Answer:
5 or -8
Step-by-step explanation:
[tex](3 \times x) + x {}^{2} = 40[/tex]
[tex]3x + {x}^{2} = 40[/tex]
[tex] {x}^{2} + 3x - 40 = 0[/tex]
using factorization method
[tex]( {x}^{2} + 8x) ( - 5x - 40) = 0[/tex]
[tex]x(x + 8) - 5(x + 8) = 0[/tex]
[tex](x - 5)(x + 8) = 0[/tex]
[tex]x - 5 = 0[/tex]
or
[tex]x + 8 = 0[/tex]
[tex]x = 5[/tex]
or
[tex]x = - 8[/tex]
Which expressions are equivalent to 3x+3(x+y)3x+3(x+y)3, x, plus, 3, left parenthesis, x, plus, y, right parenthesis
The question is incomplete. The complete question is :
Which expressions are equivalent to 3x+3(x+y)3x+3(x+y)3, x, plus, 3, left parenthesis, x, plus, y, right parenthesis ? Choose all answers that apply:
(Choice A) A 6x+3y6x+3y6, x, plus, 3, y
(Choice B) B 3(x+x+y)3(x+x+y)3, left parenthesis, x, plus, x, plus, y, right parenthesis
(Choice C) C 3xy3xy
Solution :
The equation is given as follows :
3x + 3(x+y)
We can simplify the equation in order to determine the equivalent expression.
Now applying the distributive property,
[tex]$3x+(3)(x)+(y)(3)$[/tex]
[tex]$=3x+3x+3y$[/tex]
When we add the like terms we get :
3x+3x+3y = 6x + 3y
When we factor out the term 3, we get :
3x + 3x + 3y = 3(x + x + y)
So, the expressions in options (B) and (C) are equivalent to the expression 3x + 3(x + y).
Answer:
Step-by-step explanation:
The question is incomplete. The complete question is :
Which expressions are equivalent to 3x+3(x+y)3x+3(x+y)3, x, plus, 3, left parenthesis, x, plus, y, right parenthesis ? Choose all answers that apply:
(Choice A) A 6x+3y6x+3y6, x, plus, 3, y
(Choice B) B 3(x+x+y)3(x+x+y)3, left parenthesis, x, plus, x, plus, y, right parenthesis
(Choice C) C 3xy3xy
Solution :
The equation is given as follows :
3x + 3(x+y)
We can simplify the equation in order to determine the equivalent expression.
Now applying the distributive property,
When we add the like terms we get :
3x+3x+3y = 6x + 3y
When we factor out the term 3, we get :
3x + 3x + 3y = 3(x + x + y)
So, the expressions in options (B) and (C) are equivalent to the expression 3x + 3(x + y).
If who answers fast, correct and first, I WILL GIVE YOU THE BRAINLIEST!!!!!!!!!!!
what is the souloution to the equation x^2-4x+4=2x
Answer:
x=3+sqrt5, x=3-sqrt5
Step-by-step explanation:
can someone please help me is the answer-8
Answer:
h(-8)=-8
Step-by-step explanation:
Since we are finding h(-8), we plug -8 into the equation:
h(-8)=((-8)²+3(-8))/(4(-8)+27)
h(-8)=(64-24)/(-32+27)
h(-8)=40/-5
h(-8)=-8
Therefore, h(-8)=-8, which means your answer is correct!
there are 6 soccer teams playing in a weekend tournament. 2 players are removed from each team to form a new team. The total number of players at the tournament is 90 .....
I NEED HELPPPPP PLEASEEEEEE
Please help me with my geometry
Answer:
ab=de, bc=ef, ac=df
Step-by-step explanation:
The 30 female nurses at Memorial Medical Center make up 15% of the entire Med Center personnel. What is the total number of employees at Memorial Medical Center?
Answer:
200 employees
Step-by-step explanation:
The 30 female nurses at Memorial Medical Center make up 15% of the entire Med Center personnel. What is the total number of employees at Memorial Medical Center?
Let the total number of employees = x
Our Equation=
15% of x = 30 female nurses
15/100 × x = 30
15x /100 = 30
Cross Multiply
15x = 100 × 30
x = 3000/15
x = 200
Number of employees = 200
HELP ASAP!!!!! 25 POINTS + BRAINLIEST!!!!
(if it is not a ligament answer, i will report)
Answer:
2 x 3(x + 4) + 2 x 7(x + 2) = 20x + 52
Step-by-step explanation:
2 x 3(x + 4) + 2 x 7(x + 2) = 6x + 24 + 14x + 28 = 20x + 52
NEED ASAP Which line is parallel to the line y=4x-2?
Answer:
y = 4x + 1
Step-by-step explanation:
Given the equation y = 4x - 2, we need to find the equation parallel to this line. Note that for two equations to be parallel to each other, the must have the same slope
Standard form of an equation is y = mx + b
Compare;
mx = 4x
m = 4
Since the slope of the given equation is 4, the required equation must also have a slope of 4
Since we are not given an option, we can assume any equation with a slope of 4
y = 4x + 1 will be parallel to the given equation since they both have the same slope
Note that the equation can be different so far they have the slope of 4
Can someone please help me!!!
Answer: x=20
Step-by-step explanation:
If im wrong, sorry
The angles of a triangle add up to 180 degrees.
(3x+5)+(2x+17)+(2x+18)=180
add the ones alike
3x + 2x + 2x=7x
5+17+18=40
so, 7x+40=180
we need to get the variable by itself so we take away 40 first by subtracting it from both sides of the equal sign
7x=140
we take away 7 from x by dividing it- opposite of multiplication is division
x=20
Answer:
x = 20
Step-by-step explanation:
3x+5° + 2x+18° + 2x+17° = 180° (sum of interior angles in a triangle is 180°)
collect like terms
3x + 2x + 2x + 5° + 18° + 17° = 180°
7x + 40° = 180°
solving for x
x = (180 - 40)/7
x = 140/7
x = 20
Ms. Burk asked her students to simplify expressions. The students answers 4 points
are in the table below. Select the correct option for each expression. *
Student Equivalent Expressions
Emily 3t + 5t - 2t = 6t
Joseph 6(2b + 5) = 12b x 30
Nico
2(5r - 9) = 10r - 18
Katie 5(4d - 5) =20d - 25
Answer: is the teacher mr.Burks? what school you go to if it is costa mesa high i know i had her and still have the notes!
i think it its nico and katie but just wait for someone else to answer
Step-by-step explanation:
need help pls
......
Answer:
I believe B is the correct answer ?
Step-by-step explanation:
Since the is a negative sign already there that turns the -3 into just 3 so the equation turns into 3-6 which is -3 so...
3-6<3.5
Help not much time left its due in 20 mins
Answer:
The slope is 2/3
Step-by-step explanation:
To get from one dot to the next...
You go up 2 units and to the right 3 units
In Hillsboro's wig shop, 1/2 of the wigs are blonde and 1/12 of the wigs are brunette. What fraction of the wigs are either blonde or brunette?
Answer:
7/12
Step-by-step explanation:
So, the probability of picking up a blonde wig = 1/2
The probabiliy of picking up a brunette wig = 1/12
The question asks to find th eprobability of picking up either of these types of wigs =
1/2 + 1/12
= 6/12 + 1/12 ( LCM of 12 and 1 is 12 )
= 7/12
Hope this helps
Uehehejjdjdjejjejejjdjdjejejejejejjejejejeejjd
Answer:
kgkbfkbfbk3grrkmfbhrfikrk
Answer:
thank you for the free point i guess
Step-by-step explanation:
can u mark me brainlest plz
gjnrijnrtibfnsibneifn
You can buy 5 pens for $3.75 What is the price for 1 pen?
Answer: 0.75
Step-by-step explanation:
3.75/5 = 0.75$
Wyatt does 29 push-ups in the morning and 36 more push-ups in the evening. If he does the same number of push-ups every day of the week for 4 weeks, about how many push-ups will he do in all?
Answer: 1,820 Pushups
Step-by-step explanation: 29+36=65
65 x 7 (days in a week)=455
455 x 4(as in the 4 weeks)=1,820 Pushups total
I hope this helped! let me know if you need more help! :)
PLEASE HELP. NO LINKS. NEED REAL EXPLANATION.
Find the volume of a cone with a height of 8in and a base radius of 3in.
Use the value 3.14 for pi, and do not do any rounding. Be sure to include the correct unit in your answer.
Answer:
75.36 in3
Step-by-step explanation:
Mark me brainliest?
How many ounces are in 18 pounds?
144 ounces
180 ounces
216 ounces
288 ounces
Answer:
it would be 288
Step-by-step explanation:
there are 16 ounces in 1 pound so if you took 16 x 18 it would give you 288.
i did that becasue if theres
so with 18 pounds and 16 onzes are in 1 pound so I multipyed them togher to get 288
i checkd this with my bio teacher she said 288 is corrcet.
Order these numbers from greatest to least: 425
4
25
, 0.40, 4%, 38%.
Answer:
425, 25, 4, 0.40, 38%, and 4%.
Step-by-step explanation:
I hope this helps! Have a great rest of your day!
Answer:
425, 25, 4, .40, 38%, 4%
Step-by-step explanation:
38% is equal to .38 and 4% is equal to .04
they're less than .40 so they are at the end.
Calculate the discriminant f(x)=x2-4x+7
Answer:
Option 1,3,4,6 are correct
Explanation
Step-by-step explanation:
we have formula for discriminant that is D=b^{2} -4acD=b
2
−4ac
when D>0 the roots are real and unequal
when D= 0 roots are real and equal
and when D< 0 roots are imaginary or not real and unequal
In 1st equation: x^2+6x+8x
2
+6x+8
a=1,b=6,c=8 on substituting the values in the formula we will get
D=6^2-4(1)(8)=4 > 0D=6
2
−4(1)(8)=4>0 hence real and unequal roots.
In 2nd equation:x^2+4x+8x
2
+4x+8
a=1,b=4,c=8 on substituting values in formula
D=4^2-4(1)(8)=-16 < 0D=4
2
−4(1)(8)=−16<0 so roots are not real
In 3rd equation x^2-12x+3x
2
−12x+3
a=1,b=-12,c=3 on substituting values
D=D=(-12)^2-4(1)(3)=132 > 0D=(−12)
2
−4(1)(3)=132>0 roots are real and unequal
In 4th equation: x^2+4x-1x
2
+4x−1
a=1,b=4,c=-1 on substituting the values
D= 4^2-4(1)(-1)=20 > 0D=4
2
−4(1)(−1)=20>0 real roots
In 5th equation:5x^2+5x+45x
2
+5x+4
a=5,b=5,c=4 on substituting the values
D=5^2-4(5)(4)=-55 < 0D=5
2
−4(5)(4)=−55<0 roots are not real
In 6th Equation: x^2-2x-15x
2
−2x−15
a=1,b=-2,c=-15 on substituting the values
D=(-2)^2-4(1)(-15)=64 > 0D=(−2)
2
−4(1)(−15)=64>0 roots are real
Let f(x)=-3x+7 and g(x)=2x^2-8
Find f(x)+g(x)
Choose the best answer
A)-2x^2 - 3x +15
B) -x^2 - 1
C) 5x^2 +15
D) 2x^2 - 3x - 1
Answer:
D
Step-by-step explanation:
What is the area 38cm 16cm 20cm 18cm
The heights of all 12-year old girls in the U.S. Are normally distributed with a mean of 60.5 inches and a standard deviation of 3 inches. What is probability that a girl chosen at random from a that age group with have a height of at least 69.5 inches?
what is the volume of the cylinder below?
Answer:
B. 2488π
Step-by-step explanation:
Formula: πr2h
π x 12^2 x 17 = π x 144 x 17 = 2488π
Kyle collects rainwater in two barrels. Last week one barrel collected 1.46 gallons of rainwater. The other barrel collected 0.751 gallon of rainwater.
What was the total amount of rainwater that Kyle collected last week?
Answer:
Step-by-step explanation:
Total amount of rainwater that Kyle collected = 1.46 + 0.751 = 2.211 gallons
Factor the polynomial by its greatest common monomia
365 + 1564 - 1867
WILL MARK BRAINLIEST
4. Find x.
A) 10
B) 10.5
C) 11
D) 11.5
10.5 ( near parallel to the one next to x which will equal 11 or 11.5 but 10.5 is associated with its compression.
Answer = 10.5
(thanks if you give branliest it is always appreciated)
need it done quickly
Answer:
363636
Step-by-step explanation:
756 x 481
simplify y = (204 - 12p) /12
Answer:
y = 17 - p
Step-by-step explanation:
Given y = (204 - 12p) /12
we need to simplify
To do so all we have to do is divide what is inside of the parenthesis by 12
204/12=17
-12p/12=-p
we're left with y = 17 - p