Answer:
What's the fraction
Step-by-step explanation:
I need to know the fraction in order to solve
x2-4x=-4 Solve using quadratic formula (find x)
Answer:
x=2
Step-by-step explanation:
[tex]x^2-4x=-4[/tex]
[tex]x^2-4x+4=-4+4[/tex] (Add 4 to both sides)
[tex]x^2-4x+4=0[/tex]
Now, we can solve it using quadratic formula
[tex]x_{1,\:2}=\cfrac{-\left(-4\right)\pm \sqrt{\left(-4\right)^2-4* \:1* \:4}}{2* \:1}[/tex]
[tex]x_{1,\:2}=\cfrac{-\left(-4\right)\pm \sqrt{0}}{2* \:1}[/tex]
[tex]x=\cfrac{-\left(-4\right)}{2* \:1}[/tex]
[tex]x=2[/tex]
~
Add or subtract the following polynomials.
1. 7x-(4xy+12xy)-2
2. (5bc)-(5+bc)
3. 7+(2x-5x)+y
4. 6x+10+[3x-6x]
5. 3x²y-(5x²y)
With solutions pls
Answer 1:
7x-16xy-2
Answer 2:
4bc-5
Answer 3:
7-3x+y
Answer 4:
3x+10
Answer 5:
-2x²y
Solving Solutions Question #1
*Remove the parentheses for addition or subtraction*
[tex]7x-\left(4xy+12xy\right)-2[/tex]
*Determine the sign*
[tex]7x-4xy-12xy-2[/tex]
*Reorder and gather like terms*
[tex]7x+\left(-4xy-12xy\right)-2[/tex]
*Collect coefficients of like terms*
[tex]7x+\left(-4-12\right)\timesxy-2[/tex]
*Calculate the sum or difference*
[tex]7x-16xy-2[/tex]
Solving Solutions Question #2*Simplify or expand*
[tex]5bc-\left(5+bc\right)[/tex]
*Remove the parentheses for addition or subtraction*
[tex]5bc-5-bc[/tex]
*Reorder and gather like terms*
[tex]\left(5bc-bc\right)-5[/tex]
*Collect coefficients of like terms*
[tex]\left(5-1\right)[/tex] [tex]\times[/tex] [tex]bc-5[/tex]
*Collect the sum or difference*
[tex]4bc-5[/tex]
Solving Solution Question #3*Simplify or expand*
[tex]7+(2x-5x)+y[/tex]
*Determine the sign*
[tex]7+2x-5x+y[/tex]
*Reorder and gather like terms*
[tex]7+\left(2x-5x\right)+y[/tex]
*Collect coefficients of like terms*
[tex]7+\left(2-5\right)\timesx[/tex] [tex]\times[/tex] [tex]x+y[/tex]
*Calculate the sum or difference*
[tex]7-3x+y[/tex]
Solving Solution Question #4*Simplify or expand*
[tex]6x+10+(3x-6x)[/tex]
*Determine the sign*
[tex]6x+10+3x-6x[/tex]
*Reorder and gather like terms*
[tex](6x+3x-6x)+10[/tex]
*Collect coefficients of like terms*
[tex](6+3-6)[/tex] × [tex]x+10[/tex]
*Apply the Inverse Property of Addition*
[tex]3x+10[/tex]
Solving Solution #5*Simplify or expand*
[tex]3x^{2} y-5x^{2} y[/tex]
*Collect coefficients of like terms*
[tex](3-5)x^{2} y[/tex]
*Calculate the sum or difference*
[tex]-2x^{2} y[/tex]
I hope this helps you:)
Can someone answer this one
Answer:
3 sides
Step-by-step explanation:
A triangle has 3 sides.
Answer:
its 3
Step-by-step explanation:
you can know this if you have eyes:)
Help thanks due soon..
Solve for x. Round to the nearest tenth, if necessary.
Answer: 20.4
Step-by-step explanation:
Simplify the expression.
(In the picture)
Answer:
18x2y^2^3√3xy2 <-- scratch that its D
Step-by-step explanation:
Write a function rule for the table.
f(x) = 4 – x
f(x) = –4x
f(x) = x + 4
f(x) = x – 4
Answer:
f(x) = x – 4
checking for all the functions by replacing x as 3
f(x) = 4 – x
f(3) = 4 - 3
f(3) = 1
does not match
f(x) = –4x
f(3) = -4(3)
f(3) = -12
does not match
f(x) = x + 4
f(3) = 3 + 4
f(3) = 7
does not match
f(x) = x – 4
f(3) = 3 - 4
f(3) = -1
matches
Answer:
f(x) = x - 4
Step-by-step explanation:
The options are:
f(x) = 4 – x
f(x) = –4x
f(x) = x + 4
f(x) = x – 4
For f(x) = 4 – x, when x=3, f(x)=1 so it cannot be right.
For f(x) = –4x, when x=3, f(x)=-12 so it cannot be right either.
f(x) = x + 4, when x=3, f(x)=7 so it cannot be right.
The only choice left which is also the right answer is f(x) = x – 4
8
Angelo is a computer salesmen. Last month he sold 420 computers. His goal is sell 5% more computers this month.
What is the number of computers Angelo wants to sell this month?
84
441
Step-by-step explanation:
420-5%=399 so the diference is 21 so 21+420=441
Nate has an account that pays 2. 76% simple interest per year and wants to accumulate $3,090 in interest from it over the next 15 years. How much money should Nate invest in this account to meet this goal? a. $1,279. 26 b. $4,369. 26 c. $4,373. 77 d. $7,463. 77.
We have given that,
interest rate = 2.76%
simple interest = 3,090
term = 15 years
What is the principle of simple interest?[tex]Simple Interest = Principal * interest rate * term[/tex]
[tex]3,090 = Principal * .0276 * 15\\3,090 = Principal * 0.414\\3,090 / 0.414 = Principal\\7,463.77 = Principal[/tex]
Therefore,Nate should invest 7,463.77 to meet his goal.
To learn more about the simple interest visit:
https://brainly.com/question/25793394
You flip a coin and spin the spinner below. What is the probability that you flip heads and spin a number greater than 2?The spinner has 4 sides and 1-4
Answer:
1/2
Step-by-step explanation:
given the following geometric sequence: 1,3,9,27,81,...
Write an explicit formula that describes this sequence.
Using the formula, find the 18th term of the sequence
Answer:
The 18th term of the geometric sequence is [tex]a_{18}=129140163[/tex]
Step-by-step explanation:
[tex]a_n=a_1(r)^{n-1}\\\\a_{18}=1(3)^{18-1}\\\\a_{18}=3^{17}\\\\a_{18}=129140163[/tex]
Find an equation for the perpendicular bisector of the line segment whose endpoints are (5, 5) and ( 7, 1).
Answer:
x -2y = 0
Step-by-step explanation:
A perpendicular bisector is a line perpendicular to a given line or segment that goes through the midpoint between given points. The perpendicular line will have a slope that is the opposite reciprocal of the slope of the segment between the given points.
__
The midpoint between A and B is ...
M = (A +B)/2
M = ((5, 5) +(7, 1))/2 = (12, 6)/2 = (6, 3)
The slope of the line between A and B is ...
m = (y2 -y1)/(x2 -x1)
m = (1 -5)/(7 -5) = -4/2 = -2
__
The opposite reciprocal of the slope of the given segment is ...
m' = -1/-2 = 1/2
The point-slope form of the equation of the perpendicular bisector can be written as ...
y -k = m(x -h) . . . . . . line with slope m through point (h, k)
y -3 = 1/2(x -6) . . . . line with slope 1/2 through point (6, 3)
Multiplying by 2 gives ...
2y -6 = x -6
Subtracting (2y -6) gives the standard-form equation ...
x -2y = 0
Please solve and please make sure your correct
Answer:
(a) The ones that are equivalent to the given fraction are: [tex]\frac{2}{-9}[/tex] and [tex]-\frac{2}{9}[/tex]
(b) The one that is equivalent to the given fraction is: [tex]\frac{-8}{-5}[/tex]
There is a rope running from the top of a flagpole to a hook in the ground. The flagpole is 8 meters high, and the hook is 2 meters from its base. How long is the rope? If necessary, round to the nearest tenth.
ASAP Please!
Answer: 8.2m
Step-by-step explanation:
Let the hook that is 2m from the base represent a
Let the height of the flagpole represent b
The length of the rope (hypotenuse) is c
[tex]\begin{aligned}&a^{2}+b^{2}=c^{2} \\&2^{2}+8^{2}=c^{2} \\&4+64=c^{2} \\&\sqrt{68}=\sqrt{c}^{2}\end{aligned}\\c= 8.25m[/tex]
Please help, I’ll mark your answer as brainliest.
Answer:
Step-by-step explanation:
ABC is a triangle and PQ is parallel to BC.
BC = 12.6 cm, PQ = 8.4cm and AQ = 7.2 cm.
Find AC.
(i know that parallel lines divide triangle sides proportionally, but can someone do a detailed step on AC)
Somebody help me please
Answer:
see explanation
Step-by-step explanation:
given
(2x + 5)(2x - 1) ← expand using FOIL
(a)
= 4x² - 2x + 10x - 5 ← collect like terms
= 4x² + 8x - 5
(b)
using the method of completing the square on
4x² + 8x - 5 ← factor out 4 from the 1st 2 terms
= 4(x² + 2x) - 5
to complete the square
add/ subtract ( half the coefficient of the x- term )² to x² + 2x
= 4(x² + 2(1)x + 1 - 1) - 5
= 4(x + 1)² - 4 - 5
= 4(x + 1)² - 9
What region of the graph would satisfy the following system?
y < 2 + 3
3
--
2
2.
Answer:
Step-by-step explanation:
y < 2 + 3
2 < 5
This statement is correct
Mike’s wooden storage box is 25 inches by 36 inches by 39 inches what is the volume of mike’s box
Answer:
It would be 35100.
f(x) = (2x − 3)(x + 6)(5x + 6) has zeros at x = -6, x = -6/5 and x =3/2.
What is the sign of f on the interval - 6
Answer:
Step-by-step explanation:
f ( - 7 ) = [ 2 ( - 7 ) - 3]( - 7 + 6 )[ 5 ( - 7 ) + 6 ] = ( - 17 )( - 1 )( - 29 ) < 0 , Negative
f ( - 5 ) = [ 2 ( - 5 ) - 3]( - 5 + 6 )[ 5 ( - 5 ) + 6 ] = ( - 13 )( + 1 )( - 19 ) > 0 , Positive
f ( - 1 ) = [ 2 ( - 1 ) - 3]( - 1 + 6 )[ 5 ( - 1 ) + 6 ] = ( - 5 )( + 5 )( + 1 ) < 0 , Negative
The answer is (A) " f " is always POSITIVE
Since 12:00 a.m., a cold front has caused the temperature in a particular city to decrease at a constant rate. At 2:00 a.m., the temperature was 54 degrees Fahrenheit, and at 5:00 a.m., the temperature was 45 degrees Fahrenheit. Which of the following statements are correct? Select TWO that apply.
The temperature in a particular city to decrease at a constant rate of 3°F per hour.
What is an equation?An equation is an expression that shows the relationship between two or more numbers and variables.
At 2:00 a.m., the temperature was 54 degrees Fahrenheit, and at 5:00 a.m., the temperature was 45 degrees Fahrenheit. Hence:
Rate of change = (45°F - 54°F) / (5 - 2) = -3
The temperature in a particular city to decrease at a constant rate of 3°F per hour.
Find out more on equation at: https://brainly.com/question/2972832
put 3/5 as a decimal and is it a terminating or repeating decimal?
Answer:
3/5 as a decimal is 0.6 and it is terminating not repeating
Step-by-step explanation:
please help with this and solve it using the equation
Answer:
E
Step-by-step explanation:
17-9=8 so the answer is 8
The Ricci family's restaurant bill is $124.00. If they tip their server 20% of the bill, how much is their total bill with the tip included?
A.$126.48
B.$144.00
C.$142.60
D.$142.60
[tex][Hello,BrainlyUser][/tex]
Is your question incomplete?
Answer:
$148.80
Step-by-step explanation:
Tip = Increase also known as Add
$124.00 x 20% =24.80
$124.00 + 24.80= 148.80
As you can see it not an answer choice
.Please tell me if it missing anything..
[CloudBreeze]
41% of 78 is what? i am very lost
Answer:
[tex]31.98[/tex]
Step-by-step explanation:
Given the following question:
41% of 78
In order to find the answer, we will use the formula to calculate percentages and solve.
[tex]\frac{p\times n}{100}[/tex]
[tex]\frac{41\times78}{100} =41\times78=3198\div100=31.98[/tex]
[tex]=31.98[/tex]
41% of 78 is indeed "31.98."
Hope this helps.
A stone pyramid in Egypt has a square base that measures 149 m on each side. The height is 91 m. What is the volume of the pyramid
Check the picture below.
[tex]\textit{volume of a pyramid}\\\\ V=\cfrac{Bh}{3}~~ \begin{cases} B=\stackrel{base}{area}\\ h=height\\[-0.5em] \hrulefill\\ B=\stackrel{149\times 149}{22201}\\ h=91 \end{cases}\implies V=\cfrac{(22201)(91)}{3}\implies V=673430.\overline{3}~m^3[/tex]
A new fitness center opens with 120 members. Every month the fitness center increases the number of members by 40 members. How many members will the fitness center have after being open for 3 months?
Answer:
240 members
Step-by-step explanation:
Let y = total and x = no. of months
y = 40x + 120
= 40(3) + 120
= 120 + 120
= 240 members
PLEASE HELP ME AND MAKE SURE TO EXPLAIN!!!
The lowest recorded temperature in Wisconsin is -55 F on to find this temperature in degrees Celsius . (5(F - 32))/9 Round to the nearest tenth . Explain its meaning .
Find the values of x and y.
Answer:
x = 12 , y = 60
Step-by-step explanation:
The figure has 2 pairs of parallel sides and is therefore a parallelogram.
The opposite sides and opposite angles are congruent , then
x + 3 = 15 ( subtract 3 from both sides )
x = 12
and y = 60
I need help with these problems can anyone explain this to me?
I'd love to help!
What's your question?
Brainliest