot!!!!! Thank chu!
Rewards- Brainliest and 15+ points!
Answer:
1. 2
2. 5/36
3. 8 ¹/₆
4. - 4/11
Step-by-step explanation:
1.
2⁴/₅ + (-¹²/₁₅)
= ¹⁴/₅ - ¹²/₁₅
= ¹⁴/₅ - ⁴/₅
= 14 - 4
5
= 10/5
= 2
-----------------------------
2.
- 3/4 - (- 8/9)
= 5 / 36
-----------------------------
3.
- 3 ¹/₂ (- 2 ¹/₃)
= -7/2 * 7/3
= 7 * 7
2 * 3
= 49/6
= 8 ¹/₆
-----------------------------
4.
- 1/4 ÷ 11/16
= - 1/4 * 16/11
= - 16/44
= - 4/11
1) Jan is buying new flooring for her kitchen. The kitchen is a rectangle that is 3
meters long and 2 meters wide. How much flooring does Jan need to buy?
Answer:
6 meters of Flooring.
Step-by-step explanation:
I could be wrong but I’m pretty sure this question is Length x Width to find the Area of the “Room” or “Triangle.”. <3
Choose the expression that best represents the phrase below.
...the sum of 24 and 3...
A. 3 /24
B. 24 + 3
C. 24 /3
D. 3.24
E. 3-24
F. 24-3
Answer:
B.) 24 + 3
Step-by-step explanation:
The sum is the answer you get after you add two or more numbers. So, you would be adding 24 and 3, giving you B.) 24+3.
Hope this helps!
let f(x)=5x-2 and g (x)=6x+3 find g(f(3))
Answer:
81
Step-by-step explanation:
f(x)=5x-2
g (x)=6x+3
g(f(3))
First find f(3)
f(3) = 5*3 -2
= 15-2
= 13
Then find g(13)
g(13) = 6*13 +3
=78 +3
= 81
Answer:
81
Step-by-step explanation:
Solve 3 as x
5(3)-2
15-2
143
Now use 13 as x
6(13)+3
78+3
81
Hope this helps! Plz award Brainliest : )
Consider this expression
[tex] \sqrt{a}^{3} - 7 + |b| [/tex]
When a = 2 and b = -4, the value of the expression is ____
Answer:
I hope it will help you..
On putting the values in the algebraic expression, the value is [tex]\sqrt[3]{2}-3\\[/tex].
What is algebraic expression?An algebraic expression in mathematics is an expression which is made up of variables and constants, along with algebraic operations.
[tex]\sqrt{a} ^{3}-7+|b|\\ \\\sqrt[3]{2}-7+|-4|\\ \\\sqrt[3]{2}-3\\ \\[/tex]
Learn more about algebraic expression here
https://brainly.com/question/953809
#SPJ3
Determine whether the relation {(9, 3), (6,2), (3, 2), (3, 1), (6,-2)} is a function. Explain why/Why
not.
Answer:
Since x=3 produces y=2 and y=1, the relation (9,3),(6,2),(3,2),(3,1),(6,-2) is not a function
Step-by-step explanation:
Its right.
1. Solve by elimination.
9x – 5 y = -12
-9x + 5y = 12
And show work pls
Answer:
9x – 5 y = -12
any point along this line
Step-by-step explanation:
9x – 5 y = -12
-9x + 5y = 12
Add the two equations
9x – 5 y = -12
-9x + 5y = 12
-------------------------
0x + 0y = 0
There are infinite solutions since the y are the same line
Complete the statement with < >, or =. square root of -20 -4
Answer:
-20 < -4
Step-by-step explanation:
-4 is greater value then -20 think of it like its on a number line
---------------------------------------------------------------
-5 -4 -3 -2 -1 0 1 2 3 4 5, the lower the negative, the less it will take off of a positive and the more positive value it holds
Ixl+2 | x | for all real numbers x,
O True
O False
distribute the following expression 4 ( g + 9 ) PLEASE PLEASE PLEASE SHOW YOUR WORK
Answer:
4g+36
Step-by-step explanation:
4 X g = 4g
4x9 = 36
15 x 15 x 15 as a power
Answer:
[tex]15^{3}[/tex]
Step-by-step explanation:
[tex]15 * 15 *15 \\15^{3}[/tex]
After paying eight dollars for the pie, Mike has eighty - one dollars left, his friend has thirteen dollars. How much money did he have before buying the pie
Answer:
__ - 8=81
unsure if we're adding his friend but for this i assume no,
81+ 8 = 89
so its either 89 or
89+13=102
a flight overbooked by 4 passengers as a integer
Answer:
k
Step-by-step explanation:
The integer representing a flight overbooked by 4 passengers is given as -
k = x + 4
What is Equation Modelling?Equation modelling is the process of writing a mathematical verbal expression in the form of a mathematical expression for correct analysis, observations and results of the given problem.
Given is a flight overbooked by 4 passengers.
Assume that the total capacity of the flight is given by integer x.
Also assume that after over booked by 4 passengers, its capacity is given by integer k. So we can write the equation as -
k = x + 4
Therefore, the integer representing a flight overbooked by 4 passengers is given as -
k = x + 4
To solve more questions on equation modelling, visit the link below-
brainly.com/question/6593383
#SPJ2
help plz anything works
5 weeks -> $20
Divide 5:
1 week -> $4
Replace week with "w" and $ with "s"
[tex]w=4s[/tex]
1. Solve each equation for x. a. X – 10 = 0
A total of 61 people attended Tamaras party. Tamaras brother invited some of the guests. All people invited attended party. If Tamara invited 19 more people than her brother did, how many people did Tamara invite and how many people did her brother invite?
Answer: Tamara invited 42 people
Step-by-step explanation:
61-19=42
An quadrilateral is graphed on the coordinate plane. One of its vertices is translated 5 units to the right. Which of the following options best represents the translation?
x + 5
x - 5
y + 5
y - 5
Answer:
the answer is X+5
Step-by-step explanation:
hope this helps
